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Home My WebLink About20213388.tiff186, MEMORANDUM DATE: August 23, 2022 G O_U N T Y FROM: Lyndsay Holbrook, MS4 Administrator SUBJECT: PW Stormwater Improvements Project Due to weather supply chain issues, the Board of County Commissioners granted a 45 -day extension to the PW Stormwater Improvements project (Contract #5513), with a new completion date of August 5, 2022. Since supply chain issues continued to delay work progress, specifically concrete and asphalt, Public Works extended the deadline by an additional 21 days, as the contract allows. However, the upcoming deadline of Friday, August 26th cannot be met due to current conflicting construction projects located in close proximity in the area, specifically the fire line installation for the new PW storage shed, which is a separate contract managed by the Facilities Department. According to the Facilities Department and LBI Construction, the fire line installation should be finished within two days. Final paving for the PW Stormwater Improvements Project is scheduled starting this weekend, August 27th. Therefore, Public Works is extending L4's deadline to September 4, 2022, for a total of 30 days, as allowed by the contract. Since paving is the last significant item left on the project, Public Works does not anticipate any additional contract time extensions. 0cmMimil33g� g -a9 -tea 6ogo 1861 MEMORANDUM DATE: August 2, 2022 G O N T Y FROM: Lyndsay Holbrook, MS4 Administrator SUBJECT: PW Stormwater Improvements Project Due to weather supply chain issues, the Board of County Commissioners granted a 45 -day extension to the PW Stormwater Improvements project (Contract #5513), with a new completion date of August 5, 2022. Since supply chain issues continue to delay work progress, specifically concrete and asphalt, Public Works is extending the deadline by an additional 21 days, as the contract allows. The new date of completion is August 26, 2022. This time extension does not include a monetary change to the project. CJ?mmvn;Co.*ions ac l- 33-' - ogiaa 1 as EGOC) o �6y�vac+ b�ftoV-I BOARD OF COUNTY COMMISSIONERS PASS AROUND REVIEW PASS -AROUND TITLE: PW Stormwater Improvements 45 -day Contract Extension DEPARTMENT: Public Works DATE: June 9, 2022 PERSON REQUESTING: Lyndsay Holbrook, MS4 Administrator Brief description of the problem/issue: Due to weather and supply chain issues, Public Works is requesting a contract extension for the PW Stormwater Improvements (Contract #5513) by 45 days. See attached Change Order No. 1. This is for a time extension only, not a monetary change. What options exist for the Board? (include consequences, impacts, costs, etc. of options): f Option #1 - Approve 45 -day contract extension. Option #2 — Schedule a work session. Recommendation: Approve 45 -day contract extension. Schedule Work Session Other/Comments: Perry L. Buck Mike Freeman, Pro -Tern Scott K. James, Chair Steve Moreno Lori Saine Olo/ZZ/2Z CONTRACT AGREEMENT EXTENSION/RENEWAL BETWEEN THE WELD COUNTY DEPARTMENT OF PUBLIC WORKS AND L4 CONSTRUCTION, DBA L4 ENVIRONMENTAL This Agreement Extension/Renewal ("Renewal"), made and entered into 16TH day of JUNE, 2022, by and between the Board of Weld County Commissioners, on behalf of the Weld County Department of Public Works, hereinafter referred to as the "Department", and L4 ENVIRONMENTAL, hereinafter referred to as the "Contractor". WHEREAS the parties entered into an agreement (the "Original Agreement") identified by the Weld County Clerk to the Board of County Commissioners as document No. 5513, approved on JANUARY 17T—", 2022. WHEREAS the parties hereby agree to extend the term of the Original Agreement in accordance with the terms of the Original Agreement, which is incorporated by reference herein, as well as the terms provided herein. NOW THEREFORE, in consideration of the premises, the parties hereto covenant and agree as follows: • The Original Agreement will end on JUNE 21ST, 2022. The parties agree to extend the Original Agreement for an additional 45 DAY period, which will begin JUNE 22ND 2022, and will end on AUGUST 5TH 2022. • The Renewal, together with the Original Agreement, constitutes the entire understanding between the parties. The following change is hereby made to the Contract Documents, which shall be effective upon the expiration of the current term of the Original Agreement: 1. N/A 2. N/A • All other terms and conditions of the Original Agreement remain unchanged. IN WITNESS WHEREOF, the parties hereto have duly executed the Agreement as of the day, month, and year first above written. CONTRACTOR: Kyle Donaghy Printed Name Si ature BOARD OF COUNTY COMMISSIONERS WELD OUNTY, COLORADO Sc K. James, Chair JUN 2 2 2022 ./I " ,,../ • L ATT Wel BY: New Contract Request Entity Information EntityName* Entity ID* L4 CONSTRUCTION LLC 9' 10039420 Contract N * PUBLIC WORKS STORMWATER IMPROVEMENTS Contract Status CTB REVIEW ❑ New Entity? Contract ID 6014 Contract Lead* LHOLRROOK Contract Lead Email lholbrook - eldgov.com Contract Description* NO COST EXTENTION FOR CONTRACT TIME EXTENSION ONLY. PASS -AROUND WAS APPROVED BY ALL FIVE COMMISSIONERS ON 6912022. Contract Description 2 Contract Type * mTtent CHANGE ORDER PUBLIC WORKS Amount* Department Email $000 CM- PublicWorks@-eldgov.corn Renewable NO Department Head a ill CM-PubflcWorks- Automatic RenewalDeptHeadti eldgov.corn Grant County Attorney GENERAL COUNT' ATTORNEY EMAIL County Attorney Email CM- COUNTYA ORNExz • ELDC OV.COM if this is a renewal enter previous Contract ID If this is part of a MSA enter Contract ID Requested 8OCC Agenda Due Date Date* 06162022 06,20/2022 Will a work session with 8OCC be required?* NO i ti T17im Ii Note: the Previous Contract Number and Master Services Agreement Number should be left blank if those contracts are not in OnBase Contract Dates Effective Date * Renewal Date 07 25;'2022 Termination Notice Comm tted Delivery Date Expiration Date 08:05/2022 Contact Information Contact info Contact Name Contact Type Contact Email Contact Phone i Contact Phone 2 Purchasing Purchasing Approver Purchasing Approved Date CONSENT 06/ 16$`2022 Approval Process Department Head Finance Approver Legal nsel JAY MCDONAW CONSENT CONSENT DH Approved Date Finance Approved Date Legal Counsel Approved Date 06(16/2022 06:16,2022 06/16,/2022 Final Approval BOCC Approved Tyler Ref AG 062222 BOCC Signed Date C Agenda Date 06,122,?2022 BOARD OF COUNTY COMMISSIONERS PASS -AROUND REVIEW PASS -AROUND TITLE: PW Stormwater Improvements Contract — L4 Environmental DEPARTMENT: Public Works DATE: 01/07/2022 PERSON REQUESTING: Lyndsay Holbrook Brief description of the problem/issue: On December 27, 2021, the Board approved the award of Bid# B2100076 for the PW Stormwater Improvements project to L4 Environmental in the amount of $1,852,120. All contract documents have been completed and reviewed by the County Attorney's Office. Therefore, the contract is ready to be placed on the Board's agenda for signature. Construction is anticipated to begin in February. What options exist for the Board? (include consequences, impacts, costs, etc. of options): 1. Approve adding the Construction Services Agreement contract to the next available Board agenda. 2. Do not approve the contract and schedule a work session to discuss further. Recommendation: Staff recommends approval of this contract and placement on the next available Board agenda. Approve Schedule Recommendation Work Session Other/Comments: Perry L. Buck Mike Freeman, Pro -Tern YY\l' Scott K. James, Chair ________ Steve Moreno Lori Saine pl/1Z12Z 202► -338$' �C� oni'1 AGREEMENT FOR CONSTRUCTION SERVICES BETWEEN WELD COUNTY & L4 CONSTRUCTION, LLC (DBA L4 ENVIRONMENTAL) PW STORM WATER IMPROVEMENTS PROJECT THIS AGREEMENT is made and entered into this 28th day of December 2021, by and between the Board of Weld County Commissioners, on behalf of the Department of Public Works, hereinafter referred to as "County," and L4 Environmental hereinafter referred to as "Contractor". WHEREAS, County desires to retain Contractor to perform construction services as required by County and set forth in the attached Exhibits; and WHEREAS, Contractor is willing to perform and has the specific ability, qualifications, and time to perform the required construction services to provide the services according to the terms of this Agreement; and WHEREAS, Contractor is authorized to do business in the State of Colorado and has the time, skill, expertise, and experience necessary to provide the equipment, materials and services as set forth below; NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein, the parties hereto agree as follows: 1. Introduction. The terms of this Agreement are contained in the terms recited in this document and in the Exhibits, each of which forms an integral part of this Agreement and are incorporated herein. The parties each acknowledge and agree that this Agreement, including the attached Exhibits, define the performance obligations of Contractor and Contractor's willingness and ability to meet those requirements (the "Work"). If a conflict occurs between this Agreement and any Exhibit or other attached document, the terms of this Agreement shall control, and the remaining order of precedence shall based upon order of attachment. Exhibit A consists of County's Request for Bid (RFB) as set forth in Bid Package No. B2100076 Exhibit B consists of Contractor's Response to County's Request for Bid. 2. Service or Work. Contractor agrees to procure the materials, equipment and/or products necessary for the Work and agrees to diligently provide all services, labor, personnel and materials necessary to perform and complete the Work described in the attached Exhibits. Contractor shall faithfully perform the Work in accordance with the standards of professional care, skill, training, diligence and judgment provided by highly competent Contractors performing construction services of a similar nature to those described in this Agreement. Contractor shall further be responsible for the timely completion and acknowledges that a failure to comply with the standards and requirements of Work within the time limits prescribed by County may result in County's decision to withhold payment or to terminate this Agreement. 3. Term. The term of this Agreement begins upon the date of the mutual execution of this Agreement and shall continue through and until Contractor's completion of the responsibilities described in the attached Exhibits. Both of the parties to this Agreement understand and agree that the laws of the State of Colorado prohibit County from entering into Agreements which bind County for periods longer than one year. This Agreement may be extended upon mutual written agreement of the Parties. In its sole discretion, the County, by the Director of the Department of Public Works or his or her designee, may extend the time for the Contractor to complete the service or work, by not more than thirty (30) days. Such extension shall not increase the compensation to be paid to the Contractor nor change any other term herein. 4. Termination; Breach; Cure. County may terminate this Agreement for its own convenience upon thirty (30) days written notice to Contractor. Either Party may immediately terminate this Agreement upon material breach of the other party, however the breaching party shall have fifteen (15) days after receiving such notice to cure such breach. Upon termination, County shall take possession of all materials, equipment, tools and facilities owned by County which Contractor is using, by whatever method it deems expedient; and, Contractor shall deliver to County all drawings, drafts, or other documents it has completed or partially completed under this Agreement, together with all other items, materials and documents which have been paid for by County, and these items, materials and documents shall be the property of County. Copies of work product that is incomplete at the time of termination shall be marked "DRAFT -INCOMPLETE." If this Agreement is terminated by County, Contractor shall be compensated for, and such compensation shall be limited to, (1) the sum of the amounts contained in invoices which it has submitted and which have been approved by the County; (2) the reasonable value to County of the services which Contractor provided prior to the date of the termination notice, but which had not yet been approved for payment; and (3) the cost of any work which the County approves in writing which it determines is needed to accomplish an orderly termination of the work. County shall be entitled to the use of all material generated pursuant to this Agreement upon termination. Upon termination of this Agreement by County, Contractor shall have no claim of any kind whatsoever against the County by reason of such termination or by reason of any act incidental thereto, except for compensation for work satisfactorily performed and/or materials described herein properly delivered. 5. Extension or Modification. Any amendments or modifications to this agreement shall be in writing signed by both parties. No additional services or work performed by Contractor shall be the basis for additional compensation unless and until Contractor has obtained written authorization and acknowledgement by County for such additional services. Accordingly, no claim that the County has been unjustly enriched by any additional services, whether or not there is in fact any such unjust enrichment, shall be the basis of any increase in the compensation payable hereunder. In the event that written authorization and acknowledgment by the County for such additional services is not timely executed and issued in strict accordance with this Agreement, Contractor's rights with respect to such additional services shall be deemed waived and such failure shall result in non-payment for such additional services or work performed. In the event the County shall require changes in the scope, character, or complexity of the work to be performed, and said changes cause an increase or decrease in the time required or the costs to the Contractor for performance, an equitable adjustment in fees and completion time shall be negotiated between the parties and this Agreement shall be modified accordingly by Change Order. Any claims by the Contractor for adjustment hereunder must be made in writing prior to performance of any work covered in the anticipated Change Order. Any change in work made without such prior Change Order shall be deemed covered in the compensation and time provisions of this Agreement. 6. Compensation/Contract Amount. Upon Contractor's successful completion of the Work, and County's acceptance of the same, County agrees to pay an amount not to exceed $1,852,120.00, as set forth in Exhibits. No payment in excess of that set forth in the Exhibits will be made by County unless a Change Order authorizing such additional payment has been specifically approved by Weld County. If, at any time during the term or after termination or expiration of this Agreement, County reasonably determines that any payment made by County to Contractor was improper because the service for which payment was made did not perform as set forth in this Agreement, then upon written notice of such determination and request for reimbursement from County, Contractor shall forthwith return such payment(s) to County. Upon termination or expiration of this Agreement, unexpended funds advanced by County, if any, shall forthwith be returned to County. County will not withhold any taxes from monies paid to the Contractor hereunder and Contractor agrees to be solely responsible for the accurate reporting and payment of any taxes related to payments made pursuant to the terms of this Agreement. Unless expressly enumerated in the attached Exhibits, Contractor shall not be entitled to be paid for any other expenses (e.g. mileage). Notwithstanding anything to the contrary contained in this Agreement, County shall have no obligations under this Agreement after, nor shall any payments be made to Contractor in respect of any period after December 31 of any year, without an appropriation therefore by County in accordance with a budget adopted by the Board of County Commissioners in compliance with Article 25, Title 30 of the Colorado Revised Statutes, the Local Government Budget Law (C.R.S. 29-1-101 et. seq.) and the TABOR Amendment (Colorado Constitution, Article X, Sec. 20). 7. Independent Contractor. Contractor agrees that it is an independent contractor and that Contractor's officers, agents or employees will not become employees of County, nor entitled to any employee benefits (including unemployment insurance or workers' compensation benefits) from County as a result of the execution of this Agreement. Contractor shall be solely responsible for its acts and those of its agents and employees for all acts performed pursuant to this Agreement. 8. Subcontractors. Contractor acknowledges that County has entered into this Agreement in reliance upon the particular reputation and expertise of Contractor. Contractor shall not enter into any subcontractor agreements for the completion of this Work without County's prior written consent, which may be withheld in County's sole discretion. County shall have the right in its reasonable discretion to approve all personnel assigned to the Work during the performance of this Agreement and no personnel to whom County has an objection, in its reasonable discretion, shall be assigned to the Work. Contractor shall require each subcontractor, as approved by County and to the extent of the Work to be performed by the subcontractor, to be bound to Contractor by the terms of this Agreement, and(to assume toward Contractor all the obligations and responsibilities which Contractor, by this Agreement, assumes toward County. County shall have the right (but not the obligation) to enforce the provisions of this Agreement against any subcontractor hired by Contractor and Contractor shall cooperate in such process. The Contractor shall be responsible for the acts and omissions of its agents, employees and subcontractors. 9. Ownership. All work and information obtained by Contractor under this Agreement or individual work order shall become or remain (as applicable), the property of County. In addition, all reports, data, plans, drawings, records and computer files generated by Contractor in relation to this Agreement and all reports, test results and all other tangible materials obtained and/or produced in connection with the performance of this Agreement, whether or not such materials are in completed form, shall at all times be considered the property of the County. Contractor shall not make use of such material for purposes other than in connection with this Agreement without prior written approval of County. 10. Confidentiality. Confidential information of Contractor should be transmitted separately from non - confidential information, clearly denoting in red on the relevant document at the top the word, "CONFIDENTIAL". However, Contractor is advised that as a public entity, Weld County must comply with the provisions of the Colorado Open Records Act (CORA), C.R.S. 24-72-201, et seq., with regard to public records, and cannot guarantee the confidentiality of all documents. Contractor agrees to keep confidential all of County's confidential information. Contractor agrees not to sell, assign, distribute, or disclose any such confidential information to any other person or entity without seeking written permission from the County. Contractor agrees to advise its employees, agents, and consultants, of the confidential and proprietary nature of this confidential information and of the restrictions imposed by this Agreement. 11. Warranty. Contractor warrants that the Work performed under this Agreement will be performed in a manner consistent with the professional construction standards governing such services and the provisions of this Agreement. Contractor further represents and warrants that all Work shall be performed by qualified personnel in a professional manner, consistent with industry standards, and that all services will conform to applicable specifications. In addition to the foregoing warranties, Contractor is aware that all work performed on this Project pursuant to this Agreement is subject to a warranty period during which Contractor must correct any failures or deficiencies caused by Contractor's workmanship or performance. This warranty shall commence on the date of County's final inspection and acceptance of the Project, and shall continue for one year, or such greater time as specified in the attached Exhibits. 12. Acceptance of Services Not a Waiver. Upon completion of the Work, Contractor shall submit to County originals of all test results, reports, etc., generated during completion of this work. Acceptance by County of reports, incidental material(s), and structures furnished under this Agreement shall not in any way relieve Contractor of responsibility for the quality and accuracy of the construction of the project. In no event shall any action by County hereunder constitute or be construed to be a waiver by County of any breach of this Agreement or default which may then exist on the part of Contractor, and County's action or inaction when any such breach or default shall exist shall not impair or prejudice any right or remedy available to County with respect to such breach or default. No assent, expressed or implied, to any breach of any one or more covenants, provisions or conditions of the Agreement shall be deemed or taken to be a waiver of any other breach. Acceptance by the County of, or payment for, the Work completed under this Agreement shall not be construed as a waiver of any of the County's rights under this Agreement or under the law generally. 13. Insurance. Contractor must secure, before the commencement of the Work, the following insurance covering all operations, goods, and services provided pursuant to this Agreement, and shall keep the required insurance coverage in force at all times during the term of the Agreement, or any extension thereof, and during any warranty period. For all coverages, Contractor's insurer shall waive subrogation rights against County. a. Types of Insurance: Workers' Compensation/Employer's Liability Insurance as required by state statute, covering all the Contractor's employees acting within the course and scope of their employment. The policy shall contain a waiver of subrogation against the County. This requirement shall not apply when a Contractor or subcontractor is exempt under Colorado Workers' Compensation Act., AND when such Contractor or subcontractor executes the appropriate sole proprietor waiver form. Commercial General Liability Insurance including public liability and property damage covering all operations required by the Work. Such policy shall include minimum limits as follows: $1,000,000 each occurrence; $2,000,000 general aggregate; $2,000,000 products and completed operations aggregate; $1,000,000 Personal Advertising injury; $50,000 any one fire; and $5,000 Medical payment per person. Medical operations coverage shall be provided for a minimum period of one (1) year following final acceptance. Automobile Liability: Contractor shall maintain limits of $1,000,000 for bodily injury per person; $1,000,000 for bodily injury for each accident; and $1,000,000 for property damage applicable to all vehicles operating both on County property and elsewhere, for vehicles owned, hired, and non -owned vehicles used in the performance of this Contract. Professional Liability (Errors and Omissions Liability): Contractor shall maintain limits of $1,000,000 Per Loss and $2,000,000 Annual Aggregate for both the Contractor and subcontractors where: (1) the Work includes Construction Surveying and/or Survey Monumentation and/or (2) plans, specifications, and submittals are required to be signed and sealed by the Contractor's or subcontractor's Professional Engineer including but not limited to (a) Shop drawings and working drawings as defined in subsection 105.25 of the Specifications, (b) Mix designs, (c) Contractor performed design work as required by the plans and Specifications, (d) Change Orders, or (e) Approved Value Engineering Proposals. The policy shall cover professional misconduct or lack of ordinary skill for those positions defined in the Scope of Services of this contract. Contractor shall maintain limits for all claims covering wrongful acts, errors and/or omissions, including design errors, if applicable, for damage sustained by reason of or in the course of operations under this Contract resulting from professional services. In the event that the professional liability insurance required by this Contract is written on a claims -made basis, Contractor warrants that any retroactive date under the policy shall precede the effective date of this Contract; and that either continuous coverage will be maintained or an extended discovery period will be exercised for a period of two (2) years beginning at the time work under this Contract is completed. Umbrella or Excess Liability Insurance: Contractor shall maintain limits of $1,000,000 and shall become primary in the event the primary liability policy limits are impaired or exhausted. The policy shall be written on an Occurrence form and shall be following form of the primary. Pollution Liability. Weld County requires this coverage whenever work at issue under this Contract involves potential pollution risk to the environment or losses caused by pollution conditions that may arise from the operations of the Contractor described in the Exhibits. The policy shall cover the Contractor's completed operations. Coverage shall apply to sudden and gradual pollution conditions resulting from the escape of release of smoke, vapors, fumes, acids, alkalis, toxic chemicals, liquids, or gases, natural gas, waste materials, or other irritants, contaminants, or pollutants (including asbestos). If the coverage is written on a claims -made basis, the Contractor warrants that any retroactive date applicable to coverage under the policy precedes the effective date of this Contract; and that continuous coverage will be maintained or an extended discovery period will be exercised for a period of three (3) years beginning from the time that work under this contract is completed. Minimum Limits: Per Loss $ 1,000,000 Aggregate $ 1,000,000 Builders' Risk Insurance or Installation Floater — Completed Value Basis: Unless otherwise provided in the attached Exhibits, the Contractor shall purchase and maintain, in a company or companies lawfully authorized to do business in Colorado, Builders' Risk Insurance in the amount of the initial contract amount as described in the attached Exhibits, plus the value of subsequent modifications, change orders, and cost of material supplied or installed by others, comprising total value of the entire Project at the site on a replacement cost basis without optional deductibles. 1) The policy must provide coverage from the time any covered property becomes the responsibility of the Contractor, and continue without interruption during construction, renovation, or installation, including any time during which the covered property is being transported to the construction installation site, or awaiting installation, whether on or off site. 2) Such Builders' Risk Insurance shall be maintained, unless otherwise provided in the Contract Documents or otherwise agreed in writing by all persons and entities who are beneficiaries of such insurance, until final payment has been made or until no person or entity other than the County 's has insurable interest in the property to be covered, whichever is later. 3) The Builders' Risk insurance shall include interests of the County and if applicable, affiliated or associate entities, the General Contractor, subcontractors and sub -tier contractors in the Project. 4) The Builders' Risk Coverage shall be written on a Special Covered Cause of Loss form and shall include theft, vandalism, malicious mischief, collapse, false -work, temporary buildings, transit, debris removal including demolition, increased cost of construction, architect's fees and expenses, flood (including water damage), earthquake, and if applicable, all below and above ground structures, piping, foundations including underground water and sewer mains, piling including the ground on which the structure rests and excavation, backfilling, filling, and grading. Flood damage coverage is not required for work within the floodway or 100 - year floodplain. Regardless, Contractor shall bear all risk associated with any and all loss resulting from flood events during construction. 5) The Builders' Risk shall include a Beneficial Occupancy Clause. The policy shall specifically permit occupancy of the building during construction. County Contractor shall take reasonable steps to obtain consent of the insurance company and delete any provisions with regard to restrictions within any Occupancy Clauses within the Builder's Risk Policy. The Builder's Risk Policy shall remain in force until acceptance of the project by the County. 6) Equipment Breakdown Coverage (a.k.a. Boiler & Machinery) shall be included as required by the Contract Documents or by law, which shall specifically cover insured equipment during installation and testing (including cold and hot testing). 7) The deductible shall not exceed $25,000 and shall be the responsibility of the Contractor for all covered perils within the required policy. For all general liability, excess/umbrella liability, and professional liability policies, if the policy is a claims -made policy, the retroactive date must be on or before the contract date or the first date when any goods or services were provided to County, whichever is earlier. b. Proof of Insurance: Contractor shall provide to County a certificate of insurance, a policy, or other proof of insurance as determined in County's sole discretion. Contractor shall provide a certificate of insurance naming Weld County, Colorado, its elected officials, and its employees as an additional named insured. c. Subcontractor Insurance: Contractor hereby warrants that all subcontractors providing services under this Agreement have or will have the above described insurance prior to the commencement of the Work, or otherwise that they are covered by the Contractor's policies to the minimum limits as required herein. Contractor agrees to provide proof of insurance for all such subcontractors upon request by the County. d. No limitation of Liability: The insurance coverages specified in this Agreement are the minimum requirements, and these requirements do not decrease or limit the liability of Contractor. The County in no way warrants that the minimum limits contained herein are sufficient to protect the Contractor from liabilities that might arise out of the performance of the Work under by the Contractor, its agents, representatives, employees, or subcontractors. The Contractor shall assess its own risks and if it deems appropriate and/or prudent, maintain higher limits and/or broader coverages. The Contractor is not relieved of any liability or other obligations assumed or pursuant to the Contract by reason of its failure to obtain or maintain insurance in sufficient amounts, duration, or types. The Contractor shall maintain, at its own expense, any additional kinds or amounts of insurance that it may deem necessary to cover its obligations and liabilities under this Agreement. e. Certification of Compliance with Insurance Requirements. The Contractor stipulates that it has met the insurance requirements identified herein. The Contractor shall be responsible for the professional quality, technical accuracy, and quantity of all services provided, the timely delivery of said services, and the coordination of all services rendered by the Contractor and shall, without additional compensation, promptly remedy and correct any errors, omissions, or other deficiencies. 14. Indemnity. The Contractor shall defend, indemnify and hold harmless County, its officers, agents, and employees, from and against any and all injury, loss, damage, liability, suits, actions, claims, or willful acts or omissions of any type or character arising out of the Work done in fulfillment of the terms of this Agreement or on account of any act, claim or amount arising or recovered under workers' compensation law or arising out of the failure of the Contractor to conform to any statutes, ordinances, regulation, judicial decision, or other law or court decree. The Contractor shall be fully responsible and liable for any and all injuries or damage received or sustained by any person, persons, or property on account of its performance under this Agreement or its failure to comply with the provisions of the Agreement. It is agreed that the Contractor will be responsible for primary loss investigation, defense and judgment costs where this contract of indemnity applies. In consideration of the award of this contract, the Contractor agrees to waive all rights of subrogation against the County its associated and/or affiliated entities, successors, or assigns, its elected officials, trustees, employees, agents, and volunteers for losses arising from the work performed by the Contractor for the County. A failure to comply with this provision shall result in County's right to immediately terminate this Agreement. 15. Non -Assignment. Contractor may not assign or transfer this Agreement or any interest therein or claim thereunder, without the prior written approval of County. Any attempts by Contractor to assign or transfer its rights hereunder without such prior approval by County shall, at the option of County, automatically terminate this Agreement and all rights of Contractor hereunder. Such consent may be granted or denied at the sole and absolute discretion of County. 16. Examination of Records. To the extent required by law, the Contractor agrees that any duly authorized representative of County, including the County Auditor, shall have access to and the right to examine and audit any books, documents, papers and records of Contractor, involving all matters and/or transactions related to this Agreement. The Contractor agrees to maintain these documents for three years from the date of the last payment received. 17. Interruptions. Neither party to this Agreement shall be liable to the other for delays in delivery or failure to deliver or otherwise to perform any obligation under this Agreement, where such failure is due to any cause beyond its reasonable control, including but not limited to Acts of God, fires, strikes, war, flood, earthquakes or Governmental actions. 18. Notices. County may designate, prior to commencement of work, its project representative ("County Representative") who shall make, within the scope of his or her authority, all necessary and proper decisions with reference to the project. All requests for contract interpretations, change orders, and other clarification or instruction shall be directed to County Representative. All notices or other communications made by one party to the other concerning the terms and conditions of this contract shall be deemed delivered under the following circumstances: a) personal service by a reputable courier service requiring signature for receipt; or b) five (5) days following delivery to the United States Postal Service, postage prepaid addressed to a party at the address set forth in this contract; or c) electronic transmission via email at the address set forth below, where a receipt or acknowledgment is required by the sending party; or Either party may change its notice address(es) by written notice to the other. Notice shall be sent to: C'.nntractnr: Name: Matt Lamar Position: President, L4 Construction, DBA L4 Environmental Address: 2350 17th Ave, Ste 204 Longmont, CO 80503 E-mail: mlamar@14construction.com Phone: 970-628-0047 County: Name: Lyndsay Holbrook Position: MS4 Administrator Address: P.O. Box 758, Greeley, CO 80632 E-mail: lolbrook@weldgov.com Phone: 970-400-3788 19. Compliance with Law. Contractor shall strictly comply with all applicable federal and State laws, rules and regulations in effect or hereafter established, including without limitation, laws applicable to discrimination and unfair employment practices. 20. Non -Exclusive Agreement. This Agreement is nonexclusive and County may engage or use other Contractors or persons to perform services of the same or similar nature. 21. Entire Agreement/Modifications. This Agreement including the Exhibits attached hereto and incorporated herein, contains the entire agreement between the parties with respect to the subject matter contained in this Agreement. This instrument supersedes all prior negotiations, representations, and understandings or agreements with respect to the subject matter contained in this Agreement. This Agreement may be changed or supplemented only by a written instrument signed by both parties. 22. Fund Availability. Financial obligations of the County payable after the current fiscal year are contingent upon funds for that purpose being appropriated, budgeted, and otherwise made available. Execution of this Agreement by County does not create an obligation on the part of County to expend funds not otherwise appropriated in each succeeding year. 23. Employee Financial Interest/Conflict of Interest — C.R.S. §§24-18-201 et seq. and §24-50-507. The signatories to this Agreement agree that to their knowledge, no employee of Weld County has any personal or beneficial interest whatsoever in the service or property which is the subject matter of this Agreement. 24. Survival of Termination. The obligations of the parties under this Agreement that by their nature would continue beyond expiration or termination of this Agreement (including without limitation, the warranties, indemnification obligations, confidentiality, and record keeping) shall survive any such expiration or termination. 25. Severability. If any term or condition of this Agreement shall be held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, this Agreement shall be construed and enforced without such provision, to the extent that this Agreement is then capable of execution within the original intent of the parties. 26. Governmental Immunity. No term or condition of this Agreement shall be construed or interpreted as a waiver, express or implied, of any of the immunities, rights, benefits, protections, or other provisions, of the Colorado Governmental Immunity Act §§24-10-101 et seq., as applicable now or hereafter amended. 27. No Third -Party Beneficiary. It is expressly understood and agreed that the enforcement of the terms and conditions of this Agreement, and all rights of action relating to such enforcement, shall be strictly reserved to the undersigned parties and nothing in this Agreement shall give or allow any claim or right of action whatsoever by any other person not included in this Agreement. It is the express intention of the undersigned parties that any entity other than the undersigned parties receiving services or benefits under this Agreement shall be an incidental beneficiary only. 28. Board of County Commissioners of Weld County Approval. This Agreement shall not be valid until it has been approved by the Board of County Commissioners of Weld County, Colorado or its designee. 29. Choice of Law/Jurisdiction. Colorado law, and rules and regulations established pursuant thereto, shall be applied in the interpretation, execution, and enforcement of this Agreement. Any provision included or incorporated herein by reference which conflicts with said laws, rules and/or regulations shall be null and void. In the event of a legal dispute between the parties, Contractor agrees that the Weld County District Court shall have exclusive jurisdiction to resolve said dispute. 30. Public Contracts for Services C.R.S. §8-17.5-101. Contractor certifies, warrants, and agrees that it does not knowingly employ or contract with an illegal alien who will perform work under this Agreement. Contractor will confirm the employment eligibility of all employees who are newly hired for employment in the United States to perform work under this Agreement, through participation in the E -Verify program of the State of Colorado program established pursuant to C.R.S. §8-17.5-102(5)(c). Contractor shall not knowingly employ or contract with an illegal alien to perform work under this Agreement or enter into a contract with a subcontractor that fails to certify with Contractor that the subcontractor shall not knowingly employ or contract with an illegal alien to perform work under this Agreement. Contractor shall not use E -Verify Program or State of Colorado program procedures to undertake pre -employment screening or job applicants while this Agreement is being performed. If Contractor obtains actual knowledge that a subcontractor performing work under this Agreement knowingly employs or contracts with an illegal alien Contractor shall notify the subcontractor and County within three (3) days that Contractor has actual knowledge that a subcontractor is employing or contracting with an illegal alien and shall terminate the subcontract if a subcontractor does not stop employing or contracting with the illegal alien within three (3) days of receiving notice. Contractor shall not terminate the contract if within three days the subcontractor provides information to establish that the subcontractor has not knowingly employed or contracted with an illegal alien. Contractor shall comply with reasonable requests made in the course of an investigation, undertaken pursuant to C.R.S. §8-17.5-102(5), by the Colorado Department of Labor and Employment. If Contractor participates in the State of Colorado program, Contractor shall, within twenty days after hiring a new employee to perform work under the contract, affirm that Contractor has examined the legal work status of such employee, retained file copies of the documents, and not altered or falsified the identification documents for such employees. Contractor shall deliver to County, a written notarized affirmation that it has examined the legal work status of such employee and shall comply with all the other requirements of the State of Colorado program. If Contractor fails to comply with any requirement of this provision or of C.R.S. §8-17.5-101 et seq., County, may terminate this Agreement for breach, and if so terminated, Contractor shall be liable for actual and consequential damages. Except where exempted by federal law and except as provided in C.R.S. § 24-76.5-103(3), if Contractor receives federal or state funds under the contract, Contractor must confirm that any individual natural person eighteen (18) years of age or older is lawfully present in the United States pursuant to C.R.S. § 24-76.5-103(4), if such individual applies for public benefits provided under the contract. If Contractor operates as a sole proprietor, it hereby swears or affirms under penalty of perjury that it: (a) is a citizen of the United States or is otherwise lawfully present in the United States pursuant to federal law, (b) shall produce one of the forms of identification required by C.R.S. § 24-76.5-101, et seq., and (c) shall produce one of the forms of identification required by C.R.S. § 24- 76.5-103 prior to the effective date of the contract. 31. Public Contracts for Services C.R.S. §8-17-101. For public contracts in excess of $500,000 annually, or for public contracts for road or bridge construction in excess of $50,000, Contractor certifies, warrants, and agrees that Colorado labor shall be employed to perform at least eighty percent of the work under this Contract. "Colorado labor" means any person who is a resident of the state of Colorado at the time of the public works project, who can provide a valid Colorado driver's license, a valid Colorado state -issued photo identification, or documentation that he or she has resided in Colorado for the last thirty days. The County, in its sole discretion, may waive the eighty percent requirement if there is reasonable evidence to demonstrate insufficient Colorado labor is available to perform the work, and this requirement would create an undue burden that would substantially prevent the work from proceeding to completion. [This section shall not apply to any project which is funded in whole or in part with federal funds, or where otherwise contrary to federal law. In accordance with C.R.S. §8- 17-107 and 2 C.F.R. §200.319(c), this section shall not apply if the Work is funded wholly or in part with federal funds.] 32. Attorney's Fees/Legal Costs. In the event of a dispute between County and Contractor, concerning this Agreement, the parties agree that each party shall be responsible for the payment of attorney fees and/or legal costs incurred by or on its own behalf. 33. Binding Arbitration Prohibited: Weld County does not agree to binding arbitration by any extra judicial body or person. Any provision to the contrary in this Agreement or incorporated herein by reference shall be null and void. Acknowledgment. County and Contractor acknowledge that each has read this Agreement, understands it and agrees to be bound by its terms. Both parties further agree that this Agreement, with the attached Exhibits A and B, is the complete and exclusive statement of agreement between the parties and supersedes all proposals or prior agreements, oral or written, and any other communications between the parties relating to the subject matter of this Agreement. L4 ConstruktionJLLC dba L4 Environmental 01Ih6i1oz Date of Signature Matt Lamar Title: President WELD COUNTY: ATTEST: 4&( V �/��/ BOARD OF COUNTY COMMISSIONERS Weld �,.au Y Clerk to the Boar/ ,,� m WEED COUNTY, COLORADO I/, c2/7c1—&3g? WELD COUNTY BID REQUEST NO. B2100076 WELD COUNTY DEPARTMENT OF PUBLIC WORKS CONTRACT BID DOCUMENTS AND SPECIFICATIONS FOR PUBLIC WORKS STORMWATER IMPROVEMENTS November 3, 2021 Weld County Public Works Division of Engineering P.O. Box 758 • 1111 H Street Greeley, Colorado 80632 970-304-6496 TABLE OF CONTENTS The following forms and provisions take precedence over plan drawings and supplement the 2021 edition of the Colorado Department of Transportation "Standard Specifications for Road and Bridge Construction" (Standard Specifications) which is to be used to administer the construction of this project. BIDDING REQUIREMENTS: *All Bidders must submit these forms with their Bid Requestfor Bids......................................................................................................................................................3-13 BidProposal................................................................................................................................................................14 *Bid Tabulation.......................................................................................................................................................15-16 *Bid Bond...............................................................................................................................................................17-18 *Receipt of Addenda................................................................................................................................................... 20 *IRS Form W-9............................................................................................................................................................21 *Anti Collusion Affidavit (Weld Form #606)................................................................................................................22 *Title 49, CFR, Part 29 Debarment and Suspension Certification..............................................................................23 *Contractor's Performance Capability Statement (Weld Form #605)......................................................................... 24 *Assignment of Antitrust Claims (Weld Form #621)...................................................................................................25 WELD COUNTY CONTRACT FORMS: **Low Bidder must submit these forms prior to Contract Award **Notice of Award........................................................................................................................................................ 26 **Agreement...........................................................................................................................................................27-35 **Performance Bond.............................................................................................................................................. 36-37 **Labor and Materials Payment Bond....................................................................................................................38-39 Noticeto Proceed....................................................................................................................................................... 40 ChangeOrder.............................................................................................................................................................41 Certificate of Substantial Completion..........................................................................................................................42 LienWaiver (General Contractor)............................................................................................................................... 43 LienWaiver (Subcontractors).....................................................................................................................................44 Noticeof Acceptance..................................................................................................................................................45 WELD COUNTY PROVISIONS: ProjectSpecial Provisions Index................................................................................................................................46 ProjectSpecial Provisions..................................................................................................................................47-138 CDOT STANDARD SPECIAL PROVISIONS: Standard Special Provisions Index...........................................................................................................................139 StandardSpecial Provisions.............................................................................................................................140-156 ADDITIONAL DOCUMENTS: Construction Plans..........................................................................................................................Separate Document Stormwater Management Plan....................................................................................................... Separate Document Bid Tabulation Spreadsheet............................................................................................................Separate Document 21 Page REQUEST FOR BIDS WELD COUNTY, COLORADO 1150O STREET GREELEY, CO 80631 DATE: NOVEMBER 3, 2021 BID NUMBER: B2100076 DESCRIPTION: PUBLIC WORKS STORMWATER IMPROVEMENTS MANDATORY PRE -BID CONFERENCE: NOVEMBER 10, 2021, 9:00 A.M. FINAL DATE FOR QUESTIONS: NOVEMBER 24, 2021, 7;00 A.M. FINAL DATE FOR ADDENDUMS: NOVEMBER 30, 2021, 5:00 P.M. BID DEADLINE: DECEMBER 8, 2021, 10:00 A.M. BID OPENING: DECEMBER 8, 2021, 10:30 A.M. ANTICIPATED BID PRESENTATION TO BOCC: DECEMBER 13, 2021 ANTICIPATED BID AWARD BY BOCC: DECEMBER 27, 2021 ANTICIPATED NOTICE TO PROCEED: JANUARY 3, 2022 COMPLETION DATE: MAY 31, 2022 1. NOTICE TO BIDDERS: The Board of County Commissioners of Weld County, Colorado, by and through its Director of General Services (collectively referred to herein as, "Weld County"), wishes to purchase the following: PUBLIC WORKS STORMWATER IMPROVEMENTS The project in general consists of the construction of seven water quality features, including five water quality ponds, one water quality swale, and one evaporation pond. Additionally, one oil/sand separator will be installed at the fuel site. The project also includes all associated drainage features including concrete pans, concrete curb and gutter, inlets, a manhole, underground culverts, outlet structures, concrete spillways, riprap spillways and riprap rundowns. It also involves the implementation of a Stormwater Management Plan and installation of temporary erosion control measures to prevent offsite discharge of pollutants during construction. A mandatory pre -bid conference will be held on Wednesday, November 10th at 9:00 a.m. via Microsoft Teams/phone call. Bidders must participate and record their presence at the pre -bid conference to be allowed to submit bids. The meeting information is as follows: Join on your computer or mobile app Click here to loin the meeting Or call in (audio only) Phone Number: 1 720-439-5261 Conference ID: 240 738 215# Bids will be received until December 8, 2021 at 10:00 a.m. (Weld County Purchasing Time Clock). Submitted bids will be read over a Microsoft Teams conference call on December 8, 2021 at 10:30 a.m. The meeting information is as follows: Phone Number: (720) 439-5261 Conference ID: 720420648 PAGES 1 -13 OF THIS REQUEST FOR BIDS CONTAIN GENERAL INFORMATION FOR THE REQUEST NUMBER REFERRED TO ABOVE. NOT ALL OF THE INFORMATION CONTAINED IN PAGES 1 -13 MAY BE APPLICABLE FOR EVERY PURCHASE. BID SPECIFICS FOLLOW PAGE 14. 2. INVITATION TO BID: Weld County requests bids for the purchase of the above -listed merchandise, equipment, and/or services. 3IPage Bids shall include any and all charges for freight, delivery, containers, packaging, less all taxes and discounts, and shall, in every way, be the total net price which the bidder will expect the Weld County to pay if awarded the bid. Merchandise and/or equipment shall be delivered to the location(s) specified herein. You can find information concerning this request on the BidNet Direct website at https://www.bidnetdirect.com. Weld County Government is a member of BidNet Direct which is an online notification system being utilized by multiple non-profit and governmental entities. Participating entities post their bids, quotes, proposals, addendums and awards on this one centralized system. Emailed bids are required. Bids may be emailed to: bids weldgov.com; however, if your bid exceeds 25 MB, please upload your bid to https://www.bidnetdirect.com. The maximum file size to upload to BidNet Direct is 500 MB. PDF format is required. Emailed bids must include the following statement on the email: "I hereby waive my right to a sealed bid". An email confirmation will be sent when we receive your bid. Please call Purchasing at 970-400-4223 or 4222 with any questions. 3. INSTRUCTIONS TO BIDDERS: INTRODUCTORY INFORMATION Bids shall be typewritten or written in ink on forms prepared by the Weld County Purchasing Department. Each bid must give the full business address of bidder and be signed by him with his usual signature. Bids by partnerships must furnish the full names of all partners and must be signed with the partnership name by one of the members of the partnership or by an authorized representative, followed by the signature and title of the person signing. Bids by corporations must be signed with the legal name of the corporation, followed by the name of the state of the incorporation and by the signature and title of the president, secretary, or other person authorized to bind it in the matter. The name of each person signing shall also be typed or printed below the signature. A bid by a person who affixes to his signature the word "president," "secretary," "agent," or other title without disclosing his principal, may be held to the bid of the individual signing. When requested by the Weld County Director of General Services, satisfactory evidence of the authority of the officer signing on behalf of a corporation shall be furnished. All corrections or erasures shall be initialed by the person signing the bid. All bidders shall agree to comply with all of the conditions, requirements, specifications, and/or instructions of this bid as stated or implied herein. All designations and prices shall be fully and clearly set forth. All blank spaces in the bid forms shall be suitably filled in. Bids may be withdrawn upon written request to and approval of the Weld County Director of General Services; said request being received from the withdrawing bidder prior to the time fixed for award. Negligence on the part of a bidder in preparing the bid confers no right for the withdrawal of the bid after it has been awarded. Late or unsigned bids shall not be accepted or considered. It is the responsibility of the bidder to ensure that the bid arrives in the Weld County Purchasing Department on or prior to the time indicated in Section 1., entitled, "Notice to Bidders." Bids received prior to the time of opening will be kept unopened in a secure place. No responsibility will attach to the Weld County Director of General Services for the premature opening of a bid not properly addressed and identified. In accordance with Section 14-9(3) of the Weld County Home Rule Charter, Weld County will give preference to resident Weld County bidders in all cases where said bids are competitive in price and quality. Weld County reserves the right to reject any and all bids, to waive any informality in the bids, to award the bid to multiple vendors, and to accept the bid that, in the opinion of the Board of County Commissioners, is to the best interests of Weld County. The bid(s) may be awarded to more than one vendor. Terms Defined: Terms used in these instructions to Bidders and elsewhere throughout the Contract Documents are defined in the General Provisions, CDOT, Standard Specification for Road and Bridge Construction, Section 101. The term "Contract Documents" shall mean the documents included but not limited to: • Request for Bid • Contractor's Response to the Bid • All Addendums 4 Page • All Appendices • All Exhibits • Specifications including Weld County Special Provisions, CDOT Project Special Provisions, CDOT Standard Special Provisions, CDOT Standard Provisions, CDOT Field Materials Manual, CDOT Construction Manual, CDOT Survey Manual, and other referenced sources. • Plans including detailed plans and standard plans • Except as otherwise specified in the Contract Documents, or otherwise directed by the County, references to standards, codes, or criteria shall mean the latest version in effect on the Proposal Due Date. Reference to "days" or "Days" contained in the Contract Documents shall mean "Calendar Days" unless otherwise specified. Qualification of Bidders: Qualification statements, attached with this document, are required to be completed by Bidders. If requested by Weld County, a Statement of Qualifications will be completed for the Subcontractors listed by the Contractor within 72 hours of the request. Failure to submit qualifications may be cause for rejection of Bids. The Owner shall consider the following criteria in evaluating the Bidder's qualifications following the opening of Bids: • Experience and performance records on similar work. • Ability to complete the Work within the Contract Time. Familiarization with the Work: Before submitting his Bid, each prospective Bidder shall familiarize himself with the Work, the site where the Work is to be performed, local labor conditions and all local, state and federal laws, ordinances, rules, regulations and other factors affecting performance of the Work. He shall carefully correlate his observations with requirements of the Contract Documents and Drawings and otherwise satisfy himself of the expense and difficulties attending performance of the Work. The submission of a Bid will constitute an incontrovertible representation by the Bidder that he has complied with every requirement of this paragraph. Interpretation of Contract Documents to Prospective Bidders: Any prospective Bidder who discovers ambiguities or is in doubt as to the true meaning of any part of the Contract Documents or Drawings shall make a request to the Engineer for an interpretation thereof. Interpretations will be made only by Addenda, duly issued, and copies of each Addendum will be mailed or delivered to each Contract Document holder of record. Unless approved by the Director of General Services, no interpretation Addenda will be issued within the last seven (7) days before the date set for opening of Bids. The Bidder shall be solely responsible for any interpretation of the Contract Documents or Drawings other than by duly issued Addenda. In the Contract Documents, where appropriate: • The singular includes the plural and vice versa; • References to statutes or regulations include all statutory or regulatory provisions consolidating, amending, or replacing the statute or regulation referred to; • Words such as "herein," "hereof," and "hereunder" refer to the entire document in which they are contained and not to any particular provision or section; • Words not otherwise defined that have well-known technical or construction industry meanings are used in accordance with such recognized meanings; • References to Persons include their respective permitted successors and assigns and, in the case of Governmental Persons, Persons succeeding to their respective functions and capacities; and • Words of any gender used herein include each other gender where appropriate. Preparation of the Bid: Bidders are required to use the Proposal Forms which are included in this package and on the basis indicated in the Bid Forms. The Bid Proposal must be filled out completely, in detail, and signed by the Bidder. Bids by partnerships must be executed in the partnership name and signed by a partner. His title must appear under his signature and the official address of the partnership must be shown below the signature. Bids by corporations must be executed in the corporate name by the president or a vice president (or other corporate officer accompanied by evidence of authority to sign) and the corporate seal shall be affixed and attested by the secretary or an assistant secretary. The corporate address and state of incorporation shall be shown below the signature. Names of all persons signing must 51 Page be printed below their signatures. A power of attorney must accompany the signature of anyone not otherwise authorized to bind the Bidder. Modification or Withdrawal of Bid: Bids may be modified or withdrawn by an appropriate document duly executed in the manner that a Bid must be executed and delivered to the place where Bids are to be submitted at any time prior to the final time set for receiving Bids. Bidders may modify or withdraw Bids by electronic communication at any time prior to the time set for receiving Bids provided the instruction is positively identified. Any electronic modification should not reveal the amended Bid price, but should provide only the addition, subtraction or modification. A duly executed document confirming the electronic modification shall be submitted within three days after Bids are opened. The Director of General Services may at his sole discretion, release any Bid at any time. 4. AWARD AND EXECUTION OF CONTRACT Basis of Award: Only firm Bids will be considered. The award of the Contract, if it is awarded, will be to the lowest responsible bidder whose Bid compares favorably upon evaluation with other Bids. Weld County intends to award the Contract to the lowest responsible Bidder within the limits of funds available and to best serve its interests. The County reserves the right to waive informalities and/or irregularities and to reject any or all bids. Evaluation of Bids: The evaluation of Bids will include consideration of Subcontractors and suppliers. All Bidders shall submit a list of all Subcontractors he expects to use in the Work with the Bid. The experience statement with pertinent information on similar Projects shall be furnished with the name of each Subcontractor proposed to perform work on the project. The use of Subcontractors listed by the Bidder and accepted by County prior to the Notice of Award will be required in the performance of the Work. All Bidders shall submit with their Bid a list of the suppliers as indicated in the Bid Forms. Contract Execution: The successful Bidder shall be required to execute the Contract and to furnish the Performance Bond, Labor & Materials Payment Bond and Certificate of Insurance within ten (10) calendar days of receipt of the Notice of Award. The Certificate of Insurance shall name Weld County, Colorado, its elected officials, and its employees as additional insured. Failure to execute the contract and furnish the required paperwork within the time frame mentioned above shall be just cause for the annulment of the Award and, in the event of such annulment, the Award may then be made to another Bidder, or the County may reject all Bids or call for other Bids. The County, within ten (10) days of receipt of acceptable Performance Bid, Labor & Materials Payment Bond, and signed Contract from the successful Bidder will issue the Notice to Proceed. In submitting the bid, the bidder agrees that the signed bid submitted, all of the documents of the Request for Proposal contained herein (including, but not limited to, product specifications and scope of services), the successful bidder's response, and the formal acceptance of the bid by Weld County, together constitutes a contract, with the contract date being the date of formal acceptance of the bid by Weld County. The County may require a separate contract, which if required, has been made a part of this RFB. 5. PERFORMANCE, LABOR, MATERIAL AND PAYMENT BOND The successful Bidder shall be required to execute the Performance Bond and Labor & Materials Payment Bond in the amount of 100% of the Contract plus the value of the force account items, covering the faithful performance of the Contract and the payment of all obligations arising there -under. The Bonds shall be executed on the forms included with the Contract Documents by a surety company authorized to do business in the State of Colorado and acceptable as surety to Weld County. The Bidder shall deliver the Bonds to the Owner not later than the date of execution of the Contract. 6. INDIRECT COSTS Governmental Fees: The cost of all construction licenses, building and other permits, and governmental inspections required by public authorities for performing the Work, which are applicable at the time Bids are opened and which are not specified to be obtained by the County, shall be included in the Bid price. Royalties: The cost of all royalties and license fees on equipment and materials to be furnished and incorporated in the Work shall be included in the Bid price. 6IPage Utilities: Unless otherwise specified, the Bidder shall include in his Bid the cost of all electrical, water, sanitary, gas, telephone, and similar facilities and services required by him in performing the Work. Cash Allowances: The Bidder shall include in his Bid such sums as he deems proper for overhead costs and profits on account of cash allowances named in the Bid Documents. 7. SITE CONDITIONS Familiarization with the Site: The prospective Bidder shall by careful examination, satisfy himself of the following: • Nature and location of the site where the Work is to be performed. • Character, quality, and quantity of surface and subsurface materials, water, structures and utilities to be encountered. • Character of construction equipment and facilities needed for performance of the Work. • General local conditions. • Availability of lands as set forth in the General Conditions. Access to the Site: The Bidder shall carefully review the Drawings and the Project Special Conditions for provisions concerning access to the site during performance of the Work. The Bidder shall carefully review the locations of the site where the work is to be performed. The Bidder shall make all arrangements, as deemed necessary, for access to property outside of County Right of Way, prior to beginning the work. SUCCESSFUL BIDDER HIRING PRACTICES - ILLEGAL ALIENS Successful bidder certifies, warrants, and agrees that it does not knowingly employ or contract with an illegal alien who will perform work under this contract. Successful bidder will confirm the employment eligibility of all employees who are newly hired for employment in the United States to perform work under this Agreement, through participation in the E -Verify program of the State of Colorado program established pursuant to C.R.S. §8-17.5-102(5)(c). Successful bidder shall not knowingly employ or contract with an illegal alien to perform work under this Agreement or enter into a contract with a subcontractor that fails to certify with Successful bidder that the subcontractor shall not knowingly employ or contract with an illegal alien to perform work under this Agreement. Successful bidder shall not use E -Verify Program or State of Colorado program procedures to undertake pre -employment screening or job applicants while this Agreement is being performed. If Successful bidder obtains actual knowledge that a subcontractor performing work under the public contract for services knowingly employs or contracts with an illegal alien Successful bidder shall notify the subcontractor and County within three (3) days that Successful bidder has actual knowledge that a subcontractor is employing or contracting with an illegal alien and shall terminate the subcontract if a subcontractor does not stop employing or contracting with the illegal alien within three (3) days of receiving notice. Successful bidder shall not terminate the contract if within three days the subcontractor provides information to establish that the subcontractor has not knowingly employed or contracted with an illegal alien. Successful bidder shall comply with reasonable requests made in the course of an investigation, undertaken pursuant to C.R.S. §8-17.5-102(5), by the Colorado Department of Labor and Employment. If Successful bidder participates in the State of Colorado program, Successful bidder shall, within twenty days after hiring a new employee to perform work under the contract, affirm that Successful bidder has examined the legal work status of such employee, retained file copies of the documents, and not altered or falsified the identification documents for such employees. Successful bidder shall deliver to County, a written notarized affirmation that it has examined the legal work status of such employee and shall comply with all of the other requirements of the State of Colorado program. If Successful bidder fails to comply with any requirement of this provision or of C.R.S. §8-17.5-101 et seq., County, may terminate this Agreement for breach, and if so terminated, Successful bidder shall be liable for actual and consequential damages. Except where exempted by federal law and except as provided in C.R.S. § 24-76.5-103(3), if Successful bidder receives federal or state funds under the contract, Successful bidder must confirm that any individual natural person eighteen (18) years of age or older is lawfully present in the United States pursuant to C.R.S. § 24-76.5-103(4), if such individual applies for public benefits provided under the contract. If Successful bidder operates as a sole proprietor, it hereby swears or affirms under penalty of perjury that it: (a) is a citizen of the United States or is otherwise lawfully present in the United States pursuant to federal law, (b) shall produce one of the forms of identification required by C.R.S. § 24-76.5- 71 Page 101, et seq., and (c) shall produce one of the forms of identification required by C.R.S. § 24-76.5-103 prior to the effective date of the contract. 9. GENERAL PROVISIONS A. Fund Availability: Financial obligations of the County payable after the current fiscal year are contingent upon funds for that purpose being appropriated, budgeted, and otherwise made available. Execution of this Agreement by County does not create an obligation on the part of County to expend funds not otherwise appropriated in each succeeding year. B. Confidential Information: Confidential information of Contractor should be transmitted separately from non -confidential information, clearly denoting in red on the relevant document at the top the word, "CONFIDENTIAL". However, Contractor is advised that as a public entity, Weld County must comply with the provisions of the Colorado Open Records Act (CORA), C.R.S. 24-72-201, et seq., with regard to public records, and cannot guarantee the confidentiality of all documents. Contractor agrees to keep confidential all of County's confidential information. Contractor agrees not to sell, assign, distribute, or disclose any such confidential information to any other person or entity without seeking written permission from the County. Contractor agrees to advise its employees, agents, and consultants, of the confidential and proprietary nature of this confidential information and of the restrictions imposed by this Agreement. C. Governmental Immunity: No term or condition of this Agreement shall be construed or interpreted as a waiver, express or implied, of any of the immunities, rights, benefits, protections, or other provisions, of the Colorado Governmental Immunity Act §§24-10-101 et seq., as applicable now or hereafter amended. D. Independent Contractor: Contractor agrees that it is an independent contractor and that Contractor's officers, agents or employees will not become employees of County, nor entitled to any employee benefits (including unemployment insurance or workers' compensation benefits) from County as a result of the execution of this Agreement. Contractor shall be solely responsible for its acts and those of its agents and employees for all acts performed pursuant to this Agreement. E. Compliance with Law: Contractor shall strictly comply with all applicable federal and State laws, rules and regulations in effect or hereafter established, including without limitation, laws applicable to discrimination and unfair employment practices. F. Choice of Law/Jurisdiction: Colorado law, and rules and regulations established pursuant thereto, shall be applied in the interpretation, execution, and enforcement of this Agreement. Any provision included or incorporated herein by reference which conflicts with said laws, rules and/or regulations shall be null and void. In the event of a legal dispute between the parties, Contractor agrees that the Weld County District Court shall have exclusive jurisdiction to resolve said dispute. G. No Third -Party Beneficiary Enforcement: It is expressly understood and agreed that the enforcement of the terms and conditions of this Agreement, and all rights of action relating to such enforcement, shall be strictly reserved to the undersigned parties and nothing in this Agreement shall give or allow any claim or right of action whatsoever by any other person not included in this Agreement. It is the express intention of the undersigned parties that any entity other than the undersigned parties receiving services or benefits under this Agreement shall be an incidental beneficiary only. H. Attorney's Fees/Legal Costs: In the event of a dispute between County and Contractor, concerning this Agreement, the parties agree that each party shall be responsible for the payment of attorney fees and/or legal costs incurred by or on its own behalf. I. Disadvantaged Business Enterprises: Weld County assures that disadvantaged business enterprises will be afforded full opportunity to submit bids in response to all invitations and will not be discriminated against on the grounds of race, color, national origin, sex, age, or disability in consideration for an award. J. Service or Work: Contractor agrees to procure the materials, equipment and/or products necessary for the Work and agrees to diligently provide all services, labor, personnel and materials necessary to perform and complete the Work described in the attached Exhibits. Contractor shall faithfully 8IPage perform the Work in accordance with the standards of professional care, skill, training, diligence and judgment provided by highly competent Contractors performing construction services of a similar nature to those described in this Agreement. Contractor shall further be responsible for the timely completion and acknowledges that a failure to comply with the standards and requirements of Work within the time limits prescribed by County may result in County's decision to withhold payment or to terminate this Agreement. K. Term: The term of this Agreement begins upon the date of the mutual execution of this Agreement and shall continue through and until Contractor's completion of the responsibilities described in the attached Exhibits. Both of the parties to this Agreement understand and agree that the laws of the State of Colorado prohibit County from entering into Agreements which bind County for periods longer than one year. This Agreement may be extended upon mutual written agreement of the Parties. In its sole discretion, the County, by the Director of the Department of Public Works or his or her designee, may extend the time for the Contractor to complete the service or work, by not more than thirty (30) days. Such extension shall not increase the compensation to be paid to the Contractor nor change any other term herein. L. Termination; Breach; Cure. County may terminate this Agreement for its own convenience upon thirty (30) days written notice to Contractor. Either Party may immediately terminate this Agreement upon material breach of the other party, however the breaching party shall have fifteen (15) days after receiving such notice to cure such breach. Upon termination, County shall take possession of all materials, equipment, tools and facilities owned by County which Contractor is using, by whatever method it deems expedient; and the Contractor shall deliver to County all drawings, drafts, or other documents it has completed or partially completed under this Agreement, together with all other items, materials and documents which have been paid for by County, and these items, materials and documents shall be the property of County. Copies of work product that is incomplete at the time of termination shall be marked "DRAFT -INCOMPLETE." If this Agreement is terminated by County, Contractor shall be compensated for, and such compensation shall be limited to, (1) the sum of the amounts contained in invoices which it has submitted and which have been approved by the County; (2) the reasonable value to County of the services which Contractor provided prior to the date of the termination notice, but which had not yet been approved for payment; and (3) the cost of any work which the County approves in writing which it determines is needed to accomplish an orderly termination of the work. County shall be entitled to the use of all material generated pursuant to this Agreement upon termination. Upon termination of this Agreement by County, Contractor shall have no claim of any kind whatsoever against the County by reason of such termination or by reason of any act incidental thereto, except for compensation for work satisfactorily performed and/or materials described herein properly delivered. M. Extension or Modification: Any amendments or modifications to this agreement shall be in writing signed by both parties. No additional services or work performed by Contractor shall be the basis for additional compensation unless and until Contractor has obtained written authorization and acknowledgement by County for such additional services. Accordingly, no claim that the County has been unjustly enriched by any additional services, whether or not there is in fact any such unjust enrichment, shall be the basis of any increase in the compensation payable hereunder. In the event that written authorization and acknowledgment by the County for such additional services is not timely executed and issued in strict accordance with this Agreement, Contractor's rights with respect to such additional services shall be deemed waived and such failure shall result in non-payment for such additional services or work performed. In the event the County shall require changes in the scope, character, or complexity of the work to be performed, and said changes cause an increase or decrease in the time required or the costs to the Contractor for performance, an equitable adjustment in fees and completion time shall be negotiated between the parties and this Agreement shall be modified accordingly by Change Order. Any claims by the Contractor for adjustment hereunder must be made in writing prior to performance of any work covered in the anticipated Change Order. Any change in work made without such prior Change Order shall be deemed covered in the compensation and time provisions of this Agreement. N. Subcontractors: Contractor acknowledges that County has entered into this Agreement in reliance upon the particular reputation and expertise of Contractor. Contractor shall not enter into any subcontractor agreements for the completion of this Work without County's prior written consent, which may be withheld in County's sole discretion. County shall have the right in its reasonable discretion to approve all personnel assigned to the Work during the performance of this Agreement and no personnel to whom County has an objection, in its reasonable discretion, shall be assigned to the Work. Contractor shall require each subcontractor, as approved by County and to the extent of the Work to be performed by 9IPage the subcontractor, to be bound to Contractor by the terms of this Agreement, and to assume toward Contractor all the obligations and responsibilities which Contractor, by this Agreement, assumes toward County. County shall have the right (but not the obligation) to enforce the provisions of this Agreement against any subcontractor hired by Contractor and Contractor shall cooperate in such process. The Contractor shall be responsible for the acts and omissions of its agents, employees and subcontractors. O. Warranty: Contractor warrants that the Work performed under this Agreement will be performed in a manner consistent with the professional construction standards governing such services and the provisions of this Agreement. Contractor further represents and warrants that all Work shall be performed by qualified personnel in a professional manner, consistent with industry standards, and that all services will conform to applicable specifications. In addition to the foregoing warranties, Contractor is aware that all work performed on this Project pursuant to this Agreement is subject to a warranty period during which Contractor must correct any failures or deficiencies caused by Contractor's workmanship or performance. This warranty shall commence on the date of County's final inspection and acceptance of the Project, and shall continue for one year, or such greater time as specified in the attached Exhibits. P. Non -Assignment: Contractor may not assign or transfer this Agreement or any interest therein or claim thereunder, without the prior written approval of County. Any attempts by Contractor to assign or transfer its rights hereunder without such prior approval by County shall, at the option of County, automatically terminate this Agreement and all rights of Contractor hereunder. Such consent may be granted or denied at the sole and absolute discretion of County. Q. Interruptions: Neither party to this Agreement shall be liable to the other for delays in delivery or failure to deliver or otherwise to perform any obligation under this Agreement, where such failure is due to any cause beyond its reasonable control, including but not limited to Acts of God, fires, strikes, war, flood, earthquakes or Governmental actions. R. Non -Exclusive Agreement: This Agreement is nonexclusive and County may engage or use other contractors or persons to perform services of the same or similar nature. S. Employee Financial Interest/Conflict of Interest — C.R.S. §§24-18-201 et seq. and §24-50-507: The signatories to this Agreement agree that to their knowledge, no employee of Weld County has any personal or beneficial interest whatsoever in the service or property which is the subject matter of this Agreement. T. Severability: If any term or condition of this Agreement shall be held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, this Agreement shall be construed and enforced without such provision, to the extent that this Agreement is then capable of execution within the original intent of the parties. U. Compliance with Davis -Bacon Wage Rates: The successful bidder understands and agrees that, if required by the Scope of Work, the work shall be in compliance with the Davis -Bacon Wage Rates. V. Board of County Commissioners of Weld County Approval: This Agreement shall not be valid until it has been approved by the Board of County Commissioners of Weld County, Colorado or its designee. W. Compensation Amount: Upon the successful bidder's successful completion of the construction of the Project, and County's acceptance of the same, County agrees to pay an amount no greater than the amount of the accepted bid. The successful bidder acknowledges no payment in excess of that amount will be made by County unless a "change order" authorizing such additional payment has been specifically approved by the Director of Weld County Public Works, or by formal resolution of the Weld County Board of County Commissioners, as required pursuant to the Weld County Code. County will not withhold any taxes from monies paid to the successful bidder hereunder and the successful bidder agrees to be solely responsible for the accurate reporting and payment of any taxes related to payments made pursuant to the terms of this Agreement. X. INSURANCE REQUIREMENTS: Contractor must secure, before the commencement of the Work, the following insurance covering all operations, goods, and services provided pursuant to this Agreement, and shall keep the required insurance coverage in force at all times during the term of the Agreement, or any 10 I P a g e extension thereof, and during any warranty period. For all coverages, Contractor's insurer shall waive subrogation rights against County. a. Types of Insurance: Workers' Compensation/Employers Liability Insurance as required by state statute, covering all the Contractor's employees acting within the course and scope of their employment. The policy shall contain a waiver of subrogation against the County. This requirement shall not apply when a Contractor or subcontractor is exempt under Colorado Workers' Compensation Act., AND when such Contractor or subcontractor executes the appropriate sole proprietor waiver form. Commercial General Liability Insurance including public liability and property damage covering all operations required by the Work. Such policy shall include minimum limits as follows: $1,000,000 each occurrence; $2,000,000 general aggregate; $2,000,000 products and completed operations aggregate; $1,000,000 Personal Advertising injury; $50,000 any one fire; and $5,000 Medical payment per person. Medical operations coverage shall be provided for a minimum period of one (1) year following final acceptance. Automobile Liability: Contractor shall maintain limits of $1,000,000 for bodily injury per person; $1,000,000 for bodily injury for each accident; and $1,000,000 for property damage applicable to all vehicles operating both on County property and elsewhere, for vehicles owned, hired, and non -owned vehicles used in the performance of this Contract. Professional Liability (Errors and Omissions Liability): Contractor shall maintain limits of $1,000,000 Per Loss and $2,000,000 Annual Aggregate for both the Contractor and subcontractors where: (1) the Work includes Construction Surveying and/or Survey Monumentation and/or (2) plans, specifications, and submittals are required to be signed and sealed by the Contractor's or subcontractor's Professional Engineer including but not limited to (a) Shop drawings and working drawings as defined in subsection 105.25 of the Specifications, (b) Mix designs, (c) Contractor performed design work as required by the plans and Specifications, (d) Change Orders, or (e) Approved Value Engineering Proposals. The policy shall cover professional misconduct or lack of ordinary skill for those positions defined in the Scope of Services of this contract. Contractor shall maintain limits for all claims covering wrongful acts, errors and/or omissions, including design errors, if applicable, for damage sustained by reason of or in the course of operations under this Contract resulting from professional services. In the event that the professional liability insurance required by this Contract is written on a claims -made basis, Contractor warrants that any retroactive date under the policy shall precede the effective date of this Contract; and that either continuous coverage will be maintained or an extended discovery period will be exercised for a period of two (2) years beginning at the time work under this Contract is completed. Umbrella or Excess Liability Insurance: Contractor shall maintain limits of $1,000,000 and shall become primary in the event the primary liability policy limits are impaired or exhausted. The policy shall be written on an Occurrence form and shall be following form of the primary. Pollution Liability. Weld County requires this coverage whenever work at issue under this Contract involves potential pollution risk to the environment or losses caused by pollution conditions that may arise from the operations of the Contractor described in the Exhibits. The policy shall cover the Contractor's completed operations. Coverage shall apply to sudden and gradual pollution conditions resulting from the escape of release of smoke, vapors, fumes, acids, alkalis, toxic chemicals, liquids, or gases, natural gas, waste materials, or other irritants, contaminants, or pollutants (including asbestos). If the coverage is written on a claims -made basis, the Contractor warrants that any retroactive date applicable to coverage under the policy precedes the effective date of this Contract; and that continuous coverage will be maintained or an extended discovery period will be exercised for a period of three (3) years beginning from the time that work under this contract is completed. 11 1 Page Minimum Limits: Per Loss $ 1,000,000 Aggregate $ 1,000,000 Builders' Risk Insurance or Installation Floater— Completed Value Basis: Unless otherwise provided in the attached Exhibits, the Contractor shall purchase and maintain, in a company or companies lawfully authorized to do business in Colorado, Builders' Risk Insurance in the amount of the initial contract amount as described in the attached Exhibits, plus the value of subsequent modifications, change orders, and cost of material supplied or installed by others, comprising total value of the entire Project at the site on a replacement cost basis without optional deductibles. (1) The policy must provide coverage from the time any covered property becomes the responsibility of the Contractor, and continue without interruption during construction, renovation, or installation, including any time during which the covered property is being transported to the construction installation site, or awaiting installation, whether on or off site. (2) Such Builders' Risk Insurance shall be maintained, unless otherwise provided in the Contract Documents or otherwise agreed in writing by all persons and entities who are beneficiaries of such insurance, until final payment has been made or until no person or entity other than the County 's has insurable interest in the property to be covered, whichever is later. (3) The Builders' Risk insurance shall include interests of the County and if applicable, affiliated or associate entities, the General Contractor, subcontractors and sub -tier contractors in the Project. (4) The Builders' Risk Coverage shall be written on a Special Covered Cause of Loss form and shall include theft, vandalism, malicious mischief, collapse, false -work, temporary buildings, transit, debris removal including demolition, increased cost of construction, architect's fees and expenses, flood (including water damage), earthquake, and if applicable, all below and above ground structures, piping, foundations including underground water and sewer mains, piling including the ground on which the structure rests and excavation, backfilling, filling, and grading. Flood damage coverage is not required for work within the floodway or 100 -year floodplain. Regardless, Contractor shall bear all risk associated with any and all loss resulting from flood events during construction. (5) The Builders' Risk shall include a Beneficial Occupancy Clause. The policy shall specifically permit occupancy of the building during construction. County Contractor shall take reasonable steps to obtain consent of the insurance company and delete any provisions with regard to restrictions within any Occupancy Clauses within the Builder's Risk Policy. The Builder's Risk Policy shall remain in force until acceptance of the project by the County. (6) Equipment Breakdown Coverage (a.k.a. Boiler & Machinery) shall be included as required by the Contract Documents or by law, which shall specifically cover insured equipment during installation and testing (including cold and hot testing). (7) The deductible shall not exceed $25,000 and shall be the responsibility of the Contractor for all covered perils within the required policy. For all general liability, excess/umbrella liability, and professional liability policies, if the policy is a claims -made policy, the retroactive date must be on or before the contract date or the first date when any goods or services were provided to County, whichever is earlier. b. Proof of Insurance: Contractor shall provide to County a certificate of insurance, a policy, or other proof of insurance as determined in County's sole discretion. Contractor shall provide a certificate of insurance naming Weld County, Colorado, its elected officials, and its employees as an additional named insured. c. Subcontractor Insurance: Contractor hereby warrants that all subcontractors providing services under this Agreement have or will have the above -described insurance prior to the commencement of the Work, or otherwise that they are covered by the Contractor's policies to the minimum limits as required 12 I P a g e herein. Contractor agrees to provide proof of insurance for all such subcontractors upon request by the County. No limitation of Liability: The insurance coverages specified in this Agreement are the minimum requirements, and these requirements do not decrease or limit the liability of Contractor. The County in no way warrants that the minimum limits contained herein are sufficient to protect the Contractor from liabilities that might arise out of the performance of the Work under by the Contractor, its agents, representatives, employees, or subcontractors. The Contractor shall assess its own risks and if it deems appropriate and/or prudent, maintain higher limits and/or broader coverages. The Contractor is not relieved of any liability or other obligations assumed or pursuant to the Contract by reason of its failure to obtain or maintain insurance in sufficient amounts, duration, or types. The Contractor shall maintain, at its own expense, any additional kinds or amounts of insurance that it may deem necessary to cover its obligations and liabilities under this Agreement. e. Certification of Compliance with Insurance Requirements. The Contractor stipulates that it has met the insurance requirements identified herein. The Contractor shall be responsible for the professional quality, technical accuracy, and quantity of all services provided, the timely delivery of said services, and the coordination of all services rendered by the Contractor and shall, without additional compensation, promptly remedy and correct any errors, omissions, or other deficiencies. Y. Indemnity. The Contractor shall defend, indemnify and hold harmless County, its officers, agents, and employees, from and against any and all injury, loss, damage, liability, suits, actions, claims, or willful acts or omissions of any type or character arising out of the Work done in fulfillment of the terms of this Agreement or on account of any act, claim or amount arising or recovered under workers' compensation law or arising out of the failure of the Contractor to conform to any statutes, ordinances, regulation, judicial decision, or other law or court decree. The Contractor shall be fully responsible and liable for any and all injuries or damage received or sustained by any person, persons, or property on account of its performance under this Agreement or its failure to comply with the provisions of the Agreement. It is agreed that the Contractor will be responsible for primary loss investigation, defense and judgment costs where this contract of indemnity applies. In consideration of the award of this contract, the Contractor agrees to waive all rights of subrogation against the County its associated and/or affiliated entities, successors, or assigns, its elected officials, trustees, employees, agents, and volunteers for losses arising from the work performed by the Contractor for the County. A failure to comply with this provision shall result in County's right to immediately terminate this Agreement. 131Page BID PROPOSAL To: Weld County Purchasing Department Attention: Controller/Purchasing Director P.O. Box 758, 1150 " O" Street Greeley, Colorado 80632 Bid Proposal for: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) PROPOSAL Pursuant to and in full compliance with all Contract Documents the undersigned Bidder hereby proposes to furnish all labor and materials and to perform all Work required for the complete and prompt execution of everything described or shown in or reasonably implied from the Bidding Documents, including the Drawings and Specifications, for the Work above indicated for the monies indicated below which includes all State, County and local taxes normally payable with respect to such Work. The amounts stated include all allowances for profit and overhead, taxes, fees and permits, transportation, services, tools and equipment, labor and materials and other incidental costs. The Bidder and all Sub -Bidders shall include in their bid all Sales and Use Tax, if applicable. State of Colorado and Weld County tax shall not be included. Upon application, the State of Colorado Department of Revenue shall issue to a Bidder or Sub -Bidder a Certificate or Certificates of Exemption indicating that the purchase of construction or building materials is for a purpose stated in Section 39-26-114, CRS, and is free from Colorado State Sales Tax. EXAMINATION OF DOCUMENTS AND SITE The Bidder has carefully examined the Bidding Documents, including the Drawings and Specifications, and has examined the site of the Work, so as to fully appraise himself of the conditions at the site and to gain a clear understanding of the Work to be executed and is thoroughly familiar with all local, state and federal laws, ordinances, rules, regulations and other factors affecting performance of the Work. PROPOSAL GUARANTEE This Bid Proposal is accompanied by the required Bid Bond of five percent (5%) based upon the Total Cost of all items required to be Bid. Weld County, Colorado is authorized to hold said Bid Bond for a period of not more than sixty (60) days after the opening of the Bids for the Work indicated, unless the undersigned Bidder is awarded the Contract within said period, in which event the Owner may retain said Bid Bond until the undersigned Bidder has executed the required Agreement and furnished the required Performance Bond, Labor & Materials Payment Bond, and Certificates of Insurance. TIME OF COMPLETION The Bidder agrees to make his best effort to complete the entire Project as soon as possible and within the time specified in the Contract after the issuance of the Notice to Proceed subject to the CDOT Standard Specifications for Road and Bridge Construction, Section 108. EXECUTION OF DOCUMENTS The Bidder understands that if this Bid Proposal is accepted, the Bidder must execute the required Agreement and furnish the required Performance Bond, Labor & Materials Payment Bond and Insurance Certificates within ten (10) days from the date of Notice of Award. METHOD OF AWARD The Owner reserves the right to reject any Bid from any Bidder to complete the Work as specified regardless of the amount of the Bid. It is understood by the Bidder, how Bids shall be awarded and that should the cost of the Bid exceed budgeted funds, the Owner reserves the right to reject any or all Bids or portions of Work Bid or the use of any of the methods stated in the Instructions to Bidders to obtain the most advantageous Bid price. All bids will be reviewed by the Owner and Engineer. For any discrepancy between words and figures; the words will control. All mathematics will be checked and the correct total used for determining the low bidder. PAGES 1 —14 DO NOT NEED TO BE INCLUDED IN THE BID 14IPage BID TABULATION Item Description Complete in Place Unit Unit Cost Project Total (Per Item) Pond I Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7 Qty Total Cost Oty Total Cost GUy Total Cost Qty Total Cost Qty Total Cost Qty Total Cost QIy Total Cost Qty Total Cost Construction Clearing & Grubbing - AC 2.3 0.2 0.9 0.5 0.2 0.1 0.5 Topsoil Stockpile - CY 1535 120 700 80 210 55 370 Topsoil Placement - CY 1535 120 700 80 210 0 55 370 Unclassified Excavation - CY 5945 110 1945 400 2435 605 200 250 Embankment Material (R -value 20) - CY 2345 150 1425 120 340 80 80 150 Export Fill - CY 2800 10 G 110 1685 585 170 240 Import Fill (R -value 40) - CY 1350 0 1350 0 i? Ci Remove & Replace Riprap - CY 20 20 0 o Riprap 9" - CY 174 34 132 4 2 2 Riprap 9" Grouted - CY 33 10 is 6 i.i 17 Riprap 12 - CY 109 0 20 77 r) 12 Saw Asphalt Mat - LF 3098 290 433 725 0 780 870 Removal of Asphalt Mat - SY 3270 620 215 280 U 1390 765 HMA(Or SX) (100) (PG 64-22) - . TON 1230 180 65 600 0 160 225 Aggregate Base Course (Class 6) R -value 69 YES TON 1220 175 60 615 0 155 215 Concrete Pan (4') - LF 1410 360 780 90 110 70 Concrete Pan 6' - LF 410 0 250 160 Concrete Pan (10') - LF 535 0 535 Concrete Pavement 7" - SY 1358 290 288 660 120 Curb and Gutter (Section I -B) - LF 480 220 260 Concrete Retaining Wall 3' Max Height) - LF 800 800 PVC SDR51 6" YES LF 16 16 PVC (C900) 12" YES LF 455 180 40 200 35 RCP (Strength Class III 15" YES LF 150 150 RCP (Strength Class III (18") YES LF 165 125 ii 40 Concrete FES 15" w/ Toe Wall YES EA 1 r. 1 Concrete FES 18 YES EA 1 i) Concrete FES 18 w/ Toe Wall YES EA 1 1 D DIP (315 STRC) 18" YES LF 190 i) 1) 0 0 190 Small Pipe Headwall YES EA 5 2 1 1 1 0 i' Small Pipe Headwall (Double) YES EA 1 0 [) ri D 0 Outlet Structure YES EA 4 1 1 1 1 0 [; Outlet Structure w/ Head ate YES EA 1 0 0 1 Type C Inlet 5' (Grate Closed Mesh) YES EA 3 1 0 2 0 Type D Inlet 5' (Grate Closed Mesh) YES EA 1 0 0 1) o U 1 Single Combo Inlet YES EA 1 u 1 Manhole 4' 5' Depth) YES EA 3 0 1 2 Sand Oil Se arator YES EA 1 ri 1 151Page Project Total'_ (Per Item Pond I Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7 Complete Unit t Total Total Total Total Total Total Total mes IteDescription in Place. Unit Cost-. Q Total Cast Q . Cos4 Q .' Cost Q Cost Q Cost •Qt Cost. Q Cost' Qt .Cost Remove & Replace Fence (Chain Link Only) - LF 300 0 300 Remove & Re lace Gate Post - EA 1 0 1 Remove & Replace Light Pole - EA 1 0 0 Electric Line Relocation - EA 2 1 G 1 Irrigation Line Relocation - LF 435 285 150 Remove Electric Utility - EA 1 1 0 Tree Removal - EA 1 !•Cl t) 1 Core Drill & Connect to Existing Manhole - EA 1 U 1 ii Bollard - EA 15 € 15 As -Built Record Drawings - EA 7 1 1 1 1 1 1 1 Construction Subtotal (Each Pond) Force Account - Minor Contract Revision $200,000.00 Erosion Contro!.. • Seeding - AC 1.88 0.15 0.87 0.10 0.24 0.07 0.45 Biotic Earth - AC 1.88 0.15 0.87 0.10 0.24 0.07 0.45 Hydraulic Mulch - AC 1.17 0.05 0.47 0.01 0.13 0.06 0.45 Soil Retention Blanket (Straw/Coconut) - SY 3068 380 1655 408 385 240 Mirafi FW300 Geotextile - SY 573 80 275 22 150 23 23 Aggregate Bag - LF 290 50 10 110 10 110 u Erosion Control Log - LF 1820 170 530 270 80 270 500 Orange Crush Eco Sag - EA 15 3 0 0 12 Concrete Washout (Pre -Fab) EA 7 1 1 1 1 1 1 1 Dewatering - LS 2 U 1 v 1 Erosion Control Management Days - EA 91 13 13 13 13 13 13 13 Vehicle Tracking Control (Pre -Fab) - EA 2 1 1 Erosion Control Subtotal Each Pond Force Account - Erosion Control $50 000.00 Force Account - Coordinate with Fuel Site ProjectManager/Contractor $9 000.00 Force Account - Coordinate with PW Operations Manager for Snow Removal Operations $21,000.00 r..�. Estimated1 ) Project Total(Construction + Erosion Control + Force Account Items ,., A The Bid Tabulation table is also available in an Excel spreadsheet which includes the formulas to help populate the table. See Bid Tabulation Spreadsheet. Total Bid amounts are to be shown in both words and figures. In case of discrepancy, the amount shown in words will govern. The above unit prices shall include all labor, materials, bailing, shoring, removal, overhead, profit, insurance, etc., to cover the finished work of the several kinds called for. Bidder understands that the County reserves the right to reject any or all bids and to waive any informality in the bidding. The Bidder agrees that this bid shall be good and may not be withdrawn for a period of thirty (30) calendar days after the scheduled closing time for receiving bids. Upon receipt of County's written acceptance of this bid, Bidder will execute the formal contract attached within ten (10) days and deliver a Surety Bond or Bonds as required by the AGREEMENT. WELD COUNTY IS EXEMPT FROM COLORADO SALES TAXES. THE CERTIFICATE OF EXEMPTION NUMBER IS #98-03551-0000. PROPOSAL BOND The bid security attached is to become the property of the County in the event the contract and bond are not executed within the time above set forth, as liquidated damages for the delay and additional expense to the County caused thereby. Respectively submitted, By: (SEAL - If bid is by a corporation) Title: Address: 17IPage PROPOSAL BOND PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) KNOW ALL MEN BY THESE PRESENTS, that we, as Principal, hereinafter called the Principal, a [corporation, partnership, or individual] duly authorized by law to do business in the State of Colorado, and [Surety Company Name], a corporation duly authorized to do surety business under the laws of the State of Colorado as Surety, hereinafter called the Surety, are hereby held and firmly bound unto Weld County, Colorado as Obligee in the penal sum of Dollars ($ ), lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, administrators, successors and assigns, jointly and severally, firmly to these presents. WHEREAS, the Principal has submitted a Proposal dated , 2021 for the Project, and if selected as the Contractor on this Project, the Principal and Surety are firmly bound and jointly and severally liable to the Owner in the penal sum described above. WHEREAS, the Owner has required as a condition for receiving said Proposal that the principal deposit with the Owner either a certified check equivalent to not less than five percent (5%) of the amount of said Proposal or in lieu thereof furnish a Proposal Bond for said amount conditioned such that in the event of failure to execute the proposed Contract for such construction if the Contract is to be awarded to him, that said sum be paid immediately to the Owner as liquidated damages and not as a penalty for the principal's failure to perform. The above obligation is void if the Principal enters into the Contract within sixty (60) days of selection of the Principal, negotiates any final terms and conditions in good faith, and has furnished all required documents for issuance of the Notice to Proceed, unless time is extended by Weld County. IN WITNESS WHEREOF, the above parties have executed this instrument under their several seals this day of , 2021 the name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersigned representative pursuant to authority of its governing board. Principal:. Signature: Title: ATTEST: By: Surety: Signature: Title: ATTEST: By: Witness: Printed Name: Witness: Printed Name: 18 I Page RECEIPT OF ADDENDA The undersigned acknowledges receipt of the following Addenda to the Invitation for Bids, Drawings, Specifications and other Contract Documents. Addendum No. Date: By: Addendum No. Date: By: Addendum No. Date: By: Addendum No. Date: By: Contractor agrees to perform all Work described in the Contract Documents for the prices as shown in the Bid Tabulation. Progress payments shall be based on a percentage of the Lump Sum price shown in the bid tabulation which has been completed or the actual quantities furnished, installed or constructed. The undersigned, by his/her signature, hereby acknowledges and represents that: 1. Performance of each and every portion of the Work is included as part of the Contractor's Price. 2. All designs, equipment, materials, labor, insurance and bond premiums, offices, other overhead, profit and services relating to the Contractor's performance of its obligations under the Contract Documents (including all Work, Warranties, equipment, materials, labor, and services provided by subcontractor and intellectual property rights necessary to perform the Work) are included as part of the Contractor's Price. 3. The cost of obtaining all Governmental Approvals (except for approvals which are the responsibility of the County, as specifically provided elsewhere in the Contract Documents) is included as part of the Contractor's Price. 4. All costs of compliance with and maintenance of the Governmental Approvals and compliance with legal requirements are included as part of the Contractor's Price. 5. Payment of any taxes, duties, permit fees, and other fees and/or royalties imposed with respect to the Work and any equipment, materials, labor, or services included therein are included a part of the Contractor's Price. 6. All fines, penalties, and damage payments to others as Contractor is obligated to pay herein are include as part of the Contractor's Price. 7. The Contractor's Price proposed herein meets all the conditions, specifications and special provisions set forth in the request for proposal for Request No. B2100076. 8. The signatory is authorized to bind the below -named contractor for the amount shown on the accompanying bid tabulation. 9. The signed bid submitted, all the documents of the Request for Proposal contained herein (including, but not limited to, product specifications and scope of services), and the formal acceptance of the bid by Weld County, together constitutes a contract, with the contract date being the date of formal acceptance of the bid by Weld County. 10. Weld County reserves the right to reject any and all bids, to waive any informality in the bids, and to accept the bid that, in the opinion of the Board of County Commissioners, is to the best interests of Weld County. The bid(s) may be awarded to more than one vendor. FIRM BY (Please print) BUSINESS ADDRESS DATE CITY, STATE, ZIP CODE TELEPHONE NO SIGNATURE E-MAIL FAX TAX ID # 19 I Page Form Waa9 I Request for Taxpayer Give Form to the (Rev. August 2013) Identification Number and Certification requester. Do not Depa trrvnt of the Treasury Send to the IRS. Internal Revenue Service Name (as shown on your income tax return) m rn Business name/disregarded entity name, if different from above ra Check appropriate box for federal tax classification: Exemptions (see instructions): 0 ❑ Individual/sole proprietor [II]C Corporation [I] S Corporation L] Partnership ❑ Trust/estate H p Exempt payee code (if any) ❑ Limited liability company. Enter the tax classification (C=C corporation, SS corporation, P=partnership) ► Exemption from FATCA reporting C � code (if any) O ❑ Other (see instructions)► Address (number, street, and apt. or suite no.) Requester's name and address (optional 0 a City, state, and ZIP code ul List account number(s) here (optional Taxpayer Identification Number (TIN) Enter your TIN in the appropriate box. The TIN provided must match the name given on the "Name" line I social security number to ed backup lwithholding. pr,ritFor individuals, this is your social security sr number 3.However, fora resident alien, sole proprietor, or disregarded entity, see the Part I instructions on page 3. For other entities, it is your employer identification number (EIN). If you do not have a number, see How to get a TIN on page 3. Note. If the account is in more than one name, see the chart on page 4 for guidelines on whose number to enter. Under penalties of perjury, I certify that: 1. The number shown on this form is my correct taxpayer identification number (or I am waiting for a number to be issued to me), and 2. I am not subject to backup withholding because: (a) I am exempt from backup withholding, or (b) I have not been notified by the Internal Revenue Service (IRS) that I am subject to backup withholding as a result of a failure to report all interest or dividends, or (c) the IRS has notified me that I am no longer subject to backup withholding, and 3. I am a U.S. citizen or other U.S. person (defined below), and 4. The FATCA code(s) entered on this form (if any) indicating that I am exempt from FATCA reporting is correct. Certification instructions. You must cross out item 2 above if you have been notified by the IRS that you are currently subject to backup withholding because you have failed to report all interest and dividends on your tax return. For real estate transactions, item 2 does not apply. For mortgage interest paid, acquisition or abandonment of secured property, cancellation of debt, contributions to an individual retirement arrangement (IRA), and generally, payments other than interest and dividends, you are not required to sign the certification, but you must provide your correct TIN. See the instructions on page 3. Sign Signature of Here U.S. person' Date► Genera( Instructions Section references are to the Internal Revenue Code unless otherwise noted. Future developments. The IRS has created a page on IRS.gov for information about Form W-9, at www.irs.gov/w9. Information about any future developments affecting Form W-9 (such as legislation enacted after we release it) will be posted on that page. Purpose of Form A person who is required to file an information return with the IRS must obtain your correct taxpayer identification number (TIN) to report, for example, income paid to you, payments made to you in settlement of payment card and third party network transactions, real estate transactions, mortgage interest you paid, acquisition or abandonment of secured property, cancellation of debt, or contributions you made to an IRA. Use Form W-9 only if you are a U.S. person (including a resident alien), to provide your correct TIN to the person requesting it (the requester) and, when applicable, to: 1. Certify that the TIN you are giving is correct (or you are waiting for a number to be issued), 2. Certify that you are not subject to backup withholding, or withholding tax on foreign partners' share of effectively connected income, and 4. Certify that FATCA code(.) entered on this form (if any) indicating that you are exempt from the FATCA reporting, is correct. Note. If you are a U.S. person and a requester gives you a form other than Form W-9 to request your TIN, you must use the requester's form if it is substantially similar to this Form W-9. Definition of a U.S. person. For federal tax purposes, you are considered a U.S. person if your are: • An individual who is a U.S. citizen or U.S. resident alien, • A partnership, corporation, company, or association created or organized in the United States or under the laws of the United States, • An estate (other than a foreign estate), or • A domestic trust (as defined in Regulations section 301.7701-7). Special rules for partnerships. Partnerships that conduct a trade or business in the United States are generally required to pay a withholding tax under section 1446 on any foreign partners' share of effectively connected taxable income from such business. Further, in certain cases where a Form W-9 has not been received, the rules under section 1446 require a partnership to presume that a partner is a foreign person, and pay the section 1446 withholding tax. Therefore, if you are a U.S. person that is a partner in a partnership conducting a trade or business in the 3. Claim exemption from backup withholding it you are a U.S. exempt payee. It United States, provide Form W-9 to the partnwsfip to establish your U.S. status applicable, you are also certifying that as a U.S. person, your allocable share of and avoid section 1446 withholding on you share of partnership income, any partnership income from a U.S. trade or business is not subject to the Cat. No. 10231X Form W-9 (Rev. 8-2013) 20 I Page **ALL BIDDERS SHALL PROVIDE A W-9 WITH THE SUBMISSION OF THEIR BID. FAILURE TO SUBMIT A W-9 SHALL RESULT IN THE BID NOT BEING ACCEPTED.** ANTI -COLLUSION AFFIDAVIT PUBLIC WORKS STORMWATER IMPROVEMENTS 00076) I hereby attest that I am the person responsible within my firm for the final decision as to the price(s) and amount of this bid or, if not, that I have written authorization, enclosed herewith, from that person to make the statements set out below on his or her behalf and on behalf of my firm. I further attest that: 1. The price(s) and amount of this bid have been arrived at independently, without consultation, communication or agreement for the purpose or with the effect of restricting competition with any other firm or person who is a bidder or potential prime bidder. 2A. Neither the price(s) nor the amount of this bid have been disclosed to any other firm or person who is a bidder or potential prime bidder on this project and will not be so disclosed prior to bid opening. 2B. Neither the prices nor the amount of the bid of any other firm or person who is a bidder or potential prime bidder on this project have been disclosed to me or my firm. 3A. No attempt has been made to solicit, cause or induce any firm or person who is a bidder or potential prime bidder to refrain from bidding on this project, or to submit a bid higher than the bid of this firm, or any intentionally high or non- competitive bid or other form of complementary bid. 3B. No agreement has been promised or solicited for any other firm or person who is a bidder or potential prime bidder on this project to submit an intentionally high, noncompetitive or other form of complementary bid on this project. 4. The bid of my firm is made in good faith and not pursuant to any consultation, communication, agreement or discussion with, or inducement or solicitation by or from any firm or person to submit any intentionally high, noncompetitive or other form of complementary bid. 5. My firm has not offered or entered into a subcontract or agreement regarding the purchase or sale of materials or services from any firm or person, or offered, promised or paid cash or anything of value to any firm or person, whether in connection with this or any other project, in consideration for an agreement or promise by any firm or person to refrain from bidding or to submit any intentionally high, noncompetitive or other form of complementary bid or agreeing or promising to do so on this project. 6. My firm has not accepted or been promised any subcontract or agreement regarding the sale of materials or services to any firm or person and has not been promised or paid cash or anything of value by any firm or person, whether in connection with this or any other project, in consideration for my firm's submitting any intentionally high, noncompetitive or other form of complementary bid, or agreeing or promising to do so, on this project. 7. I have made a diligent inquiry of all members, officers, employees, and agents of my firm with responsibilities relating to the preparation, approval or submission of my firm's bid on this project and have been advised by each of them that he or she has not participated in any communication, consultation, discussion, agreement, collusion, or other conduct inconsistent with any of the statements and representations made in this affidavit. 8. I understand and my firm understands that any misstatement in this affidavit is and shall be treated as a fraudulent concealment from the Colorado Department of Transportation, of the true facts relating to submission of bids for this contract. I DECLARE UNDER PENALTY OF PERJURY IN THE SECOND DEGREE, AND ANY OTHER APPLICABLE STATE OR FEDERAL LAWS, THAT THE STATEMENTS MADE ON THIS DOCUMENT ARE TRUE AND COMPLETE TO THE BEST OF MY KNOWLEDGE. Contractor's firm or company name By Date Title 2nd contractor's firm or company name. (If joint venture.) By Date Title Sworn to before me this day of, , 20_ Notary Public My commission expires NOTE: This document must be signed in ink. 21 1 Page TITLE 49, CFR, PART 29 DEBARMENT AND SUSPENSION CERTIFICATION (To be signed by authorized signatory of Proposer, each Major Participant) The undersigned, under penalty of perjury, certifies that, except as noted below, he/she or any other person associated therewith in the capacity of owner, partner, director, officer, manager: • Is not currently under suspension, debarment, voluntary exclusion, or determination of ineligibility by any federal agency. • Has not been suspended, debarred, voluntarily excluded or determined ineligible by any federal agency within the past 3 years. • Does not have a proposed debarment pending. • Has not been indicted, convicted, or had a civil judgment rendered against it by a court of competent jurisdiction in any manner involving fraud or official misconduct within the past 3 years. • Has not within the past 3 years had one or more public transactions (federal, state or local) terminated for cause or default. If there are any exceptions to this certification, insert the exceptions in the following space. Exceptions will not necessarily result in denial of Award but will be considered in determining bidder responsibility. For any exception noted above, indicate below to whom it applies, initiating agency, and dates of action. Note: Providing false information may result in criminal prosecution or administrative sanctions. Date: Signature Title 22 1 Page Weld County Project # CONTRACTORS PERFORMANCE CAPABILITY STATEMENT 1. List names of partnerships or joint ventures 0 none 2. List decreases in the contractors fiscal or workmanship qualifications compared to the last prequalification statement submitted to Weld County. (Attach additional sheets if necessary.) a. Key personnel changes 0 none b. Key equipment changes 0 none c. Fiscal capability changes (legal actions, etc.) 0 none d. Other changes that may effect the contractors ability to perform work. ❑ none I DECLARE UNDER PENALTY OF PERJURY IN THE SECOND DEGREE, AND ANY OTHER APPLICABLE STATE OR FEDERAL LAWS, THAT THE STATEMENTS MADE ON THIS DOCUMENT ARE TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE Contractor's firm or company name By Date Title 2nd Contractor's firm or company name (if joint venture) By Date Title Weld Form #605 1120 23IPage Weld County RRo ECT NO ASSIGNMENT OF ANTITRUST CLAIMS Contractor and Weld County recognize that in actual economic practice antitrust violations ultimately impact on Weld County. Therefore, for good cause and as consideration for executing this contract and for receiving payments hereunder: 1. Contractor hereby irrevocably assigns to Weld County any and all claims it may now have or which may hereafter accrue to it under federal or state antitrust laws in connection with the particular project, goods or services purchased or acquired by Weld County pursuant to this contract. 2. Contractor hereby expressly agrees: a. That, upon becoming aware that a third party has commenced a civil action asserting on Contractor's behalf an antitrust claim which has been assigned to Weld County hereunder, Contractor shall immediately advise in writing: (1) Such third party that the antitrust claim has been assigned to Weld County, and (2) Weld County that such civil action is pending and of the date on which, in accordance with subparagraph a. (1) above, Contractor notified such third party that the antitrust claim had been assigned to Weld County; b. To take no action which will in any way diminish the value of the claims or rights assigned or dedicated to Weld County hereunder; and c. Promptly to pay over to Weld County its proper share of any payment under an antitrust claim brought on Contractor's behalf by any third party and which claim has been assigned to Weld County hereunder. 3. Further, Contractor agrees that in the event it hires one or more subcontractors to perform any of its duties under the contract, Contractor shall require that each such subcontractor: a. Irrevocably assign to Weld County (as a third party beneficiary) any and all claims that such subcontractor may have or which may thereafter accrue to the subcontractor under federal or state antitrust laws in connection with any goods or services provided by the subcontractor in carrying out the subcontractor's obligations to Contractor; b. Upon becoming aware that a third party has commenced a civil action on the subcontractor's behalf asserting an antitrust claim which has been assigned to Weld County hereunder, shall immediately advise in writing: (1) Such third party that the antitrust claim has been assigned to Weld County, and (2) Contractor and Weld County that such civil action is pending and of the date on which, in accordance with subparagraph b. (1) above, the subcontractor notified such third party that the antitrust claim had been assigned to Weld County; c. Take no action which will in any way diminish the value of the claims or rights assigned or dedicated to Weld County hereunder; and d. Promptly pay over to Weld County its proper share of any payment under an antitrust claim brought on the subcontractors behalf by any third party and which claim has been assigned or dedicated to Weld County pursuant hereto. I, acting in my capacity as officer of a bidder (bidders if a joint venture) do agree to the above assignment of antitrust claims. or company name or company name. Date Title Title weld Form#621 1120 24 I P a g e NOTICE OF AWARD To: Project Description: PUBLIC WORKS STORMWATER IMPROVEMENTS The project in general consists of the construction of seven water quality features, including five water quality ponds, one water quality swale, and one evaporation pond. Additionally, one oil/sand separator will be installed at the fuel site. The project also includes all associated drainage features including concrete pans, concrete curb and gutter, inlets, a manhole, underground culverts, outlet structures, concrete spillways, riprap spillways and riprap rundowns. It also involves the implementation of a Stormwater Management Plan and installation of temporary erosion control measures to prevent offsite discharge of pollutants during construction. The Owner has considered the Bid submitted by you for the above -described Work in response to its Invitation for Bids and Instructions to Bidders. You are hereby notified that your Bid has been accepted in the amount of or as shown in the Bid Schedule. You are required by the Instructions to Bidders to execute one original of the Agreement and furnish the required Performance Bond, Payment Bond and Certificates of Insurance within five (5) calendar days from the date of this Notice to you. If you fail to execute said Agreement and to furnish said Bonds within five (5) days from the date of this Notice, said Owner will be entitled to consider all your rights arising out of the Owner's acceptance of your bid as abandoned. The Owner will be entitled to such other rights as may be granted by law. You are required to return an acknowledged copy of this Notice of Award to the Owner. Dated this day of 2021 Weld County, Colorado, Owner By: ACCEPTANCE OF NOTICE Receipt of the above Notice of Award is hereby acknowledged by (Contractor) Dated this day of 2021 By: Title: 25 I P a g e ENT FOR CO :LD COUNTY THIS AGREEMENT is made and entered into this _ day of , 2021, by and between the Board of Weld County Commissioners, on behalf of the Department of Public Works, hereinafter referred to as "County," and , hereinafter referred to as "Contractor". WHEREAS, County desires to retain Contractor to perform construction services as required by County and set forth in the attached Exhibits; and WHEREAS, Contractor is willing to perform and has the specific ability, qualifications, and time to perform the required construction services to provide the services according to the terms of this Agreement; and WHEREAS, Contractor is authorized to do business in the State of Colorado and has the time, skill, expertise, and experience necessary to provide the equipment, materials and services as set forth below; NOW, THEREFORE, in consideration of the mutual promises and covenants contained herein, the parties hereto agree as follows: 1. Introduction. The terms of this Agreement are contained in the terms recited in this document and in the Exhibits, each of which forms an integral part of this Agreement and are incorporated herein. The parties each acknowledge and agree that this Agreement, including the attached Exhibits, define the performance obligations of Contractor and Contractor's willingness and ability to meet those requirements (the "Work"). If a conflict occurs between this Agreement and any Exhibit or other attached document, the terms of this Agreement shall control, and the remaining order of precedence shall be based upon order of attachment. Exhibit A consists of County's Request for Bid (RFB) as set forth in Bid Package No. B2100076". Exhibit B consists of Contractor's Response to County's Request for Bid. 2. Service or Work. Contractor agrees to procure the materials, equipment and/or products necessary for the Work and agrees to diligently provide all services, labor, personnel and materials necessary to perform and complete the Work described in the attached Exhibits. Contractor shall faithfully perform the Work in accordance with the standards of professional care, skill, training, diligence and judgment provided by highly competent Contractors performing construction services of a similar nature to those described in this Agreement. Contractor shall further be responsible for the timely completion and acknowledges that a failure to comply with the standards and requirements of Work within the time limits prescribed by County may result in County's decision to withhold payment or to terminate this Agreement. 3. Term. The term of this Agreement begins upon the date of the mutual execution of this Agreement and shall continue through and until Contractor's completion of the responsibilities described in the attached Exhibits. Both of the parties to this Agreement understand and agree that the laws of the State of Colorado prohibit County from entering into Agreements which bind County for periods longer than one year. This Agreement may be extended upon mutual written agreement of the Parties. In its sole discretion, the County, by the Director of the Department of Public Works or his or her designee, may extend the time for the Contractor to complete the service or work, by not more than thirty (30) days. Such extension shall not increase the compensation to be paid to the Contractor nor change any other term herein. 4. Termination; Breach; Cure. County may terminate this Agreement for its own convenience upon thirty (30) days written notice to Contractor. Either Party may immediately terminate this Agreement upon material breach of the other party, however the breaching party shall have fifteen (15) days after receiving such notice to cure such breach. Upon termination, County shall take possession of all materials, equipment, tools and facilities owned by County which Contractor is using, by whatever method it deems expedient; and, Contractor shall deliver to County all drawings, drafts, or other documents it has completed or partially completed under this Agreement, together with all other items, materials and documents which have been paid for by County, and these items, materials and documents shall be the property of County. Copies of work product that is incomplete at the time of termination shall be marked "DRAFT -INCOMPLETE." If this Agreement is terminated by County, Contractor shall be compensated for, and such compensation shall be limited to, (1) the sum of the amounts contained in invoices which it has submitted and which have been approved by the County; (2) the reasonable value to County of the services which Contractor 261 Page provided prior to the date of the termination notice, but which had not yet been approved for payment; and (3) the cost of any work which the County approves in writing which it determines is needed to accomplish an orderly termination of the work. County shall be entitled to the use of all material generated pursuant to this Agreement upon termination. Upon termination of this Agreement by County, Contractor shall have no claim of any kind whatsoever against the County by reason of such termination or by reason of any act incidental thereto, except for compensation for work satisfactorily performed and/or materials described herein properly delivered. 5. Extension or Modification. Any amendments or modifications to this agreement shall be in writing signed by both parties. No additional services or work performed by Contractor shall be the basis for additional compensation unless and until Contractor has obtained written authorization and acknowledgement by County for such additional services. Accordingly, no claim that the County has been unjustly enriched by any additional services, whether or not there is in fact any such unjust enrichment, shall be the basis of any increase in the compensation payable hereunder. In the event that written authorization and acknowledgment by the County for such additional services is not timely executed and issued in strict accordance with this Agreement, Contractor's rights with respect to such additional services shall be deemed waived and such failure shall result in non-payment for such additional services or work performed. In the event the County shall require changes in the scope, character, or complexity of the work to be performed, and said changes cause an increase or decrease in the time required or the costs to the Contractor for performance, an equitable adjustment in fees and completion time shall be negotiated between the parties and this Agreement shall be modified accordingly by Change Order. Any claims by the Contractor for adjustment hereunder must be made in writing prior to performance of any work covered in the anticipated Change Order. Any change in work made without such prior Change Order shall be deemed covered in the compensation and time provisions of this Agreement. 6. Compensation/Contract Amount. Upon Contractor's successful completion of the Work, and County's acceptance of the same, County agrees to pay an amount not to exceed $ , as set forth in Exhibits. No payment in excess of that set forth in the Exhibits will be made by County unless a Change Order authorizing such additional payment has been specifically approved by Weld County. If, at any time during the term or after termination or expiration of this Agreement, County reasonably determines that any payment made by County to Contractor was improper because the service for which payment was made did not perform as set forth in this Agreement, then upon written notice of such determination and request for reimbursement from County, Contractor shall forthwith return such payment(s) to County. Upon termination or expiration of this Agreement, unexpended funds advanced by County, if any, shall forthwith be returned to County. County will not withhold any taxes from monies paid to the Contractor hereunder and Contractor agrees to be solely responsible for the accurate reporting and payment of any taxes related to payments made pursuant to the terms of this Agreement. Unless expressly enumerated in the attached Exhibits, Contractor shall not be entitled to be paid for any other expenses (e.g. mileage). Notwithstanding anything to the contrary contained in this Agreement, County shall have no obligations under this Agreement after, nor shall any payments be made to Contractor in respect of any period after December 31 of any year, without an appropriation therefore by County in accordance with a budget adopted by the Board of County Commissioners in compliance with Article 25, Title 30 of the Colorado Revised Statutes, the Local Government Budget Law (C.R.S. 29-1-101 et. seq.) and the TABOR Amendment (Colorado Constitution, Article X, Sec. 20). 7. Independent Contractor. Contractor agrees that it is an independent contractor and that Contractor's officers, agents or employees will not become employees of County, nor entitled to any employee benefits (including unemployment insurance or workers' compensation benefits) from County as a result of the execution of this Agreement. Contractor shall be solely responsible for its acts and those of its agents and employees for all acts performed pursuant to this Agreement. 8. Subcontractors. Contractor acknowledges that County has entered into this Agreement in reliance upon the particular reputation and expertise of Contractor. Contractor shall not enter into any subcontractor agreements for the completion of this Work without County's prior written consent, which may be withheld in County's sole discretion. County shall have the right in its reasonable discretion to approve all personnel assigned to the Work during the performance of this Agreement and no personnel to whom County has an objection, in its reasonable discretion, shall be assigned to the Work. Contractor shall require each subcontractor, as approved by County and to the extent of the Work to be performed by the subcontractor, to be bound to Contractor by the terms of this Agreement, and to assume toward Contractor all the obligations and responsibilities which Contractor, by this Agreement, assumes toward County. County shall have the right (but not the obligation) to enforce the provisions of this Agreement against any subcontractor hired by Contractor and Contractor shall cooperate in such process. The Contractor shall be responsible for the acts and omissions of its agents, employees and subcontractors. 9. Ownership. All work and information obtained by Contractor under this Agreement or individual work order 271 Page shall become or remain (as applicable), the property of County. In addition, all reports, data, plans, drawings, records and computer files generated by Contractor in relation to this Agreement and all reports, test results and all other tangible materials obtained and/or produced in connection with the performance of this Agreement, whether or not such materials are in completed form, shall at all times be considered the property of the County. Contractor shall not make use of such material for purposes other than in connection with this Agreement without prior written approval of County. 10. Confidentiality. Confidential information of Contractor should be transmitted separately from non - confidential information, clearly denoting in red on the relevant document at the top the word, "CONFIDENTIAL". However, Contractor is advised that as a public entity, Weld County must comply with the provisions of the Colorado Open Records Act (CORA), C.R.S. 24-72-201, et seq., with regard to public records, and cannot guarantee the confidentiality of all documents. Contractor agrees to keep confidential all of County's confidential information. Contractor agrees not to sell, assign, distribute, or disclose any such confidential information to any other person or entity without seeking written permission from the County. Contractor agrees to advise its employees, agents, and consultants, of the confidential and proprietary nature of this confidential information and of the restrictions imposed by this Agreement. 11. Warranty. Contractor warrants that the Work performed under this Agreement will be performed in a manner consistent with the professional construction standards governing such services and the provisions of this Agreement. Contractor further represents and warrants that all Work shall be performed by qualified personnel in a professional manner, consistent with industry standards, and that all services will conform to applicable specifications. In addition to the foregoing warranties, Contractor is aware that all work performed on this Project pursuant to this Agreement is subject to a warranty period during which Contractor must correct any failures or deficiencies caused by Contractor's workmanship or performance. This warranty shall commence on the date of County's final inspection and acceptance of the Project, and shall continue for one year, or such greater time as specified in the attached Exhibits. 12. Acceptance of Services Not a Waiver. Upon completion of the Work, Contractor shall submit to County originals of all test results, reports, etc., generated during completion of this work. Acceptance by County of reports, incidental material(s), and structures furnished under this Agreement shall not in any way relieve Contractor of responsibility for the quality and accuracy of the construction of the project. In no event shall any action by County hereunder constitute or be construed to be a waiver by County of any breach of this Agreement or default which may then exist on the part of Contractor, and County's action or inaction when any such breach or default shall exist shall not impair or prejudice any right or remedy available to County with respect to such breach or default. No assent, expressed or implied, to any breach of any one or more covenants, provisions or conditions of the Agreement shall be deemed or taken to be a waiver of any other breach. Acceptance by the County of, or payment for, the Work completed under this Agreement shall not be construed as a waiver of any of the County's rights under this Agreement or under the law generally. 13. Insurance. Contractor must secure, before the commencement of the Work, the following insurance covering all operations, goods, and services provided pursuant to this Agreement, and shall keep the required insurance coverage in force at all times during the term of the Agreement, or any extension thereof, and during any warranty period. For all coverages, Contractor's insurer shall waive subrogation rights against County. a. Types of Insurance: Workers' Compensation/Employer's Liability Insurance as required by state statute, covering all the Contractor's employees acting within the course and scope of their employment. The policy shall contain a waiver of subrogation against the County. This requirement shall not apply when a Contractor or subcontractor is exempt under Colorado Workers' Compensation Act., AND when such Contractor or subcontractor executes the appropriate sole proprietor waiver form. Commercial General Liability Insurance including public liability and property damage covering all operations required by the Work. Such policy shall include minimum limits as follows: $1,000,000 each occurrence; $2,000,000 general aggregate; $2,000,000 products and completed operations aggregate; $1,000,000 Personal Advertising injury; $50,000 any one fire; and $5,000 Medical payment per person. Medical operations coverage shall be provided for a minimum period of one (1) year following final acceptance. Automobile Liability: Contractor shall maintain limits of $1,000,000 for bodily injury per person; $1 ,000,000 for bodily injury for each accident; and $1,000,000 for property damage applicable to all vehicles operating 281 Page both on County property and elsewhere, for vehicles owned, hired, and non -owned vehicles used in the performance of this Contract. Professional Liability (Errors and Omissions Liability): Contractor shall maintain limits of $1,000,000 Per Loss and $2,000,000 Annual Aggregate for both the Contractor and subcontractors where: (1) the Work includes Construction Surveying and/or Survey Monumentation and/or (2) plans, specifications, and submittals are required to be signed and sealed by the Contractor's or subcontractor's Professional Engineer including but not limited to (a) Shop drawings and working drawings as defined in subsection 105.25 of the Specifications, (b) Mix designs, (c) Contractor performed design work as required by the plans and Specifications, (d) Change Orders, or (e) Approved Value Engineering Proposals. The policy shall cover professional misconduct or lack of ordinary skill for those positions defined in the Scope of Services of this contract. Contractor shall maintain limits for all claims covering wrongful acts, errors and/or omissions, including design errors, if applicable, for damage sustained by reason of or in the course of operations under this Contract resulting from professional services. In the event that the professional liability insurance required by this Contract is written on a claims -made basis, Contractor warrants that any retroactive date under the policy shall precede the effective date of this Contract; and that either continuous coverage will be maintained or an extended discovery period will be exercised for a period of two (2) years beginning at the time work under this Contract is completed. Umbrella or Excess Liability Insurance: Contractor shall maintain limits of $1,000,000 and shall become primary in the event the primary liability policy limits are impaired or exhausted. The policy shall be written on an Occurrence form and shall be following form of the primary. Pollution Liability. Weld County requires this coverage whenever work at issue under this Contract involves potential pollution risk to the environment or losses caused by pollution conditions that may arise from the operations of the Contractor described in the Exhibits. The policy shall cover the Contractor's completed operations. Coverage shall apply to sudden and gradual pollution conditions resulting from the escape of release of smoke, vapors, fumes, acids, alkalis, toxic chemicals, liquids, or gases, natural gas, waste materials, or other irritants, contaminants, or pollutants (including asbestos). If the coverage is written on a claims -made basis, the Contractor warrants that any retroactive date applicable to coverage under the policy precedes the effective date of this Contract; and that continuous coverage will be maintained or an extended discovery period will be exercised for a period of three (3) years beginning from the time that work under this contract is completed. Minimum Limits: Per Loss $ 1,000,000 Aggregate $ 1,000,000 Builders' Risk Insurance or Installation Floater— Completed Value Basis: Unless otherwise provided in the attached Exhibits, the Contractor shall purchase and maintain, in a company or companies lawfully authorized to do business in Colorado, Builders' Risk Insurance in the amount of the initial contract amount as described in the attached Exhibits, plus the value of subsequent modifications, change orders, and cost of material supplied or installed by others, comprising total value of the entire Project at the site on a replacement cost basis without optional deductibles. (1) The policy must provide coverage from the time any covered property becomes the responsibility of the Contractor, and continue without interruption during construction, renovation, or installation, including any time during which the covered property is being transported to the construction installation site, or awaiting installation, whether on or off site. (2) Such Builders' Risk Insurance shall be maintained, unless otherwise provided in the Contract Documents or otherwise agreed in writing by all persons and entities who are beneficiaries of such insurance, until final payment has been made or until no person or entity other than the County 's has insurable interest in the property to be covered, whichever is later. 29 I P a g e (3) The Builders' Risk insurance shall include interests of the County and if applicable, affiliated or associate entities, the General Contractor, subcontractors and sub -tier contractors in the Project. (4) The Builders' Risk Coverage shall be written on a Special Covered Cause of Loss form and shall include theft, vandalism, malicious mischief, collapse, false -work, temporary buildings, transit, debris removal including demolition, increased cost of construction, architect's fees and expenses, flood (including water damage), earthquake, and if applicable, all below and above ground structures, piping, foundations including underground water and sewer mains, piling including the ground on which the structure rests and excavation, backfilling, filling, and grading. Flood damage coverage is not required for work within the floodway or 100 -year floodplain. Regardless, Contractor shall bear all risk associated with any and all loss resulting from flood events during construction. (5) The Builders' Risk shall include a Beneficial Occupancy Clause. The policy shall specifically permit occupancy of the building during construction. County Contractor shall take reasonable steps to obtain consent of the insurance company and delete any provisions with regard to restrictions within any Occupancy Clauses within the Builder's Risk Policy. The Builder's Risk Policy shall remain in force until acceptance of the project by the County. (6) Equipment Breakdown Coverage (a.k.a. Boiler & Machinery) shall be included as required by the Contract Documents or by law, which shall specifically cover insured equipment during installation and testing (including cold and hot testing). (7) The deductible shall not exceed $25,000 and shall be the responsibility of the Contractor for all covered perils within the required policy. For all general liability, excess/umbrella liability, and professional liability policies, if the policy is a claims - made policy, the retroactive date must be on or before the contract date or the first date when any goods or services were provided to County, whichever is earlier. b. Proof of Insurance: Contractor shall provide to County a certificate of insurance, a policy, or other proof of insurance as determined in County's sole discretion. Contractor shall provide a certificate of insurance naming Weld County, Colorado, its elected officials, and its employees as an additional named insured. c. Subcontractor Insurance: Contractor hereby warrants that all subcontractors providing services under this Agreement have or will have the above -described insurance prior to the commencement of the Work, or otherwise that they are covered by the Contractor's policies to the minimum limits as required herein. Contractor agrees to provide proof of insurance for all such subcontractors upon request by the County. d. No limitation of Liability: The insurance coverages specified in this Agreement are the minimum requirements, and these requirements do not decrease or limit the liability of Contractor. The County in no way warrants that the minimum limits contained herein are sufficient to protect the Contractor from liabilities that might arise out of the performance of the Work under by the Contractor, its agents, representatives, employees, or subcontractors. The Contractor shall assess its own risks and if it deems appropriate and/or prudent, maintain higher limits and/or broader coverages. The Contractor is not relieved of any liability or other obligations assumed or pursuant to the Contract by reason of its failure to obtain or maintain insurance in sufficient amounts, duration, or types. The Contractor shall maintain, at its own expense, any additional kinds or amounts of insurance that it may deem necessary to cover its obligations and liabilities under this Agreement. e. Certification of Compliance with Insurance Requirements. The Contractor stipulates that it has met the insurance requirements identified herein. The Contractor shall be responsible for the professional quality, technical accuracy, and quantity of all services provided, the timely delivery of said services, and the coordination of all services rendered by the Contractor and shall, without additional compensation, promptly remedy and correct any errors, omissions, or other deficiencies. 14. Indemnity. The Contractor shall defend, indemnify and hold harmless County, its officers, agents, and employees, from and against any and all injury, loss, damage, liability, suits, actions, claims, or willful acts or omissions of any type or character arising out of the Work done in fulfillment of the terms of this Agreement or on account of any act, claim or amount arising or recovered under workers' compensation law or arising out of the failure 30 1 Page of the Contractor to conform to any statutes, ordinances, regulation, judicial decision, or other law or court decree. The Contractor shall be fully responsible and liable for any and all injuries or damage received or sustained by any person, persons, or property on account of its performance under this Agreement or its failure to comply with the provisions of the Agreement. It is agreed that the Contractor will be responsible for primary loss investigation, defense and judgment costs where this contract of indemnity applies. In consideration of the award of this contract, the Contractor agrees to waive all rights of subrogation against the County its associated and/or affiliated entities, successors, or assigns, its elected officials, trustees, employees, agents, and volunteers for losses arising from the work performed by the Contractor for the County. A failure to comply with this provision shall result in County's right to immediately terminate this Agreement. 15. Non -Assignment. Contractor may not assign or transfer this Agreement or any interest therein or claim thereunder, without the prior written approval of County. Any attempts by Contractor to assign or transfer its rights hereunder without such prior approval by County shall, at the option of County, automatically terminate this Agreement and all rights of Contractor hereunder. Such consent may be granted or denied at the sole and absolute discretion of County. 16. Examination of Records. To the extent required by law, the Contractor agrees that any duly authorized representative of County, including the County Auditor, shall have access to and the right to examine and audit any books, documents, papers and records of Contractor, involving all matters and/or transactions related to this Agreement. The Contractor agrees to maintain these documents for three years from the date of the last payment received. 17. Interruptions. Neither party to this Agreement shall be liable to the other for delays in delivery or failure to deliver or otherwise to perform any obligation under this Agreement, where such failure is due to any cause beyond its reasonable control, including but not limited to Acts of God, fires, strikes, war, flood, earthquakes or Governmental actions. 18. Notices. County may designate, prior to commencement of work, its project representative ("County Representative") who shall make, within the scope of his or her authority, all necessary and proper decisions with reference to the project. All requests for contract interpretations, change orders, and other clarification or instruction shall be directed to County Representative. All notices or other communications made by one party to the other concerning the terms and conditions of this contract shall be deemed delivered under the following circumstances: a) personal service by a reputable courier service requiring signature for receipt; or b) five (5) days following delivery to the United States Postal Service, postage prepaid addressed to a party at the address set forth in this contract; or c) electronic transmission via email at the address set forth below, where a receipt or acknowledgment is required by the sending party; or Either party may change its notice address(es) by written notice to the other. Notice shall be sent to: Contractor Name: Position: Address: Address: E-mail: Phone: Weld County Public Works Name: Lyndsay Holbrook Position: MS4 Administrator Address: P.O. Box 758 1111 H Street, Greeley, CO. 80632 E-mail: Holbrook@weldgov.com Phone: 970-400-3788 311 Page 19. Compliance with Law. Contractor shall strictly comply with all applicable federal and State laws, rules and regulations in effect or hereafter established, including without limitation, laws applicable to discrimination and unfair employment practices. 20. Non -Exclusive Agreement. This Agreement is nonexclusive and County may engage or use other Contractors or persons to perform services of the same or similar nature. 21. Entire Agreement/Modifications. This Agreement including the Exhibits attached hereto and incorporated herein, contains the entire agreement between the parties with respect to the subject matter contained in this Agreement. This instrument supersedes all prior negotiations, representations, and understandings or agreements with respect to the subject matter contained in this Agreement. This Agreement may be changed or supplemented only by a written instrument signed by both parties. 22. Fund Availability. Financial obligations of the County payable after the current fiscal year are contingent upon funds for that purpose being appropriated, budgeted, and otherwise made available. Execution of this Agreement by County does not create an obligation on the part of County to expend funds not otherwise appropriated in each succeeding year. 23. Employee Financial Interest/Conflict of Interest — C.R.S. §§24-18-201 et seq. and §24-50-507. The signatories to this Agreement agree that to their knowledge, no employee of Weld County has any personal or beneficial interest whatsoever in the service or property which is the subject matter of this Agreement. 24. Survival of Termination. The obligations of the parties under this Agreement that by their nature would continue beyond expiration or termination of this Agreement (including without limitation, the warranties, indemnification obligations, confidentiality, and record keeping) shall survive any such expiration or termination. 25. Severability. If any term or condition of this Agreement shall be held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, this Agreement shall be construed and enforced without such provision, to the extent that this Agreement is then capable of execution within the original intent of the parties. 26. Governmental Immunity. No term or condition of this Agreement shall be construed or interpreted as a waiver, express or implied, of any of the immunities, rights, benefits, protections, or other provisions, of the Colorado Governmental Immunity Act §§24-10-101 et seq., as applicable now or hereafter amended. 27. No Third -Party Beneficiary. It is expressly understood and agreed that the enforcement of the terms and conditions of this Agreement, and all rights of action relating to such enforcement, shall be strictly reserved to the undersigned parties and nothing in this Agreement shall give or allow any claim or right of action whatsoever by any other person not included in this Agreement. It is the express intention of the undersigned parties that any entity other than the undersigned parties receiving services or benefits under this Agreement shall be an incidental beneficiary only. 28. Board of County Commissioners of Weld County Approval. This Agreement shall not be valid until it has been approved by the Board of County Commissioners of Weld County, Colorado or its designee. 29. Choice of Law/Jurisdiction. Colorado law, and rules and regulations established pursuant thereto, shall be applied in the interpretation, execution, and enforcement of this Agreement. Any provision included or incorporated herein by reference which conflicts with said laws, rules and/or regulations shall be null and void. In the event of a legal dispute between the parties, Contractor agrees that the Weld County District Court shall have exclusive jurisdiction to resolve said dispute. 30. Public Contracts for Services C.R.S. §8-17.5-101. Contractor certifies, warrants, and agrees that it does not knowingly employ or contract with an illegal alien who will perform work under this Agreement. Contractor will confirm the employment eligibility of all employees who are newly hired for employment in the United States to perform work under this Agreement, through participation in the E -Verify program of the State of Colorado program established pursuant to C.R.S. §8-17.5-102(5)(c). Contractor shall not knowingly employ or contract with an illegal alien to perform work under this Agreement or enter into a contract with a subcontractor that fails to certify with Contractor that the subcontractor shall not knowingly employ or contract with an illegal alien to perform work under this Agreement. Contractor shall not use E -Verify Program or State of Colorado program procedures to undertake pre -employment screening or job applicants while this Agreement is being performed. If Contractor obtains actual 32 I P a g e knowledge that a subcontractor performing work under this Agreement knowingly employs or contracts with an illegal alien Contractor shall notify the subcontractor and County within three (3) days that Contractor has actual knowledge that a subcontractor is employing or contracting with an illegal alien and shall terminate the subcontract if a subcontractor does not stop employing or contracting with the illegal alien within three (3) days of receiving notice. Contractor shall not terminate the contract if within three days the subcontractor provides information to establish that the subcontractor has not knowingly employed or contracted with an illegal alien. Contractor shall comply with reasonable requests made in the course of an investigation, undertaken pursuant to C.R.S. §8-17.5- 102(5), by the Colorado Department of Labor and Employment. If Contractor participates in the State of Colorado program, Contractor shall, within twenty days after hiring a new employee to perform work under the contract, affirm that Contractor has examined the legal work status of such employee, retained file copies of the documents, and not altered or falsified the identification documents for such employees. Contractor shall deliver to County, a written notarized affirmation that it has examined the legal work status of such employee and shall comply with all the other requirements of the State of Colorado program. If Contractor fails to comply with any requirement of this provision or of C.R.S. §8-17.5-101 et seq., County, may terminate this Agreement for breach, and if so terminated, Contractor shall be liable for actual and consequential damages. Except where exempted by federal law and except as provided in C.R.S. § 24-76.5-103(3), if Contractor receives federal or state funds under the contract, Contractor must confirm that any individual natural person eighteen (18) years of age or older is lawfully present in the United States pursuant to C.R.S. § 24-76.5-103(4), if such individual applies for public benefits provided under the contract. If Contractor operates as a sole proprietor, it hereby swears or affirms under penalty of perjury that it: (a) is a citizen of the United States or is otherwise lawfully present in the United States pursuant to federal law, (b) shall produce one of the forms of identification required by C.R.S. § 24- 76.5-101, et seq., and (c) shall produce one of the forms of identification required by C.R.S. § 24-76.5-103 prior to the effective date of the contract. 31. Public Contracts for Services C.R.S. §8-17-101. For public contracts in excess of $500,000 annually, or for public contracts for road or bridge construction in excess of $50,000, Contractor certifies, warrants, and agrees that Colorado labor shall be employed to perform at least eighty percent of the work under this Contract. "Colorado labor" means any person who is a resident of the state of Colorado at the time of the public works project, who can provide a valid Colorado driver's license, a valid Colorado state -issued photo identification, or documentation that he or she has resided in Colorado for the last thirty days. The County, in its sole discretion, may waive the eighty percent requirement if there is reasonable evidence to demonstrate insufficient Colorado labor is available to perform the work, and this requirement would create an undue burden that would substantially prevent the work from proceeding to completion. [This section shall not apply to any project which is funded in whole or in part with federal funds, or where otherwise contrary to federal law. In accordance with C.R.S. §8-17-107 and 2 C.F.R. §200.319(c), this section shall not apply if the Work is funded wholly or in part with federal funds.] 32. Attorney's Fees/Legal Costs. In the event of a dispute between County and Contractor, concerning this Agreement, the parties agree that each party shall be responsible for the payment of attorney fees and/or legal costs incurred by or on its own behalf. 33. Binding Arbitration Prohibited: Weld County does not agree to binding arbitration by any extra -judicial body or person. Any provision to the contrary in this Agreement or incorporated herein by reference shall be null and void. Acknowledgment. County and Contractor acknowledge that each has read this Agreement, understands it and agrees to be bound by its terms. Both parties further agree that this Agreement, with the attached Exhibits A and B, is the complete and exclusive statement of agreement between the parties and supersedes all proposals or prior agreements, oral or written, and any other communications between the parties relating to the subject matter of this Agreement. CONTRACTOR: By: Name: Title: 33 I P a g e Date: WELD COUNTY: ATTEST: BOARD OF COUNTY COMMISSIONERS Weld County Clerk to the Board WELD COUNTY, COLORADO BY: Deputy Clerk to the Board Steve Moreno, Chair 34 I P a g e PERFORMANCE BOND (PAGE 1 OF 2) PROJECT DESCRIPTION: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) KNOW ALL MEN BY THE PRESENTS; that (Name of Contractor) (Address of Contractor) hereinafter called Contractor, and a (Corporation, Partnership, or Individual) (Name of Surety) (Address of Surety) hereinafter called surety, are held and firmly bound unto Weld County, Colorado (Name of Owner) P.O. Box 758, 1111 H Street, Greeley, Colorado 80632 (Address of Owner) hereinafter called Owner, in the penal sum of Dollars, ($ ). in lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, successors and assigns, jointly and severally firmly by these presents. THE CONDITION OF THIS OBLIGATION is such that whereas, the Contractor entered into a certain Contract with the Owner, dated the day of 2021, a copy of which is hereto attached and made a part hereof for the construction of: PW STORMWATER IMPROVEMENTS PROJECT described in the Invitation for Bids, Bid No. B2100076. NOW THEREFORE, if the Contractor shall well, truly and faithfully perform its duties, all of the undertakings, covenants, terms, conditions, and agreements of said contract during the original term thereof, and any extensions thereof which may be granted by the Owner, with or without notice to the Surety and during the one year guaranty period, and if he shall satisfy all claims and demands incurred under such contract, and shall fully indemnify and save harmless the Owner from all costs and damages which it may suffer by reason of failure to do so, and shall reimburse and repay the Owner all outlay and expense which the Owner may incur in making good any default, then this obligation shall be void; otherwise to remain in force and effect. PROVIDED, FURTHER, that the said Surety for value received hereby stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract or to the Work to be performed thereunder of the Specifications accompanying the same shall in any way affect its obligation on this Bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the contract or to the Work or to the Specifications. 35 I P a g e PERFORMANCE BOND (PAGE 2 OF 2) PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) PROVIDED, FURTHER, that no final settlement between the Owner and the Contractor shall abridge the right of any beneficiary hereunder, whose claim may be unsatisfied. IN WITNESS WHEREOF, this instrument is executed in two (2) counterparts, each one of which shall be deemed an original, this day of , 2021. Contractor By (Contractor) Secretary (SEAL) (Address) ATTEST: (Surety) Secretary (SEAL) By Attorney -in -Fact (Address) NOTE: Date of Bond must not be prior to date of Contract. If Contractor is Partnership, all partners should execute Bond. IMPORTANT: Surety companies executing Bonds must appear on the Treasury Department's most current list (Circular 570 as amended) and be authorized to transact business in the State where the Project is located. 36 I Page LABOR & MATERIALS PAYMENT BOND (PAGE 1 OF 2) PROJECT: PW STORMWATER IMRPROVEMENTS KNOW ALL MEN BY THE PRESENTS; that (Name of Contractor) (Address of Contractor) hereinafter called Contractor, and a (Corporation, Partnership, or Individual) (Name of Surety) (Address of Surety) hereinafter called surety, are held and firmly bound unto Weld County. Colorado (Name of Owner) P.O. Box 758. 1111 H Street, Greeley, Colorado 80632 (Address of Owner) hereinafter called Owner, in the penal sum of Dollars ($ in lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, successors and assigns, jointly and severally firmly by these presents. THE CONDITION OF THIS OBLIGATION is such that whereas, the Contractor entered into a certain Contract with the Owner, dated the day of , 2021, a copy of which is hereto attached and made a part hereof for the construction of: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) NOW, THEREFORE, if the Contractor shall promptly make payment to all persons, firms, Subcontractors, and corporations furnishing materials for or performing labor in the prosecution of the Work provided for in such contract, and any authorized extension or modification thereof, including all amounts due for materials, lubricants, oil, gasoline, repairs on machinery, equipment and tools, consumed or used in connection with the construction of such Work, and all insurance premiums on said Work, and for all labor, performed in such Work whether by Subcontractor or otherwise, then this obligation shall be void,; otherwise to remain in full force and effect. PROVIDED, FURTHER, that the said Surety for value received hereby stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract or to the Work to be performed thereunder of the Specifications accompanying the same shall in any way affect its obligation on this Bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the Contract or to the Work or to the Specifications. 371Page LABOR & MATERIALS PAYMENT BOND (PAGE 2 OF 2) PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) PROVIDED, FURTHER, that no final settlement between the Owner and the Contractor shall abridge the right of any beneficiary hereunder, whose claim may be unsatisfied. IN WITNESS WHEREOF, this instrument is executed in two (2) counterparts, each one of which shall be deemed an original, this day of , 2021. Contractor By (Contractor) Secretary (SEAL) (Witness as to Contractor) (Address) ATTEST: (Surety) Secretary (SEAL) By Witness as to Surety Attorney -in -Fact (Address) NOTE: Date of Bond must not be prior to date of Contract. If Contractor is Partnership, all partners shall execute Bond. IMPORTANT: Surety companies executing Bonds must appear on the Treasury Department's most current list (Circular 570 as amended) and be authorized to transact business in the State where the Project is located. 38 I P a g e NOTICE TO PROCEED To: Date: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) You are hereby notified to commence Work in accordance with the Agreement dated The date of completion of all Work is, therefore By Lyndsay Holbrook, MS4 Administrator Weld County, Colorado, Owner ACCEPTANCE OF NOTICE Receipt of the above Notice to Proceed is hereby acknowledged by: (Contractor) Dated this day of , 2021. By. Title 39 I P a g e CHANGE ORDER NO. (EXAMPLE) Date: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) Owner: Weld County, Colorado Contractor: The following change is hereby made to the Contract Documents: CHANGE TO CONTRACT PRICE: Original Contract Price: Current Contract Price adjusted by previous Change Order: The Contract Price due to this Change Order will be increased by: The New Contract Price, including this Change Order, will be: CHANGE TO CONTRACT TIME: The Contract Time will be increased by _ The date for completion of all Work will be RECOMMENDED: Owner Representative: Lyndsay Holbrook, MS4 Administrator APPROVALS: CONTRACTOR: Name: Title: WELD COUNTY: ATTEST: Weld County Clerk to the Board BY: Deputy Clerk to the Board calendar days. Date: Date: BOARD OF COUNTY COMMISSIONERS WELD COUNTY, COLORADO Steve Moreno, Chair 40 I P a g e CERTIFICATE OF SUBSTANTIAL COMPLETION Contractor: Contract For: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) Contract Dated: This Certificate of Substantial Completion applies to all Work that has been sufficiently completed in accordance with the Contract Documents and as modified by any change orders agreed to by the parties, so that the County and/or Owner can utilize the project for the use for which it was intended, except for the following specified parts thereof: The Work to which this Certificate applies has been inspected by authorized representatives of the Owner, Contractor and Engineer, and that Work is hereby declared to be substantially complete in accordance with the Contract Documents on Date of Substantial Completion A list of items to be completed or corrected is attached hereto. This list may not be all-inclusive, and the failure to include an item in it does not alter the responsibility of the Contractor to complete all the Work in accordance with the Contract Documents. The items in the list shall be completed or corrected by the Contractor within days of the above date of Substantial Completion. To be effective, this form must be signed by the Owner, the Engineer, and the Contractor. Owner: Engineer: Contractor: 41 1 Page Date: Date: Date: LIEN WAIVER (GENERAL CONTRACTOR) TO: Weld County Public Works ATTN: Lyndsay Holbrook, MS4 Administrator P.O. Box 758 Greeley, Colorado 80632 For a valuable consideration paid by the Board of County Commissioners of Weld County, the receipt and sufficiency of which is hereby acknowledged, the undersigned hereby, releases unto Weld County and to its heirs, executors, administrators or assigns, all rights of the undersigned to claim a mechanic's lien for material heretofore furnished for use in and for labor heretofore performed upon the construction, alteration, addition to or repair of the structures or improvements described in the Contract Documents as: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) Contractor: (If no legal description is shown following the description of Project, we acknowledge that the foregoing is an adequate description of the real properties and improvements inasmuch as the foregoing is the description given in the Contract Documents which govern the performance of the Work for which consideration has been received.) In executing this release, we certify that all claims for labor, or materials, or both, furnished or performed on our behalf by our material suppliers or subcontractors have been paid or that satisfactory arrangement for payment has been made. We agree to defend Weld County from any and all claims on the part of our material suppliers, laborers, employees, servants and agents or subcontractors arising from our Work on the Project, and we further agree to reimburse the Board of County Commissioners of Weld County for any and all costs, including reasonable attorney fees, which they may incur as a result of such claims. Contractor By: Title: Date: STATE OF COUNTY OF The foregoing instrument was acknowledged before me this day of , 2021, by My commission expires: Notary Publ 42 I P a g e LIEN WAIVER (SUBCONTRACTORS) PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) To All Whom It May Concern: WHEREAS, the undersigned has been employed by (A) to furnish labor and materials for (B) work, under a contract (C) the improvement of the premises described as (D) County of State of the Owner. NOW, THEREFORE, this of which day of , 2021, for and in consideration of the sum of (E) Dollars paid simultaneously herewith, the receipt whereof is hereby acknowledged by the undersigned, the undersigned does hereby waive and release any lien rights to, or claim of lien with respect to and on said above described premises, and the improvements thereon, and on the monies or other considerations due or to become due from the Owner, on account of labor, services, material, fixtures, apparatus or machinery heretofore or which may hereafter be furnished by the undersigned to or for the above described premises by virtue of said contract. (F) (Name of sole ownership, corporation or partnership) (Affix Corporate seal here) (Signature of Authorized Representative) INSTRUCTIONS FOR FINAL WAIVER (A) Person or firm with whom you agreed to furnish either labor, or services, or materials, or both. (B) Fill in nature and extent of work; strike the word labor or the word materials if not in your contract. (C) If you have more than one contract on the same premises, describe the contract by number if available, date and extent of work. (D) Furnish an accurate enough description of the improvement and location of the premises so that it can be distinguished from any other property. (E) Amount shown should be the amount actually received and equal to total amount of contract as adjusted. (F) If waiver is for a corporation, corporate name should be used, corporate seal affixed and title of officer signing waiver should be set forth; if waiver is for a partnership, the partnership name should be used, partner should sign and designate himself as partner. 431Page NOTICE OF FINAL ACCEPTANCE TO: Date: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) This is to inform you that the above referenced job, has been satisfactorily completed in accordance with the Contract Documents and is hereby accepted. Final payment will be made on or about Final acceptance does not relieve the Contractor of the minimum one (1) year guarantee on all work and materials incorporated into this Project. Such guarantee shall begin on the date of this acceptance. By: ACCEPTANCE OF NOTICE Lyndsay Holbrook, MS4 Administrator Weld County, Colorado, Owner Receipt of the above Notice to Proceed is hereby acknowledged by: Dated this day of By: (Contractor) Title: 2021. 44 I P a g e Weld County Project Special Provisions Section: Title Revision Date. Page No. N/A Notice to Bidders October 1, 2021 46 N/A Commencement and Completion of Work October 1, 2021 47 N/A Force Account Items October 1, 2021 48 N/A Utilities Coordination October 1, 2021 49 101 Definition of Terms October 1, 2021 50-51 102 Bidding Requirements and Conditions October 1, 2021 52 103 Consideration of Proposals October 1, 2021 53 104 Scope of Work October 1, 2021 54-55 105 Control of Work October 1, 2021 56-64 106 Control of Material October 1, 2021 65-66 107 Legal Relations and Responsibility to Public October 1, 2021 67-68 108 Prosecution and Progress October 1, 2021 69-71 110 Contractor Coordination with Fuel Site PM October 21, 2021 72 111 Contractor Coordination with PW Operations October 21, 2021 73 201 Clearing and Grubbing October 1, 2021 74 202 Removal and Trimming of Trees October 1, 2021 75-76 202 Removal of Structures and Obstructions October 1, 2021 77-79 203 Excavation and Embankment October 1, 2021 80-82 206 Excavation and Backfill for Structures October 1, 2021 83-84 207 Topsoil October 1, 2021 85-90 208 Erosion Control October 1, 2021 91-96 209 Watering and Dust Palliatives October 1, 2021 97 304 & 703 Aggregate Base Course October 1, 2021 98-99 401 Plant Mix Pavements October 1, 2021 100 403 Hot Mix Asphalt October 1, 2021 101-103 411 Bituminous Materials October 1, 2021 104 412 & 705 Portland Cement October 1, 2021 105-111 420 & 712 Geosynthetics October 1, 2021 112-115 506 Buried Riprap October 1, 2021 116-118 506 Soil Riprap October 1, 2021 119-121 601 Structural Concrete October 1, 2021 122-135 602 Reinforcing Steel October 1, 2021 136 603 Reinforced Concrete Pipe October 1, 2021 137 607 Chain Link Fencing October 1, 2021 138 45 I P a g e October 1, 2021 1 WELD COUNTY NOTICE TO BIDDERS The proposal guaranty shall be a certified check, cashier's check, or bid bond in the amount of 5 percent of the Contractor's total bid. Pursuant to subsections 102.04 and 102.05, it is recommended that bidders on this project review the work site and plan details with an authorized Department representative. Prospective bidders shall contact one of the following listed authorized Department representatives at least 24 hours in advance of the time they wish to go over the project. Information regarding the project may be obtained from the following authorized representatives. Lyndsay Holbrook, MS4 Administrator Weld County Public Works Department 1111 H Street Greeley, CO 80632 Office Phone: 970-400-3788 lholbrook(aD-weldgov.com Don Dunker, P.E. County Engineer Weld County Public Works Department 1111 H Street Greeley, CO 80632 Office Phone: 970-400-3749 ddunker(weldgov.com The above referenced individuals are the only representatives with authority to provide any information, clarification, or interpretation regarding the plans, specifications, and any other contract documents or requirements. A mandatory pre -bid conference call will be held on Wednesday, November 10, 2021 beginning at 9:00 a.m. The conference call information is provided below. Join on your computer or mobile app Click here to join the meeting Or call in (audio only) Phone Number: 1 720-439-5261 Conference ID: 240 738 215# Bids will be accepted only from pre -qualified bidders who attend the mandatory pre -bid conference. Since the project is entirely within CDOT's ROW, bidders must be on CDOT's prequalified list. Questions received from bidders along with Weld County responses will be posted on the BidNet Direct website as they become available. If the bidder has a question or requests clarification that involves the bidder's innovative or proprietary means and methods, phasing, scheduling, or other aspects of construction of the project, the Project Engineer will address the question or clarification. The Engineer will keep the bidder's innovation confidential and will not share this information with other bidders. The Engineer will determine whether questions are innovative or proprietary in nature. If the Engineer determines that a question does not warrant confidentiality, the bidder may withdraw the question. If the bidder withdraws the question, the Engineer will not answer the question and the question will not be documented on the website. If the bidder does not withdraw the question, the question will be answered, and both the question and answer will be posted on the website. If the Engineer agrees that a question warrants confidentiality, the Engineer will answer the question, and keep both question and answer confidential. Weld County will keep a record of both question and answer in their confidential file. All questions shall be directed to the contacts listed above no later than 7:00 A.M. Monday of the week of bid opening. Final questions and answers will be posted no later than 5:00 P.M. Tuesday of the week of bid opening. END OF SECTION 46 I Page October 1, 2021 1 WELD COUNTY COMMENCEMENT AND COMPLETION OF WORK The Contractor shall commence work under the Contract as required in the "Notice to Proceed" letter and will complete all work by May 31, 2022 unless the period for completion is extended otherwise by the County. The work is a completion date contract. One calendar day of contract time will be assessed for each calendar day from the date that Contract time starts excluding Saturdays, Sundays, and holidays (except with written approval). No weather days or less than full time charges days will be granted in this contract. END OF SECTION 47 I P a g e October 1, 2021 1 WELD COUNTY FORCE ACCOUNT ITEMS DESCRIPTION This special provision contains the County's estimate for force account items included in the Contract. The estimate amounts marked with an asterisk will be added to the total bid to determine the amount of the performance and payments bonds. Force Account work shall be performed as directed by the Engineer. BASIS OF PAYMENT Payment will be made in accordance with subsection 109.04. Payment will constitute full compensation for all work necessary to complete the item. Force account work valued at $5,000 or less, that must be performed by a licensed journeyman in order to comply with federal, state, or local codes, may be paid for after receipt of an itemized statement endorsed by the Contractor. Force Account Item Estimated Quantity Amount *F/A Minor Contract Revisions F/A $200,000 *F/A Erosion Control F/A $50,000 *F/A Coordinate with Fuel Site F/A $9,000 *F/A Coordinate with Snow Operations F/A $21,000 * Force account items shall be included in the bid total and the performance bonds. *F/A Minor Contract Revisions — This work consists of minor work authorized and approved by the engineer, which is not included in the contract drawings or specifications and is necessary to accomplish the scope of work for this contract. *F/A Erosion Control — This work consists of erosion control work authorized and approved by the engineer which is not included in the contract drawings or specifications and is necessary to accomplish the scope of work for this contract. All items shall be pre -approved by the engineer prior to installation or they will be no cost to the project. *F/A Coordinate with Fuel Site PM and/or Contractor — This work consists of coordinating with the Fuel Site Project Manager (Weld County) and/or the Contractor associated with the remodel of the Fuel Site so that construction activities do not interfere with one another. All coordination shall be approved by the engineer prior to usage. *F/A Coordinate with Public Works Operations Manager — This work consists of coordinating with the Public Works Operations Manager (Weld County) so that snow removal operations are not impeded in any way by construction activities. All coordination shall be approved by the engineer prior to usage. END OF SECTION 48 I P a g e October 1, 2021 I WELD COUNTY UTILITIES COORDINATION The work described in these plans and specifications requires coordination between the Contractor and the utility companies in accordance with subsection 105.10 in conducting their respective operations as necessary to complete the utility work with minimum delay to the project. The known utilities are shown on the Contract Drawings. However, additional unknown utilities may exist within the project limits, and the location of known utilities is estimated and the accuracy of shown utility locations is not guaranteed. The Contractor shall comply with Senate Bill 18-067 and Article 1.5 of Title 9, CRS ("Excavation Requirements") when excavation or grading is planned in the area of underground utility facilities. The Contractor shall notify all affected utilities at least two (2) business days, not including the day of notification, prior to commencing such operations. The Contractor shall contact the Utility Notification Center of Colorado (UNCC) at 811 or 1-800-922- 1987 to have locations of UNCC registered lines marked by member companies. All other underground facilities shall be located by contacting the respective company. Utility service laterals shall also be located prior to beginning excavating or grading. Known utilities within the limits of this project are: UTILITY CONTACT PHONE EMAIL Xcel Energy (OH Elec.) Bob Anderson 303-571-7241 bob.anderson@xcelenergy.com Chad Shell 303-571-2775 chad.shell@excelenergy.com Century Link Justin Metzler 720-578-3710 justin.metzler@centurylink.com North Weld County Water Josh Mathews 970-356-3020 joshm@nwcwd.org The work described in these plans and specifications requires coordination between the Contractor and the utility companies in accordance with subsection 105.11 in conducting their respective operations as necessary to complete the utility work with minimum delay to the project. The locations of buried lines shown on the plans and described herein were obtained from the best available information but are not to be considered complete as to location or identification of all utilities that could be encountered. The Contractor shall comply with Article 1.5 of Title 9, CRS ("Excavation Requirements") when excavation or grading is planned in the area of underground utility facilities. The Contractor shall notify all affected utilities at least two (2) business days, not including the day of notification, prior to commencing such operations. The Contractor shall contact the Utility Notification Center of Colorado (UNCC) at (8-1-1) or 1-800-922-1987 to have locations of UNCC registered lines marked by member companies. All other underground facilities shall be located by contacting the respective company. Utility service laterals shall also be located prior to beginning excavating or grading. The Contractor shall verify the location of all utilities, underground pipelines, agricultural irrigation lines, etc. prior to the start of any digging using non-destructive methods to verify utility clearances. If utilities were relocated during the design and ROW acquisition portion of the project, the Contractor shall be responsible for verifying the depth and position of the relocated facilities. For buried lines crossing laterally in the project area, at a minimum, the Contractor shall obtain pothole information on the utility at each edge of ROW and at each flow line of the ditch. For buried lines running parallel to the project area, at a minimum, the Contractor shall obtain pothole information on the utility at 50 -foot intervals throughout the project area. The pothole information including horizontal and vertical position shall be stamped and signed by a registered PLS licensed in the State of Colorado. All costs (except potholing) are incidental to the foregoing requirements will not be paid for separately but shall be included in the work. Potholing will be paid at the unit prices provided in the bid. No monetary compensation will be made to the Contractor for delays or any other issues related to utility conflicts. END OF SECTION 491 Page October 1, 2021 1 REVISION OF SECTION 101 DEFINITION OF TERMS Technical Specifications related to construction materials and methods for the work required under this contract shall consist of the "Colorado Department of Transportation, Standard Specifications for Road and Bridge Construction" dated 2019. Where the Contract Documents, Weld County Project Special Provisions, CDOT Project Special Provisions, or the CDOT Specifications contradict one another, the more stringent specification shall apply. Weld County at its sole discretion shall determine which specification is more stringent. All references (as applicable) to State, CDOT, and the Department of Transportation shall be defined as Weld County acting directly or through its duly authorized representative or agent. Certain terms utilized in the Specifications referred to in the paragraph above shall be interpreted to have different meanings within the scope of this Contract. A summary of redefinitions follows: Subsection 101.02 shall include the following: "CDOT Resident Engineer" shall mean an employee designated as such by the Weld County Public Works Department. "Department" shall mean the Weld County Public Works Department. "Engineer" shall mean the Weld County Public Works Director or designated representative Holidays recognized by Weld County are: New Year's Day (Friday, December 31, 2021) President's Day (Monday, February, 21, 2022) Memorial Day (Monday, May 30, 2022) Independence Day (Monday & Tuesday, July 4 & 5, 2022) Labor Day (Monday, September 5, 2022) Veterans Day (Friday, November 11, 2022), Thanksgiving (Thursday & Friday, November 25 & 26, 2022) Christmas (Friday and Monday,; December 23'& 26, 2022) When one of the holidays falls on a Sunday, the following Monday shall be considered a holiday. When one of the holidays falls on a Saturday, the preceding Friday shall be considered a holiday. "Inspector" shall mean an employee designated as such by the Weld County Public Works Department. "Pre -construction Conference" shall mean a meeting of Weld County personnel, Contractor project personnel, and other stakeholders held prior to the beginning of construction at which topics pertinent to the successful prosecution of the work are discussed. "Project Engineer" shall mean an employee designated as such by the Weld County Public Works Department. "Region Transportation Director" shall mean Weld County Public Works Director or designated representative. "Roadway Prism" shall be defined as the prism of embankment extending from the toe of embankment slope to the opposite toe of embankment slope. 50 I P a g e October 1, 2021 2 REVISION OF SECTION 101 DEFINITION OF TERMS "State" shall mean Weld County. "Subcontractor" shall be defined as an individual, firm, corporation, or other legal entity to whom the Contractor sublets part of the Contract. A subcontractor shall include an individual, firm, or corporation who meets one or both of the following criteria: a. Establishes a fabricating process or facility exclusively for the use of the Project, whether on or off the site of work per 29 CFR 5.2(l) (1) and 29 CFR 5.2(l) (2). b. Performs work that is incorporated within the Project limits. " Supplier" shall mean an individual, firm, or corporation who meets one or both of the following criteria: a. Fabricates or processes a material not on the site of work per 29 CFR 5.2(l) (3). b. Delivers material directly to the project. In both cases, the material shall be intended for permanent incorporation into the worksite. "Substantial completion" shall mean the completion of all payable work as shown on the pay application. Only non - payable or minor items, as determined by Weld County in its sole discretion, may be placed on the punch list. END OF SECTION 51IPage October 1, 2021 I REVISION OF SECTION 102 BIDDING REQUIREMENTS AND CONDITIONS Section 102 of the Standard Specifications is hereby revised for this project as follows Delete Subsection 102.02 and replace with the following: 102.02 Contents of Proposal Forms. The Department will publish bidding opportunities to prospective bidders at www.bidnetdirect.com. The forms on this website will state the location and description of the contemplated construction and will show the estimate of the various quantities and types of work to be performed or materials to be furnished and will have a schedule of items for which unit bid prices are invited. The proposal form will state the time in which the project must be completed, the amount of the proposal guaranty, and the date, time, and place of the opening of proposals. "All bidders on the projects shall submit bids by the following method: Bid Delivery to Weld County: Emailed bids are required. Bids may be emailed to: bids weldgov.com. Emailed bids must include the following statement on the email: "I hereby waive my right to a sealed bid". An email confirmation will be sent when we receive your bid/proposal. Bids shall be in PDF format and should be less than 25MB in size. If bids are larger than 25 MB, please contact the Engineer. Please call Purchasing at 970-336-7225 if there are any questions. The plans, specifications, and other documents designated in the proposal form, shall be considered a part of the proposal. Subsection 102.05 shall include the following: Weld County does not warrant any CAD data. This information is not considered to be part of the Contract and is provided to the Contractor as a courtesy. If the bidders use the CAD data in preparing a proposal or planning and prosecuting the work, it is at their own risk, and bidders are responsible for all conclusions, deductions, and inferences drawn from the CAD data. The CAD data shall not be used in relation to any request for additional time or compensation. After the proposals have been opened, the winning bidder may obtain electronic sets of plans and special provisions (PDF, CAD files) at no cost. Subcontractors and suppliers may obtain plans from the successful bidder. END OF SECTION 52 I P a g e October 1, 2021 I REVISION OF SECTION 103 CONSIDERATION OF PROPOSALS (LCPTRACKER NOT USED) Section 103 of the Standard Specifications is hereby revised for this project as follows: Delete subsection 103.01 and replace with the following: 103.01 Consideration of Proposals. After the proposals (bids) are opened and read, they will be evaluated and the Contract awarded or rejected in accordance with the "Rules" referenced in subsection 102.01 The responsible bidder determined to have submitted the Proposal which provides the best value to Weld County shall submit a completed CONTRACTORS PERFORMANCE CAPABILITY STATEMENT, Form 605, and a completed ASSIGNMENT OF ANTITRUST CLAIMS, Form 621 to the Award Officer prior to 4:30 P.M. on the fifth calendar day after the bid opening. Failure to submit the Forms 605 and 621 may result in the denial of award to the apparent low responsible bidder and forfeiture of the proposal guaranty. END OF SECTION 531Page October 1, 2021 I REVISION OF SECTION 104 SCOPE OF WORK Section 104 of the Standard Specifications is hereby revised for this project as follows: Delete Subsection 104.02(a) and replace as follows: (a) Differing Site Conditions. It is the County's expectation to complete this project with no change orders resulting in additional cost unless such change orders are initiated by the County. Change orders for differing site conditions will be entertained by the County in the event of extraordinary circumstances. However, the County is under no obligation to approve said change orders. No cost change orders, reduction in cost change orders, and County initiated change orders may occur. The Contractor shall not be entitled to a change order for Differing Site Conditions. By way of example, Differing Site Conditions not eligible for a change order include but are not limited to: 1. Encountering groundwater. 2. Discovery of debris (buried or unburied within the ROW). 3. Existing asphalt thicknesses that are different than expected. 4. Lack of on -site appropriate strength materials. 5. Increased costs due to relocations of utilities and/or oil and gas facilities. 6. Increased costs due to ROW or easement acquisitions. 7. Discovery of septic systems, leach fields, or other ancillary wastewater infrastructure. 8. Discovery of unknown irrigation facilities, landscape irrigation systems, or water wells. 9. On -site soils not suitable for structural foundations or embankments. 10. Unsuitable materials excavation. 11. High water levels in the river due to stormwater runoff or snowmelt. The Contractor shall be expected to manage the risks associated with flows in the river in order to meet the project completion date. During the progress of work, if extraordinary conditions are discovered, the party discovering such conditions shall promptly notify the other party in writing of the specific conditions before the site is disturbed and the affected work is performed. The Contractor shall bear the burden of proving that a Differing Site Condition is an extraordinary circumstance, and that the Contractor could not have reasonably worked around the condition so as to avoid additional costs. Each request for a change order relating to a differing site condition shall be accompanied by a statement signed by a qualified professions setting forth all relevant assumptions made by the Contractor with respect to the condition of the Site, justifying the basis for such assumptions, explaining exactly how the existing conditions are eligible for a change order under the terms of the Contract, and stating the efforts undertaken by the Contractor to find alternative design or construction solutions to eliminate or minimize the problem and the associated costs. Upon written notification, the Engineer will investigate the conditions, and determine if an extraordinary condition exists that will cause an increase or decrease in the cost or time required for the performance of any work under the Contract, an adjustment, excluding anticipated profits will be made and the Contract modified in writing accordingly. The Engineer will notify the Contractor of the determination whether or not an adjustment of the Contract is warranted. No Contract adjustment which results in a benefit to the Contractor will be allowed unless the Contractor has provided the required written notice. Subsections 104.02(c)(1) and 104.02(c)(2) shall be revised as follows: (1) When the character of the work as altered differs materially in kind or nature from that involved or included in the original proposed construction, and (2) When a major item of work is increased in excess of 150 percent or decreased below 25 percent of the original contract quantity. Any allowance for an increase in quantity shall apply only to that portion in excess of 150 percent of original contract item quantity, or in case of a decrease below 25 percent, to the actual amount of work performed. A major item is defined to be any item having an original contract value in excess of 10 percent of the original contract amount. 541 Page October 1, 2021 2 REVISION OF SECTION 104 SCOPE OF WORK Delete Subsection 104.05 and replace with the following: The Contractor shall not excavate or remove any Material from within the roadway, which is not within the grading limits, as indicated by the slope and grade lines, without authorization from the Inspector. Subsection 104.06 shall be revised to include the following: Any excess soil materials generated from excavation shall become the property of the Contractor and shall be hauled to a disposal site approved by the Engineer.' Excess soil materials including topsoil generated from the project shall not be disposed of within the project area unless written authorization is provided by the Engineer. Backfill areas shall be graded such that the final grades are similar to the final grades as described in the Contract Drawings, unless otherwise directed by the Engineer. The Contractor shall be responsible for removing all construction debris and trash from the jobsite on a daily basis. Any construction debris and trash which may be washed away shall be located, removed, and disposed of away from the site at a certified landfill location. Trash and debris shall be collected and disposed of at no additional cost to the project. Any petroleum products accidentally spilled or leaked shall be cleaned up and disposed of immediately. The Contractor shall be held liable for any damages resulting from the spillage or leakage of any hazardous materials within the project area. Subsection 104.07 paragraph 5, starting with "Net cost savings..." shall be deleted and replaced as follows: Net cost savings on VECPs shall be split equally between the Contractor and Weld County as determined in the Basis of Payment section of this specification. VECPs shall be submitted prior to the start of construction activities relating to the VECP. Subsection 104.07(d)(2) shall be deleted and replaced as follows: 2. For all VECPs, the incentive payment shall be calculated as follows: (gross cost of deleted work) — (gross cost of added work) = (gross savings) (gross savings) — (Contractor's engineering costs) — (Weld County's engineering costs) = (net savings) Contractor's total incentive = (net savings)/2 Lost opportunity shall not be considered part of the calculations. The Contractor's engineering costs will be reimbursable only for outside consultant costs that are verified by certified billings. The Contractor's engineering costs will be reimbursable only for outside consultant costs that are verified by certified billings. Weld County's engineering costs shall be actual consultant costs billed to Weld County and extraordinary in-house personnel labor costs. These labor costs will be calculated at the fixed amount of $100.00 per hour per employee. Project personnel assigned to the field office or who work on the project on a regular basis shall not be included in Weld County's portion of the costs. END OF SECTION 55 1 Page October 1, 2021 I REVISION OF SECTION 105 CONTROL OF WORK Section 105 of the Standard Specifications is hereby revised for the project as follows: Subsection 105.01 shall be revised to include the following: Weld County has the authority by written order to suspend the Work wholly or in part for the reasons delineated in the Contract Documents. All employees shall have the skill and experience and any licenses or certifications required to perform the Work assigned to them. If the County determines in its sole discretion that any Person employed by the Contractor or by any Subcontractor is not performing the Work properly and skillfully, then, at the written request of the County, the Contractor or such Subcontractor shall remove such Person and such Person shall not be re-employed on the Project without the prior written approval of the County. If the Contractor or the Subcontractor fails to remove such Person(s) or fails to furnish skilled and experienced personnel for the proper performance of the Work, then the County may, in its sole discretion, suspend the affected portion of the Work by delivery of written notice of such suspension to the Contractor. Such suspension shall in no way relieve the Contractor of any obligation contained in the Contract Documents or entitle the Contractor to a Change Order. Weld County in its sole discretion may require the Contractor to replace project management staff (Project Manager, Superintendent, Project Engineer, etc.) for any reason. This will also apply to all the Contractor's subcontractors. At the written request of the County, the Contractor or such Subcontractor shall remove such Person and such Person shall not be re-employed on the Project without the prior written approval of the County. If the Contractor or the Subcontractor fails to remove such Person(s), then the County may, in its sole discretion, suspend the affected portion of the Work by delivery of written notice of such suspension to the Contractor. Such suspension shall in no way relieve the Contractor of any obligation contained in the Contract Documents or entitle the Contractor to a Change Order. Subsection 105.02 shall include the following paragraphs prior to Subsection 105.02(a): Provisions regarding plans, shop drawings, working drawings and construction documents are set forth in the Contract Documents. For the purposes of review, working drawings are the same as shop drawings and shall be reviewed in the same manner. Subsection 105.02(f), paragraph 3 shall be revised to include the following: The Contractor shall provide "As -Constructed" drawings prior to final payment. The As -Constructed drawings shall be completed in accordance with Section 121.2.3 of the CDOT Construction Manual and CDOT Procedural Directive 508.1 - Professional Engineer's Stamp. The As -Constructed drawings shall be stamped, signed, and dated by a licensed professional engineer or professional land surveyor registered in the State of Colorado. References in Section 121.2.3 of the CDOT Construction Manual to the Project Engineer shall apply to the Contractor. Delete Subsection 105.03, paragraph 5 and replace with the following: When the Engineer or Inspector finds the materials furnished, work performed, or the finished product are not in conformity with the Contract Documents, and Weld County determines, in its sole discretion, that it has resulted in an inferior or unsatisfactory product, the Work or Materials shall be removed and replaced or otherwise corrected by and at the expense of the Contractor. Delete Subsection 105.03, paragraph 7 and replace with the following: Materials will be sampled and tested by the Contractor in accordance with the sampling and testing schedules and procedures contained in the Contract Documents and in CDOT's Field Materials Manual. The quantity represented by five consecutive random samples will constitute a lot whenever production schedules and material continuity permit. The Engineer may establish a lot consisting of the quantity represented by any number of consecutive random samples from one to seven inclusive when it is necessary to represent short production runs, significant Material changes, or other unusual characteristics of the Work. Tests that are determined to have sampling or 56 I P a g e October 1, 2021 2 REVISION OF SECTION 105 CONTROL OF WORK testing errors will not be used. The Contractor will not have the option of accepting a price reduction in lieu of producing material that complies with the Contract Documents. Continued production of nonconforming Material will not be permitted. Material, which is obviously defective, may be isolated and rejected by Weld County without regard to sampling sequence or location within a lot. Rejected material shall be removed at the Contractor's expense. Subsection 105.03 the two paragraphs following the TABLE OF PRICE REDUCTION FACTORS and starting with "If P is less ..." shall be deleted and replaced as follows: If P is a negative number quantity, the material will be accepted as being in conformity. In cases where one or more elements show a positive P value, such positive values will be added and the resulting sum will be used to determine the total P value. If the total P value is between 0 (zero) and 25, the Engineer may require correction or may accept the material at a reduced price. If P is greater than 25, the Engineer may: (1) require complete removal and replacement with specification material at no additional cost to the Department; (2) require corrective action to bring the material into conformity at no additional cost to the Department; or (3) where the finished product is found to be capable of performing the intended purpose and the value of the finished product is not affected, permit the Contractor to leave the material in place with an appropriate price reduction to be based on engineering evaluation but not to be less than that which have occurred had a reduction been made where P=25. If the P for aggregate gradation for items 206, 304, or the gradation of hydrated lime for item 403 is 0 (zero) or greater the reduction will apply to the contract price multiplied by the Multipliers (M) listed in the following table: Subsection 105.03(c) shall be added and shall include the following: (c) Conformity to the contract of embankment construction shall be determined in accordance with the following: 1. Process Control Plan. The Contractor shall be responsible for Process Control (PC) for all embankment material on this project. The Contractor shall submit a written Process Control Plan (PCP), including a methods statement, to the Engineer for acceptance. The PCP shall include but not be limited to the following: (1) Maximum lift thickness of eight inches in accordance with subsection 203.06 or as directed. (2) Compaction equipment capable of obtaining the specified compaction. (3) Water trucks with an adequate distribution system that will apply water evenly. (4) List of all inspection and materials testing forms and procedures utilized by the Contractor. (5) Adherence to Table 106-4 requiring minimum testing frequency. The Contractor shall submit the PCP at least five working days prior to the start of the work. The Engineer's review of the PCP will not exceed two working days. Work shall not begin until the PCP has been accepted in writing, unless otherwise approved. 2. Documentation. The Contractor shall maintain current records of process control operation activities, and tests performed. These records shall be in the form shown in the PCP, and shall include as a minimum, the Contractor or subcontractor, the number of personnel working, weather conditions, type of equipment being used, delays and their cause, and deficiencies along with corrective action taken. Such records shall cover both conforming and defective or deficient features. Additional documentation to the Engineer shall include all daily test results, daily inspection reports, daily non-compliance reports, and monthly certification reports. Copies of these records and a statement that work incorporated in the project complies with the Contract shall be submitted to the Engineer prior to payment for the work or upon request. Monthly certification reports shall be stamped with the seal of a Professional Engineer registered in Colorado. Failure to provide the Engineer with the necessary documentation will result in the suspension of payments on embankment until the documentation has been completed and accepted by the Engineer. Weld County Owner Acceptance (OA) documentation shall not be used as supporting documentation for the Contractors certification. 57 I P a g e October 1, 2021 3 REVISION OF SECTION 105 CONTROL OF WORK Weld County shall be responsible for OA and Independent Assurance Testing (IAT). Delete subsection 106.05 and replace with the following: 106.05 Sampling and Testing of Hot Mix Asphalt. All hot mix asphalt, Item 403, except Hot Mix Asphalt (Patching) and temporary pavement shall be tested in accordance with the following program of process control testing and acceptance testing: The Contract will specify whether process control testing by the Contractor is mandatory or voluntary. (a) Process Control Testing. 1. Mandatory Process Control. When process control testing is mandatory the Contractor shall be responsible for process control testing on all elements and at the frequency listed in Table 106-1. Process control testing shall be performed at the expense of the Contractor. After completion of compaction, in -place density tests for process control shall be taken at the frequency shown in Table 106-1. The results shall be reported in writing to the Engineer on a daily basis. Daily plots of the test results with tonnage represented shall be made on a chart convenient for viewing by the Engineer. All of the testing equipment used for in -place density testing shall conform to the requirements of acceptance testing standards, except nuclear testing devices need not be calibrated on the Department's calibration blocks. For elements other than in -place density, results from process control tests need not be plotted, or routinely reported to the Engineer. This does not relieve the Contractor from the responsibility of performing such testing along with appropriate plant monitoring as necessary to assure that produced material conforms to the applicable specifications. Process control test data shall be made available to the Engineer daily. (b) Acceptance Testing. Acceptance testing is the responsibility of the Department. For acceptance testing the Department will determine the locations where samples or measurements are to be taken and as designated in Section 403. The maximum quantity of material represented by each test result, the elements, the frequency of testing and the minimum number of test results will be in accordance with Table 106-1. The location or time of sampling will be based on the stratified random procedure as described in CP 75. Acceptance sampling and testing procedures will be in accordance with the Schedule for Minimum Materials Sampling, Testing and Inspection in the Department's Field Materials Manual. Samples for project acceptance testing shall be taken by the Contractor in accordance with the designated method. The samples shall be taken in the presence of the Engineer. Where appropriate, the Contractor shall reduce each sample to the size designated by the Engineer. The Contractor may retain a split of each sample which cannot be included as part of the Contractor's process control testing. Dispute of the acceptance test results in accordance with CP-17 will not be allowed unless the CP-13 Check Test Program has been successfully completed. All materials being used are subject to inspection and testing at any time prior to or during incorporation into the work. (c) Stability Verification Testing. After the mix design has been approved and production commences, the Department will perform a minimum of three stability verification tests to verify that the field produced HMA conforms to the approved mix design: The test frequency shall be one per day unless otherwise directed by the Engineer. The test results will be evaluated, and the Contractor shall make adjustments if required in accordance with the following: 1. The minimum value for stability will be the minimum specified in Table 403-1 of the specifications. There will be no tolerance limit. 58 I P a g e October 1, 2021 4 REVISION OF SECTION 105 CONTROL OF WORK 2. Quality Level. Calculate a QL for stability. If the QL for stability is less than 65, then production shall be halted, and the Contractor shall submit a written proposal for a mix design revision to the Engineer. The Engineer shall give written approval to the proposed mix design revision before production continues. After a new or revised mix design is approved, three additional stability tests will be performed on asphalt produced with the new or revised mix design. The test frequency shall be one per day unless altered by the Engineer. If the stability QL is less than 65, then production shall be halted until a new mix design has been completed and approved using plant produced material or the Contractor shall submit a written proposal for a mix design revision to the Engineer. The Engineer shall give written approval to the proposed mix design revision before production continues. 3. New or Revised Mix Design. Whenever a new or revised mix design is used and production resumes, three additional stability field verification tests shall be performed, and the test results evaluated in accordance with the above requirements. The test frequency shall be one per day unless altered by the Engineer. 4. Field Verification Process Complete. When the field verification process described above is complete and production continues, the sample frequency will revert back to 1 per 10,000 tons. (d) Mix Verification Testing. After the mix design has been approved and production commences, the Department will perform a minimum of three volumetric verification tests for each of the following elements to verify that the field produced hot mix asphalt conforms to the approved mix design: (1) Air Voids (2) Voids in Mineral Aggregate (VMA) (3) Asphalt Content (AC). The test frequency shall be one per day unless altered by the Engineer. The test results will be evaluated, and the Contractor shall make adjustments if required in accordance with the following: 1. Target Values. The target value for VMA will be the average of the first three volumetric field test results on project produced hot mix asphalt or the target value specified in Table 403-1 and Table 403-2 of the specifications, whichever is higher. The target value for VMA will be set no lower than 0.5 percent below the VMA target on Form 43 prior to production. The target values for the test element of air voids and AC shall be the mix design air voids and mix design AC as shown on Form 43. Tolerance Limits. The tolerance limits for each test element shall be: AC ± 0.3 percent Air Voids ± 1.2 percent VMA ± 1.2 percent 2. Quality Levels. Calculate an individual QL for each of the elements using the volumetric field verification test results. If the QL for VMA or AC is less than 65 or if the QL for air voids is less than 70, the production shall be halted, and the Contractor shall submit a written proposal for a mix design revision to the Engineer. Production shall only commence upon receipt of written approval from the Engineer of the proposed mix design revision. 591Page October 1, 2021 5 REVISION OF SECTION 105 CONTROL OF WORK After a new or revised mix design is approved, three additional volumetric field verification tests will be performed on asphalt produced with the new or revised mix design. The test frequency shall be one per day unless altered by the Engineer. If the QL for VMA or AC is less than 65 or the QL for the test element of air voids is less than 70, then production shall be halted until a new mix design has been completed in accordance with CP 52 or CP 54, a new Form 43 issued, and the Contractor demonstrates that he is capable of producing a mixture meeting the verification requirements in accordance with A or B below: A. The Contractor shall produce test material at a site other than a COOT project. The Contractor shall notify the Engineer a minimum of 48 hours prior to the requested test. The location and time of the test are subject to the approval of the Engineer, prior to placement. Three samples will be tested for volumetric properties. If the QL for VMA or AC is equal or greater than 65 and the QL for the element of air voids is equal or greater than 70, full production may resume or; B. The Contractor may construct a 500 ton test strip on the project. Three samples in the last 200 tons will be tested for volumetric properties. After construction of the test section, production shall be halted until the testing is complete and element QLs are calculated. If the QL for VMA or AC is equal or greater than 65 or the QL for the element of air voids is equal or greater than 70, full production may resume. If the QL for VMA or AC is less than 65 or the QL for the element of air voids is less than 70, the material shall be removed and replaced at no cost to the Department. The time count will continue, and any delay to the project will be considered to have been caused by the Contractor and will not be compensable. The costs associated with mix designs shall be solely at the Contractor's expense. If the Contractor fails to verify the new mix design in accordance with A or B, then production shall be halted until a new mix design has been completed in accordance with CP 52 or CP 54, a new Form 43 issued, and the Contractor demonstrates they are capable of producing a mixture meeting the verification requirements in accordance with A or B. 3. New or Revised Mix Design. Whenever a new or revised mix design is used and production resumes, three additional volumetric field verification tests shall be performed, and the test results evaluated in accordance with the above requirements. The test frequency shall be one per day unless altered by the Engineer. 4. Field Verification Process Complete. When the field verification process described above is complete and production continues, the sample frequency will revert back to a minimum of 1/10,000 tons. The Engineer has the discretion to conduct additional verification tests at any time. (e) Reference Conditions. Three reference conditions can exist determined by the Moving Quality Level (MQL). The MQL will be calculated in accordance with the procedure in CP 71 for Determining Quality Level (QL). The MQL will be calculated using only acceptance tests. The MQL will be calculated on tests 1 through 3, then tests 1 through 4, then tests 1 through 5, then thereafter on the last five consecutive test results. The MQL will not be used to determine pay factors. The three reference conditions and actions that will be taken are described as follows: 1. Condition green will exist for an element when an MQL of 90 or greater is reached, or maintained, and the past five consecutive test results are within the specification limits. 2. Condition yellow will exist for all elements at the beginning of production or when a new process is established because of changes in materials or the job -mix formula, following an extended suspension of work, or when the MQL is less than 90 and equal to or greater than 65. Once an element is at condition green, if the MQL falls below 90 or a test result falls outside the specification limits, the condition will revert to yellow or red as appropriate. 601Page October 1, 2021 3. Condition red will exist for any element when the MQL is less than 65. The Contractor shall be notified immediately in writing and the process control sampling and testing frequency increased to a minimum rate of 1/250 tons for that element. The process control sampling and testing frequency shall remain at 1/250 tons until the process control QL reaches or exceeds 78. If the QL for the next five process control tests is below 65, production will be suspended. If gradation is the element with MQL less than 65, the Department will test one randomly selected sample in the first 1250 tons produced in condition red. If this test result is outside the tolerance limits, production will be suspended. (This test result will not be included as an acceptance test.) After condition red exists, a new MQL will be started. Acceptance testing will stay at the frequency shown in Table 106-1. After three acceptance tests, if the MQL is less than 65, production will be suspended. Production will remain suspended until the source of the problem is identified and corrected. Each time production is suspended, corrective actions shall be proposed in writing by the Contractor and approved in writing by the Engineer before production may resume. Upon resuming production, the process control sampling and testing frequency for the elements causing the condition red shall remain at 1/250 tons. If the QL for the next five process control tests is below 65, production will be suspended again. If gradation is the element with MQL less than 65, the Department will test one randomly selected sample in the first 1250 tons produced in condition red. If this test result is outside the tolerance limits, production will be suspended. Table 106-1 SCHEDULE FOR MINIMUM SAMPLING AND TESTING* Element Process Control Acceptance Theoretical Maximum 1.1000 tons, 1/1000 tons, Specific Gravity minimum 1/day minimum 1/day Gradation 1/Day(t 112000 tons In -Place Density 1/500 tons 1/500 tons (2) !UV II `ice feeti1fr t_of �s> 1/2000 tons or Aggregate Percent 1/Day if less than 1/2000 tons Moisture (3) 2000 tons Notes: (1) Process control tests for gradation are not required if less than 250 tons are placed in a day. The minimum number of process control tests for gradation shall be one test for each 1000 tons or fraction thereof. (2) The minimum number of in -place density tests for acceptance will be 5. (3) Not to be used for incentive/disincentive pay. Test according to CP-33 and report results from Form 106 or Form 565 on Form 6. (4) Verified per Contractor's PC Plan. *None of the test results will be used for incentive /disincentive pay but will be used in the evaluation of materials acceptance. See also section 105.05 Conformity to the Contract of Hot Mix Asphalt for applicable conditions. Delete Table 105-5, "V" Factors and Incentive Payments — Flexural Strength Criteria and replace with the following: 61IPage October 1, 2021 7 REVISION OF SECTION 105 CONTROL OF WORK Table 105-5 "V" FACTORS AND INCENTIVE PAYMENTS FLEXURAL STRENGTH CRITERIA Element V factor Maximum Incentive Lower Tolerance Limit, Plan Value Payment TL Flexural Strength 50 psi 3.00 % 650 psi 650 psi Pavement Thickness 0.4 inch 2.00 % Plan Thickness -0.4" Plan Thickness Subsection 105.07(b)(1) shall be revised as follows: Delete the last sentence of the twelfth paragraph and replace with the following: "Within 24 hours after each profile is collected, the Contractor shall submit the data electronically to the Engineer and Inspector." Delete Subsection 105.07(e), Paragraph 1 and replace with the following: The Department will analyze the SA testing for acceptance and indicate areas requiring corrective work in accordance with subsection 105.07(b). The Engineer, at their sole discretion, shall determine the most effective corrective action outlined in items 1-3 below. The Contractor shall provide a detailed method statement describing the corrective actions to be taken for the corrective work. Corrective work shall not be performed until the method statement has been approved in writing by the Engineer. The Contractor shall perform corrective work in the areas indicated by the Department based on the SA testing. Delete Subsection 105.07(e)(3), paragraph 5 and replace with the following: For HMA pavements, the entire ground area of the final pavement surface shall be covered in a chip seal conforming to Section 409 of the Specifications when grinding is complete and after final SA testing is complete. In instances where diamond grinding is minimal, the Engineer, at their sole discretion, may allow the final pavement surface to be covered with a Tack Coat conforming to Section 407 of the Specifications when grinding is complete and after final SA testing is complete. Delete Subsection 105.09 and replace with the following: These specifications, the supplemental specifications, the plans, special provisions, and all supplementary documents are essential parts of the Contract, and a requirement occurring in one is as binding as though occurring in all. They are intended to be complementary and to describe and provide for a complete work. In the event of a discrepancy, the order of precedence is as follows: (a) Contract Documents including Exhibits, Addenda, and Appendices (b) Special Provisions i. Weld County Special Provisions ii. CDOT Project Special Provisions iii. CDOT Standard Special Provisions iv. CDOT Field Materials Manual (Latest Edition) v. CDOT Construction Manual (Latest Edition) (c) CDOT Standard Specifications (d) Plans i. Detailed Plans ii. Standard Plans Calculated dimensions will govern over scaled dimensions 62 I P a g e October 1, 2021 8 REVISION OF SECTION 105 CONTROL OF WORK Where the Contract Documents, Project Special Provisions, or the CDOT Specifications contradict one another, the more stringent specification shall apply. Notwithstanding the foregoing, in the event of conflicting requirements involving any requirement within the Contract Documents, Project Special Provisions, or the CDOT Specifications, the County shall have the right to determine, in its sole discretion, which requirement(s) apply. The Contractor shall request the County's determination respecting the order of precedence among conflicting provisions promptly upon becoming aware of any such conflict. The Contractor shall not take advantage of any apparent error or omission in the Contract. Should it appear that the work to be done or any matter relative thereto is not sufficiently detailed or explained in the Contract Documents, the Contractor shall immediately notify the Project Manager in writing for further written explanations as may be necessary and shall conform to the explanation provided. The Contractor shall promptly notify the Project Manager of all errors which it may discover in the Contract Documents and shall obtain specific instructions in writing regarding any such error before proceeding with the work affected thereby. The Project Manager will make corrections and interpretations as necessary to fulfill the intent of the Contract. The fact that the Contract Documents omit or mis-describe any details of any work which is necessary to carry out the intent of the Contract Documents, that are customarily performed under similar circumstances, shall not relieve the Contractor from performing such omitted work or mis-described details of the work, and they shall be performed as if fully and correctly set forth and described in the Contract Documents, without entitlement to a change order except as specifically allowed. Subsection 105.10 shall be amended to include the following: The Contractor shall be responsible for providing agendas, attendance lists, and meeting minutes for all meetings including but not limited to weekly progress meetings, pre -construction meetings, pre -pour meetings, pre -pave meetings, pre -environmental meetings, etc. Sample meeting agendas are provided in CDOT's Construction Manual. The sample meeting agendas shall be modified as necessary to contain project specific information. The Contractor shall provide copies of the meeting agendas to the Engineer a minimum of 24 hours prior to the meeting for review. During the meeting, the Contractor shall lead the meeting and take attendance and meeting minutes. Meeting minutes shall be generated by the Contractor and shall be provided to the Engineer within 72 hours for review and acceptance. Failure to provide a full-time competent superintendent with the authorization to act for the Contractor on the project shall result in a payment deduction as outlined in the Weld County Revision to Section 108.09, Liquidated Damages Table. Furthermore, failure to provide a full-time competent superintendent shall be grounds for suspension of the Project until such time as a full-time competent superintendent is provided by the Contractor. The Engineer shall have the sole discretion of determining when/if to assess the payment deduction. The payment deduction shall be documented on a Form 105, Speed Memo. CONTRACT TIME WILL CONTINUE IN THE EVENT OF A WORK SUSPENSION CAUSED BY LACK OF FURNISHING A FULL-TIME COMPETENT SUPERINTENDENT SATISFACTORY TO THE COUNTY. Subsection 105.22 shall be revised to include the following: The Colorado Department of Transportation (CDOT) will not participate in the resolution process for any claims filed by the Contractor. Weld County will be the responsible party to such claims. Subsection 105.24 shall be amended as follows: Delete all references to CDOT and replace with Weld County. Delete the fourth paragraph and replace with the following: Non -binding arbitration or litigation proceedings must commence within 180 -calendar days of the Chief Engineer's decision, absent written agreement otherwise by both parties. 63 I P a g e October 1, 2021 9 REVISION OF SECTION 105 CONTROL OF WORK Delete the fifth paragraph and replace with the following: The venue for all unresolved disputes with an aggregate value $15,000 or less shall be the County Court for Weld County. Delete Subsection 105.24(f) and replace with the following: If the Contractor disagrees with the Chief Engineer's decision, the Contractor may initiate de novo litigation or non- binding arbitration to finally resolve the claim that the Contractor submitted to Weld County. Such litigation or arbitration shall be strictly limited to those claims that were previously submitted and decided in the contractual dispute and claims processes outlined herein. This does not preclude the joining in one litigation or arbitration of multiple claims from the same project provided that each claim has gone through the dispute and claim process specified in subsections 105.22 through 105.24. The parties may agree, in writing, at any time, to pursue some other form of alternative dispute resolution. Any offer made by the Contractor or the Department at any stage of the claims process, as set forth in this subsection, shall be deemed an offer of settlement pursuant to Colorado Rule of Evidence 408 and therefore inadmissible in any litigation or arbitration. If the Contractor selected litigation, then de novo litigation shall proceed in accordance with the Colorado Rules of Civil Procedure and the proper venue is the Colorado State District Court in and for Weld County, unless both parties agree to the use of arbitration. If the Contractor selected non -binding arbitration, or if both parties subsequently agreed to merit binding arbitration, arbitration shall be governed by the modified version of ARBITRATION PROVIDER'S Construction Industry Arbitration Rules which follow. Pursuant to the modified arbitration rules (R35 through R39), the arbitrators shall issue a decision with regard to entitlement and a non -binding decision with regard to quantum. If either party disagrees with the decision on quantum, the disagreeing party may seek a trial de novo in Weld County District Court with regard to quantum only. END OF SECTION 64 I P a g e October 1, 2021 1 REVISION OF SECTION 106 CONTROL OF MATERIAL Section 106 of the Standard Specifications is hereby revised for this project as follows: Subsection 106.01, paragraph 4 shall include the following: Weld County projects which are not CDOT funded shall be exempt from this requirement. The Bid Documents shall identify if the project is CDOT funded. Subsection 106.03 shall include the following: Testing of embankment construction shall conform to the following: (a) The supervisor responsible for the direct supervision for the process control sampling and testing shall be identified in the PCP and be qualified according to the requirements of CP-1 0 (Note: this will require a PE or a NICET Level III certification). (b) The technicians taking samples and performing tests must be qualified according to requirements of CP 10 (Note: this will require WAQTC qualification). The project verification sampling and testing procedures shown in the CDOT Field Materials Manual under the Frequency Guide Schedule for Minimum Materials Sampling, Testing and Inspection shall be used for the elements shown in Table 106-1. TABLE 106-1 EXCAVATION AND EMBANKMENT TESTING SCHEDULE Minimum Testing Frequency Element Minimum Testing Frequency Contractor's Process Control CDOT verification Testing None Required Soil Survey See CDOT Field Materials Classification Manual for Frequency 1 per soil type Moisture — Density Curve 1 per soil type 1 per 1,000 cubic yards In -Place Density 1 per 2,000 cubic yards or fraction thereof. or fraction thereof. 1 per 300 cubic yards In -Place Density when within 100 ft. 1 per 500 cubic yards or fraction thereof. of Bridge Approach(s). or fraction thereof. 1 per 5,000 cubic yards 1 Point Check 1 per 10,000 cubic yards or fraction thereof. or fraction thereof. Qualifications for testing and personnel are contained in Section 203, Chapter 200 of the CDOT Field Materials Manual, CP-10, CP 13, CP 15, and CP 80, and the CDOT Inspectors Checklist. Subsection 106.05, paragraph 2 shall be deleted and replaced with the following: For this project, Contractor process control testing of the hot mix asphalt is mandatory. Subsection 106.05 shall include the following: (h) Sampling and testing of small quantities. At the Engineer's discretion, materials listed below may be accepted without further sampling and testing on the basis of visual examination, provided the quantity is less than stated and the source has recently furnished or is currently furnishing similar material found to be satisfactory under normal CDOT sampling and testing procedures. Gradation acceptance shall be used unless otherwise approved by the Engineer. Item 403 - Hot Mix Asphalt: 500 Tons or less, visually inspect and document in project file, all tests >500 Tons or more, See QA Testing Frequency Guide in CDOT Field Materials Manual normal minimum testing 65 J P a g e October 1, 2021 2 REVISION OF SECTION 106 CONTROL OF MATERIAL Material test results indicating non-conformance with project requirements when tested in small quantity frequency, will be price reduced according to subsection 105.05 for the quantity that the sample represents. Additional Assurance testing (Voids, Lottman) may be performed on samples if test results on gradation and/or asphalt content indicate problems in mix properties. Material will be rejected or the Engineer will require a written corrective action by the Contractor when Percent Air Voids are not within 2.5-6.5% or the Lottman susceptibility (CPL -5109 Method B) is less than 75%. Reduction in testing and sampling in no way relieves contractor of submitting construction method statements, quality control plans or supplying specification materials. For this project, Contractor process control testing of hot mix asphalt is mandatory. Subsection 106.11(a) shall include the following: Weld County projects which are not CDOT funded shall be exempt from this requirement. The Bid Documents shall identify if the project is CDOT funded. Add Subsection 106.14 Trade Names, Approved Equals, or Substitutes. In order to establish a basis of quality, certain processes, types of machinery and equipment, or kinds of materials may be specified either by description or process or by designating a manufacturer by name and referring to that brand or product designation or by specifying a kind of material. It is not the intent of the specifications to exclude other processes, equipment or materials of equal value, utility, or merit. Whenever a process is designated, or a manufacturer's name, brand or item designation is given, or whenever a process or material covered by patent is designated or described, it shall be understood that the words "or approved equal" follow such name, designation, or description, whether in fact they do so or not. In order to be considered an "approved equal" the item shall meet or exceed the specifications for the designated item specifications in all categories. If it is desirable to furnish items of equipment by manufacturers other than those specified as a substitute after the Contract is executed, the Contractor shall secure approval prior to placing a purchase order or furnishing the same. If the proposal includes a list of equipment, materials, or articles for which the Contractor must name the manufacturer at the time of submission of the bid, no substitutions therefore will be permitted after a proposal has been accepted without the express consent of the Owner. END OF SECTION 66 I Page October 1, 2021 1 REVISION OF SECTION 107 LEGAL RELATIONS AND RESPONSIBILITY TO PUBLIC Section 107 of the Standard Specifications is hereby revised for the project as follows: Subsection 107.06 shall be revised to include the following: The Contractor and any subcontractor shall not require any laborer or mechanic employed in performance of the Contract to work in surroundings or under working conditions which are unsanitary, hazardous, or dangerous to his health or safety, as determined under construction safety and health standards (Rules and Regulations of the Federal Occupational Safety and Health Act of 1970 (OSHA) and as amended). All facilities and work conditions shall comply with the Colorado and Local Health Department Regulations and with OSHA requirements. Delete Subsection 107.15(b) and replace with the following: When the project has CDOT or Federal funding, the insurance certificates shall name "Weld County, Colorado, its officers, and employees" and CDOT as additionally insured parties. Depending upon the funding source, it may be necessary to include additional insured parties. Completed operations additional insured coverage shall be on endorsements CG 2010 11/85, CG 2037, or equivalent. Coverage required of the Contract will be primary over any insurance or self-insurance program carried by Weld County. When the project has no State or Federal funding, the insurance certificates shall name "Weld County, Colorado, its officers, and employees" as an additional insured party. . Depending upon the funding source, it may be necessary to include additional insured parties. Completed operations additional insured coverage shall be on endorsements CG 2010 11/85, CG 2037, or equivalent. Coverage required of the Contract will be primary over any insurance or self-insurance program carried by Weld County. Subsection 107.17 shall be revised to include the following before the first paragraph: When working in a waterway, the Contractor shall assess and understand the risk of working within waterways. Such risks include but are not limited to floods, high groundwater, and fluctuation in flows. The Contractor shall be responsible for constructing and maintaining all temporary facilities within the waterway such as cofferdams and diversion of channel flows. Such work shall be subsidiary to other items of work. Subsection 107.17 — Delete the fourth paragraph beginning with "Loss, injury, or damage to the work..." and replace with the following: Loss, injury, or damage to the work due to unforeseeable causes beyond the control of and without fault or negligence of the Contractor, including but not restricted to acts of God, such as flood, earthquake, tornado, or other cataclysmic phenomenon or nature shall be restored by the Contractor at no cost to the County. Subsection 107.19 shall be revised to include the following: The Contractor shall be required to obtain permission to conduct any work, store materials or stockpiles, or park any construction equipment or vehicles on private property. The Contractor shall conduct their work within the right- of-way and easement boundaries shown on the Contract Drawings. If working in the County right-of-way, the Contractor shall obtain a right-of-way permit from the Public Works Right -of -Way Permitting Technician, 970-304- 6496. The Contractor's attention is directed to this subsection: Subsection 107.25 shall be revised to include the following prior to the first sentence: The requirements as called out in this subsection will be strictly enforced. 67IPage October 1, 2021 2 REVISION OF SECTION 107 LEGAL RELATIONS AND RESPONSIBILITY TO PUBLIC If the area of disturbance for the project is less than one acre, Subsection 107.25 (c) shall be deleted and replaced with the following: A Colorado Discharge Permit System Stormwater Construction Permit (CDPS-SCP) is not required for this project. The Engineer will coordinate with CDOT as necessary prior to initiating partial or final acceptance of the stormwater construction work, including soil conditioning and seeding for permanent stabilization. Unsatisfactory and incomplete erosion control work will be identified in this walkthrough and will be summarized by the Engineer in a punch list. If the area of disturbance for the project is greater than one acre, Subsection 107.25(c), paragraph one shall be deleted and replaced with the following: The Colorado Discharge Permit System Stormwater Construction Permit (CDPS-SCP) shall be obtained by the Contractor. The Contractor and Weld County will be co-permittees. The Contractor shall coordinate with Weld County to become the Operator permittee of the respective permit upon award of the Contract. The Contractor shall provide a copy of permit certification as the Operator to the Engineer prior to or at the Pre -construction Conference. No work shall begin until the CDPS-SCP permit with Owner and Operator has been approved by CDPHE. A copy of the permit shall be placed in the project SWMP. The Contractor shall be responsible for complying with the applicable requirements of this permit. Per 107.25(d)(2), should any fines be levied by CDPHE, the Contractor shall be responsible for all such fines. The Contractor shall provide an Erosion Control Supervisor (ECS) for this project. END OF SECTION 68 I P a g e October 1, 2021 1 REVISION OF SECTION 108 PROSECUTION AND PROGRESS Section 108 of the Standard Specifications is hereby revised for this project as follows: Delete Subsection 108.01 and replace with the following: 108.01 Subletting of Contract. The Contractor shall not sublet, sell, transfer, assign, or dispose of the Contract or Contracts, or any portion thereof without written permission of the Engineer. Prior to beginning any work by the subcontractor, the Contractor shall request permission from the Engineer by submitting a completed Sublet Permit Application, COOT Form No. 205 The subcontracted work shall not begin until the Contractor has received the Engineer's written permission. The Contractor shall make all project -related written subcontracts, agreements, and purchase orders available to the Engineer for viewing, upon request, and at a location convenient to the Engineer. The Contractor will be permitted to sublet a portion of the Contract. However, the Contractor's organization shall perform work amounting to 30 percent or more of the total original contract amount. Any items designated in the Contract as "specialty items" may be performed by subcontract. The cost of "specialty items" so performed by subcontract may be deducted from the total original contract amount before computing the amount of work required to be performed by the Contractor's own organization. The original contract amount includes the cost of material and manufactured products which are to be purchased or produced by the Contractor and the actual agreement amounts between the Contractor and a subcontractor. The proportional value of a subcontracted partial contract item will be verified by the Engineer. When a firm both sells material to a prime contractor and performs the work of incorporating the materials into the project, these two phases shall be considered in combination and as constituting a single subcontract. The calculation of the percentage of subcontracted work shall be based on subcontract unit prices. Subcontracts or transfer of Contract shall not release the Contractor of liability under the Contract and Bond. Failure to comply with all contractual obligations may lead to the suspension, debarment, or both of the subcontractor, and if necessary, the Contractor as stipulated in the "Rules". Delete Subsection 108.02 and replace with the following: The Contractor shall not commence work prior to the issuance of a Notice to Proceed. The Notice to Proceed will stipulate the date on which contract time commences. When the Contractor proceeds with work prior to that date, contract time will commence on the date work actually begins. The Contractor shall commence work under the Contract on or prior to the 10th day following the issuance of the Notice to Procced. Subsection 108.03(b) shall include the following after the first paragraph: The Initial Schedule shall be submitted at least 10 working days prior to the start of the work. Work shall not begin until the Schedule is accepted in writing, unless otherwise approved by the Engineer. Subsection 108.03 shall include the following after 108.03(i): (j) Method Statements. A Method Statement shall be prepared for the controlling activities in the CPM, salient features listed in the Commencement and Completion of Work special provision, or as directed by the Engineer. The Method Statement shall include any additional activity or feature that the Engineer considers to be a controlling factor for timely completion. The Method Statement shall be a detailed narrative describing each activity or feature and all work necessary to complete it. The Contractor shall include the following information in the Methods Statement: (1) Feature name; (2) Who is responsibility for the feature work (Contractor, subcontractor, supplier, utility, etc.); (3) Detailed description of the planned work procedures. The procedures to be used shall include information such as forming, excavation, pouring, heating and curing, backfill and embankment, trenching, protecting the work, etc. When separate or different procedures are to be employed due to seasonal or project phasing requirements, such differing procedures shall be described in the statement; 69 I P a g e October 1, 2021 2 REVISION OF SECTION 108 PROSECUTION AND PROGRESS (4) The planned quantity of work per day for each feature using the same units of measure as the applicable pay item; (5) The anticipated labor force required by labor type; (6) The number, types, and capacities of equipment planned for the work; and (7) The planned time for the work including the number of work days per week, number of shifts per day, and the number of hours per shift. At the Engineer's discretion, the Contractor shall update the Method Statement or any part thereof and resubmit it to the Engineer for review and approval. Delete the second paragraph starting with "The Contractor shall not carry on construction..." in subsection 108.08 and replace with the following: The Contractor shall not carry on construction operations on Saturdays, Sundays, or holidays unless previously arranged and approved by the Project Manager and Inspector Supervisor. The Contractor shall not perform construction operations on any three or four -day holiday weekend without prior written approval. Requests for weekend construction operations shall be presented in writing to the Project Manager and Inspector Supervisor no later than Wednesday at 5 p.m. prior to the weekend in which the work will be performed. Written requests received after the deadline will be reviewed on a case by case basis. The Project Manager and Inspector Supervisor are not required to provide written approval for weekend inspectable construction operations requests. In the event, the weekend construction operations involve inspectable work (operations requiring a construction inspector), the Contractor shall provide a credit on the next pay application to the County. The amount credited shall be $400.00 per hour for the first four hours (four hour minimum) and $100.00 per hour per day thereafter for each Inspector or Engineer required to perform inspections on the inspectable work. Construction operations shall stop at 5 p.m. the day before the start of the holiday weekend. Construction operations may resume after the holiday weekend has passed. The Contractor shall only make emergency repairs and provide proper protection of the work and the traveling public on the holiday weekend days. Delete subsection 108.08(a)(2), and replace with the following: 2. Calendar Day Contract. When the work is on a calendar day basis, one calendar day of contract time will be assessed for each calendar day from the date that Contract time starts. Calendar Day Contracts have been adjusted prior to bid advertisement to account for no work on Saturdays, Sundays, and holidays by increasing the calendar days by the appropriate number of days. As stated in subsection 108.08, no inspectable construction operations shall occur on Saturdays, Sundays, and holidays unless prior approval has been granted. No weather days or less than full time charges days will be granted in this contract. Delete subsection 108.08(b), and replace with the following: When the Contract specifies a completion date, all work under the Contract shall be completed on or before the date specified. As stated in subsection 108.08, no inspectable construction operations shall occur on Saturdays, Sundays, and holidays unless prior approval has been granted. No extension of the completion date will be allowed for inclement weather, foreseeable causes, or conditions under the control of the Contractor. If all work under the Contract is not completed on or before the specified completion date, contract time will be assessed for each additional calendar day in accordance with subsection 108.8(a)(2) and liquidated damages will be assessed to the Contractor per day, per the table in subsection 108.09 until the completion of the project. Completion Date Contracts have been adjusted prior to bid advertisement to account for Saturdays, Sundays, and holidays by adjusting the completion date by the appropriate number of days. No weather days shall be given. 70 I P a g e October 1, 2021 3 REVISION OF SECTION 108 PROSECUTION AND PROGRESS Subsection 108.09 shall include the following after the first paragraph: Upon issuance of the Notice of Final Acceptance, the Contractor shall submit all required paperwork required to close out the project within 20 days. Failure to provide the required paperwork will result in the assessment of liquidated damages as outlined below. In subsection 108.09 delete the schedule of liquidated damages and replace with the following: Original Contract Amount ($) Liquidated Damages per Calendar Day ($) From More To and Than Includi n 3 f' fim" d '$ �*�� a {.' "u' h A )'` r w, 'ea.o-'00 s ), "k3 i , r>., ,;�-*. r s.. y .'r,.,. 500,000 1,000,0 1,600 00 _�£ a t -..{ 7 i Y •„y $' V 2,000,000 5,000,0 4,300 00 & .4 t �k `.t3' �.' Y 3 ��1�,a ' '�#sv.X� z • 000,000 ---------- 10,700 plus 400 Per Each Additional 1,000,000 ----- Contract Amount or Part Thereof Over 10,000,000 END OF SECTION 71IPage October 1, 2021 1 REVISION OF SECTION 110 CONTRACTOR COORDINATION WITH FUEL SITE PROJECT MANAGER SUBSECTION 110.01 CONTRACTOR COORDINATION WITH FUEL SITE PROJECT MANAGER. It is anticipated that the fuel site will be under construction during this project's timeframe. The contractor shall be responsible to coordinate with the fuel site project manager and contractor to ensure the work within this contract can be done without delay and no cost overruns to this contract. SUBSECTION 110.102 BASIS OF PAYMENT This item shall be paid per hours spent on coordination with Ponds 5 and 6. Contractor shall provide timesheets and other requested data of this coordinated activity. The County with only pay verifiable coordination. 72 1 Page October 1, 2021 1 REVISION OF SECTION 111 CONTRACTOR COORDINATION PUBLIC WORKS SNOW REMOVAL OPERATIONS SUBSECTION 111.1 CONTRACTOR COORDINATION WITH PUBLIC WORKS SNOW REMOVAL OPERATIONS. The contractor shall be responsible to coordinate with the Public Works Operations Manager as to not interfere with County snow removal operations. The salt/sand shed area and all snow plow truck parking areas shall remain unimpeded during all construction activities. Contact Curtis Hall at 970-400-3721. There shall be no additional days added to the contract due to interruptions of construction activities due to snow removal operations and has already been accounted for in the project completion deadline. SUBSECTION 111.102 BASIS OF PAYMENT This item shall be paid per hours spent on coordination. Contractor shall provide timesheets and other requested data of this coordinated activity. The County with only pay verifiable coordination. 73 I P a g e October 1, 2021 I REVISION OF SECTION 201 CLEARING AND GRUBBING Section 201 of the Standard Specifications is hereby revised for this project as follows: Subsection 201.02 shall be revised to include the following: This work shall include removal and disposal of tree stumps, bushes, roots, sod, and any other vegetation or organics that interferes with the work. This work shall include removal and disposal of all minor items for which there is no specific "removal bid item", including but not limited to wooden posts, metal posts, fence posts, concrete, and metal drainage items. Also included in this bid item is the removal of the following items: This work shall include removal of: 1. All trash, glass, cans, barrels, construction materials, and any other non -organic materials that interferes with the work. 2. All foundations, pavements, utility poles, fences, underground utilities, and other deleterious materials. 3. Sediment from existing pipes. 4. Delineators. 5. Gravel from access roads, and 6. Trees smaller than 6" DBH. Trees and shrubs designated to be removed shall include the entire root ball and all roots larger than 1/2" diameter. Subsection 201.04 shall be revised to include the following: Any dump fees or other fees associated with Clearing and Grubbing shall be considered subsidiary to this bid item. Removal of delineators shall be included as part of the work and will not be paid for separately. END OF SECTION 74 I P a g e October 1, 2021 1 REVISION OF SECTION 202 REMOVAL AND TRIMMING OF TREES Section 202 of the Standard Specifications is hereby revised for this project as follows: Subsection 202.02 shall include the following: This work includes the removal and the trimming of trees as directed by the Engineer. This work includes the preservation from injury or defacement of all vegetation and objects designated to remain. The Engineer will establish environmental limits. All trees, shrubs, plants, grasses, and other vegetative materials shall remain, except as designated by the Engineer. Removal, trimming, and pruning of encroaching vegetation (as determined by the Engineer) shall be completed prior to beginning any construction. Once all directed clearing, trimming, and pruning is completed and accepted, no additional clearing, trimming, cutting, or pruning will be allowed unless approved, in writing, by the Engineer. This work shall be done by a Contractor or subcontractor who is a qualified tree surgeon and a member of the National Arborist Association. The firm's or individual's name and qualifications shall be submitted at the pre - construction conference for the Engineer's approval. A list of references and other clients shall be included with the qualifications statement. A written description of work methods and time schedules shall be submitted and approved in writing by the Engineer prior to work commencing. Access for the removal or pruning of trees will be extremely limited. Trees shall be felled at the risk of the Contractor. Strict limits of disturbance will be defined and shall be adhered to. Branches on trees or shrubs shall be removed as directed by the Engineer. All trimming shall be done by skilled workmen. All work shall be done according to the following requirements: (1) Pruning shall be done with proper, sharp, clean tools in such a manner as to preserve the natural character of the tree. (2) All final cuts shall leave no projections on or off the branch and shall not be cut so close as to eliminate the branch collar. (3) To avoid bark stripping, all branches 2 inches in diameter and larger shall be cut using the 3 -cut method. These branches shall be lowered to the ground by proper ropes. (4) Tools used on trees known or found to be diseased, shall be disinfected with alcohol before they are used on other trees. (5) Structural weaknesses, decayed trunk or branches, or split crotches shall be reported to the Engineer. (6) When cutting back or topping trees, the Contractor shall use the drop -crotch method and avoid cutting back to small suckers. Smaller limbs and twigs shall be removed in such a manner so as to leave the foliage pattern evenly distributed. (7) When reducing size (cut back or topping) not more than one-third of the total area shall be reduced at a single operation. (8) Climbing spikes shall not be used on trees not scheduled for removal. All brush, branches, limbs, and foliage smaller than 3 inches in diameter shall be chipped into mulch and stockpiled at a designated site. The trunks and limbs 3 inches and larger shall be cut into less than 6 -foot lengths and hauled to a designated site. Stumps shall be removed when within the areas to be excavated. When trees being cut off are outside the excavation limits, the stumps shall be cut so that no more than 3 inches remains above the ground surface. 75 I Page October 1, 2021 2 REVISION OF SECTION 202 REMOVAL AND TRIMMING OF TREES Subsection 202.12 shall include the following: Pay Item Pay Unit Removal of Tree Each Trimming Tree Each Chipping, stockpiling mulch, and hauling and stockpiling trunks and limbs will not be paid for separately but shall be included in the work. Removal of trees less than 6 inches in diameter will not be paid for separately but shall be included under the clearing and grubbing pay item. All clearing and grubbing directed by the Engineer will be paid for as identified under the clearing and grubbing pay item. END OF SECTION 76 I P a g e October 1, 2021 1 REVISION OF SECTION 202 REMOVAL OF STRUCTURES AND OBSTRUCTIONS Section 202 of the Standard Specifications is hereby revised for this project as follows Delete subsection 202.09, and replace it with the following: 202.09 Removal of Asphalt Mat (Planing). The Contractor shall not commence planing operations until the hot mix asphalt (HMA) Mix Design (CDOT Form 43) has been approved and signed. Prior to beginning planing operations, the Contractor shall submit a planing plan and a Process Control Plan (PCP) for approval by the Engineer. The planing plan shall include at a minimum: 1. The number, types and sizes of planers to be used. 2. The width and location of each planing pass. 3. The number and types of brooms to be used and their locations with respect to the planers. The Contractor shall have at least one backup broom on the project at all times in case one of the operating brooms breaks down. 4. The proposed method for planing and wedging around existing structures such as manholes, valve boxes and inlets. 5. The longitudinal and transverse typical sections for tie-ins at the end of the day. 6. If requested by the Engineer, a plan sheet showing the milling passes. The PCP shall include as a minimum: 1. The schedule for replacing the cutting teeth. 2. The daily preventive maintenance schedule and checklist. 3. Proposed use of automatic grade controls. 4. The surface testing schedule for smoothness. 5. The process for filling distressed areas. 6. The schedule for testing macrotexture of the milled surface. 7. Corrective procedures if the milled surface does not meet the minimum macrotexture specification. 8. Corrective procedures if the milled surface does not meet the minimum transverse or longitudinal surface finish when measured with a 10 -foot straightedge. The existing pavement shall be milled to the cross -slope as shown on the plans and shall have a surface finish that does not vary longitudinally or transversely more than % inch from a 10 -foot straightedge. A 10 -foot straightedge shall be supplied by the Contractor. All milled surfaces shall be swept with a pick-up broom, unless otherwise specified, before being opened to traffic. A sufficient number of brooms shall be used immediately after planing to remove all milled material remaining in the roadway. If the Contractor fails to adequately clean the roadway, work shall cease until the Engineer has approved the Contractor's revised written proposal to adequately clean the roadway. 77 I P a g e October 1, 2021 2 REVISION OF SECTION 202 REMOVAL OF STRUCTURES AND OBSTRUCTIONS The milled surface shall have a macrotexture equal to or less than 0.170 inches for single -lift overlays and 0.215 inches for multiple -lift overlays as tested in accordance with CP 77. Milled surfaces that do not meet these criteria shall require corrective action in accordance with the PCP. The Contractor shall be responsible for testing the macrotexture of the milled surface at the location directed by the Engineer in accordance with CP 77 at a stratified random frequency of one test per 10,000 square yards or a minimum of once per work day. At the completion of each day's work, longitudinal vertical edges greater than 1 inch shall be tapered. No transverse vertical edges will be allowed. Longitudinal milled surface tie-ins to existing pavement shall be tapered to not less than a 3:1 slope, transverse milled surface tie-ins to existing pavement shall be tapered to not less than a 50:1 slope. Transverse tapered joints may be tapered with the planing machine, a temporary asphalt ramp, or other methods approved by the Engineer. No longitudinal joint between the milled and existing surfaces shall fall between 1 to 5 feet of any lane line. If the transverse joint is tapered with a temporary asphalt ramp, the milled surface at the joint shall be constructed as a butt joint the full depth of the lift of asphalt to be placed on the milled surface. The Contractor shall be responsible for maintaining this asphalt ramp until all corresponding HMA is placed. All work associated with this joint will not be paid for separately but shall be included in the cost of planing. If the transverse joint is tapered with a planing machine, a butt joint shall be cut into the taper the full depth of the lift of asphalt to be placed on the milled surface prior to commencement of resurfacing. All work associated with this joint will not be paid for separately but shall be included in the cost of planing. Other approved transverse joint tapers shall be maintained at the expense of the Contractor, and at a minimum shall incorporate a butt joint the full depth of the lift of asphalt to be placed on the milled surface prior to commencement of resurfacing. Distressed or irregular areas identified in the planed surface by the Engineer shall be patched. The roadway shall be left in a safe and usable condition at the end of each workday. The Contractor shall take appropriate measures to ensure that the milled surface does not trap or hold water. All required pavement markings removed by the planing shall be restored before the roadway is opened to traffic. All planing shall be completed full width and parallel to the travel lanes before resurfacing commences unless otherwise directed by the Engineer. All material generated by the planing operation shall become the property of the Contractor unless otherwise noted in the Contract. Each planer shall conform to the following: 1. The planer shall have sufficient power, traction and stability to maintain an accurate depth of cut. 2. The propulsion and guidance system of the planer shall be maintained in such condition that the planer may be operated to straight and true lines. 3. Operation with broken or missing teeth will not be allowed. Worn teeth shall be replaced if the planer does not produce a uniform surface. 4. The planer shall be capable of operating with automatic grade controls (contact or non -contact) on both sides of the machine using a 30 -foot averaging system or other approved grade control systems. The use of such controls shall be described in the Contractor's PCP. 5. The planer shall be capable of picking up the removed material in a single operation. A self -loading conveyor shall be an integral part of the planer. Windrows will not be allowed. 78 I P a g e October 1, 2021 3 REVISION OF SECTION 202 REMOVAL OF STRUCTURES AND OBSTRUCTIONS 6. All material generated by the planing operation shall become the property of the Contractor unless otherwise noted in the Contract. Subsection 202.11 shall be revised to include the following: Removal of Delineator will be measured by the number of delineators removed and accepted. Removal of Concrete Median Cover will be measured by the area in square yards, completed, and accepted. Removal of ground sign will be measured by the number of signs removed and accepted. The entire post and base shall be removed. Subsection 202.12 shall include the following: Macrotexture testing, macrotexture corrective actions, planers, brooms and all other work necessary to complete the item will not be measured and paid for separately but shall be included in the work. Lighting required for nighttime operations will not be measured and paid for separately but shall be included in the work. Payment will be made under: Pay Item Unit Removal of Concrete Median Cover Material Square Yard Removal of Delineator Each Removal of Ground Sign Each END OF SECTION 79IPage October 1, 2021 I REVISION OF SECTION 203 EXCAVATION AND EMBANKMENT Section 203 of the Standard Specifications is hereby revised for this project as follows: Subsection 203.01 shall be revised to include the following: Imported material used for backfilling pipes shall be tested for compatibility with the selected pipe material. When non -Reinforced Concrete Pipe or Reinforced Concrete Pipe is used, the imported material shall be tested for sulfates and pH to ensure that it is compatible with the selected pipe material. When Corrugated Steel Pipe, Bituminous Coated Corrugated Steel Pipe, or Precoated Corrugated Steel Pipe is used, the imported materials shall be tested for sulfates, chlorides, pH, and resistivity. When Aramid Fiber Bonded Corrugated Steel Pipe or Corrugated Aluminum Pipe is used, the imported material shall be tested for pH and resistivity. When Plastic Pipe is selected, the imported material does not need to be tested for sulfates, chlorides, pH, and resistivity. Sulfates, chlorides, pH, and resistivity shall be determined by the following procedures: 1. Water soluble sulfates using CP-L2103 Method B. 2. Chlorides using CPL 2104. 3. Resistivity using ASTM G57 4. pH using ASTM G51. Delete Subsection 203.02(a) and replace with the following: (a) Unclassified Excavation: Unclassified excavation shall consist of the excavation of all materials of whatever character required for the work, obtained within the temporary construction easement as shown on the plans, including surface boulders and excavation for ditches and channels that is not removed under some other item. Any excess soil materials generated from excavation shall become the property of the Contractor and shall be hauled out of the project site and disposed of at a disposal site approved by the Weld County Inspector. Unclassified Excavation shall include removal of unstable or unsuitable material within the roadway as determined and directed by the Engineer. Unclassified Excavation (Complete in Place): Complete -in -place excavation shall consist of the excavation of all materials of whatever character required for the work, obtained within the temporary construction easement as shown on the plans, including surface boulders and excavation for ditches and channels that is not removed under some other item. Approved in -place excavation material shall be placed in embankments per the Plans and Specifications. Import Fill: Import Fill shall be defined as engineered fill purchased from an outside vendor or gravel pit. The minimum R -value shall be 40. Delete Subsection 203.02(c) and replace with the following: (c) Removal of Unsuitable Material (Export Fill): The removal of unsuitable material shall only be completed as directed by the County and shall be considered muck excavation. Embankment material containing significantly more than optimum moisture that would become stable if dried shall not be considered unsuitable material. The replacement material for areas of muck excavation shall meet the requirements of Embankment with a minimum R -value as determined by the Engineer, Asphalt Pavement Millings, Aggregate Base Course (Class 6), and/or Geotextile (Reinforcement). 80 I Page October 1, 2021 2 REVISION OF SECTION 203 EXCAVATION AND EMBANKMENT Subsection 203.03 replace the first sentence with the following: All embankment material shall consist of material that has been obtained from required excavation or from an approved source. Any embankment material shall a minimum R -value of 20. The Contractor shall not obtain embankment material, other than the developed from suitable materials excavated on site, without written approval of the Project Inspector. Material excavated at the project site may be used if approved by Weld County Inspector or Engineer. Subsection 203.03 replace all reference to CDOT's lab with Weld County Lab. In Subsection 203.06 delete the 4th paragraph and replace with the following: The cleared surface shall be completely broken up by plowing or scarifying to a minimum depth of 8 inches or as specified in the contract, the moisture content increased or decreased as necessary, and compacted to the specified embankment density for the material type present. In subsection 203.07 prior to the first sentence, add the following: It is anticipated that the majority of soil excavated on this project will be placed within the roadway prism or hauled off -site. However, the Project Inspector has the authority to order that certain material be placed within the embankment side slopes. Unsuitable excavation materials produced from muck excavation and pipe installation shall not be used for embankment and shall be hauled off the jobsite. Topsoil which has been stripped and stockpiled shall be placed on the top of embankment slopes. In subsection 203.07(a), paragraph 2, add the following: A Sheepsfoot compactor shall not be used on A-1 material containing less than 30% retained on the %-inch sieve. Based on the Western Alliance for Quality Transportation Construction (WAQTC) inspection guidelines, the appropriate equipment to use on granular soils such as an A-1 soil, a steel vibratory roller or pneumatic rubber -tired roller. Sheepsfoot rollers are appropriate for materials composed of cohesive soils and clay rich non -durable bedrock. In subsection 203.08, the first paragraph shall be revised to include the following: Contractor's verified proof rolling equipment, meeting the 18 kip loading per axle, will be available onsite during all phases of earthwork activities and as an erosion control method for dust control mitigation. A current certified scale ticket showing the fully loaded weight of the water truck(s) shall be submitted to the Engineer and Project Inspector prior to any proof roll acceptance. The Inspector may require a proof roll at any elevation to verify stability. In subsection 203.08, delete the third and fourth paragraphs and replace with the following: The proof roller shall be operated in a systematic manner so that a record may be readily kept of the area tested and the working time required for the testing. Repair to the satisfaction of Engineer, areas that are observed to have soft spots in the subgrade or where deflection is not uniform or is deemed excessive as determined by the Engineer. The repair may involve muck excavation, geogrid reinforcement, replacement of excavated materials, or other methods as directed by the Engineer. After replacement and re -compaction, these areas may be proof rolled again if deemed necessary by the Engineer. The surface shall be maintained in a smooth condition, free from undulations and ruts, until other work is placed thereon or the work is accepted. After the subgrade has been stabilized, the Contractor shall perform proof rolling in accordance with subsection 203.08. Final proof rolling will take place a maximum of two days (48 hours) after all mechanical stabilization or unbound aggregate work has been completed, unless otherwise approved by the Engineer. Final proof rolling will take place a minimum of two days after all lime or other chemical stabilization work has been completed, unless otherwise approved by the Engineer. 81 1 Page October 1, 2021 3 REVISION OF SECTION 203 EXCAVATION AND EMBANKMENT Subsection 208.03, after the last paragraph, add the following as Subsection 203.08(a) Finishing: The finished surface shall be smooth and uniform conforming to the typical sections. Variation from the stabilized subgrade plan elevations shall not exceed. 0.04 feet. All irregularities, depressions, or weak spots, which develop, shall be corrected at the Contractor's expense. The surface shall be maintained in a smooth condition, free from undulations and ruts until other work is placed thereon or the work is accepted. No separate payment will be made for areas of unsuitable material excavation, geogrid reinforcement, or replacement of excavated materials. Subsection 203.11(a) shall be revised to include the following: The disposal of unsuitable material and replacement of embankment will not be measured and paid for separately but shall be included in the work. Subsection 203.11(b) shall be revised to include the following: The quantities for Embankment (Complete in Place) will not be measured, but will be the quantity designated in the Contract, unless field changes are ordered. If field changes are ordered, the quantities will be calculated using the revised dimensions and the additional volume of material shall be approved in writing by the Project Inspector prior to beginning the work. No allowances shall be made for shrinkage, swell, subsidence due to compaction of the existing ground or any other losses. The quantities for Embankment and Unclassified Excavation will not be measured, but will be the quantity designated in the Contract, unless field changes are ordered. If field changes are ordered, the quantities will be calculated using the revised dimensions and the additional volume of material shall be approved in writing by the Inspector prior to beginning the work. No allowances shall be made for shrinkage, swell, subsidence due to compaction of the existing ground or any other losses. Payment for Embankment and Unclassified Excavation shall be full compensation for all work necessary to complete the earthwork to the lines and grades when on the Plans. This includes scarification, wetting and drying of soils to obtain optimum moisture content, compaction, testing, and hauling and disposal of excess or unsuitable materials off the jobsite. The Contractor's Process Control efforts will not be measured and paid for separately but shall be included in the work. Subsection 203.12 shall be revised to include the following: Payment for Embankment (Complete in Place) shall be full compensation for all work necessary to complete the earthwork to the lines and grades when on the Plans. This includes scarification, wetting and drying of soils to obtain optimum moisture content, compaction, testing, and hauling and disposal of excess or unsuitable materials off the jobsite. END OF SECTION 82 1 Page October 1, 2021 1 REVISION OF SECTION 206 EXCAVATION AND BACKFILL FOR STRUCTURES Section 206 of the Standard Specifications is hereby revised for this project as follows Section 206.01 shall include the following: Structure excavation, structure backfill, filter material and bedding material required for all pipes, culverts and pipe culvert extensions, inlets, storm sewer pipes, manholes and other drainage structures, will not be paid for separately but shall be included in the work. Compaction, water, pumping, bailing, draining, de -watering, sheeting, bracing and all other work necessary to complete the above items will not be measured and paid for separately, but shall be included in the work. Delete Subsection 206.02(a)(2) and replace with the following: Flow fill shall be a self -leveling concrete material with the following specifications 1. Slump of 7 to 10 inches when tested in accordance with ASTM C143. 2. Compressive strength F'C = 1,000 psi at 28 days when tested in accordance with ASTM D4832. 3. Weight of a minimum of 329 pounds ASTM 150 Type I -II. 4. Coarse aggregates when tested in accordance with ASTM-33 shall be a minimum of 1,000 pounds. 5. Fine Aggregate when tested in accordance with ASTM-33 shall be a minimum of 2,000 pounds. 6. Air Entraining Agent (Sika Air) shall be a minimum of 1.0 ounces per cubic yard when measured in accordance with ASTM C260. 7. Water shall be a minimum of 150 pounds. 8. Flash fill shall not be used in lieu of Flow Fill unless approved by the Engineer. Materials for Structure Backfill (Flow -Fill) shall meet the requirements specified in the following subsections: Fine Aggregate 703.01 Coarse Aggregate 703.02 Portland Cement 701.01 Fly Ash 701.02 Water 712.01 Air -Entraining Admixture 711.02 Chemical Admixtures 711.03 The Contractor shall submit a Structure Backfill (Flow -Fill) mix design for approval prior to placement. The mix design shall include the following laboratory test data: 83 I P a g e October 1, 2021 2 REVISION OF SECTION 206 EXCAVATION AND BACKFILL FOR STRUCTURES 1. ASTM C321, Air Content 2. ASTM 06023, Unit Weight 3. ASTM C143, Slump or ASTM 06103, Flow Consistency 4. ASTM 04832, 28 -day Compressive Strength The Contractor shall submit a Process Control (PC) Plan with the mix design to the Engineer. The PC Plan shall address batching, mixing, testing, and placement of the Structure Backfill (Flow -Fill). Delete Subsection 206.03, paragraph 3 and replace with the following: Rock, hardpan, or other unyielding material encountered in trenches for culvert pipe or conduit shall be removed below the designed grade for a minimum of 12 inches. This extra depth excavation shall be backfilled with loose Structure Backfill (Class 1) or other approved material. The subgrade beneath any structural element shall be scarified to the depth specified in Section 203.07 of the Specifications or as directed by the Engineer. The type of compaction shall be the same as that required for Structure Backfill (Class 2), as specified below. Subsection 206.07 shall include the following: Excavate and replace within same working day the structural excavation and structural backfill that is located below retaining walls. Excavations shall not be left open for extended periods of time. Excavations left open overnight shall be surrounded by orange construction safety fence. END OF SECTION 84 I P a g e October 1, 2021 1 REVISION OF SECTION 207 TOPSOIL Section 207 of the Standard Specifications is hereby deleted for this project and replaced with the following: DESCRIPTION 207.01 This work consists of salvaging topsoil from onsite locations, stockpiling, maintaining, and preparing the subsoils for the placement of the topsoil at locations shown on the plans. It also includes creating seeding media by amending subsoils, and/or importing offsite topsoil when shown on the plans. Substitutions from this specification will not be allowed unless submitted in writing to the Engineer and approved by the Engineer. The topsoil material shall be generally evenly distributed throughout the project limits. Any excess topsoil generated from this project shall become the property of the Contractor and shall be hauled off the Project. MATERIALS 207.02 General. Topsoil shall be salvaged onsite, imported, or produced as shown on the plans. Topsoil shall be free of refuse and litter along with noxious weed seed and reproductive plant parts, as listed in current State of Colorado A and B Noxious Weed List and local agency weed lists. Topsoil shall not include heavy clay, hard clods, toxic substances, pathogens, or other material, which would be detrimental to growing native vegetation. All required amendments shall be thoroughly incorporated to parent material, onsite. All amendments shall conform to Section 212. Organic amendments shall meet the requirements in the Weld County Revision to Section 212 and the following: 1. An organic product such as Biotic Earth Black or approved equal. 2. Eradicate harmful pathogens including coliform bacteria. 3. Create a carbon to nitrogen ratio of no less than 15/1 to 25/1. 4. Contain no solid particle greater than %" in diameter. 5. Have a non -offensive smell like fresh turned soil. 6. Contain no significant level of dirt or soil and contain a maximum of 30% composted wood residue (pine or aspen wood) (saw dust is unacceptable). 7. The pH after composting shall be between 5.0 and 7.5 with an organic matter content of not less than 30%. 8. Soluble salts shall not be greater than 3mmhos/cm. Topsoil and parent material shall be free of clods, sticks, stones, debris, concrete, and asphalt in excess of 4 inches in any dimension for all material used within the designed clear zone for the project. Topsoil outside of the clear zone may contain rock larger than 4 inches in any dimension. Topsoil shall not include any minerals or elements detrimental to plant growth. Topsoil shall be generated from one or more of the following as shown on the plans: (a) Topsoil (Onsite). Topsoil shall consist of the upper 6 -inch layer of the A horizon, as defined by the Soil Science Society of America, or at the depths and locations shown on the Stormwater Management Plan (SWMP). It shall consist of loose friable soil, salvaged from onsite and stockpiled or windrowed. Litter and duff (layer of partially decomposed plant material) shall be collected as part of the salvaging of topsoil unless specified to be removed and hauled offsite on the plans. 85IPage October 1, 2021 2 REVISION OF SECTION 207 TOPSOIL For topsoil salvaged from the project site, the Contractor shall provide soil tests using the same method of soil analysis used by the Colorado State University Soil Testing Laboratory. Test results shall be provided to Weld County. All topsoil salvaged from onsite shall be amended/conditioned to meet the requirements of this specification. It may be necessary to add additional fertilizers and conditioners to the hydraulic -growth medium in order to meet the recommendations of the CSU Soil Testing Laboratory recommendations. (b) Topsoil (Wetland). Wetland topsoil shall consist of moist, organic soil obtained from delineated wetlands, including any existing wetland vegetation and seeds. Wetland topsoil shall be extracted from the project site at locations shown on the plans or as directed, to a minimum depth of 12 inches or at the depths as shown on the plans. Table 207-1 PHYSICAL PROPERTIES OF SEEDING MEDIA Property Range Test Soil pH (s.u.) 5.6-7.5 ASA Mono. #9, Part 2, Method 10-3.2 or TMECC 04.11-A Soil Electrical Conductivity (EC) <5 0 ASA Mono. #9, Part 2, Method mmhos/cm or ds/m 10-3.3 Soil SAR (s.u.) 0 -10 ASA Mono. #9, Part 2, Method 10-3.4 Rock Content (%) < 25 USDA NRCS Rock Fragment Modifier Usage Trace Contaminants Meets US EPA40 CFR TMECC 04.06 or EPA6020fASA (Arsenic, Cadmium, Copper, Mercury, , 503 Regulations (American Society of Selenium, Zinc, Nickel, and Lead Agronomy) Rock Content (%) greater than 3" < 25 USDA NRCS Rock diameter — Fragment Modifier Usage No more than 70% clay, ASA Monograph #9, Part 1, USDA Soil Texture silt, and sand by Method 15-4 percentage volume of or topsoil. ASA 143-5 All Particle Sizes <6 Inches Physical contaminants (man-made <'1 TMECC 03.08-C inerts C:N ratio <20 TMECC 05.02-A * Fines % when manufacturing material >25% material passing ASTM D6913 from rock through #4 sieve Amendments to the base imported material shall have the quantities of material verified onsite prior to incorporation into parent material, either at the stockpiles or after placement of parent material. Topsoil amended at the stockpiles shall be distributed to the site within seven days. * Substitute this requirement for USDA Soil Texture requirement when project is approved to use material manufactured from native rock material on site. (c) Seeding Media. Seeding Media shall consist of one or all of the following approved materials: sub -soil, overburden, or material generated from rock. Contractor shall select onsite or offsite locations to generate material that meet the requirements of Table 207-1. The Contractor shall provide a Certified Test Report (CTR) in accordance with subsection 106.13, excluding lot, heat, and batch confirming that the excavated material conforms to Table 207-1. 86 J P a g e October 1, 2021 3 REVISION OF SECTION 207 TOPSOIL (d) Topsoil (Offsite). Imported topsoil shall be approved by the County before use. The Contractor shall submit a CTR for Topsoil (Offsite) for approval a minimum of 60 days prior to import in accordance with subsection 106.13. The Contractor shall include with the CTR a complete Soil Nutrient Analysis for the properties listed in Table 207-2 from the Colorado State University Soil Testing Laboratory or an independent laboratory that uses the same the methods of analysis as the CSU Soil Testing Laboratory. If topsoil nutrient analysis is deficient, an Amendment Protocol shall be submitted by the Contractor for approval. The Amendment Protocol shall contain a complete list of amendments and associated quantities to produce topsoil that conforms to Table 207-2. Table 207-2 TOPSOIL (OFFSITE) PROPERTIES Property Range Test Methods Soil pH (s.u) 5.6 — 7.5 ASA Mono. #9, Part 2, Method 10-3.2 or TMECC 04.11-A Salt by Electrical Conductivity (EC) (mmhos/cm <2 0 ASA Mono. #9, Part 2, Method or ds/m) . 10-3.3 Soil SAR (s.u.) 0 -10 ASA Mono. #9, Part 2, Method 10-3.4 Soil OM (0/ 3 — 5 Methods of Soil Analysis, Part 3, Method 34 Methods of Soil Analysis, Part Soil N (NO3-n, ppm) > 20.0 3. Chemical Methods. Ch. 38 Nitrogen — Inorganic Forms ASA Mono. #9, Part 2, Method Soil P (ppm) > 13.0 24-5.4 or others as required based on soil pH Soil K (ppm) > 80 ASA Mono. #9, Part 2, Method — 13-3.5 Rock Content (%) greater than 3" diameter < 25 USDA NRCS Rock Fragment Modifier Usage Bioassay (seedling emergence and relative 80% of control TMECC 05.05-A or Approved vior Germination Test No more than 70% clay, ASA Mono. #9, Part 1, Methodume Soil Texture silt and sand by % vol 15-4 of topsoil Physical contaminants (man-made inerts) % <1 TMECC 03.08-C Trace Contaminants Meets US EPA, 40 CFR TMECC 04.06 or (Arsenic, Cadmium, Copper, Mercury, Selenium, 503 Regulations EPA6020/ASA (American Zinc, Nickel, and Lead) Society of Agronomy) All Particle Sizes <6 Inches C:N ratio <20 TMECC 05.02-A The Contractor shall submit a COC for Topsoil (Offsite) for approval a minimum of 60 days prior to import that the source has controlled noxious weeds in accordance with the State of Colorado Noxious Weed Act 35-5.5-115. All imported topsoil shall be amended/conditioned to meet the requirements of this specification. It may be necessary to add additional fertilizers and conditioners to the hydraulic growth medium in order to meet the recommendations of the CSU Soil Testing Laboratory recommendations. The Contractor shall utilize a rod penetrometer for determining subgrade soil preparation and determining looseness of soil after ripping. The penetrometer shall have a psi pressure gage, and shall meet the following requirements: 87 I P a g e October 1, 2021 4 REVISION OF SECTION 207 TOPSOIL (1) Steel rod with a minimum diameter of 1/2 inch with graduations (tick marks) every 6 inches. (2) The rod shall be made of stainless steel or other metal that will not bend when weight is applied. (3) The end of the rod shall have a 30 -degree cone tip. (4) The diameter of the cone at its tip shall be no more than 0.1 inch. (5) The top of the rod shall be a T -handled configuration. CONSTRUCTION REQUIREMENTS 207.03 Site Pre -vegetation Conference. Prior to the start of the initial Subgrade Soil Preparation for the project, the Contractor shall request a Site Pre -vegetation Conference. The Contractor shall set up the conference and will include: the Engineer or designated representative, the Superintendent or designated representative, and the sub- contractor(s) performing the subgrade soil preparation and soil amendments. Only one meeting is required for the project unless a new sub -contractor is brought on that did not attend the previous meeting. The Agenda of the Pre -vegetation Conference can be found in Appendix A of the Construction Manual and includes the following: (1) Final review of the Topsoil Amendment Protocol (2) Review of the Method Statement detailing the equipment which will be used for the subgrade soil preparation operations (3) Review of rod penetrometer which will be used to determine subgrade soil preparation of topsoil (4) Permanent Stabilization Phasing Plan (identify strategies and site management measures to protect de - compacted, topsoil amended, seeded, and blanketed areas from foot, vehicle loads, and other disturbances). (5) Seeding. See subsection 212.03 for submittal requirements. (6) Meeting attendee sign -in log 207.04 Topsoil Stockpiling. Stockpiles of topsoil shall be created as shown on the plans or as approved by the Engineer. All Stockpiles of topsoil which are scheduled to remain in place for 14 days or more shall receive interim stabilization in accordance with subsection 208.04. All topsoil stockpiles shall be identified using white pin flags with "TOPSOIL" printed in black letters and shall have their locations shown on the SWMP Plans. Each individual stockpile shall require at least one flag, and one additional flag for each 10 cubic yards of salvaged topsoil. The contractor shall provide only perimeter flags for stockpile larger than 100 cubic yards with a minimum spacing of 25 feet. Topsoil may be placed in stockpiles or windrowed at the edge of the disturbance. When topsoil is windrowed, all stockpile requirements still apply. (1) Upland Topsoil. If included on the plans, stockpiles shall be treated with herbicide, in accordance with Section 217, or as directed. (2) Wetland Topsoil. Wetland stockpiles shall not be treated with herbicide. Weeds shall be hand pulled. Wetland topsoil shall be placed within 24 hours from excavation, unless otherwise approved by the Engineer. Wetland topsoil shall not be stockpiled for more than six months. 88 I P a g e October 1, 2021 5 REVISION OF SECTION 207 TOPSOIL 207.05 Subgrade Soil Preparation. Before placement of topsoil, the subgrade shall be ripped to a minimum depth of 14 inches. Subgrade shall be mostly dry and friable. Subgrade shall crumble without sticking together, yet not be so dry and hard that it does not break apart easily. Underground utilities shall be located prior to soil preparation. Subgrade soil preparation equipment shall be done with farming implements such as a moldboard plow and disk. The use of a dozer or grader equipped with ripping shanks shall not be allowed. Operation shall be performed to fracture the soil uniformly without lifting or furrowing the surface excessively. The Contractor shall submit a method statement for subgrade soil preparation. The Contractor shall calibrate the subgrade soil preparation equipment using a minimum 30 linear feet of the initial pass. The Contractor shall utilize the rod penetrometer to verify that that de -compaction was successfully done. The Contractor shall take penetration measurements every 6 inches across a transect perpendicular to the direction of the tractor and spanning the width of the subgrade soil preparation. Depths of penetration shall confirm that a minimum of 12 inches can be achieved without reaching 300 psi on the rod penetrometer pressure gage (approximately 30 pounds of pressure on the T -handle). Existing subgrade shall be de -compacted to a depth of 14 inches. If multiple passes are needed, the subsequent passes shall be positioned so that the ripping equipment (subsoilers) from the previous pass are split by the subsequent pass. Following ripping, the Contractor shall remove all sticks, stones, debris, clods, and all other substances greater than 6 inches in diameter. The Contractor shall restrict motorized vehicle and foot traffic from passing over the ripped area since this would recompact the areas that received subgrade soil preparation. The first 4 feet from the edge of pavement shall be ripped to a depth of 6 inches. If the project is going to use aggregate base course or recycled asphalt as a shouldering technique, those areas will not require subgrade soil preparation. Depth of soil ripping for the subgrade soil preparation shall be checked with the rod penetrometer. The Contractor shall verify adequate de -compaction of the entire area to have topsoil placed using a rod penetrometer in the presence of the Engineer. Tests shall be performed at a minimum of ten random locations per each acre as selected by the Engineer. The Test shall verify that a depth of 12 inches of penetration into the soil can be achieved without reaching 300 psi on the rod penetrometer pressure gage (approximately 30 pounds of pressure on the T -handle). If this depth cannot be achieved for 80 percent of the penetrations, the Contractor shall re -rip the area at no additional cost to the Department. 207.06 Placement of Topsoil and Seeding Media. Topsoil and Seeding Media shall be hauled and placed at the locations disturbed and will be re -vegetated or as shown on the plans. The contractor shall place a minimum thickness of 6 inches and should only be handled when it is dry enough to work without damaging soil structure. Topsoil and Seeding Media shall be placed a minimum depth of twelve (12) inches when placed over riprap as required on the plans. No Topsoil or Seeding Media shall be placed below ordinary high water mark except as otherwise specified in bio-stabilization bank treatments. Salvaged topsoil placement deeper than 6 inches is allowed if additional approved material is on -site. Contractor shall place topsoil in a method that does not re -compact subgrade material using low ground -contact pressure equipment, or by excavators and/or backhoes operating adjacent to it. The final grade shall be free of all materials greater than 4 inches in diameter within the designed clear zone for the project. Equipment not required for revegetation work will not be permitted in the areas of placed topsoil. Soil amendments, seedbed preparation, and permanent stabilization mulching shall be accomplished within four working days of placing the topsoil on the de -compacted civil subgrades. If placed topsoil is not mulched with permanent stabilization mulch within four working days, the Contractor shall complete interim stabilization methods in accordance with subsection 208.04(e), at no additional cost to the Department. Time to perform the work may be extended for delays due to weather. 89 I P a g e October 1, 2021 6 REVISION OF SECTION 207 TOPSOIL METHOD OF MEASUREMENT 207.07 Topsoil material will be measured by the actual number of cubic yards of topsoil placed and accepted. The volume of Topsoil will be determined by measuring the area in which the Topsoil is placed and multiplying the area by 0.5 feet. Subgrade soil preparation will be measured by the square yards of subgrade which is ripped and accepted for adequate de -compaction. BASIS OF PAYMENT 207.08 The accepted quantities measured will be paid for at the Contract unit price for each of the pay items listed below that appear in the bid schedule. Payment will be made under: Pay Item Pay Unit Topsoil ((Onsite) g Cubic Yard Seeding Media Cubic Yard Topsoil (Offsite) Cubic. Yard Topsoil (Wetland) Cubic Yard Subgrade Soil Prearation Square Yard Amendments for Topsoil (Onsite) and Seeding Media will be measured and paid for in accordance with Section 212. Amendments for Topsoil (Offsite) will not be measured and paid for separately but shall be included in the work. Noxious Weed Management will be measured and paid for in accordance with Section 217. Stockpiling or windrowing of topsoil will not be measured and paid for separately but shall be included in the work. Testing of Seeding Medial and Topsoil (Offsite) will not be measured and paid for separately but shall be included in the work. Rod penetrometer and associated verification testing of random locations will not be measured and paid for separately but shall be included in the work. The Site Pre -vegetation Conference will not be paid for separately but shall be included in the work. Additional passes with the ripping equipment to achieve the desired de -compaction will not be measured and paid for separately but shall be included in the work. Removing of clods, sticks, stones, debris, concrete, and asphalt in excess of 4 inches in any dimension for all topsoil and Seeding Media used within the designed clear zone for the project will not be measured and paid for separately but shall be included in the work. Loading and hauling to redistribute stockpiled topsoil uniformly throughout the project limits shall not be measured and paid for separately but shall be included in the work. END OF SECTION 90 I P a g e October 1, 2021 1 REVISION OF SECTION 208 EROSION CONTROL Section 208 of the Standard Specifications is hereby modified as follows: The fourth paragraph of Subsection 208.01 shall be revised to include the following: If immediate corrective actions cannot be taken, the Contractor shall immediately ask for a deferment by providing the information outlined in Section 208.09(c) for review by the Engineer. Delete Subsection 208.02(c) and replace with the following: (c) Temporary Berms. Temporary berms shall be constructed out of onsite soil materials. Temporary berms shall be wheel compacted. Temporary berms shall be stabilized and seeded to prevent erosion of the berm. The cost of compacting, stabilizing, and seeding the temporary berms shall be incidental to the cost of the berms. Subsection 208.02(k) shall be revised to include the following: (3)The use of disposable plastic swimming pools shall not be allowed. Delete the third paragraph of Subsection 208.02(l) and replace with the following: Erosion control geotextile underlying aggregate material shall be Mirafi FW-300. Delete Subsections 208.03(5) and 208.03(6). Delete Subsection 208.03(6)(c)(2)(2)(i). Delete Subsection 208.03(6)(c)(2)(5) and replace with the following: (5)The Contractor shall report the following circumstances orally to the Engineer, CDPHE, the Contractor's Superintendent, and the SWMP Administrator within 24 hours from the time the permittee becomes aware of the circumstances, and shall mail to CDPHE a written report containing the information requested within five working days after becoming aware of the following circumstances: (i) Noncompliance which may endanger health or the environment, regardless of the cause of the incident. (ii) Unanticipated bypass which exceeds any effluent limitations in accordance with the CDPS-SCP. (iii) Upset conditions which causes an exceedance of any effluent limitation in accordance with the CDPS-SCP. (iv) Daily maximum violations for any of the pollutants limited by the permit. This includes any toxic pollutant or hazardous substance, or any pollutant specifically identified as the method to control any toxic pollutant or hazardous substance. (v) The written report shall also be provided to the Engineer and a copy shall be placed in the SWMP notebook. Delete all references to CDOT in Subsection 208.03(6)(d) and replace with Weld County. Subsection 208.03(d)(1), paragraph following item 18 shall be deleted and replaced with the following: The Engineer will incorporate the documents and reports available at the time of award. The Contractor shall provide and insert all other documents and reports as they become available during construction. The SWMP Administrator shall finalize the SWMP for Weld County use upon completion of the project. SWMP completeness shall be approved by the Engineer. Corrections to the SWMP shall be made at the Contractor's expense. 91 1 Page October 1, 2021 2 REVISION OF SECTION 208 EROSION CONTROL Delete Subsection 208.04(c) and replace with the following: (c) Work Outside the Right of Way. Disturbed areas, including staging areas, which are outside Weld County ROW and outside easements acquired by Weld County for construction, are the responsibility of the Contractor. These areas shall be subject to a separate CDPS-SCP and all other necessary permits, as they are considered a common plan of development if within a'/< mile of the construction site. The Contractor shall acquire these permits and submit copies to the Engineer prior to any disturbance. These permits, shall be acquired and all erosion and sediment control work performed at the Contractor's expense. These areas are subject to inspections by Weld County or any other agency. A documented use agreement between the permittee and the owner or operator of any control measures located outside of the permitted area that are utilized by the permittee's construction site for compliance with the CDPS-SCP, but not under the direct control of the permittee shall be placed in the project's SWMP. Delete Subsection 208.04(f), paragraph 1 and replace with the following: (t) Maintenance. Erosion and sediment control practices and other protective measures identified in the SWMP as control measures for stormwater pollution prevention shall be maintained in effective operating condition until the CDPS-SCP has been transferred to Weld County. Control measures shall be continuously maintained in accordance with good engineering, hydrologic, and pollution control practices, including removal of collected sediment when silt depth is 50 percent or more of the effective height of the erosion control device. When possible, the Contractor shall use equipment with an operator rather than labor alone to remove the sediment. Delete Subsection 208.09 and replace with the following: 208.09 Regulatory Mechanism for Water Quality. The Engineer will identify and document findings not in compliance with the Water Quality Specifications, as specified in subsection 208.09(a)(7), during water quality control inspections or observation by the Engineer. The Engineer will immediately notify the Contractor of these findings by issuing Form 105. Failure by the Contractor to clarify a finding location with the Engineer shall not interrupt the timelines noted in subsection 208.09(b). Timelines noted in subsection 208.09(b) do not indemnify the Contractor from failing to comply with CDPS-SCP timelines for corrective actions. (a) Definitions. 1. Compliance Assistance. A low risk event as determined by the Engineer or MS4 Coordinator. Compliance assistance events are not considered Findings and not subject to the Regulatory Mechanism noted in subsection 208.09(b). 2. Deferment. A request from the Contractor to the Engineer to delay implementation of corrective actions for Regular Findings pertaining to Water Quality Specifications. Deferments may only be granted due to extraordinary circumstances. However, it is at the Engineer's discretion to approve or reject these requests. 3. Finding. An incident discovered through inspection by Weld County or by Engineer observation, which is noncompliant with the Water Quality Specifications. A Finding will be classified as one of the following: (1) Regular Finding. A situation upon inspection that is in noncompliance with the Water Quality Specifications. (2) Severe Finding. A discharge outside the project's Limits of Construction (LOC), subsection 107.25(a), to State waters or to a live inlet where the pollutant cannot be reclaimed. 92 I Page October 1, 2021 3 REVISION OF SECTION 208 EROSION CONTROL (3) Chronic Finding. A Chronic Finding is assessed when the same Regular Finding at the same location is documented twice in the last three water quality control inspections. Engineer observed findings outside these inspections will not apply. 4. Inspection Form 105. The Form 105 issued by the Engineer documenting findings from water quality inspections in accordance with subsection 208.03(c). 5. Location. The place where the finding was observed; can be a document (e.g., stormwater management plan [SWMP]) or physical location. A physical location must be described with enough detail to guide an independent party to the spot of the finding. Physical locations must be supported with at least one photograph. 6. Recalcitrance. Contractor has shown willful negligence or misrepresentation or unwillingness to adhere to the Water Quality Specifications. 7. Water Quality Specifications. Subsection 107.25, Sections 208, 213 and 216, and Standard Plans M-208- 1 and M-216-1. (b) Liquidated Damages and Stop Work Orders. The Contractor will be subject to Liquidated Damages for incidents of failure to comply with the Water Quality Specifications and implement corrective actions to resolve noncompliance in the time frame established in subsection 208.09(b and c). Liquidated damages are for the Contractor's failure to comply with the Water Quality Specifications. Liquidated damages will accumulate for each finding, for each cumulative day that the finding remains uncorrected. Liquidated damages associated with incidents pertaining to this subsection do not indemnify the Contractor of other Liquidated Damages associated with this project. In addition to Liquidated Damages, the Contractor will be subject to a project -wide Stop Work Order for recalcitrance and the Engineer may, in writing, issue a Stop Work Order for Chronic and Severe Findings in accordance with subsection 105.01. A Stop Work Order shall not result in the stopping of the Contract Time. Issuance of a Stop Work Order shall not be considered a valid reason for the Contractor asking for additional Contract Time. Findings are closed when the corrective action is complete, reported to the Engineer and accepted by the Engineer. The Engineer will notify the Contractor when the corrective action is accepted or denied. Liquidated damages will be assessed by the type of finding as follows and will continue until the corrective action is approved by the Engineer. 1. Regular Finding. The time required to repair a Regular Finding shall begin at 11:59 PM on the date the Inspection Form 105 is issued. The Contractor shall have no more than a 24 -hour grace period to correct the Regular Finding before Liquidated Damages are assessed. The grace period extends until 11:59 PM on the day after the Inspection Form 105 was issued. The Engineer will issue a Form 105 notifying the Contractor that Liquidated Damages are accruing at $1,500 per day per finding for each full or partial calendar day a Regular Finding remains uncorrected after the 24 - hour grace period. At 11:59 PM on the 2nd day after the Form 105 was issued, each uncorrected, undeferred Regular Finding will be assessed as recalcitrant and the Engineer will issue a project -wide stop work order. The Contractor shall fix each recalcitrant finding and submit a plan to avoid future instances of each recalcitrance to the Engineer for approval. The recalcitrance plan shall be in writing, signed by the Contractor and shall include: (1) Each Recalcitrant Finding. (2) Why the corrective action for each Recalcitrant Finding was not implemented within 2 days. (3) How the Contractor will avoid future recalcitrance. 931Page October 1, 2021 4 REVISION OF SECTION 208 EROSION CONTROL The Engineer will discuss the recalcitrance plan and may meet with the Superintendent to recommend modifications, if needed. The Engineer will issue a Form 105 accepting or rejecting the recalcitrance plan within 24 hours of the Contractor submitting a plan or resubmitting a modified plan. The Contractor will neither be reimbursed for costs incurred to fix each Recalcitrant Finding pertaining to a control measure in the SWMP plan nor costs to prepare the recalcitrance plan. The Contractor shall propose additional control measures, if needed, according to subsection 208.04(a). The project -wide Stop Work Order and Liquidated Damages will be assessed until approval of the corrective action for each Recalcitrant Finding and approval of the Contractor's recalcitrance plan by the Engineer is given. After written approval by the Engineer, the project -wide Stop Work Order will be lifted, and accrual of Liquidated Damages will cease. If the Contractor fails to perform corrective work by the end of the second day, the County shall have the option of utilizing a third -party to complete the corrective work. The Contractor shall be responsible for reimbursing the County the cost of utilizing a third -party to complete the corrective work. The cost for utilizing a third -party to complete the corrective work will be deducted from the month's pay application. If only the retainage release pay application is left to close out the project, the cost of corrective work will be deducted from the retainage release payment. If the retainage release payment does not cover the cost of the corrective work, the Contractor will be invoiced for the outstanding balance. The project acceptance and warranty period will not start until the Contractor has reimbursed the County for the entire cost of the corrective work. Failure by the Contractor to perform corrective work shall be grounds for withholding progress payments. 2. Severe Finding. In response to a Severe Finding, the Engineer will issue Inspection Form 105 and immediately assess Liquidated Damages of $3,500 per Severe Finding. Severe Findings shall not be eligible for the twenty -four-hour grace period (subsection 208.09(b)1). Liquidated damages will accrue at $3,500 per Severe Finding per calendar day beginning at 11:59 PM of day the Inspection Form 105 is issued. (1) If the Severe Finding is a discharge to State waters, the Contractor shall prevent any further discharge and shall reclaim discharge which has not yet entered State waters. The Contractor shall report the discharge to CDPHE in accordance with CDPS-SCP requirements. (2) If the Severe Finding is a discharge outside the LOC that does not enter State waters, the Contractor shall fully reclaim the discharge before it enters State waters and implement relevant CDPS-SCP noncompliance notification procedures. The Engineer may require the Contractor to submit a plan for permanent stabilization of disturbed areas outside the LOC per 208.04(e)4 for approval. Permanent stabilization plans pertaining to Severe Findings and subsequent stabilization activities are not subject to 208.09(b). The Contractor shall not be reimbursed for activities undertaken to reclaim the discharge, stabilize areas outside the LOC and implement relevant CDPS-SCP noncompliance notification procedures. If the Contractor fails to immediately perform corrective work, the County shall have the option of utilizing a third -party to complete the corrective work. The Contractor shall be responsible for reimbursing the County the cost of utilizing a third -party to complete the corrective work. The cost for utilizing a third -party to complete the corrective work will be deducted from the month's pay application. If only the retainage release pay application is left to close out the project, the cost of corrective work will be deducted from the retainage release payment. If the retainage release payment does not cover the cost of the corrective work, the Contractor will be invoiced for the outstanding balance. The project acceptance and warranty period will not start until the Contractor has reimbursed the County for the entire cost of the corrective work. Failure by the Contractor to perform corrective work shall be grounds for withholding progress payments. 94 I P a g e October 1, 2021 5 REVISION OF SECTION 208 EROSION CONTROL 3. Chronic Finding. In response to a Chronic Finding, the Engineer will issue Inspection Form 105 and immediately assess Liquidated Damages of $1,500 per Chronic Finding. Chronic Findings shall not be eligible for the twenty -four-hour grace period (subsection 208.09(b)). Liquidated damages will accrue at $1,500 per Chronic Finding per day beginning at 11:59 PM of day the Inspection Form 105 is issued. When the Chronic Finding is comprised of two Severe Findings, the Engineer will assess Liquidated Damages in accordance with this specification. If the Contractor fails to immediately perform corrective work, the County shall have the option of utilizing a third -party to complete the corrective work. The Contractor shall be responsible for reimbursing the County the cost of utilizing a third -party to complete the corrective work. The cost for utilizing a third -party to complete the corrective work will be deducted from the month's pay application. If only the retainage release pay application is left to close out the project, the cost of corrective work will be deducted from the retainage release payment. If the retainage release payment does not cover the cost of the corrective work, the Contractor will be invoiced for the outstanding balance. The project acceptance and warranty period will not start until the Contractor has reimbursed the County for the entire cost of the corrective work. Failure by the Contractor to perform corrective work shall be grounds for withholding progress payments. (c) Deferment. If the Contractor seeks deferment, the Superintendent shall submit a deferment request to the Engineer by 11:59 PM of the day after the issuance of Inspection Form 105. Chronic and Severe Findings are not eligible for deferment. The deferment request shall be in writing, signed by the Superintendent and shall include: (1) Regular Findings to be deferred (2) The reasons why the Findings cannot be corrected in twenty-four hours (3) An action plan containing: (i) Methodology to protect water quality until each deferred Finding is corrected and accepted (ii) Milestones to measure progress toward completion (iii) Additional control measures to be implemented until each deferred Finding is corrected and accepted (iv) Corrective completion dates for each Finding The Engineer will discuss the deferment request and may meet with the Superintendent to recommend modifications to the action plan. The Engineer will issue a Form 105 accepting or rejecting the deferment request by 11:59 PM of the second day after the Inspection Form 105 documenting the Regular Finding is issued. The County will not accept a deferment for operational error, improperly installed control measures, inadequate control measures, lack of preventative maintenance, careless or improper operation, or other non -proactive reason. Preparation of deferment documentation and additional materials, including additional control measures, required to complete the action plan shall be at the Contractor's expense. Time frames noted in subsection 208.09(b)1 will not be stopped during the deferment review period, therefore, Liquidated Damages will be assessed beginning 11:59 PM on calendar day two if the deferment request is rejected and, furthermore, a rejected deferment plan (subsection 208.09(c)) shall not absolve the Contractor from recalcitrance. The Engineer will assess Liquidated Damages in the amount of $1,500 per calendar day, and partial day, for each uncorrected Deferred Finding. These Liquidated Damages will start on the date the uncorrected work was deferred to be completed (subsection 208.09(c)(3)). In addition, Liquidated Damages of $1,500 per calendar day will be assessed retroactively to 11:59 PM of the day the finding was originally noted on the Inspection Form 105. 95IPage October 1, 2021 6 REVISION OF SECTION 208 EROSION CONTROL (d) Conflict Resolution. Subsections 105.22, 105.23, and 105.24 detail the process through which the parties (Weld County and the Contractor) agree to resolve any issue that may result in a dispute. (e) Exemptions. The Engineer will exempt from subsection 208.09(b) situations of Compliance Assistance, Documented Upset Conditions, Documented Reportable Spills and Documented Winter Exemptions. Release from subsection 208.09(b) does not exempt the Contractor from compliance with CDPS-SCP. 1. Documented Upset Condition. The Contractor shall report, both verbally and in writing, the Upset Condition to CDPHE per CDPS-SCP Part II.L.6 and subsection 208.03(c) and provide written documentation to the Engineer. The Engineer will issue a Form 105 and recognize the exemption to the Regulatory Mechanism. The Contractor shall also update the SWMP with the Form 105 and the documented Upset Condition. 2. Documented Reportable Spills. The Contractor shall report, both verbally and in writing, the Reportable Spill to CDPHE per subsection 107.25(b) and provide written documentation to the Engineer. The Engineer will issue a Form 105 and recognize the exemption to the Regulatory Mechanism. The Contractor shall also update the SWMP with the Form 105 and the documented Reportable Spill. 3. Winter Exemptions. The Contractor is unable to address findings noted on the Headquarters or Region led water quality control inspection due to: (1) Snow covers the entire site for an extended period and; (2) No construction activity and; (3) Melting conditions posing a risk of surface erosion do not exist. The Contractor shall request a Winter Exemption to the Engineer. If approved, the Engineer will issue a Form 105 and recognize the exemption to subsection 208.09(b). The Contractor shall also update the SWMP with the Form 105 and the documented Winter Exemption. Liquidated Damages, if assessed, will only accrue up to the point where the Winter Exemptions are approved. Delete paragraph 2 of Subsection 208.10(c) and replace with the following: 208.10 Items to Be Completed Prior to Requesting Partial Acceptance of Water Quality Work. All punch list and walkthrough items shall be completed and approved by the Engineer. Subsection 208.11 shall include the following: All BMPs measured by the Square Yard (SY) shall not include the required overlap. Delete Subsection 208.11, paragraph 11 and replace with the following: Additional aggregate may be required for maintenance and will be not paid for separately. END OF SECTION 96 I Page October 1, 2021 1 REVISION OF SECTION 209 WATERING AND DUST PALLIATIVES Section 209 of the Standard Specifications is hereby revised for this project as follows: Subsection 209.01 shall be revised to include the following: Application of dust palliative to detour roadways must be completed prior to detouring traffic onto those roadways. Subsection 209.02 shall be revised to include the following: The Contractor is responsible for obtaining a legal source for water to complete the work as specified in the Contract Documents, including any necessary permits or fees. Delete Subsection 209.05 and replace with the following: The Contractor shall furnish and apply a dust palliative on portions of the roadway and on haul roads at the locations and in the amounts as provided in the Contract. Dust palliative shall consist of magnesium chloride (or equivalent as approved by the Engineer) and water. Application of dust palliative shall be done with acceptable sprinkling equipment at an appropriate rate as approved by the Engineer. Magnesium Chloride (or equivalent) dust palliative shall be applied as follows: 1. Weld County crews will prepare the existing roadway surface. 2. Contractor will apply the magnesium chloride dust palliative in two applications of 0.25 gallon per square yard in each application. 3. Allow to soak for 30 minutes after each application. 4. Roll the surface with a pneumatic tire roller, as specified in the Contract. 5. Do not permit traffic on the treated surface until approved. Subsection 209.07, paragraph 1 shall be deleted and replaced with the following: Water required for all work covered under the Contract will not be measured and paid for separately but shall be incidental to the work. END OF SECTION 97 I P a g e October 1, 2021 I REVISION OF SECTIONS 304 AND 703 AGGREGATE BASE COURSE Section 304 of the Standard Specifications is hereby revised for this project as follows: Subsection 304.01 shall include the following: This work consists of furnishing and placing aggregate as shouldering material adjacent to the edges of pavement. This work consists of furnishing and placing aggregate as surface material on the gravel roadways as designated in the plans. Aggregate Base Course (RAP) consists of hauling to the site and placing one or more courses of asphalt millings on a prepared surface in conformity with the lines, grades, and typical sections shown on the plans or established. Equipment used in grade control of the base course shall be rubber tired or soft track to protect the against gradation breakdown. A steel tracked dozer shall not be used for grade control. Pneumatic and/or steel wheel vibratory rollers shall be used to achieve compaction of the aggregate base course. Subsection 304.02 shall include the following: Materials for the base course shall be Aggregate Base Course (Class 6) as shown in subsection 703.03. The aggregate base course (Class 6) must meet the gradation requirements and have a resistance value of at least 69 when tested by the Hveem Stabilometer method. Materials for Aggregate Base Course (Shouldering) shall meet all the requirements for Class 6. Materials for Aggregate Base Course (Surface Gravel) shall meet all the requirements in Section 703.03. Approval of the surface gravel will be contingent on material meeting the requirements in Table 703-3. The material shown on the plans as Aggregate Base Course (RAP) may be generated on site from item 202 — Removal of Asphalt Met (Planing). Should the Contractor elect to supply any or all the Aggregate Base Course (RAP) from a Contractor source, then this material shall meet the requirements of subsection 703.03 Subsection 304.03 shall include the following: Commercial Mineral Fillers will not be allowed in Aggregate Base Course (Shouldering) or in Aggregate Base Course (Surfacing). Subsection 304.04 shall include the following: A device capable of placing the shouldering material in its final position shall be used. The device is subject to the Engineer's approval. Dumping of shouldering material on the roadway surface will not be permitted. Any roadway and/or shoulder damage shall be removed by milling 2 inches of material from the roadway and replacing it to the nearest longitudinal or transverse joint at no additional cost to the Owner. Subsection 304.06 shall include the following: Shouldering material shall be compacted initially after placement with approved rubber -tired equipment. Shouldering material shall be wetted to achieve proper moisture content and shall achieve a compacted density of at least 95% of the modified proctor maximum density value. A water truck and or loaded bucket loader can be used for wheel rolling compaction on shoulder material. A heavy plate tamper may be needed. Subsection 304.07 shall be deleted and replaced with the following: The Contractor shall be aware that the plan quantities are based upon unit weight and in -place density, as describe in the Plans. The Contractor's bid unit cost shall account for differing unit weights intended to be furnished to the project as no quantity adjustments will be made for differing unit weights. The Project Inspector will verify that the plan quantity has been incorporated into the project utilizing information from delivery tickets furnished by the 98 ( P a g e October 1, 2021 2 REVISION OF SECTIONS 304 AND 703 AGGREGATE BASE COURSE material supplier. Failure to comply with the requirements of this subsection shall be grounds for withholding of progress payments. At the sole discretion of Weld County, failure to comply with the requirements of this subsection shall be grounds for replacement of damaged roadway sections by the contractor at no cost to the County. Subsection 304.08 shall include the following: Pay Item Pay Unit Aggregate Base Course (Shouldering) Ton Aggregate Base Course (Surface Gravel) Ton Aggregate Base Course (Class 6) Ton Section 703 of the Standard Specifications is hereby revised for this project as follows: Subsection 703.03 Table 703-2 shall be deleted and replaced with the following: Table 703-2 CLASSIFICATION FOR AGGREGATE BASE COURSE Sieve Designation Mass Percent Passing Square Mesh Sieves LL not greater than 35 LL not greater than 20 Standard mm Mesh in Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Surface Gravel 150.00 6 100 100.00 4 100 75.00 3 95-100 63.00 2% 100 50.00 2 95-100 100 37.50 1 % 90-100 100 100 25.40 1 95-100 100 100 90-100 19.00 % 50-90 95-100 12.50 !Z 55-80 4.76 No. 4 30-65 30-50 30-70 30-65 45-65 2.38 No. 8 25-55 20-85 33-53 0.42 No. 40 15-35 0.07 200 3-15 3-15 Max.; 3-12 3-15 3-12 5-15 4-15 Plasticity Index 6 Max. 6 Max. 6 Max. 6 Max. 6 Max. 6 Max. 6 Max. 4-12 LA wear test (T96) 50 M Max. 50 Max. 40 Max. NOTE: Class 3 material shall consist of bank or pit run material END OF SECTION 99 I P a g e October 1, 2021 I REVISION OF SECTION 401 PLANT MIX PAVEMENTS - GENERAL Section 401 of the Standard Specifications is hereby revised as follows: Subsection 401.02(a), add paragraph (4) to include the following: (4) The job -mix formula for Pavement shall be established by a testing laboratory approved by the County and at the Contractor's expense. Copies of all test data shall be provided to and approved by the County prior to construction. Subsection 401.02(b), paragraph 2 shall include the following: After the Form 43 is executed, and all ingredients are available on the project, the Contractor shall notify the Engineer a minimum of one working day in advance of beginning production of the hot mix asphalt. Any changes in the Form 43 will require the same notification unless otherwise approved by the Engineer. Subsection 401.17, first paragraph, shall be modified to include the following: If the Contractor can demonstrate to Weld County that all the manufacturer's recommendations were followed and the pneumatic tire roller is detrimental to the finished surface of the HMA, the Contractor may request Weld County to waive the pneumatic tire roller requirement. Pneumatic tire rollers shall not be used on SMA pavement. Steel wheel rollers shall not be used in vibratory mode when compacting HMA or SMA on bridge decks. END OF SECTION 1001 Page October 1, 2021 1 REVISION OF SECTION 403 HOT MIX ASPHALT Section 403 of the Standard Specifications is hereby revised for this project as follows: Subsection 403.02 shall include the following: The design mixes for hot mixes asphalt shall conform to the following: Table 403-1 Property Test Value for Grading Method SX S S SG Patching PG 44-28 (PG 76-28) (PG 64-28) PG 64-22 Air Voids, percent at: CPL 5115 3.5-4.5 3.5 — 4.5 3.5-4.5 3.5-4.5 3.5-4.5 N (design) Lab Compaction (Revolutions): CPL 5115 100 100 100 100 100 N (design) Stability, minimum CPL 5106 30 30 30 30 30 Aggregate Retained on the 4.75 mm (No. 4) Sieve for S, SX and SG, and on the 2.36mm (No. 8) Sieve for CP 45 60% 60% 60% 90% 60% ST and SF with at least 2 Mechanically Induced fractured faces, % minimum* Accelerated Moisture Susceptibility Tensile CPL 5109 80 80 80 80 80 Strength Ratio (Lottman), Method B minimum Minimum Dry Split Tensile CPL 5109 205 (30) 205 (30) 205 (30) 205 (30) 205 (30) Strength, kPa (psi) Method B Grade of Asphalt Cement, PG 64-28 PG 76-28 PG 64-28 Top Layer Grade of Asphalt Cement, PG 64-22 PG 64-22 Layers below Top Voids in the Mineral Aggregate (VMA) % CP 48 See Table See Table See Table See Table See Table 403-2 403-2 403-2 403-2 403-2 minimum Voids Filled with Asphalt Al MS -2 65-75 65-75 65-75 65-75 65-75 VFA), % Dust to Asphalt Ratio 0.6-1.2 0.6-1.2 0.6-1.2 0.6-1.2 0.6-1.2 Fine Gradation CP 50 0.8-1.6 0.8-1.6 0.8-1.6 0.8-1.6 0.8-1.6 Coarse Gradation Note: Al MS -2 = Asphalt Institute Manual Series 2 Mixes with gradations having less than 40% passing the 4.75 mm (No. 4) sieve shall be approached with caution because of constructability problems. Gradations for mixes with a nominal maximum aggregate size of one -inch or larger are considered a coarse gradation if they pass below the maximum density line at the #4 screen. Gradations for mixes with a nominal maximum aggregate size of 3/4" to 3/8" are considered a coarse gradation if they pass below the maximum density line at the #8 screen. Gradations for mixes with a nominal maximum aggregate size of #4 or smaller are considered a coarse gradation if they pass below the maximum density line at the #16 screen. *Fractured face requirements for SF may be waived by RME depending on project conditions. 101IPage October 1, 2021 2 REVISION OF SECTION 403 HOT MIX ASPHALT All mix designs shall be run with a gyratory compaction angle of 1.25 degrees and properties must satisfy Table 403-1. Form 43 will establish construction targets for Asphalt Cement and all mix properties at Air Voids up to 1.0 percent below the mix design optimum. Table 403-2 Minimum Voids in the Mineral Aggregate (VMA) Nominal Maximum Size*, mm (inches) ***Design Air Voids ** 3.5% 4.0% 4.5% 5.0% 37.5(1%) 11.6 11.7 11.8 N/A 25.0(1) 12.6 12.7 12.8 190(%) 13.6 13.7 13.8 12.5 (%) 14.6 14.7 14.8 95(%) 15.6 15.7 15.8 16.9 The Nominal Maximum Size is defined as one sieve larger than the first sieve to retain more than 10%. Interpolate specified VMA values for design air voids between those listed. * Extrapolate specified VMA values for production air voids beyond those listed. The Contractor shall prepare a quality control plan outlining the steps taken to minimize segregation of HMA. This plan shall be submitted to the Engineer and approved prior to beginning the paving operations. When the Engineer determines that segregation is unacceptable, the paving shall stop and the cause of segregation shall be corrected before paving operations will be allowed to resume. The hot mix asphalt for the lower lifts may contain up to 20% reclaimed asphalt pavement if approved by the Engineer. The hot mix asphalt for the top lift shall not contain any reclaimed asphalt pavement unless approved by the Engineer. A minimum of 1 percent hydrated lime by weight of the combined aggregate shall be added to the aggregate for all hot mix asphalt when determined by the Engineer. Acceptance samples shall be taken in accordance with CP-41, as determined by the Engineer and/or Inspector. Subsection 403.03 shall include the following: The Contractor shall construct the work such that all roadway pavement placed prior to the time paving operations end for the year, shall be completed to the full thickness required by the plans. The Contractor's Progress Schedule shall show the methods to be used to comply with this requirement. If liquid anti -stripping additive is added at the plant, an approved in -line blender must be used. The blender shall be in the line from the storage tank to the drier drum or pugmill. The blender shall apply sufficient mixing action to thoroughly mix the asphalt cement and anti -stripping additive. Delete subsection 403.05 and replace with the following: 403.05 The accepted quantities of hot mix asphalt will be paid for in accordance with subsection 401.22, at the contract unit price per ton for the bituminous mixture. 102 1 Page October 1, 2021 3 REVISION OF SECTION 403 HOT MIX ASPHALT Payment will be made under: Pay Item Pay Unit Hot Mix Asphalt (Grading S)(100)(PG 64-28) Ton Hot Mix Asphalt (Grading S)(100)(PG 64-22) Ton Hot Mix Asphalt (Grading SX)(1 00)(PG 64-28) Ton Hot Mix Asphalt (Patching)(Asphalt) Ton Aggregate, asphalt recycling agent, additives, hydrated lime, and all other work necessary to complete each hot mix asphalt item will not be paid for separately, but shall be included in the unit price bid. When the pay item includes the PG binder grade, the asphalt cement will not be measured and paid for separately, but shall be included in the work. When the pay item does not include the PG binder grade, asphalt cement will be measured and paid for in accordance with Section 411. Asphalt cement used in Hot Mix Asphalt (Patching) will not be measured and paid for separately, but shall be included in the work. Excavation, preparation, and tack coat of areas to be patched will not be measured and paid for separately, but shall be included in the work. The Contractor shall collect the scale ticket on each load when it is delivered to the project site and ensure that the information required in subsection 109.01 is shown on each ticket. The scale tickets shall be available on site for County personnel to inspect. Each day, the Contractor shall provide to the County, envelopes which contain the previous day's signed tickets and the following: A. On each envelope: Project number, location, date of paving, type of material, daily total and cumulative total B. One of the following: 1. Two adding machine tape tabulations of the weight tickets with corresponding total run and signed by two different persons, 2. One signed adding machine tape tabulation of the weight tickets that has been checked and signed by a second person, or 3. Signed check tape of computer scale tickets that have a cumulative total. These scale tickets must be consecutive and without voids or adjustments. C. A listing of any overweight loads on the envelope, including ticket numbers and amount over legal limit. D. A comparison of the actual yield for each day's placement to the theoretical yield. Theoretical yield shall be based on the actual area paved, the planned thickness, and the actual density of the mixture being placed. Any variance greater than +2.5% shall be indicated on the envelope and a written explanation included. END OF SECTION 103 1 Page October 1, 2021 1 REVISION OF SECTION 411 ASPHALT MATERIALS Section 411 of the Standard Specifications is hereby revised as follows: Delete Subsection 411.05 and replace with the following: Bituminous materials will not be measured and paid for separately but shall be included in the unit prices bid for Hot Mix Asphalt (Grading SX)(100)(PG 64-28), and Hot Mix Asphalt (Grading S)(100)(PG 64-22). END OF SECTION 1041 Page October 1, 2021 1 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT Sections 412 and 705 of the Standard Specifications are hereby revised for this project as follows: Subsection 412.01 shall include the following inserted prior to the first sentence. Where the Contract Documents, Project Special Provisions, or the CDOT Specifications contradict one another, the more stringent specification shall apply. Notwithstanding the foregoing, in the event of conflicting requirements involving any requirement within the Contract Documents, Project Special Provisions, or the CDOT Specifications, the County shall have the right to determine, in its sole discretion, which requirement(s) apply. The Contractor shall request the County's determination respecting the order of precedence among conflicting provisions promptly upon becoming aware of any such conflict. Subsection 412.03 shall be deleted and replaced with the following: Class P concrete shall conform to the requirements for an optimized mix design and shall be in accordance with Section 601.02. The optimized gradation shall also be in accordance with Section 106.06(a). The strength of the concrete shall be considered acceptable when the average equivalent 28 -day flexural strengths for each lot are above the "Specified Flexural Strength," of 650 psi for both the plan value and the lower tolerance limit (Table 105-5). In addition, no individual set (two specimens per sublot) in the lot is 25 psi or more below the equivalent "Specified Flexural Strength." If any lot or sublot, respectively, fails to meet the above criteria, the lot or sublot shall be removed and replaced at no additional cost. ACI 318 cannot be used to dispute acceptance strength results. Evaluation of low strength test results shall follow CP65 Method B. Subsection 412.04 shall be deleted and replaced with the following: (a) The maximum allowable amount of Fly Ash shall be 20%. Class F fly ash shall be used. Cement shall be Type I -II. (b) Proportioning shall conform to the requirements of subsection 601.05 in addition to the requirements below: (1) Mixture Proportions (i) Composition Concrete shall be composed of cementitious material, water, fine and coarse aggregates, and admixtures. Supplementary Cementitious Materials (SCM) choice and usage shall be in accordance with Section 601 of the Specifications. The total cementitious material content shall be at least 520 LB/CY. Admixtures shall consist of air -entraining admixture and also may include as approved, water -reducing admixture. (ii) Proportioning Studies Trial design batches, mixture proportioning studies, and testing requirements are the responsibility of the Contractor. Trial mixtures having proportions, slumps, and air content suitable for the work shall be based on methodology described in ACI 211.1, modified as necessary to accommodate flexural strength. Submit test results, including: 1. Coarse and fine aggregate gradations and plots; 2. Combined aggregate gradation and coarseness/workability plots; 3. Coarse aggregate quality test results, including deleterious materials; 4. Fine aggregate quality test results; 105 1 Page October 1, 2021 2 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT 5. Mill certificates for cement and supplemental cementitious materials; 6. Certified test results for air entraining, water reducing, retarding, non -chloride accelerating admixtures; 7. Specified flexural strength, slump, and air content; 8. Documentation of required average CQC flexural strength, Ra; 9. Recommended proportions/volumes for proposed mixture and each of three trial water- cementitious materials ratios; 10. Individual beam and cylinder breaks; 11. Flexural and compressive strength summaries and plots; 12. Correlation ratios for acceptance testing and CQC testing; and 13. Historical record of test results documenting production standard deviation (if available) (iii) Water -Cement Ratio At least three different water -cement ratios, which shall produce a range of strengths encompassing that required on the project, shall be used. The maximum allowable water - cement ratio shall be in accordance with Table 601-1 of the Specifications. Laboratory trial mixtures shall be proportioned for maximum permitted slump and air content. (2) Trial Mixture Studies Separate sets of trial mixture studies shall be made for each combination of cementitious materials and each combination of admixtures proposed for use. No combination of either shall be used until proven by such studies, except that, if approved in writing and otherwise permitted by these specifications, an accelerator or a retarder may be used without a separate trial mixture study. If the Contractor is manufacturing these mixes and they are not on the CDOT approved mix design list (APL), separate trial mixture studies shall be made for concrete for each placing method (slip form, fixed form, or hand placement) proposed. The temperature of concrete in each trial batch shall be reported. Each mixture shall be designed to promote easy and suitable concrete placement, consolidation and finishing, and to prevent segregation and excessive bleeding. (3) Mixture Proportioning for Flexural Strength The following step-by-step procedure shall be followed: 1. Fabricate all beams and cylinders for each mixture from the same batch or blend of batches. Fabricate and cure all beams and cylinders in accordance with ASTM C 192/C 192M, using 6" x 6" steel beam forms and 6" x 12" single -use cylinder forms. 2. Cure test beams from each mixture for 3-, 7-, 14-, and 28 -day flexural tests; six beams to be tested per age. 3. Cure test cylinders from each mixture for 3-, 7-, 14-, and 28 -day compressive strength tests; six cylinders to be tested per age. 4. Test beams in accordance with ASTM C 78, cylinders in accordance with ASTM C 39/C 39M. 106 1 Page October 1, 2021 3 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT Using the average strength for each water -cement blend at each age, plot all results from each of the three mixtures on separate graphs for water -cement blend versus: (a) 3 -day flexural strength (b) 7 -day flexural strength (c) 14 -day flexural strength (d) 28 -day flexural strength (e) 3 -day compressive strength (f) 7 -day compressive strength (g) 14 -day compressive strength (h) 28 -day compressive strength 6. From these graphs, select a water -cement blend that shall produce a mixture giving a 28 -day flexural strength equal to 700 psi for laboratory mix designs and 650 psi for production mix designs. 7. Using the above -selected water -cement blend, select from the graphs the expected 3-, 7-, 14-, and 28 -day flexural strengths and the expected 3-, 7-, 14-, and 28 -day compressive strengths for the mixture. 8. From the above -expected strengths for the selected mixture, determine the following Correlation Ratios: (a) Ratio of the 14 -day compressive strength of the selected mixture to the 28 -day flexural strength of the mixture (for acceptance). (b) Ratio of the 7 -day compressive strength of the selected mixture to the 28 -day flexural strength of the mixture (for Contractor process control). 9. If there is a change in materials, additional mixture design studies shall be made using the new materials and new Correlation Ratios shall be determined. 10. No concrete pavement shall be placed until the Contracting Officer has approved the Contractor's mixture proportions. The approved water-cementitious materials ratio shall not exceed the maximum value of 0.44 and shall not be increased without the County's written approval. (4) Average CQC Flexural Strength Required for Mixtures To ensure meeting the strength requirements specified above, during production, the mixture proportions selected during mixture proportioning studies and used during construction shall produce a required average CQC flexural strength exceeding the specified strength, R, by the amount indicated below. This required average CQC flexural strength, Ra, shall be used only for CQC operations as specified above and as specified in the previous paragraph. During production, the required Ra shall be adjusted, as appropriate and as approved, based on the standard deviation of equivalent 28 -day strengths being attained during paving. From Previous Test Records: Where a concrete production facility has previous test records current to within 18 months, a standard deviation shall be established in accordance with the applicable provisions of ACI 214R. Test records from which a standard deviation is calculated shall represent materials, quality control procedures, and conditions similar to those expected, shall represent concrete produced to meet a specified flexural strength or strengths within 50 psi of the 28 -day flexural strength specified for the proposed work, and shall consist of at least 30 consecutive tests. Perform verification testing, as directed by the Contracting Officer, to document the current strength. A strength test shall be the average of the strengths of two specimens made from the same sample of concrete and tested at 28 days. Required average CQC flexural strength, Ra, used as the basis for selection of concrete proportions shall be the value from the equation that follows, using the standard deviation as determined above: 107 I P a g e October 1, 2021 4 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT Ra=R+1.34S Where: S = standard deviation R = specified flexural strength (minimum 650 psi) Ra = required average flexural strength Where a concrete production facility does not have test records meeting the requirements above but does have a record based on 15 to 29 consecutive tests, a standard deviation shall be established as the product of the calculated standard deviation and a modification factor from Table 412-01. TABLE 412-01 Modification Factor for Concrete Production Facilities with Consecutive Tests Number of Tests Modification Factor for Standard Deviation 15 1.16 20 1.08 25 1.03 30 or more 1.00 Without Previous Test Records: When a concrete production facility does not have sufficient field strength test records for calculation of the standard deviation, the required average strength, Ra, shall be determined by adding 15 percent to the specified flexural strength, R. Consolidation Testing: The provisions relating to the frequency and amplitude of internal vibration shall be considered the minimum requirements and are intended to ensure adequate density in the hardened concrete. If a lack of consolidation of the concrete is suspected by the Weld County Project Manager, additional referee testing shall be required. Referee testing of hardened concrete shall be performed by cutting cores from the finished pavement after a minimum of 24 hours for curing. Density determinations shall be made based on the water content of the core as taken. ASTM C642 shall be used for the determination of core density in the saturated -surface dry condition. Failure to meet the above requirements shall be considered evidence that the minimum requirements for vibration are inadequate for the job conditions, and additional vibrating units or other means of increasing the effect of vibration shall be employed so that the density of the hardened concrete as indicated by further referee testing shall conform to the above -listed requirements. All failing concrete shall be removed and replaced. Subsection 412.13 shall be revised include the following: Transverse and untied longitudinal joints shall be sawed and sealed as shown in the following diagram for preformed compression seals. Installation shall conform to subsection 412.18, as revised for this project, and the compression seal and lubricant materials shall conform to subsection 705.01, as revised for this project. Subsection 412.13(b)(1) shall be revised to include the following: If tie bars are inserted into plastic concrete with a tie bar insertion machine, tie bar location and concrete consolidation shall be subject to the following additional requirements: 1. Each 2500 linear feet of longitudinal weakened plane joint resulting from the procedure shall have one random location cored where the core intercepts an inserted tie bar. The core shall be six-inch diameter taken in the presence of the Engineer. 108IPage October 1, 2021 5 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT 2. If non -consolidated concrete is evident above the inserted tie bar, the Contractor shall cease paving operations and submit a corrective action plan in writing for approval. Correction of the joint and further paving shall take place only after written approval of the corrective action plan has been provided by the Engineer. Additional coring may be required, as directed by the Engineer. Coring operations, including patching, shall be at the Contractor's expense. 3. Further failure to consolidate the concrete over the tie -bars shall be justification to preclude the use of the automatic tie -bar insertion for the remainder of the project. Subsection 412.14 shall be revised to include the following: All references to "curing compound" shall be changed to "curing and sealing compound" for highway use. The "curing and sealing compound" shall be approved by Weld County 14 days prior to use. Subsection 412.18 shall be revised to include the following: Before installation of the preformed compression seal the following shall be completed: 1. Repair of defective pavement slabs and repair and proper curing of cracks or spalls in accordance with subsection 412.16. 2. Corrective work for texturing. 3. Corrective work for smoothness in accordance with subsection 105.08. Air temperature at the time of installation shall be from 40 to 80 °F or as recommended by the manufacturer. The joint shall be air cleaned with oil free air at 100 psi minimum just before seal installation. The preformed compression seal shall have an uncompressed width of "/16 inch. Installation shall be in conformance with the following diagram and shall follow the manufacturers recommendations. A machine shall be used for installation which results in proper depth of the seal without damage or twisting of the seal. Elongation during installation shall not exceed 5 percent. Subsection 412.23 shall be revised to delete the first paragraph and replace with the following: The quantities of Concrete Pavement to be paid for under these items shall be the number of square yards completed and accepted. The width of measurement shall be the width of the new pavement to the outside edge of the shoulder shown on the typical cross section of the plans, not including any additional width for pavement safety edges. The width for measurement includes additional widening where called for, or as otherwise directed by the Engineer in writing. The length shall be measured horizontally along the centerline of each roadway or ramp. Subsection 412.24 shall be revised to include the following: Construction of Pavement safety edges shall not be measured and paid separately but shall be included in the work for Concrete Pavement. Subsection 412.25 shall be added immediately following 412.24 and shall include the following: (a) Warranty Period and Procedures A two-year warranty period shall apply to all Portland Cement Concrete Pavement (PCCP) incorporated into the project. The warranty period shall begin on the date Final Acceptance is issued by the County. Any PCCP which does not meet the contract specifications, prior to or throughout the warranty period, or has visible deficiencies or failures, shall be removed and replaced at the Contractor's expense. 109 I P a g e October 1, 2021 6 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT The PCCP shall be inspected by County staff on a 6 -month basis during the warranty period. If deficiencies become apparent during the warranty period, the County shall prepare a warranty letter with a detailed description of the PCCP which has to be removed and replaced. The County and Contractor shall then meet to finalize the list of deficiencies to be addressed, the construction methods to be utilized, and the timing of the warranty work to be completed. In such case that the Contractor refuses to participate in this procedure, after a non -responsive period of 30 day, the County shall arrange with a qualified contractor of their choosing to compete the warranty work. The Contractor shall be liable for all costs. The PCCP deficiencies include but is not limited to the following: 1. Pavement panels containing one or more cracks through the full depth of the panel resulting in separating the panel into two or more parts. 2. Pavement panels containing excessive honeycombed areas that result in spalling of the PCCP or pooling of drainage water. 3. Pavement panels which contain any voids greater in depth than one-half of the PCCP total thickness. 4. Pavement panels which do not meet the minimum smoothness testing requirements. 5. Joints which are spalled over 50% of their length. 6. 7. Pavement panels which do not meet the specified grades in the plans or have any areas which drainage water pools on the surface to a depth of greater than 0.5 inches. Any PCCP removed shall be replaced with new PCCP meeting the original project specifications, depth, color, and finish. Any replacement panel shall be tested and verified to obtain adequate strength prior to allowing traffic on it. In the case of PCCP panel replacement associated with the one- year warranty period, a new one- year warranty period shall commence on the date which the replacement panel construction is accepted by the County. Subsection 705.01 shall include the following: (b) Preformed Compression Seals. Preformed compression seals shall conform to AASHTO M 220. The lubricant adhesive used for installation of the preformed compression seal shall conform to ASTM 02835. The Contractor shall provide the Engineer with certified test reports that indicate conformance of the preformed compression seals and lubricant adhesive with these specifications before installation begins. 1101 Page October 1, 2021 7 REVISION OF SECTION 412 AND 705 PORTLAND CEMENT CONCRETE PAVEMENT JOINT SHAPE AND JOINT FILLER DETAILS FOR TRANSVERSE SAWED CONTRACTION JOINT AND UNTIED LONGITUDINAL CONTRACTION JOINT TOP OF 3/8"_.-I 1/8" I f* H J1/4" M JOINT SEAL 11/16" JNCOMPRESSED NIDTH *Saw Depth T/4 for transverse sawed contraction joint T/3 for untied longitudinal contraction joint Where: T = pavement thickness Tolerances of all joint width dimensions: 0 to +1/16 inch Installation of preformed compression joint seals shall be in accordance with manufacturer's recommendations. The joint locations, spacing, and general notes on the standard for concrete pavement joints for this project shall apply. All materials and installation required for compression joint seals shall be included in the work. All other joints shall be constructed in accordance with standard specifications. END OF SECTION 1111Page October 1, 2021 1 REVISION OF SECTIONS 420 AND 712 GEOSYNTHETICS Section 420 of the Standard Specifications is hereby revised for this project as follows: Subsection 420.01 shall include the following: This work includes furnishing and installing geosynthetic material over unsuitable subgrade materials in accordance with these specifications and the details shown on the plans. Subsection 420.02 shall include the following: Geotextile (Separator)(Class 1) shall meet the requirements of subsection 712.08, including Table 712-2a. The aggregate fill to be placed over the top of the geosynthetic material shall meet all the specifications of Aggregate Base Course (Class 6). Subsection 420.06 shall include the following: Geotextile Separator (Drainage)(Special) shall meet the requirements of subsection 712.08 and Table 712-b. Subsection 420.07 shall be deleted and replaced with the following: Geotextile shall be installed as follows: Subgrade Preparation: Clear, grub and excavate (as required) to the plan subgrade or undercut elevation, stripping topsoil, deleterious debris and unsuitable material from the site. Cut stumps and other projecting vegetation as close and even to the ground surface as practical. Specialized equipment with low ground pressure, as directed by the Engineer, may be required for very soft soils (CBR ≤ 1.5%) to minimize subgrade disturbance. In addition, it may also be beneficial to leave root mats in place in such instances. The surface of the subgrade should be relatively smooth and level, and depressions or humps greater than 6 inches should be graded out. Geosynthetic Deployment: The geosynthetic reinforcement shall be placed directly on the prepared subgrade. It should be rolled out flat and tight with no folds or wrinkles. Unroll the geosynthetic in the direction of travel so that the machine direction (i.e., long axis) of the roll is parallel with channelized traffic patterns. Adjacent rolls should be overlapped along their sides and ends as a function of subgrade strength as follows: If the need for 40" inches of overlap is reached, it is strongly suggested that the overlap is sewn or otherwise adhered to limit the potential formation of a slip plane between the overlapped panels. Note: very heavy loading and very soft subgrades will also warrant sewn seams instead of overlapping panels. Prior to fill placement, the geosynthetic can be held in place using U-shaped sod staples or simply by strategically placing shovelfuls of the fill to weigh down the geosynthetic. Overlap the geosynthetics in the direction fill will be spread to avoid peeling -back of the geosynthetic at overlaps by the advancing fill. Cut and overlap the geosynthetic to accommodate curves. Cutting may be done with sharp shears, razor knives or handheld power (i.e., "cutoff') saws. Cut the geosynthetic to conform to immovable protrusions, such as manhole covers and vertical utilities. Overlap lengths will not be paid for separately but will be considered subsidiary to item 420. 112IPage October 1, 2021 2 REVISION OF SECTIONS 420 AND 712 GEOSYNTHETICS Fill Placement: Aggregate fill, as specified, should be placed directly over the geosynthetic in 8 - 12 -inch loose lifts. Typically, if the design section thickness is ≤ 16 inches, the entire section should be placed and compacted in one single lift to minimize further degradation of the subgrade. On relatively competent subgrades (CBR ≥ 4%), standard, highway -legal, rubber -tired vehicles (end dumps and belly dumps) may be driven over the exposed geosynthetic at slow speeds (less than 5 mph), and in straight paths. These vehicles can dump aggregate fill as they advance, provided this construction traffic will not cause significant rutting upon bare subgrade. Sudden braking, sudden starting and sharp turning should be avoided. Tracked construction equipment must not be operated directly upon the exposed geosynthetic. A minimum aggregate fill thickness of 6 inches is required prior to operation of tracked equipment on the geosynthetic. In addition, turning of tracked equipment should be kept to a minimum to prevent tracks from displacing the fill and damaging the geosynthetic. Over softer subgrades (CBR < 4%), aggregate fill should be end -dumped from the edge of the previously placed material, spreading from the middle outward. Compaction: Standard compaction methods may be used unless the soils are very soft (CBR ≤ 1.5%). In such cases, static compaction with a light smooth drum roller is considered prudent. Installation and Repairs for Damaged Areas: Repairs to roadway reinforcement geosynthetics can be made in the field by placing a repair panel or patch over the damaged area. The repair panel should extend a minimum of 3 ft beyond the edges of the damaged geosynthetics. Pullout and/or direct sliding calculations should be performed by the project engineer to verify the minimum required overlap length to meet a specific project's requirements. Geotextile that is damaged after placement shall be removed and replaced at the Contractor's expense. Subsection 420.09 shall include the following: Geotextile (Separator)(Class 1) will be measured in place by the square yard of surface area, completed and accepted. Subsection 420.10 shall include the following: Geotextile Separator (Drainage)(Special) shall be included in the cost (subsidiary) of the riprap pay item. Payment will be full compensation for all work and materials required to complete the item. Subsection 712.08 shall include the following: The material for Geotextile (Separator)(Class 1) shall meet the properties in Table 712-2a. Mirafi RS580i or approved equal will meet this classification. 113 1 Page October 1, 2021 3 REVISION OF SECTIONS 420 AND 712 GEOSYNTHETICS Table 712-2a ieotextiie fseoaratoruciass'ii - i�nvsicai ana mecnanicai rorooerues Physical Properties Unit Typical Values Roll Length (minimum) Feet 300 Roll Width (minimum) Feet 15 Roll Area (minimum) Sq. Yd. ` 500 Mechanical Properties Test Method Unit Minimum Average Roll Value STRENGTH Tensile Modulus @ 2% strain (CD) ASTM 04595 lbs/ft 1,800 Tensile Modulus @ 5% strain (CD) ASTM 04595 lbs/ft 4,380 HYDRAULIC Flow Rate .' ASTM D4491 gal/min/ft2; 75 Permittivity ASTM D4491 sec -1 1.0 SOIL RETENTION; Apparent Opening Size (AOS) ASTM 04751 U.S. Sieve 40 Pore Size 095 ASTM D6767 microns , 337 Pore Size 050 ASTM D6767 microns 192 SOIL INTERACTION Interaction Coefficient ASTM 06706 -- 0.9 Factory Sewn Seam, ASTM 04884 lbs/ft 3,000 UV Resistance (at 500 hours) ASTM D4355 % strength retained 90 1141 Page October 1, 2021 4 REVISION OF SECTIONS 420 AND 712 GEOSYNTHETICS The material for Geotextile Separator (Drainage)(Class 1) shall meet the properties in Table 712-2b. Mirafi FW-300 or approved equal will meet this classification. Table 712-2b Geotextile Separator Drains e S ecial - Ph sical and Mechanical Properties Physical Properties Unit Typical Values Roll Length (minimum) Feet 300 Roll Width (minimum) Feet 12.5 Roll Area (minimum) Sq. Yd. 417 Mechanical Properties Test Method Unit Minimum Average Roll Value STRENGTH Grab Tensile Strength ASTM D4632 lbs 400 (MD) 335 (CD) Grab Tensile Elongation ASTM D4632 % 20(MD)15(CD) Trapezoid Tear Strength ASTM 04533 lbs 145 (MD) 125 (CD) CBR Puncture Strength ASTM D6241 lbs 1,250 HYDRAULIC Flow Rate ASTM D4491 galfmin/ft2 115 Permittivity ASTM 04491 sec-' 1.5 Percent Open Area COE-02215 % 8 SOIL RETENTION Apparent Opening Size (AOS) ASTM O4751 U.S. Sieve 30 SOIL INTERACTION UV Resistance (at 500 hours) ASTM D4355 % strength retained 90 END OF SECTION 115 I P a g e October 1, 2021 I REVISION OF SECTION 506 BURIED RIPRAP Section 506 of the Standard Specifications is hereby revised for this project as follows: Subsection 506.01 shall be revised as follows: This work consists of the construction of riprap and installation of geotextile separator(drainage)(special) in accordance with the Specifications and Plans. The installation of the geotextile shall be considered subsidiary to the riprap construction and no separate payment shall be made. Delete Subsection 506.02, paragraph 2 and replace with the following: Material used for riprap may be approved by the Engineer or Inspector if, by visual inspection, the rock is determined to be sound and durable. Prior to delivering this material to the jobsite, the Contractor shall supply laboratory testing data from the supplier, for approval by the Engineer indicating the material meets the requirements for abrasion resistance or compressive strength as indicated in Table 506-1. Subsection 506.02 shall be revised to include the following: Riprap that is not to be buried shall be a minimum of the nominal stone size (d50) of 12 inches or as called out in the plans and shall conform to the gradation requirements of Table 506-2 in the Specifications. Granular Bedding (Class A) shall be a porous, free -draining sand, gravel, or crushed stone and conform to the gradation in Table 506- 3 (below). Prior to delivering material to the jobsite, the Contractor shall supply laboratory testing data from the supplier, for approval by the Project Inspector. Mirafi FW-300 or approved equivalent shall be placed below the granular bedding per the Plans and Specifications. Table 506-3. Granular Bedding (Class A) Granular Bedding Gradation U.S. Standard Sieve Size % Passing, By Weight 3" 90-100 1'/" - 3/4" 20-90 3/8" - #4 0-20 #16 - #50 - #100 - #200 0-3 Riprap that is to be buried shall be a minimum of the nominal stone size (d5o) of 12 inches or as called out in the plans and shall conform to the gradation requirements of Table 506-2 in the Specifications. Prior to delivering material to the jobsite, the Contractor shall supply laboratory testing data from the supplier, for approval by the Project Inspector. Mirafi FW-300 or approved equivalent shall be placed below the granular bedding per the Plans and Specifications. Subsection 506.03 shall be revised to include the following: Buried Riprap 1. Adjacent stockpiles of riprap and soil shall be created and mixing done at the stockpile location, not at the location where soil riprap is to be placed. 2. Mix thirty-five percent (35%) soil by volume with stockpiled riprap, using additional moisture and control procedures that ensure a homogenous mixture; where the soil fills the inherent voids in the riprap without displacing riprap. 116 1 Page October 1, 2021 2 REVISION OF SECTION 506 BURIED RIPRAP 3. Channel slope or other areas that are to be protected with soil/buried riprap shall be free of brush, trees, stumps, and other objectionable material and be graded to a smooth compacted surface as shown on the Plans. 4. Contractor shall excavate areas to receive soil/buried riprap to the subgrade as shown on the Plans. 5. Contractor shall excavate areas to receive soil/buried riprap to the specified depth (bedding material is not required for soil/buried riprap. 6. The subgrade materials shall be stable. 7. If unsuitable materials are encountered, they shall be removed and replaced in accordance with Section 203 of the Specifications for subgrade that has been excavated in undisturbed soil. 8. When subgrade is built up with embankment material it shall be compacted to ninety five percent (95%) maximum density (ASTM 0698). 9. All rock is to be placed in a dewatered condition beginning at the toe of the slope or other lowest point. 10. Prior to riprap placement, a geotextile separator shall be installed over the entire area to be riprapped per the Plans. The geotextile shall meet the requirements specified in 712.08 and Table 712-2b. This item shall be included in the cost (subsidiary) of the riprap pay item unless listed separately in the Contract. 11. Riprap shall be installed in a manner that results in a dense, interlocked layer of riprap at a slope not steeper than 3H:1V. The thickness of the riprap layer shall be twice the nominal stone size and installed as shown on the Plans. Place a first layer of smaller soil riprap of approximate dso thickness. Then place the top layer with surface rocks that are largely dso or greater, filling voids as necessary with smaller planted riprap. Riprap shall be placed on the prepared areas in a manner which will produce a reasonably well -graded mass of stone with the minimum practicable percentage of voids. 12. Riprap shall be machine placed, unless otherwise stipulated in the Plans or Specifications. It is the intent to produce a fairly compact riprap protection in which all sizes of material are placed in their proper proportions. The mixture shall be consolidated by large vibratory equipment or backhoe bucket to create a tight, dense interlocking mass. 13. The entire mass of riprap shall be placed on either channel slope so as to be in conformance with the required gradation mixture and to line, grade, and thickness shown on the Plans. Riprap shall be placed to full course thickness at one operation and in such a manner as to avoid displacing the underlying bedding material. Placing of riprap in layers, or by dumping into chutes, or by similar methods shall not be permitted. All material used for riprap protection for channel slope or bottom shall be placed and distributed such that there shall be no large accumulations of either the larger or smaller sizes of stone. Some hand placement may be required to achieve this distribution. 14. Any large voids shall be filled with rock and small voids filled with soil. 15. Excessively thick zones of soil prone to washing away shall not be created (for example, no thicknesses greater than six (6) inches). 16. 17. The soil shall be further wetted to encourage void filling with soil. 18. All riprap shall be reviewed and approved by the Engineer prior to embankment and topsoil placement. 19. For buried soil riprap, the top surface shall be covered with four (4) inches of topsoil such that no rock points are protruding. 117 1 Page October 1, 2021 3 REVISION OF SECTION 506 BURIED RIPRAP 20. The final surface shall be thoroughly wetted for good compaction, smoothed and compacted by vibrating equipment; the surface shall then be hand raked to receive planting or seeding. Topsoil shall be added to any areas that settle. Subsection 506.04 shall be revised as follows: Riprap of the sizes specified in the Contract will be measured by the cubic yard per the Plans. Subsection 506.05 shall be revised as follows: Payment will be under: Pay Item Buried Riprap (12 inch) Pay Unit Cubic Yard (CY) Geotextile (Drainage)(Class 1)) shall meet the material requirements of Subsection 712.08 Geotextiles and table 712-2b. This item shall be included in the cost of the riprap pay item unless listed separately in the Contract. 1181 Page October 1, 2021 1 REVISION OF SECTION 506 SOIL RIPRAP Section 506 of the Standard Specifications is hereby revised for this project as follows: Subsection 506.01 shall be revised as follows: This work consists of the construction of riprap and installation of geotextile separator(drainage)(special) in accordance with the Specifications and Plans. The installation of the geotextile shall be considered subsidiary to the riprap construction and no separate payment shall be made. Soil riprap consists of a soil riprap mixture with 35% by volume soil and 65% by volume riprap. Delete Subsection 506.02, paragraph 2 and replace with the following: Material used for riprap may be approved by the Engineer or Inspector if, by visual inspection, the rock is determined to be sound and durable. Prior to delivering this material to the jobsite, the Contractor shall supply laboratory testing data from the supplier, for approval by the Engineer indicating the material meets the requirements for abrasion resistance or compressive strength as indicated in Table 506-1. Subsection 506.02 shall be revised to include the following: Soil Riprap Soil Riprap shall be a minimum of the nominal stone size (d50) of 12 inches or as called out in the plans and shall conform to the gradation requirements of Table 506-2 in the Specifications. The Contractor shall provide all materials and incidentals necessary to install the riprap which is to be mixed with native soils material. Native soil material shall be taken from the banks of the channel to be protected or soil with similar characteristics. Granular Bedding (Class A) shall be a porous, free -draining sand, gravel, or crushed stone and conform to the gradation in Table 506-3. Prior to delivering material to the jobsite, the Contractor shall supply laboratory testing data from the supplier, for approval by the Project Inspector. Mirafi FW-300 or approved equivalent shall be placed below the granular bedding per the Plans and Specifications. Table 506-3. Granular Bedding (Class A) Granular Bedding Gradation U.S. Standard Sieve Size % Passing, By Weight 3" 90-100 1'/" - 3/4" 20-90 3/8" - #4 0-20 #16 - #50 - #100 - #200 0-3 Subsection 506.03 shall be revised to include the following: Soil Riprap 1. Adjacent stockpiles of riprap and soil shall be created and mixing shall be done at the stockpile location, not at the location where soil riprap is to be placed. 1191 Page October 1, 2021 2 REVISION OF SECTION 506 SOIL RIPRAP Mix thirty-five percent (35%) soil by volume with stockpiled riprap, using additional moisture and control procedures that ensure a homogenous mixture, where the soil fills the inherent voids in the riprap without displacing riprap. a. The riprap is to be mixed with soil that is similar to the characteristics of the soil from the channel to be protected prior to placement in final configuration. b. Soil riprap shall be taken from the area where it is mixed and placed as a channel liner in the channel to be protected. 3. Channel slope or other areas that are to be protected with soil riprap shall be free of brush, trees, stumps, and other objectionable material and be graded to a smooth compacted surface as shown on the Plans. 4. Contractor shall excavate areas to receive soil riprap to the subgrade as shown on the Plans. 5. Contractor shall excavate areas to receive soil riprap to the specified depth. 6. The subgrade materials shall be stable. 7. If unsuitable materials are encountered, they shall be removed and replaced in accordance with Section 203 of the Specifications for subgrade that has been excavated in undisturbed soil. 8. When subgrade is built up with embankment material it shall be compacted to ninety five percent (95%) maximum density (ASTM D698). 9. All rock is to be placed in a dewatered condition beginning at the toe of the slope or other lowest point and shall be placed by working up the slope. Place the riprap in a stepped fashion with the bottom of the uphill riprap below the top of the downhill riprap by half of the height of the riprap minimum. 10. Prior to riprap placement, a Class A granular bedding and a geotextile separator shall be installed over the entire area to be riprapped per the Plans. The geotextile shall meet the requirements specified in 712.08 and Table 712-2b. 11. Riprap shall be installed in a manner that results in a dense interlocked layer of riprap at a slope not steeper than 3H:1V. c. The thickness of the riprap layer shall be twice the nominal stone size and installed as shown on the Plans. d. Riprap shall be placed on the prepared areas in a manner which will produce a reasonably well -graded mass of stone with the minimum practicable percentage of voids. 12. Riprap shall be machine placed, unless otherwise stipulated in the Plans or Specifications. It is the intent to produce a fairly compact riprap protection in which all sizes of material are placed in their proper proportions. e. The entire mass of riprap shall be placed in conformance with the required gradation mixture and to line, grade, and thickness shown on the Plans. f. Riprap shall be placed to full course thickness at one operation and in such a manner as to avoid displacing the underlying bedding material. g. Placing of riprap in layers, or by dumping into chutes, or by similar methods shall not be permitted. h. All material used for riprap protection for channel slope or bottom shall be placed and distributed such that there shall be no large accumulations of either the larger or smaller sizes of stone. i. Some hand placement may be required to achieve this distribution. j. The mixture shall be consolidated by large vibratory equipment or backhoe bucket to create a tight, dense interlocking mass. Compact and level riprap to eliminate all voids and rocks projecting above design riprap top grade. k. The soil riprap shall be further wetted to encourage void filling. I. Any large voids shall be filled with rock and small voids filled with soil. 1201 Page October 1, 2021 3 REVISION OF SECTION 506 SOIL RIPRAP m. The top layer shall be placed in a similar manner, but such that the top surface rocks are largely the size of the dso, and a smooth plane created. 13. Any large voids shall be filled with rock and small voids filled with soil. 14. Excessively thick zones of soil prone to washing away shall not be created (for example, no thicknesses greater than six (6) inches). 15. The final surface shall be thoroughly wetted for good compaction, smoothed and compacted by vibrating equipment. 16. The final surface shall then be hand raked to receive planting, seeding and/or mulching or treatment as shown on the plans. 17. All riprap shall be reviewed and approved by the Engineer prior to embankment and topsoil placement. 18. The Contractor shall maintain the riprap protection until accepted. 19. Any material displaced for any reason shall be replaced to the lines and grades shown on the Drawings at no additional cost to the Owner. 20. If the bedding materials are removed or disturbed, such material shall be replaced prior to replacing the displaced riprap. Subsection 506.04 shall be revised as follows: Riprap of the sizes specified in the Contract will be measured by the cubic yard per the Plans. Subsection 506.05 shall be revised as follows: Payment will be under: Pay Item Soil Riprap (12 inch) Pay Unit Cubic Yard (CY) Geotextile (Drainage)(Class 1)) shall meet the material requirements of Subsection 712.08 Geotextiles and Table 712-2b. This item shall be included in the cost of the riprap pay item unless listed separately in the Contract. Payment for soil riprap shall include but is not limited to excavation for riprap and embankment material for filling existing voids; subgrade preparation, furnishing and placing riprap and filling voids of riprap as specified; and disposal of excess excavated material. Payment shall be made at the contract unit price for soil riprap shall include full compensation for all labor, equipment, materials, transportation, and all other appurtenant items to complete the work. END OF SECTION 1211Page October 1, 2021 I REVISION OF SECTION 601 STRUCTURAL CONCRETE Section 601 of the Standard Specifications is hereby revised for this project as follows: Delete subsections 601.01 thru 601.07 and replace with the following: 601.01 This work consists of furnishing and placing Portland cement concrete in accordance with these specifications and in conformity with the lines, grades and dimensions as shown on the plans or established. This work includes preparing concrete surfaces designated in the Contract and applying an approved colored Structural Concrete Coating to them. The use of AC! 318, Building Code Requirements for Structural Concrete, is not acceptable as it pertains mainly to structural concrete buildings. 601.02 Classification. The classes of concrete shown in Table 601-1 shall be used when specified in the Contract. Table 601-1 CONCRETE TABLE Minimum Required Cementitious Field Compressive Material Content: Air Concrete Class Strength (psi) at 28 Minimum or Range Content: Water/Cementitious days (lbs/yd3) % Range Material Ratio: Maximum (Total) B 4500 N/A 5-8 0.45 BZ 4500 610 N/A 0.45 4500 615 to 660 :5-8 0.45 DT 4500 700 5-8 0.44 456© 520 4-8 0.44 G 4500 N/A 5-8 0.45 P 4500 520 4-8 0.44 PS (Girders) 8500 Requirements for these mixes are specified in Subsection 618.11 of the Specifications P (Deck Panels) 6000 S35 5000 615 to 720 5-8 0.42 S40 5800 615 to 760 5.8 0.40 S50 7250 615 to 800 5-8 0.38 Shotcrete :: 45-70 N/A 7-10 " 0.45 * Prior to pumping for wet process. Class B concrete is an air entrained concrete for general use. Class D, G or P concrete may be substituted for Class B concrete. Additional requirements are: i. The coarse aggregate shall have a nominal maximum size of 11/2 inches or smaller. ii. Class B Concrete for slope and ditch paving shall be macro -fiber reinforced. Class BZ concrete is concrete for drilled shafts. Additional requirements are: (1) Entrained air is not required unless specified in the Contract. When entrained air is specified in the Contract, the air content shall be 5 to 8 percent. (2) Slump shall be a minimum of 6 inches and a maximum of 9 inches. A minimum of 6 inches slump shall be maintained during the anticipated pour period. The use of retarders and mid -range water reducers is allowed to extend the slump life of the concrete. When the Contractor elects to use self -consolidating concrete (SCC), the slump requirement for Class BZ Concrete does not apply. 122IPage October 1, 2021 2 REVISION OF SECTION 601 STRUCTURAL CONCRETE (3) The coarse aggregate size shall be AASHTO M43 size #8 unless otherwise approved by the Engineer. Class D concrete is a dense medium strength structural concrete. Class G may be substituted for Class D concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, or No. 67 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. Class DT concrete may be used for deck resurfacing and repairs. Additional requirements are: (1) An approved water reducing admixture shall be incorporated into the mix. (2) The concrete mix shall consist of a minimum 50 percent AASHTO M 43 size No. 7 or No. 8 coarse aggregate by weight of total aggregate. Class E concrete is used for fast track pavements needing early strength in order to open a pavement to service soon after placement. Class E concrete shall meet the requirements of Class P concrete. ASTM C150 Type III or ASTM C1157 Type HE cement may be used. Accelerating admixtures may be used. Class G concrete is a low shrinkage macro fiber -reinforced structural concrete. Class G concrete may be substituted for Class B or Class D concrete. Additional requirements are: (1) The concrete shall include a minimum of 4 pounds per cubic yard of Macro Fiber -Reinforcement. (2) Shrinkage reducing admixtures may be incorporated into the mix. (3) The unrestrained shrinkage shall be less than 0.030 percent when tested by CP-L 4103. (4) The permeability of the mix shall not exceed 2,500 coulombs at an age of not more than 56 days when tested in accordance with ASTM C1202. (5) The mix may contain more than 30 percent fly ash by weight of the total cementitious material. (6) The mix may use an optimized gradation with a nominal aggregate size of at least' inch. The mix shall have a nominal maximum aggregate size of 3 inch if an optimized gradation is not used. (7) An expansive cement additive may be added to an ASTM C150 Type I/ll cement and fly ash to produce an ASTM C845 Type K cement. Approximately 15 to 20 percent by weight of the cementitious content of the concrete will be the expansive cement additive. The proportion of the expansive cement additive will be determined by testing the cementitious material blend in accordance with ASTM C806. The blended material shall have an expansion of 0.04 to 0.10 percent at 7 days when tested in accordance with ASTM C806. When an expansive cement is used the w/cm ratio shall be 0.45 to 0.55, and the expansion of the laboratory trial mix shall be 0.05 to 0.09 percent at 7 days when tested in accordance with ASTM C878. (1) Class HT concrete shall contain a minimum of 20 percent pozzolan by weight of total cementitious material. (2) The sulfate exposure is Class 0. Class P concrete is used in pavements. Additional requirements are: (1) The Required Field Flexural Strength shall be 650 psi when flexural strength acceptance is specified. The laboratory trial mix shall produce a minimum average 28 day flexural strength of 700 psi. (2) The concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 357 or No. 467 coarse aggregate by weight of total aggregate. (3) If all transverse joints are doweled, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 357, or No. 467 coarse aggregate by weight of total aggregate. (4) Class P concrete pavement shall utilize an optimized graded concrete pavement (OGCP) design. Class PS concrete is used for prestressed concrete members. Requirements for Class PS concrete are specified in subsection 618.11. ASTM C150 Type III and ASTM C1157 Type HE cements may be used. Class S35 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. 1231 Page October 1, 2021 3 REVISION OF SECTION 601 STRUCTURAL CONCRETE (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. Class S40 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate. Class S50 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. (4) The laboratory trial mix shall not exhibit a crack before 15 days in the cracking tendency test (AASHTO T334). Deviations from the Standard Class B, Class BZ, Class D, Class DT, Class E, and Class P concrete may be made under the following conditions: (1) The minimum cement content may be reduced from that specified in Table 601-1 if lab test results show that the permeability of the mix does not exceed 2,500 Coulombs at an age of not more than 56 days as determined by ASTM C1202. The maximum cement content may be increased from that specified in Table 601-1 if lab test results show that the unrestrained shrinkage is less than 0.050 percent when tested by CP- L 4103. (2) The maximum amount of fly ash substituted for ASTM C150 cement or the maximum pozzolan content when ASTM C595 or C1157 cement is used may exceed the limits in subsection 601.05 if lab test results show that the permeability of the mix does not exceed 2,500 Coulombs at an age of not more than 56 days as determined by ASTM C 1202. (3) Except for Class DT, the concrete mix may use an Optimized Gradation (OG). When an OG is used aggregate proportions must be a result of an optimized combined aggregate gradation (CAG) developed by an approved mix design technique such as Shilstone or KU Mix. The amount of aggregate in the CAG passing the' inch sieve and retained on the'/ inch sieve shall be a minimum of 8 percent for the trial mix design. The coarseness factor (CF) and workability factor (WE) must plot within the workability box (ABCD) depicted graphically by the following 4 coordinate points: (i) Point A: (CF,WF) 72, 31 (ii) Point B: (CF,WF) 44.5, 35 (iii) Point C: (CF,WF) 44.5, 43.5 (iv) Point D: (CF,WF) 72, 40 Figure 601-1 Workability Box `0 45 0 C a 35 B A 30 25 20--r------,--�- 80 70 60 50 40 30 Coarseness Factor 1241 Page October 1, 2021 4 REVISION OF SECTION 601 STRUCTURAL CONCRETE CF=(S/T)x100 Where: S = Percent Cumulative Retained on 9.5 mm (3/ inch) Sieve T = Percent Cumulative retained on 2.36 mm (No. 8) Sieve WF is the percent passing the 2.36 mm (No. 8) sieve. Increase workability factor by 2.5 percentage points for every 94 pounds per cubic yard of cementitious material used in excess of 564 pounds per cubic yard in the mix design. Decrease workability factor by 2.5 percentage points for every 94 pounds per cubic yard of cementitious material used below 564 pounds per cubic yard in the mix design. The Contractor shall not adjust the workability factor if the amount of cementitious material is 564 pounds per cubic yard. (4) Aggregate gradings not obtained through an OG may be used if lab test results show that the unrestrained shrinkage is less than 0.050 percent when tested by CP-L 4103. Concrete with any of the above deviations shall be known as Class U Non -Standard Concrete (Class _-NS concrete). For example, Class B -NS. Non-standard concrete may be substituted for the equivalent standard concrete. Non-standard concrete shall be tested, accepted, measured and paid for as standard concrete or the pay item specifying standard concrete. The Contractor may elect to modify Class B, Class BZ, Class D, S35, S40 and S50 concrete to be SCC with the following requirements: (1) SCC shall have a slump flow of 20 to 26 inches when tested in accordance with ASTM C1611 using an inverted slump cone. (2) SCC shall have a maximum blocking assessment of 2.0 inches when tested in accordance with ASTM C1621. (3) SCC shall have a maximum static segregation of 10 percent when tested in accordance with ASTM C1610. (4) For SCC, deviations from the Standard Class B, Class BZ, Class D, S35, S40 and S50 concrete requirements may be made as long as the non-standard concrete requirements are met. ASTM C672 testing is not required for SCC that exceeds the maximum pozzolan substitution in subsection 601.05. 601.03 Materials shall meet the requirements specified in the following subsections: Fine Aggregate : '. 703.01 Coarse Aggregate 703.02 Portland Cement 701.01 Slag Cement 701.05 Fly As :,>>; 701.02 Silica Fume Admixture 701.03 WatBr.. 12.01 Air Entraining Admixture 711.02 Chemical Admixtures 711.03 Curing Materials 711.01 Preformed Joint Material "751 Reinforcing Steel 709.01 BearingMaterials ,... 705.06 Epoxy 712.10 Structural Concrete Coating : 708.08 High -reactivity Pozzolans 701.04 Pozzolans shall consist of fly ash, silica fume, and high -reactivity pozzolan. Prestressing steel shall meet the requirements of subsection 714.01 except as noted on the plans. 125 1 Page October 1, 2021 5 REVISION OF SECTION 601 STRUCTURAL CONCRETE Calcium Chloride shall not be used in reinforced concrete. Calcium Chloride shall be used in non -reinforced concrete only when specified. Where Fiber -Reinforced Concrete is specified or designated on the plans, the concrete mix shall include approved polyolefin fibers. Unless otherwise specified, a minimum of 3.5 pounds per cubic yard of polyolefin fiber reinforcement shall be evenly distributed into the mix. Mixing shall be as recommended by the manufacturer such that the fibers do not ball up. Polyolefin fibers shall meet the requirements of ASTM C1116 and ASTM D7508. Where Macro Fiber -Reinforced Concrete is specified or designated in the plans, the concrete mix shall include approved macro polyolefin fibers. A minimum of 4.0 pounds per cubic yard of macro polyolefin fiber reinforcement shall be evenly distributed into the mix. If less than 4.0 pounds per cubic yard of macro polyolefin fiber reinforcement is used in the mix, the Contractor shall provide test results showing the mix design has a residual strength of 170 psi as determined in accordance with ASTM C1609. Mixing shall be as recommended by the manufacturer such that the fibers do not ball up. Macro polyolefin fibers shall meet the requirements of ASTM C1116 and ASTM 07508 with the following exceptions: (1) Tensile strength shall be a minimum of 65 ksi (2) Modulus of Elasticity shall be a minimum of 1,000 ksi (3) Cut length shall be 1.5 to 2.2 inches (4) Aspect Ratio shall be 50 to 100 601.04 Sulfate Resistance. The Contractor shall provide protection against sulfate attack on concrete structures and pavements by providing concrete manufactured according to the requirements of Table 601-2. The sulfate exposure for all concrete shall be Class 2 unless otherwise specified on the plans. A higher level of requirements may be used for a lower level of exposure. If the Contractor provides test reports that show another class of exposure exists at a structure location, then the Engineer may accept a concrete mix for that location that meets the corresponding sulfate protection requirements. Table 601-2 REQUIREMENTS TO PROTECT AGAINST DAMAGE TO CONCRETE BY SULFATE ATTACK FROM EXTERNAL SOURCES OF SULFATE Severity of Water -Soluble Maximum Cementitious Sulfate Sulfate (SO4) Sulfate (SO4) Water to Material Exposure in Dry Soil, (%) in Water, ppm Cementitious Requirement Material Ratio S Class 0 6.60 to 0.10 : 0 to 150 0.45 Class 0 Class 1 0.11 to 0.20 151 to 1500 0.45 Class 1 Class 2 0,21 to 2.00 .1501 to 10,000 ; ` 0.45 _ ? Class 2 Class 2.01 or 10,001 0.40 Clas 3 greater or s3 greater Cementitious material requirements are as follows: Class 0 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type I, II or V (2) ASTM C595 Type IL, lP, IP(MS), IP(HS) or IT (3) ASTM C1157 Type GU, MS or HS (4) ASTM C150 Type III cement if it is allowed, as in Class E concrete Class 1 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type II or V; Class C fly ash shall not be substituted for cement. (2) ASTM C595 Type IP(MS) or IP(HS). (3) ASTM C1157 Type MS or HS; Class C fly ash shall not be substituted for cement. 1261 Page October 1, 2021 6 REVISION OF SECTION 601 STRUCTURAL CONCRETE (4) When ASTM C150 Type III cement is allowed, as in Class E concrete, it shall have no more than 8 percent C3A. Class C fly ash shall not be substituted for cement. (5) ASTM C595 Type IL(MS), IL(HS), IT(MS) or (HS); Class C fly ash shall not be substituted for cement. Class 2 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type V with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight (2) ASTM C150 Type II or III with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight. The Type II or III cement shall have no more than 0.040 percent expansion at 14 days when tested according ASTM C452 (3) ASTM C1157 Type HS; Class C fly ash shall not be substituted for cement. (4) ASTM C150 Type II, 111, or V plus High -Reactivity Pozzolan where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012 (5) ASTM C1157 Type MS plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012 (6) A blend of Portland cement meeting ASTM C150 Type II or III with a minimum of 20 percent Class F fly ash or slag cement by weight, where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012. (7) ASTM C595 Type IP(HS), IL(HS) or IT(HS). Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for Type IL cement. Class C fly ash shall not be substituted for cement. (8) ASTM C595 Type IL(MS) or IT(MS) plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1 012 Class 3 requirements for sulfate resistance shall be one of the following: (1) A blend of Portland cement meeting ASTM C150 Type II, 111, or V with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight, where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (2) ASTM C1157 Type HS having less than 0.10 percent expansion at 18 months when tested according to ASTM C1 012. Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for cement. Class C fly ash shall not be substituted for cement. (3) ASTM C1157 Type MS or HS plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (4) ASTM C1 50 Type II, III, or V plus High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (5) ASTM C595 Type IL(MS) or IT(MS) plus High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (6) ASTM C595 Type IP(HS), IL(HS) or IT(HS) having less than 0.10 percent expansion at 18 months when tested according to ASTM C1 012. Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for Type IL cement. Class C fly ash shall not be substituted for cement. (7) ASTM C595 Type IL with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight, where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (8) ASTM C150 Type I, II, III or V plus a minimum of 20% Class F fly ash when the R factor of the fly ash is less than 0.75. R factor is determined using the following from the chemical composition of the fly ash. R=CaO-5 Fe2O3 When fly ash or high -reactivity pozzolan is used to enhance sulfate resistance, it shall be used in a proportion greater than or equal to the proportion tested in accordance to ASTM C1012, shall be the same source and it shall have a calcium oxide content no more than 2.0 percent greater than the fly ash or high -reactivity pozzolan tested according to ASTM C1012. 127 1 Page October 1, 2021 7 REVISION OF SECTION 601 STRUCTURAL CONCRETE ASTM C1012 test results are acceptable for up to two years from the completion date of the test. 601.05 Proportioning. The Contractor shall submit a Concrete mix design for each class of concrete being placed on the project. Concrete shall not be placed on the project before the Concrete Mix Design Report has been reviewed and approved by the Engineer. The Concrete mix design will be reviewed and approved following the procedures of CP 62. The Concrete mix design will not be approved when the laboratory trial mix data are the results from tests performed more than two years in the past or aggregate data are the results from tests performed more than two years in the past. The concrete mix design shall show the weights and sources of all ingredients including cement, pozzolan, aggregates, water, additives and the water to cementitious material ratio (w/cm). When determining the w/cm, the weight of cementitious material (cm) shall be the sum of the weights of the cement, slag cement, fly ash, silica fume, and high -reactivity pozzolan. The laboratory trial mix data shall include results of the following: (1) AASHTO T 119 (ASTM C143) Slump of Hydraulic Cement Concrete. (2) AASHTO T 121 (ASTM C1 38) Weight per Cubic Foot, Yield, and Air Content (Gravimetric) of Concrete. (3) AASHTO T 152 (ASTM C231) Air Content of Freshly Mixed Concrete by the Pressure Method. (4) ASTM C39 Compressive Strength of Cylindrical Concrete Specimens shall be performed with at least two specimens at 7 days and three specimens at 28 days. (5) S50 concrete shall include a measurement of cracking by AASHTO T334 Standard Practice for Estimating the Cracking Tendency of Concrete. The sample shall be cured at a temperature of 65 to 75°F and relative humidity not exceeding 40 percent. (6) Class E and P concrete shall include AASHTO T97 (ASTM C78) Flexural Strength of Concrete (Using Simple Beam with Third -Point Loading). At least two specimens will be tested at 7 days and four specimens at 28 days. The laboratory trial mix shall produce a flexural strength at 28 days of at least 700 psi. (7) Concrete with an optimized gradation shall indicate the gradation proportions that results in a combined aggregate gradation corresponding to compliance within the specified CF and WF box and shall include the following charts used to perform aggregate gradation analysis: (i) Coarseness Factor. (ii) Workability Factor. (iii) 0.45 power. (iv) Combined gradation. Optimized gradations shall be developed by an approved mix design technique such as Tarantula Curve, Shilstone, KU -Mix, etc. (9) SCC concrete shall include ASTM C1611 Standard Test Method for Slump Flow of Self -Consolidating Concrete. Slump flow shall be measured using an inverted slump cone. (10)SCC concrete shall include ASTM C1621 Standard Test Method for Passing Ability of Self -Consolidating Concrete by J -Ring. (11)SCC concrete shall include ASTM C1610 Standard Test Method for Static Segregation of Self - Consolidating Concrete Using Column Technique. Concrete for bridge sidewalk shall be Macro Fiber -Reinforced Class D Concrete. Prior to placement of Class E concrete, the Contractor shall provide the Engineer a report of maturity relationships in accordance with CP 69. The Contractor shall provide maturity meters and all necessary wires and connectors. The Contractor shall be responsible for the placement and maintenance of the maturity meters and wires. Placement shall be as directed by the Engineer. Except for Class BZ concrete, the slump of the delivered concrete shall be the slump of the approved concrete mix design plus or minus 2.0 inches. The laboratory trial mix must produce an average compressive strength at least 115 percent of the required field compressive strength specified in Table 601-1. 128IPage October 1, 2021 8 REVISION OF SECTION 601 STRUCTURAL CONCRETE When entrained air is specified in the Contract for Class BZ concrete, the trial mix shall be run with the required air content. The laboratory trial mix shall have a relative yield of 0.99 to 1.02. When Portland Cement Concrete Pavement is paid with a volumetric pay quantity, the relative yield of the concrete produced on the project shall be 0.99 to 1.02. If the produced concrete does not have a relative yield of 0.99 to 1.02 for two consecutive yield determinations, concrete production shall cease and the Contractor shall present a plan to correct the relative yield to the Engineer. Aggregate data shall include the results of the following: (1) AASHTO T 11 (ASTM C117) Materials Finer Than 75 um (No. 200) Sieve in Mineral Aggregates by Washing. (2) AASHTO T 19 (ASTM C29) Unit Weight and Voids in Aggregate. (3) AASHTO T 21 (ASTM C40) Organic Impurities in Fine Aggregate for Concrete. (4) AASHTO T 27 (ASTM C 136) Sieve Analysis of Fine and Coarse Aggregates. (5) AASHTO T 84 (ASTM C128) Specific Gravity and Absorption of Fine Aggregate. (6) AASHTO T 85 (ASTM C127) Specific Gravity and Absorption of Coarse Aggregate. (7) AASHTO T 96 (ASTM C131) Resistance to Degradation of Small -Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. (8) AASHTO T 104 (ASTM C88) Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate. (9) CP 37 Plastic Fines in Graded Aggregates and Soils by use of the Sand Equivalent Test. (1 0)ASTM C535 Resistance to Degradation of Large -Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. (11)ASTM C1260 Determining the Potential Alkali Reactivity of Aggregates (Accelerated Mortar -Bar Method). When an aggregate source is known to be reactive, ASTM C 1567 results may be submitted in lieu of ASTM C1260 results. Any aggregate tested by ASTM C1260 with an expansion of 0.10 percent or more, or that is known to be reactive, shall not be used unless mitigative measures are included in the mix design. Test results from ASTM C1293 Standard Test Method for Determination of Length Change of Concrete Due to Alkali -Silica Reaction may be substituted for ASTM C1260 test results. The ASTM C1293 test shall be run on an individual source of aggregate. The ASTM C1293 test shall not use pozzolan as part of the cementitious material content. Any aggregate source tested by ASTM C1293 with an expansion greater than or equal to 0.04 percent at one year shall not be used unless mitigative measures are included in the mix design. Mitigative measures shall be tested using ASTM C1567 and exhibit an expansion less than 0.10 percent by one of the following methods: (1) Combined Aggregates. The mix design sources of aggregates, cement and mitigative measures shall be tested. The proportions of aggregates, cement and mitigative measures shall be those used in the mix design. (2) Individual Aggregates. Each source and size of individual aggregates shall be tested. The source of cement and mitigative measures shall be those used in the mix design. The highest level of mitigative measures for any individual aggregate shall be the minimum used in the mix design. The Concrete Mix Design Report shall include certified test reports showing that the cement, fly ash, slag cement, high -reactivity pozzolan, and silica fume meet the specification requirements and shall support this statement with actual test results. The certification for silica fume shall state the solids content if the silica fume admixture is furnished as slurry. For all concrete mix designs with ASTM C150 cements, up to a maximum of 20 percent Class C fly ash, 30 percent Class F fly ash, or 30 percent high -reactivity pozzolan by weight of total cementitious material may be substituted for cement. Up to a maximum of 50 percent slag cement by weight of total cementitious material may be substituted for cement. When slag cement and pozzolans are substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. 1291Page October 1, 2021 9 REVISION OF SECTION 601 STRUCTURAL CONCRETE For all concrete mix designs with ASTM C595 Type IL cements, up to a maximum of 20 percent Class C fly ash, 30 percent Class F fly ash, or 30 percent high -reactivity pozzolan by weight of total cementitious material may be substituted for cement. Up to a maximum of 50 percent slag cement by weight of total cementitious material may be substituted for cement. When slag cement and pozzolans are substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. For all concrete mix designs with ASTM C595 Type IP, IP(MS), IP(HS) or IT cements: fly ash or high -reactivity pozzolan shall not be substituted for cement. For all concrete mix designs with ASTM C595 IT cements: slag cement shall not be substituted for cement. For all concrete mix designs with ASTM C595 Type IP, IP(MS), IP(HS) cements, when slag cement is substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. For all concrete mix designs with ASTM C1157 cements, the total pozzolan content including pozzolan in cement shall not exceed 30 percent by weight of the cementitious material content. Up to a maximum of 30 percent slag cement by weight of total cementitious material may be substituted for cement. The Contractor shall submit a new Concrete Mix Design Report meeting the above requirements when a change occurs in the source, type, or proportions of cement, slag cement, fly ash, high -reactivity pozzolan, silica fume, or aggregate. When a change occurs in the source of approved admixtures, the Contractor shall submit a letter stamped by the Concrete Mix Design Engineer approving the changes to the existing mix design. The change shall be approved by the Engineer prior to use. The use of approved accelerating, retarding or hydration stabilizing admixtures to existing mix designs will be permitted at the discretion of the Engineer when documentation includes the following: (1) Manufacturer's recommended dosage of the admixture (2) A letter stamped by the Concrete Mix Design Engineer approving the changes to the existing mix design. Unless otherwise permitted by the Engineer, the product of only one type of hydraulic cement from one source of any one brand shall be used in a concrete mix design. When Fiber -Reinforced Concrete is specified in the Contract, polyolefin fibers may be added to an approved mix design except when Macro Fiber -Reinforced Concrete is specified. If Macro Fiber -Reinforced Concrete is specified a new trial mix will be required. When polyolefin fibers are added to an approved concrete mix design, the Contractor shall submit a letter stamped by the Concrete Mix Design Engineer approving the changes. The stamped letter shall include the following, and the change must be approved by the Engineer prior to use: (1) The mix design number, both the CDOT mix ID number and the suppliers mix ID number. (2) The brand and type of polyolefin fibers. (3) The dosage of polyolefin fibers in pounds per cubic yard. (4) Adjustment to the fine aggregate batch weight. Review and approval of the concrete mix design by the Engineer does not constitute acceptance of the concrete. Acceptance will be based solely on the test results of concrete placed on the project. 601.06 Batching. Measuring and batching of materials shall be done at a batching plant in accordance with AASHTO M 157. The Contractor shall furnish a batch ticket (delivery ticket) with each load for all classes of concrete. Concrete delivered without a batch ticket containing complete information as specified shall be rejected. The Contractor shall collect and complete the batch ticket at the placement site and deliver all batch tickets to the Engineer on a daily basis. The Engineer shall have access to the batch tickets at any time during the placement. The following information shall be provided on each batch ticket: 1301 Page October 1, 2021 10 REVISION OF SECTION 601 STRUCTURAL CONCRETE (1) Supplier's name and date. (2) Truck number. (3) Project number and location. (4) Concrete class designation and item number. (5) Cubic yards batched. (6) Time batched. (7) CDOT mix design number. (8) Type, brand, and amount of each admixture. (9) Type, brand, and amount of cement, fly ash, and high -reactivity pozzolan. (10) Weights of fine and coarse aggregates or combined weight when an OG is pre -blended. (11) Moisture of fine and coarse aggregates or combined moisture when an OG is pre -blended. (12) Gallons (Pounds) of batch water (including ice). The Contractor shall add the following information to the batch ticket at the placement site: (13) Gallons of water added by truck operator, the time the water was added, and the quantity of concrete in the truck each time water is added. (14) Number of revolutions of drum at mixing speed (for truck mixed concrete). (15) Discharge time. (16) Location of batch in placement. (17) Water to cementitious material ratio. (18) Weight of polyolefin fiber reinforcement. The drum on each truck mixer shall be reversed prior to charging to eliminate any wash water remaining in the mixer. (a) Portland Cement, Fly Ash, High -Reactivity Pozzolan and Silica Fume. These materials may be sacked or bulk. No fraction of a sack shall be used in a batch of concrete unless the material is weighed. All bulk cement shall be weighed on an approved weighing device. The bulk cement weighing hopper shall be sealed and vented to preclude dusting during operation. The discharge chute shall be so arranged that cement will not lodge in it or leak from it. Separate storage and handling equipment shall be provided for the fly ash, silica fume and high -reactivity pozzolan. The fly ash, silica fume, and high -reactivity pozzolan may be weighed in the cement hopper and discharged with the cement. (b) Water. Unless water is to be weighed, the water -measuring equipment shall include an auxiliary tank from which the measuring tank shall be filled. The measuring tank shall be equipped with an outside tap and valve to provide for checking the calibration unless other means are provided for readily and accurately determining the amount of water in the tank. The volume of the auxiliary tank shall be at least equal to that of the measuring tank. In lieu of the volume method specified above, the Contractor will be permitted to use a water metering device that is accurate within the prescribed limits. (c) Aggregates. Aggregates from different sources and of different gradings shall not be stockpiled together. Aggregate shall be handled from stockpiles or other sources to the batching plant in such manner as to secure a uniform grading of the material. Aggregates that have become segregated, or mixed with earth or foreign material, shall not be used. All aggregates produced or handled by hydraulic methods, and washed aggregates, shall be stockpiled or binned for draining at least 12 hours before being batched. Rail shipment requiring more than 12 hours will be accepted as adequate binning only if the car bodies permit free drainage. In case the aggregates contain high or non -uniform moisture content, storage or stockpile period in excess of 12 hours may be required. (d) Bins and Scales. The batching plant may include bins, weighing hoppers, and scales for the fine aggregate and for each size of coarse aggregate. If cement is used in bulk, a bin, hopper, and scale for cement shall be included. A single weighing hopper with an accumulative scale will be permitted, provided a separate scale is used for weighing cement. 131 1 Page October 1, 2021 11 REVISION OF SECTION 601 STRUCTURAL CONCRETE Scales shall meet the requirements of subsection 109.01. 601.07 Mixing. Concrete may be mixed in stationary mixers, in a central -mix plant, in truck mixers, or in self- contained mobile mixers. Mixing time shall be measured from the time all materials, except water, are in the drum. If the Contractor utilizes process water from a well, it shall be tested at initial operation and every week after to ensure there are no changes that could change the concrete mix. Wells in the Project Area are known to be high in sodium, hydrogen sulfide, and nitrates. If the concentrations of sodium, hydrogen sulfide, and nitrates change, the approved concrete mix could change. Silica fume, when used, shall be added to the mix during initial batching. (a) Mixing General. The concrete shall be deposited in place within 90 minutes after batching when concrete is delivered in truck mixers or agitating trucks, and within 60 minutes when delivered in non -agitating trucks. The 90 minute time limit for mixer or agitating trucks may be extended to 120 minutes if: (1) No water is added after 90 minutes. (2) The concrete temperature prior to placement is less than 90 °F The 90 minute time limit for mixer or agitating trucks may be extended to 180 minutes if: (1) No water is added after 90 minutes. (2) The concrete temperature prior to placement is less than 90 °F. (3) The approved concrete mix contains a Type D water reducing and retarding chemical admixture. (b) Stationary Mixing. When mixed in a central mixing plant, the mixing time shall be between 50 and 90 seconds. Four seconds shall be added to the specified mixing time if timing starts the instant the skip reaches its maximum raised position. Mixing time ends when the discharge chute opens. Transfer time in multiple drum mixers is included in mixing time. The contents of an individual mixer drum shall be removed before a succeeding batch is emptied therein. The volume of concrete mixed per batch may exceed the mixer's nominal capacity, as shown on the manufacturer's standard rating plate on the mixer, up to 10 per cent provided concrete test data for strength, segregation, and uniform consistency are satisfactory, and provided spillage of concrete does not occur. The batch shall be so charged into the drum that a portion of the mixing water shall enter in advance of the cement and aggregates. The flow of water shall be uniform and all water shall be in the drum by the end of the first 15 seconds of the mixing period. The throat of the drum shall be kept free of such accumulations as may restrict the free flow of materials into the drum. The timing device on stationary mixers shall be equipped with a bell or other suitable warning device adjusted to give a clearly audible signal each time the lock is released. In case of failure of the timing device, the Contractor will be permitted to operate while it is being repaired, provided the Contractor furnishes an approved timer that accurately measures minutes and seconds. If the timing device is not placed in good working order within 24 hours, further use of the mixer will be prohibited until repairs are made. (c) Truck Mixing. Truck mixed concrete shall conform with one of the following: (1) Concrete mixed entirely in a truck mixer equipped with a mechanical counter shall be partially mixed at the plant or in transit for at least 20 revolutions of the drum at mixing speed. The revolutions of the drum at charging speed shall not be counted as mixing revolutions. The concrete shall be mixed between 50 and 100 revolutions of the mixer drum at mixing speed at the delivery site before discharge of the concrete. (2) Concrete partially mixed in a stationary central mixing plant with mixing brought to completion in a truck mixer (known as shrink mixing) shall be mixed for a minimum of 30 seconds in the stationary mixer. Mixing shall be completed in the truck mixer for at least 20 but not more than 100 revolutions of the mixer drum at mixing speed at the delivery site before discharge of the concrete. 132IPage October 1, 2021 12 REVISION OF SECTION 601 STRUCTURAL CONCRETE (3) Concrete mixed entirely in a stationary mixer and delivered to the job in a truck mixer shall be remixed for a minimum of 20 revolutions of the mixing drum at mixing speed at the job site prior to discharge. When water is added at the delivery site to control the consistency of the concrete as specified in subsection 601.02, the concrete shall be mixed for at least 20 revolutions of the mixer drum at mixing speed for each addition of water before discharge. These revolutions are in addition to the minimum revolutions required for mixing at the delivery site. The added water shall not cause the water/cement ratio to exceed the requirements in subsection 601.02. Water from all sources shall be documented by the ready mix producer on the delivery slip for each load of concrete. The Contractor shall provide a Concrete Truck Mixer Certification. This certification shall show the various pick-up and throw -over configurations and wear marks so that the wear on the blades can be checked. Blades shall be replaced when any part or section is worn 1 inch or more below the original height of the manufacturer's design. A copy of the manufacturer's design, showing the dimensions and arrangement of blades, shall be available to the Engineer at all times. The Contractor shall furnish a water -measuring device in good working condition, mounted on each transit mix truck, for measuring the water added to the mix after the truck has left the charging plant. Each measuring device shall be equipped with an easy -to -read gauge. Water shall be measured to the accuracy prescribed in AASHTO M 157. (d) Self -Contained Mobile Mixer. Proportioning and mixing equipment shall be of the self-contained, mobile, continuous mixing type subject to the following: The mixer shall be self-propelled and be capable of carrying sufficient unmixed dry, bulk cement, fine aggregate, coarse aggregate, admixtures and water to produce on the site at least 6 cubic yards of concrete. The mixer shall have one bin for each size aggregate. The mixer shall be capable of positive measurement of cement being introduced into the mix. A recording meter visible at all times and equipped with a ticket printout shall indicate the quantity of total concrete mix. The mixer shall provide positive control of the flow of water into the mixing chamber. Water flow shall be indicated by flow meter and be readily adjustable to provide for minor variations in the aggregate moisture. The mixer shall be capable of being calibrated to automatically proportion and blend all components of indicated composition on a continuous or intermittent basis as required by the finishing operation and shall discharge mixed material through a conventional chute directly in front of the finishing machine. The Contractor shall perform calibration tests according to the equipment manufacturer's recommendations at the beginning of each project, and when there is a change in the mix design proportions or source of materials. The Engineer may require a calibration test or yield check whenever a change in the characteristics of the mixture is observed. The tolerances in proportioning the various ingredients shall be according to subsection 6.8 of AASHTO M 241. Subsection 601.16 shall be revised to include the following: (e) When the ambient temperature is expected to fall below 40 °F during the curing period, the Contractor shall maintain the internal concrete temperature above 50 °F during the curing period and until the concrete has developed a compressive strength of 0.80f c. The Contractor shall provide suitable measures such as straw, additional burlap, ground heaters, or other suitable blanketing materials, and/or housing and artificial heat to maintain the internal concrete temperature above 50 °F. Concrete shall not be placed on forms, girders, or deck panels that have a surface temperature less than 35 °F. Forms, girders, or deck panels 133 1 Page October 1, 2021 13 REVISION OF SECTION 601 STRUCTURAL CONCRETE where concrete is to be placed shall be free of snow, ice, and frost. Salt shall not be used to thaw ice, snow, or frost. Heating forms, girders, or deck panels prior to concrete placement may be required. When the Contractor chooses to use an enclosure, the Contractor shall enclose the area underneath the deck and heat it so that the temperature of the enclosed air is as close as possible to the temperature of the enclosed air above the concrete. When artificial heating is used to maintain the concrete temperature, adequate ventilation shall be provided to limit exposure to carbon dioxide, and the enclosed air temperature shall not exceed 90 °F. During the curing period, the Contractor shall monitor the air temperature within the enclosure at intervals acceptable to the Engineer. The Contractor shall monitor and maintain the structural integrity of the enclosure. Heating of the enclosure may be stopped after 72 hours if the air surrounding the concrete is greater than 40 °F or the concrete has achieved 0.80f'c. For every day that the internal temperature of the concrete is below 50°F during the curing period, an additional day of curing with a minimum internal concrete temperature of 50 °F will be required unless the concrete has achieved 0.80f'c. After completion of the required curing period, the Contractor shall remove the enclosure in such a manner that the temperature of the concrete during the following 24 hours does not fall by more than 25 °F. When the Contractor chooses not to use an enclosure, after the curing period and after the concrete has achieved 0.80f'c, the Contractor shall remove the protection in such a manner that the temperature of the concrete during the following 24 hours does not fall by more than 25 °F. For every day that the internal temperature of the concrete is below 50 °F during the curing period, an additional day of curing with a minimum internal concrete temperature of 50 °F will be required unless the concrete has achieved 0.80f'c. Internal concrete temperature shall be determined by using thermocouples. Thermocouple wire, connectors, and handheld thermometer shall be supplied by the Contractor. The Contractor shall install the thermocouples at locations designated by the Engineer. Concrete compressive strength shall be determined by maturity meters. The Contractor shall develop maturity relationships for each mix placed during the cold weather conditions in accordance with CP 69. The maturity relationship shall be submitted to the Engineer prior to cold weather concrete placement. The Contractor shall provide the maturity meters and all necessary wires and connectors. The Contractor shall be responsible for the placement, protection, and maintenance of the maturity meters and wires. Locations where the maturity meters are placed shall be protected in the same manner as the rest of the concrete. Heat sources shall not be placed in such a manner as to endanger formwork or expose any area of concrete to drying due to excessive temperatures. If the internal concrete temperature at any location in the bridge deck concrete falls below 32 °F during the first 24 hours of the curing period, the Engineer may direct the Contractor to core the areas in question at the locations indicated by the Engineer. The Engineer will take immediate possession of the cores. The Engineer will submit the cores to a petrographer for examination in accordance with ASTM C856. Concrete damaged by frost, as determined by the petrographer, shall be removed and replaced at the Contractor's expense. All costs associated with coring, transmittal of cores, and petrographic examination shall be borne by the Contractor regardless of the outcome of the petrographic examination. Delete subsection 601.17(c) and replace with the following: (c) Concrete which does not meet the minimum required 28 day strength shall be removed and replaced at the sole discretion of the Engineer. If in the Engineer's sole discretion, the concrete is allowed to be remain, a pay factor reduction will be applied to the concrete as shown in Table 601-3. In subsection 601.17(d), delete Table 601-3 and replace with the following: 1341 Page October 1, 2021 14 REVISION OF SECTION 601 STRUCTURAL CONCRETE Table 601-3 Pay Factor Reductions Percent Total Air Strength Deviations from Specified Air (%) Pay Factor Reduction (%) Below Specified Strength (psi) Pay Factor Reduction (%) 0.0-0.2 2 1-100 10 0.3-0.4 4 101-200 20 0.5-0.6 8 201-300 30 0.7-0.8 16 301-400 40 0.8-1.0 25 401-500 50 Over 1.0 Reject Over 500 Reject NOTE: The pay factor reduction formula is Payment for Item = 100 — Pay Factor Reduction. For example, the payment for a structure below the required strength by 250 psi and is allowed to remain in place by the Engineer would be 70% of the unit price (payment = 100-30). Subsection 601.17 shall include the following: (h) Consolidation Testing The provisions relating to the frequency and amplitude of internal vibration will be considered the minimum requirements and are intended to ensure adequate density in the hardened concrete. If a lack of consolidation of the concrete is suspected by the Weld County Project Manager, additional referee testing will be required. Referee testing of hardened concrete will be performed by cutting cores from the finished pavement after a minimum of 24 hours for curing. Density determinations will be made based on the water content of the core as taken. ASTM C 642 will be used for the determination of core density in the saturated -surface dry condition. Referee cores,will be taken at the minimum rate of one for each 500 cubic yards of pavement, or fraction thereof. The average density of the cores must be at least 97 percent of the original mix design density, with no cores having a density of less than 96 percent of the original mix design density. Failure to meet the above requirements will be considered evidence that the minimum requirements for vibration are inadequate for the job conditions, and additional vibrating units or other means of increasing the effect of vibration will be employed so that the density of the hardened concrete as indicated by further referee testing will conform to the above -listed requirements. All failing concrete will be removed and replaced. END OF SECTION 1351 Page October 1, 2021 1 REVISION OF SECTION 602 REINFORCING STEEL Subsection 602.02, paragraph one shall be deleted and replaced with the following: Reinforcing steel shall be epoxy coated and shall meet the requirements of subsection 709.01. Welded wire fabric that will be furnished either uncoated or coated shall meet the requirements of subsection 709.01. The coating material for epoxy coated reinforcing shall be a light colored powdered epoxy resin which will highlight rusting of untreated bar areas. Reinforcing alternatives such as: Stainless, Continuous Hot dipped Galvanized, Zinc Coated (Galvanized), and Chromium reinforcing may be supplied for reinforcing steel or epoxy coated reinforcing, at the Contractor's option, at no additional cost or time to the Department as approved by the Engineer. Length of lap splices for reinforcing steel shall be in accordance with AASHTO LRFD Bridge Design Specifications, unless otherwise specified. Subsection 602.08 shall be revised as follows: Payment will be made under: ay Item ay Unit einforcing Steel ound einforcing Steel (Epoxy Coated) ound einforcin Steel Galvanized ound einforcing Steel (Stainless) ound Reinforcing Steel (High Performance) Pound END OF SECTION 1361 Page October 1, 2021 1 REVISION OF SECTION 603 CULVERTS AND SEWERS Section 603 of the Standard Specifications is hereby revised for this project as follows: Subsection 603.02 shall be revised to include the following: Reinforced concrete pipe shall be manufactured from concrete that meets the requirements for severity of sulfate exposure specified on the plans. Subsection 603.05, delete the first sentence and replace with the following: Bedding shall be prepared in accordance with Table 603-1. Table 603-1 Pipe Bedding Materials Gradation Size Percent Passing 3/8" 80-100 #4 0-80 #200 0-4 Subsection 603.07(a), delete the second paragraph and replace with the following: Joints for all circular reinforced pipes will be made with confined rubber gaskets conforming to subsection 705.05. Concrete collars will be required at all non-standard joints (not tongue and groove or bell and spigot) and at all connections to existing pipe. END OF SECTION 1371Page October 1, 2021 I REVISION OF SECTION 607 FENCES Section 607 of the Standard Specifications is hereby revised for this project as follows: Subsection 607.01 is hereby revised as follows: Work in this section will include installation of temporary chain link fence per the Plans. Subsection 607.03 is hereby revised to include the following paragraphs: The temporary fence shall be 6 feet tall (minimum) chain link fence staked into the ground 18 inches depth (minimum) per the Plans where feasible. Sandbags shall be used to secure the fence where stakes are not feasible. Sandbags, staking, and gate installation (if necessary) shall be considered subsidiary to the final installed fence and no separate pay item shall be included. Subsection 607.04 is hereby revised as follows: All fence types will be measured by the Linear Foot including posts at the base of the fence. Gate installation (if necessary) shall be considered subsidiary to the final installed fence and no separate pay item shall be included. Subsection 607.05 is hereby revised as follows: Payment for all fences will be full compensation for all labor, materials, and equipment required to construct the fence. Pay Item Fence Chain Link (Temp) END OF SECTION 1381 Page Pay Unit Linear Foot (LF) CDOT Standard Special Provisions Title Page No. Revision of Section 212 — Soil Amendments, Seeding and Sodding 140-156 139 1 Page October 1, 2021 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING NOTICE This is a standard special provision that revises or modifies CDOT's Standard Specifications for Road and Bridge Construction. It has gone through a formal review and approval process and has been issued by CDOT's Project Development Branch with formal instructions for its use on CDOT construction projects. It is to be used as written without change. Do not use modified versions of this special provision on CDOT construction projects, and do not use this special provision on CDOT projects in a manner other than that specified in the instructions unless such use is first approved by CDOT's Standards and Specifications Unit. The instructions for use on CDOT construction projects appear below. Other agencies which use the Standard Specifications for Road and Bridge Construction to administer construction projects may use this special provision as appropriate and at their own risk. Instructions for use on CDOT construction projects: Use in projects having earthwork disturbances that will be stabilized with vegetation. 140IPage October 1, 2021 141 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Section 212 of the Standard Specifications is hereby deleted for this project and replaced with the following: DESCRIPTION 212.01 This work consists of application of fertilizer, soil amendments, seedbed preparation, and placing seed and sod. Substitutions from this specification will not be allowed unless submitted in writing to the Engineer and approved by the Region or Headquarters Landscape Architect. MATERIALS 212.02 Seed, Fertilizers, Soil Conditioners, Mycorrhizae, Elemental Sulfur, and Sod. (a) Seed. Seed shall be delivered to the project site in sealed bags tagged by a registered seed supplier conforming to the requirements of the Colorado Seed Act, CRS 35-27-111(1). Seed used on the project shall not be in the Contractor's possession for more than 30 days from the date of pickup or delivery on the seed vendors packing slip. Bags which have been opened or damaged prior to Engineer inspection will be rejected. The State required legal tags shall remain on the bag until opened and the seed is placed in either the drill or hydraulic seeders in the presence of the Engineer. The Engineer shall remove all tags after seed has been planted. Each seed tag shall clearly show the following: (1) Name and address of the supplier (2) Botanical and common name for each species (3) Lot numbers (4) Percent by weight of inert ingredients (5) Guaranteed percentage of purity and germination (6) Pounds of Pure Live Seed (PLS) of each seed species (7) Total net weight in pounds of PLS in the sealed bag (8) Calendar month and year of test date Seeds shall be free from all noxious weed seeds in accordance with Colorado Seed Act (CRS 35-17) prohibited noxious weed seed list. Weed seed content shall not exceed the requirements in part 7.2 of the Colorado Department of Agriculture's Seed Act Rules and Regulations. Seed which has become wet, moldy, or damaged in transit or in storage will not be accepted. Seed and seed labels shall conform to all current State regulations and to the testing provisions of the Association of Official Seed Analysis. Computations for quantity of seed required on the project shall include the percent of purity and percent of germination. The Contractor shall store seed under dry conditions, at temperatures between 35 °F to 90 °F, under low humidity and out of direct sunlight. The Contractor shall provide the location of where seed is stored and access to stored seed locations to the Engineer. Seed stored by the Contractor for longer than 30 days will be rejected. 141 Page October 1, 2021 2 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING (b) Organic Fertilizer. Fertilizer derived directly from plant or animal sources shall conform to Colorado Revised Fertilizer Rules 8 CCR 1202-4. Fertilizer shall be uniform in composition and shall be delivered to the site in the original, unopened containers, each bearing the manufacturer's name, address, and nutrient analysis. Fertilizer bags (containers) which arrive at the project site opened, damaged, or lacking a label will be rejected. The Contractor shall only use bulk shipments such as tote bags or super sacks that have a manufacturer's original label and sealed at the manufacturing facility. Fertilizer which becomes caked or damaged will not be accepted. Fertilizer shall be stored according to manufacturer's recommendations in a dry area where the fertilizer will not be damaged. Organic fertilizer formulation being submitted for use must be registered with the Colorado Department of Agriculture. Verification tests may be conducted by CDOT on grab samples of organic fertilizer delivered to the site to determine the reliability of bag label analysis and for ingredients which are injurious to plants. If a product of any supplier is found to consistently deviate from the bag level analysis, the acceptance of that product will be discontinued. Copies of the failing test reports will be furnished to the Colorado State Board of Agriculture for appropriate action under the "Colorado Fertilizer Law". Fertilizer shall be supplied in one of the following physical forms: (1) A dry free -flowing granular fertilizer, suitable for application by agricultural fertilizer spreader. (2) A homogeneous pellet, suitable for application by agricultural fertilizer spreader. Pellet size shall be 2-3 mm. Smaller may be allowed when Seeding (Native) Hydraulic is shown on the plans. (3) A soluble form that will permit complete suspension of insoluble particles in water, suitable for application by power sprayer. The application rate of the organic fertilizer shall be either as high or low nitrogen (N) fertilizer as shown on the plans. High N organic fertilizer chemical analysis shall conform to Table 212-1. Table 212-1 Chemical Analysis for High N Fertilizer H Ingredient I Range I Test Method 11 Phosphorus (P) N 1 - 8 AOAC Official Method 960.03 Phosphorus (Available) in Fertilizers Potassium (K) (%) 1 AOAC Official Method 983.02 Potassium in Fertilizers Low N organic fertilizer chemical analysis shall conform to Table 212-2. Table 212-2 Chemical Analysis for Low N Fertilizer I Inaredient Ranae l Test Method I I Phosphorus (P) (%) 3 - 8 ( AOAC Official Method 960.03 Phosphorus (Available) in Fertilizers 142 1 Page October 1, 2021 3 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Organic fertilizers shall conform to Table 212-3. Table 212-3 Organic Fertilizer Properties Criteria Range Moisture content by weight <6% (c) Compost (Mechanically Applied). Compost shall be suitable for use in Erosion Log (Type 2) and permanent seeding applications. Compost shall not contain visible refuse, other physical contaminants, or substances considered harmful to plant growth. Compost shall be used in accordance with all applicable EPA 40 CFR 503 standards for Class A biosolids including the time and temperature standards. Materials that have been treated with chemical preservatives as a compost feedstock will not be permitted. The Contractor shall provide material that has been aerobically composted in a commercial facility. Compost shall be from a producer that participates in the United States Composting Council's (USCC) Seal of Testing Assurance (STA) program. The Department will only accept STA approved compost that is tested in accordance with the USCC Test Methods for Examining of Composting and Compost (TMECC) manual. Verification tests may be conducted by COOT on grab samples of compost delivered to the site to determine the gradation and physical properties. Testing may be done for indication of ingredients which are injurious to plants. Sampling procedures will follow the STA 02.01 Field Sampling of Compost Materials and 02.01-B Selection of Sampling Locations for Windrows and Piles. If a product is found to consistently deviate from the gradation and property analysis, the acceptance of that product will be discontinued. Copies of the failing test reports will be furnished to the USCC. 1. Compost for permanent seeding soil conditioner locations onsite and application rates shall be as shown on the plans. Organic matter in compost shall be no more than 2 inches in length. Compost (Mechanically Applied) for permanent seeding shall meet the gradation and physical properties as shown in Table 212-4 and Table 212-5. The Contractor shall provide a written explanation for compost tested parameters not within the acceptable requirements for review and consideration. The Contractor shall provide documentation from the composting facility confirming that the material has been tested in accordance with USCC TMECC. Table 212-4 Gradation for Permanent Seeding Compost Sieve Size Percent Passing Minimum Maximum Test Method 25.0 mm 1° 100 TMECC 02.02 B, "Sample S►evi for Aggregate Size Classification" 19.0 mm (3/4") 90 100 6. mm 1/4" 70 100 Note: Compost shall be from a producer that participates in the USCC STA program. 1431 Page October 1, 2021 4 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Table 212-5 Properties for Permanent Seeding Compost 2. Compost for Erosion Log (Type 2) shall meet the gradation and physical properties as shown in Table 212- 6 and Table 212-7. Table 212-6 Gradation for Erosion Log (Type 2) Compost Sieve Size Percent Passing Minimum Maximum Test Method X5,0 mm . 100 TMECC 02.02-B, 'Sample Sieving for .; Aggregate Size Classification" 25.0 mm (1") 90 100 9.5 mm " `10 50 Note: Organic matter for erosion log compost shall be no more than 4 inches in length. Compost shall be from a producer that participates in the USCC STA program. 144 1 Page October 1, 2021 5 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Table 212-7 Properties for Erosion Log (Type 2) Compost Compost Parameters Reported as Requirement s Test Method pH pH units 6.0- 8. TMECC 04.11-A Soluble Salts (Electrical dS/m (mmhos/cm) < 5.0 TMECC 04.10-A Conductivity) Moisture Content % wet weight basis <60% TMECC 03.09-A Organic Matter Content %, dry weight basis 25% - 100% TMECC 05.07-A Man-made .. Inert Contami n (plastic, .' concrete€. %, dry weight basis <0.5% TMECC 03.08-A ceramics, metal, etc.) Stability (respirometry) mg CO2-C per g TS per day mg CO2-C per g OM per day N/A TMECC 05.08-B Select Pathogens (PASSIFAIL) Limits: TMECC 07.01-B . Fecal �#bcrne, wed°freeor Salmonella < MPI /4 grams ofTS, or . Pass , . ,Co Eta 0Z C€ t)forrrr'Bacteria < 1000 MPN/gratrt Salmonella (PASS/FAIL) Limits (mg kg -1. dw basis): Trace Metals Arsenic (As) 41, Cadmium (Cd) 39, Pass TMECC 04.06 Copper (Cu)1500, Lead (Pb) 300, Mercury (Hg) 17, Nickel (Ni) 420, Selenium (Se) 100, Zinc (Zn) 2800 Maturity (Bioassay) Percent Emergence %, (average) N/A TMECC 0.05-A Relative Seedling nor.; ) N/A (d) Biotic SoilAmendments (Hydraulically Applied). Soil amendments shall be a combination of natural fibers, growth stimulants, and other biologically active material designed to improve seed germination and vegetation establishment as shown in Table 212-8. Biotic soil amendments shall be pre-packaged in ultraviolet and weather resistant packaging and labeled from the manufacturer. Bags (containers) which arrive at the project site opened, damaged, or lacking a label will be rejected. Bulk shipments such as tote bags will be rejected. Biotic soil amendments shall be stored in locations not exceeding 80 °F. Acceptance of material shall be subject to the requirements of the Department's Approved Product List (APL). The application rate of the biotic soil amendments shall be in accordance with the rates shown on the plans. Use of mulch tackifier (Plantago Insularis or pre -gelatinized corn starch polymer) shall be in accordance with Section 213. It shall be used as a wetting agent at a rate of 30 pounds per acre. Biotic soil amendments shall provide a continuous and uniform cover and shall consist of one of the components in Table 212-8 and all of the performance and physical properties in Table 212-9. 145 1 Page October 1, 2021 6 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Table 212-8 Required Percentage Ranges of Biotic Soil Amendments Components Units Requirement Professional grade sphagnum, peat moss, professional grade reed sedge peat moss or compost that meets the %, dry weight basis 41 Seal of Testing Assurance Program of the US Composting Council'. Mechanically processed straw consisting of weed free % dry weight basis < 57% agricultural straw, flexible flax fiber or rice hulls , Table 212-9 Performance and Physical Requirements of Biotic Soil Amendments Parameters Reported as Requirement Test Method H pH units 5.0— 7.5 ASTM D1293 . Moisture content %, wet weight basis 10% - 50% ASTM D 2974 Organic matter content %, dry weight basis > 850/0 ASTM D586 Carbon Nitrogen Ratio Ratio C:N < 38:1 ASTM E1508 Man-made inert contamination % dry weight basis <1.0% ASTM E729 - Pass (non- 96(2014) or Acute Toxicity (Pass/Fail) toxic) EPA Method 2021.0 or EPA Method 2002.0 Vegetative Minimum > 400% ASTM 7322 The Contractor shall provide a CTR with independent laboratory analysis for the required parameters in accordance with subsection 106.13. (e) Humate. The Contractor shall provide a screened dry granular form of organic humic and fulvic acid substance. Humate shall be pre-packaged and labeled from the manufacturer. Bags (containers) which arrive at the project site opened, damaged, or lacking label will be rejected. The Contractor shall only use bulk shipments such as tote bags or super sacks that have a manufacture's original label and sealed at the manufacturing facility. Humate shall be stored in locations not exceeding 80 °F. Humate shall be provided in accordance with the rates shown on the plans. Product shall conform to the parameters in Table 212-10 and Table 212-11. Table 212-10 Screened Size Requirements for Humate Seeding Method Reported as Requirement Seeding (Native) Drill, Hydraulic and Broadcast < . inches < 1/4 1461Page October 1, 2021 7 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Table 212-11 Performance and Physical Requirements of Humate Parameters Reported as Requirement Test Method Organic Matter , % dry weight basis >70% Fines (material that is finer than the ,No. 200; (75 -pm) ,' sieve) %, dry weight basis <2% ASTM D7s28 pH pH units 3.0-4.5 "ASTM D1293 Acute Toxicity Pass / Fail Non Toxic ASTM 7101 or EPA Method 2021 or 2002 Humic and Fulvic Acids %, dry weight basis > 70% A & L Westerrt method; total alkali extractable Carbon Content %, dry weight basis 40% - 50% Moisture Content %, dry weight basis < 20% Heavy Metal / Ash Content %, dry weight basis < 15% The Contractor shall provide a CTR with independent laboratory analysis for the required parameters in accordance with subsection 106.13. (f) Mycorrhizae. Mycorrhizae shall arrive onsite in original and undamaged packaging. Handling of this material shall follow manufacturer's safety recommendations. Mycorrhizae shall be stored onsite in such a way as to avoid exposure to direct sunlight for more than four hours and to prevent package temperatures to rise above 85 °F. The endo mycorrhizal inoculum shall provide at least 60,000 propagules per pound and shall contain all of the following species and conform to the parameters in Table 212-12: (1) Glomus intraradices (a.k.a. Rhizophagus intraradices) (2) Glomus mosseae (a.k.a. Funneliformis mosseae) (3) Glomus aggregatum (a.k.a. rhizophagus aggregatus) (4) Glomus etunicatum (a.k.a. Claroideoglomus etunicatum) Table 212-12 Physical Requirements of Endo Mycorrhizae Parameters Reported as Requirement Test Method Acute 1xicty Pass or Fail Non Toxic ASTM 7101 or EPA Method 2021 or 2002 The Contractor shall provide a CTR with independent laboratory analysis has been done on the product for the required parameters in accordance with subsection 106.13. The following rates shall be used for Seeding Methods: (1) For Seeding (Native) Drill, the mycorrhizae product shall be provided as a dry free -flowing granular material, suitable for application by agricultural drill seeder. Application rate shall be 8 pounds per acre. (2) For Seeding (Native) Hydraulic, the mycorrhizae product shall be provided as a fine granular (< 2 mm) or powdered form (particle size less than 300 microns) that will permit complete suspension and used with hydro -seeder equipment. Application rate shall be 20 pounds per acre. 147 1 Page October 1, 2021 8 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING (3) For Seeding (Native) Broadcast, the mycorrhizae product shall be provided as a dry free -flowing granular material, suitable for application by fertilizer spreader. Application rate shall be 20 pounds per acre. (g) Elemental Sulfur. The Contractor shall provide a free -flowing granular material consistent in size suitable for application by agricultural spreader and conform to the parameters in Table 212-13. Elemental sulfur shall arrive onsite in original and undamaged packaging. Table 212-13 Physical Requirements of Elemental Sulfur Parameters Reported as Requirement Guaranteed Analysis of Elemental Sulfur (S) % > 90 Bulk Density Lbs per cu. ft. > 75 (h) Sod. Sod shall be nursery grown and 99 percent weed free. Species shall be as shown on the plans. The 1 percent allowable weeds shall not include undesirable perennial or annual grasses or plants defined as noxious by current State statute or county noxious weed list. Soil thickness of sod cuts shall not be less than s inch or more than 1 inch. Sod shall be cut in uniform strips with minimum dimensions of 18 inches in width and 48 inches in length. The Contractor shall submit a sample of the sod proposed for use, which shall serve as a standard if approved. Sod furnished, whether in place or not, that is not up to the standard of the sample will be rejected. CDOT will reject all sod that was cut more than 72 hours prior to installation. Each load of sod shall be accompanied by a certificate from the grower stating the type of sod and the date and time of cutting. The Contractor shall submit the certificate to the Engineer prior to application of the sod. Only sod that is accompanied by the certificate from the grower will be accepted and paid for. CONSTRUCTION REQUIREMENTS 212.03 Submittals. The Contractor shall provide the name and contact information of the seeding contractor 30 days prior to start of seeding work. The Contractor shall provide two copies of items (1) - (14) listed below to the Pre -vegetation Conference in accordance with Section 207. When the Contractor provides resubmittals to meet Contract requirements, the Region or Headquarters Landscape Architect shall be copied on all correspondence. (1) Written confirmation from the registered seed supplier, on the Contractor's letterhead, that the Contract specified seed has been secured. No substitutions of the contract specified seed will be permitted unless evidence is submitted, from one of the registered seed suppliers that the Contract specified seed is not available and will not become available during the anticipated construction period. (2) Seed vendor's "seed dealer" endorsement. (3) A copy of each seed species germination report of analysis that verifies the lot has been tested by a recognized laboratory for seed testing within 13 months prior to the date of seeding. (4) A copy of each seed species purity laboratory report of analysis that verifies that the lot has been tested by a recognized laboratory for seed testing. The report shall list all identified species, seed count, and date of test. (5) Manufacturer's documentation stating that the fertilizer meets the Contract requirements. (6) Organic fertilizer documentation showing manufacturer and chemical analysis. (7) Permit issued from CDPHE confirming that the vendor can produce or sell compost in accordance with House Bill (HB) 1181. (8) Documentation from the compost manufacturer that it is a participating member of in the U.S. Composting Council's Seal of Testing Assurance Program (STA). 1481 Page October 1, 2021 9 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING (9) Results of compost testing on an STA Compost Technical Data Sheet confirming all required test methods are met using the STA Program. (10) Sample of physical compost (at least one cubic foot of material). (11) Manufacturer's documentation confirming that biotic soil amendment meets the required physical and performance criteria based on independent testing by the manufacturer. (12) Manufacturer's documentation confirming that humate meets the required physical and performance criteria based on independent testing by the manufacture. (13) Manufacturer's documentation confirming that mycorrhizae meets the physical criteria based on independent testing and that the minimum required species is provided. (14) Pictures and descriptions of seeding equipment proposed to be used on the project. Based on the seeding methods required at a minimum this should include the drill seeder, hydraulic seeder, cultipacker or seed bed roller implements. (15) Instructions and documentation on how seeders will be calibrated onsite, in accordance with subsection 212.05(a). 212.04 Seeding Seasons. Seeding in areas that are unirrigated shall be restricted according to the parameters in Table 212-14. Table 212-14 Seeding Seasons Zone I Spring Seeding Fall Seeding Areas other than the Western Slope Below 6000' Spring thaw to June 1. September 1.5 until consistent ground freeze 6000' - 7000' Spring thaw to June 1 September 1 until consistent ground freeze 7000' - 8000' Spring thaw to July 15 August 1 until consistent ground freeze Above 8000' Spring thaw to consistent ground freeze Western Slope Below 6000' Spring thaw to May 1 ' August 1 until consistentground freeze 6000' - 7000' Spring thaw to June 15 September 1 until consistent ground freeze Above X000' . Spring , g thaw to consistent round freeze (1) "Spring thaw" is the earliest date in a new calendar year in which seed can be buried 1/2 inch into the surface soil (topsoil) through normal drill seeding methods. (2) "Consistent ground freeze" is the time during the fall months in which the surface soil (topsoil), due to freeze conditions, prevents burying the seed'/ inch through normal drill seeding operations. Seed shall not be sown, drilled, or planted when the surface soil or topsoil is in a frozen or crusted state. Seeding accomplished outside the time periods listed above will be allowed only when the Contractor's request is approved by the Engineer in writing, with coordination from the Region Landscape Architect. If requested by the Contractor, the Contractor must agree to perform the following work at no cost to the Department: reseed, remulch, and repair areas which fail to produce species indicated in the Contract. If seeding is ordered by the Engineer outside the time periods listed above, the cost to repair areas that fail to produce species will be paid for by the Department. 212.05 Native Seeding Methods. Areas to be seeded shall be installed in accordance with SWMP Permanent Stabilization Plan. All amendments and seeding shall be applied based on the seeding method and rates specified on the plans. 1491 Page October 1, 2021 10 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING The Contractor shall complete the Amendments Verification Prerequisite for each of the seeding methods described herein. This shall be done by completing a Seed and Amendment Quantities Worksheet for each work area. This worksheet shall have a list of all amendments and the seed labels for each of the areas to be worked on. The State required legal tags shall remain on the bag until opened and the seed placed in either the drill or hydraulic seeders in the presence of the Engineer. Seeding work shall not begin until written approval of the worksheet has been received from the Engineer. In determining the weight of seed required for each work area, the Contractor shall use the Pure Live Seed (PLS) weight shown on each bag of seed. Calculations based on net weight will not be accepted. The Contractor shall submit a proposed Permanent Stabilization Phasing Plan to the Engineer prior to the Pre- revegetation Conference for approval showing how the SWMP Permanent Stabilization Plans will be implemented to minimize traffic loading damage to subgrade soil prepared and seeded areas. The proposed sequencing shall consider and identify strategies and site management control measures to protect seeded areas from foot, vehicle, and other disturbances. The strategic planning of the permanent seeding and mulch shall consider all other phasing of construction activities including traffic management and utility work. Areas damaged due to the Contractor's failing to protect the seeded areas shall be repaired at no cost to the Department. Seeded areas damaged due to circumstances beyond the Contractor's control shall be repaired and reseeded as ordered. Payment for corrective work, when ordered, shall be at the Contract prices shown and in accordance with subsection 109.04. The following seeding application methods shall not be implemented during winds which are consistently higher than 20 MPH, or when the ground is frozen, excessively wet, or otherwise untillable. The Engineer may test to see if the moisture level in the soil is acceptable to work the soil by performing a Soil Plasticity Test as described in the Construction Manual. Multiple seeding operations shall be anticipated, based on acceptable seeding conditions. The seeding methods to be implemented shall be one or more of the following, as shown on the plans: (a) Seeding (Native) Drill. (i) Fertilizer, Compost, Humates and Elemental Sulfur. The Contractor shall uniformly apply compost and elemental sulfur on the surface of the topsoil using an agricultural spreader at the rate of application specified on the plans. All competitive, non-native vegetation shall be uprooted and hauled offsite prior to spreading amendments. Prior to starting incorporation of compost and elemental sulfur, the Contractor shall receive written acceptance from the Engineer on the Seed and Amendment Quantities Worksheet. Verification Prerequisite for this method also requires documentation on the Permanent Stabilization SWMP Site Maps with the approved areas outlined, signed, and dated by the Engineer to track progress. If SWMP Site Maps are not included in the Contract, the Contractor shall use the Contract grading or roadway plan sheets. Once the Quantities Verification Prerequisite is completed for an area, the Contractor shall homogenously incorporate the compost and elemental sulfur into the top 6 inches of topsoil. Tillage of the amendments shall be completed using a disc and harrow, field cultivator, vibra-shank, or other method suitable to site conditions. For small areas tillage shall be completed using rotary tillers. No measurable depth of organic amendment shall be present on the surface. The shanks on the back of a grader or dozer shall not be used for tillage. Tillage may take multiple passes to achieve the desired harmonious incorporation. If multiple passes are required, the Contractor shall cross till the soil with the second pass occurring at a 30 -degree angle to the first pass. On slope areas, all tillage shall be parallel to the contour. For project that will utilize aggregate or recycled asphalt shouldering material amendments, tillage is not required under shouldering material. Projects seeding up to the edge of pavement, tillage is not required for first 12" from the edge of pavement. Once incorporation of compost and elemental sulfur is approved, the Contractor shall uniformly apply fertilizer and humates on the surface of the topsoil using an agricultural spreader, as shown in the Contract documents. (ii) Seedbed Preparation. Amended topsoil shall be cultivated to a firm but friable seedbed using cultipacker or 1501 Page October 1, 2021 11 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING seed bed roller implements. Crusted hard soils shall be broken up and all areas shall be free of clods, sticks, stones, debris, concrete, and asphalt in excess of 4 inches in any dimension in accordance with Section 207. Areas shall be left in a rough and uncompacted condition with a surface variance of 2 to 4 inches. (iii) Seed and Mycorrhizae. Prior to seeding, the finished grade of the soil shall be 1 inch below the top of all curbs, junction and valve boxes, walks, drives and other structures. Seeding shall be done within two days of seedbed preparation efforts (tilling or scarifying). If a rain event occurs that compacts or erodes the seedbed prior to performing seeding, the seedbed shall be re -prepared as directed by the Engineer. Areas shall be seeded by mechanical power drawn drills suitable for area soils, topography, and size followed by packer wheels. Mechanical power drawn drills shall have furrow openers and depth bands set to maintain a planting depth of at least ¼ inch and not more than '/2 inch and shall be set to space the rows not more than 8 inches apart. Seeding equipment shall have a double disk opener, seed box agitator, and seed metering device. The seeder shall be calibrated by collecting seed from a single drop tube in the presence of the Engineer based on the following procedure. The Contractor shall provide the tape measure, scale, collection cup, and seed bag with complete label from the supplier. The Contractor may submit an alternative method for approval at the site Pre -vegetation Conference. (1) Measure the total width (W) of the drill seeder in feet. (2) Count the number of drill rows (N) on the seeder. (3) On drill seeders that the tire drives the seeding mechanism, measure the tire circumference (C) in feet. (4) Calculate the number of rotations the tire will complete per acre using the following equation: A = one acre or 43,560 square feet (SF) A /W = feet (F) the drill seeder needs to travel for each acre F/C = number of rotations (R) of the tire per acre (5) Reduce the amount of tire rotations by one tenth. 90R = # Tire rotations to calibrate seeder (RCS) (6) Find the seeding rate (LBS PLS / Acre) on the Stormwater Management Plan. (7) Using the information from the seed tag, convert the PLS seed rate to a bulk seeding rate using the following equations: % PLS = (% purity (in decimal form) from seed label) x (% germination (in decimal form) from seed label) (LBS PLS / Acre) from the SWMP / % PLS = Required bulk seed per acre in LBS (8) Reduce the required bulk seed per acre based on the number of seeder tubes. Required bulk seed per acre / N = Weight in LBS of bulk seed from one tube (9) Reduce the required bulk seed rate from the tube by one tenth. 0.90 x Weight of bulk seed from one tube = Collected bulk seed weight (CBS) in LBS (10) Set the drill seeder to the correct seeding rate using the manufacturer's recommendation. (11) With the collection cup under one tube and the driving wheel jacked up, rotate the tire the RCS amount of times. Use the value stem to count the rotations. (12) Using the scale, weigh the seed in the collection cup. 1511 Page October 1, 2021 12 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING (13) Adjust the drill calibration until the weight of bulk seed in the collection cup equals the CBS in LBS Drill seeders shall be recalibrated every time the drill is mobilized onsite. The Contractor shall submit a written statement that the equipment is calibrated, and shall provide the correct depth based on conditions before seeding actions are initiated. The Contractor shall continuously monitor equipment to ensure that it is providing a uniform seed application. If mycorrhizae is called for on the plans, the granules shall be included with the seed in the drill seeder such that the mycorrhizae is placed at or below the seed. The distance between furrows produced using the drill shall not be more than 8 inches. If rows on the drill exceed 8 inches, the Contractor shall drill the areas twice (if achievable at 30 -degree angles to each other) at no additional cost to the Department. After seeding, the furrows that were created by the drill shall be maintained in place. Construction traffic, other than what is needed to mulch the areas, shall not be permitted on the areas completed. Permanent stabilization mulching shall be accomplished within 24 hours of drill seeding. (b) Seeding (Native) Hydraulic. This method utilizes water as the carrying agent and mixes biotic soil amendments, seed, organic fertilizer, humates, mycorrh¢ae and elemental sulfur into a single slurry for hydraulic application. The Contractor shall furnish and place combined slurry with a hydro -seeder that will maintain a continuous agitation and apply homogenous mixture through a spray nozzle. The pump shall produce enough pressure to maintain a continuous, non -fluctuating spray that will reach the extremities of the seeding area. Water tanks shall have a means of measuring volume in the tank. Seed shall be added to the slurry onsite, no more than 60 minutes before starting application. Slurry shall be applied from a minimum of two opposing directions to achieve complete soil coverage. The application of the single slurry shall be applied within four hours of adding Mycorrhizae The Contractor shall prevent seed, fertilizer, and mulch from falling or drifting onto areas occupied by rock base, rock shoulders, plant beds, or other areas where grass is detrimental. The Contractor shall remove material that falls on plants, roadways, gravel shoulders, structures, and other surfaces where material is not specified. (i) Seedbed Preparation. All areas shall be loosened to at least 6 inches, leaving the surface in rough condition with a surface variance of 6 to 8 inches. On steep slopes, tillage shall be accomplished with appropriate equipment as the slope is constructed. Soil areas shall be tilled to produce loose and friable surfaces with crusted hard soils broken up. All slopes shall be free of clods, sticks, stones, debris, concrete, asphalt and all other materials in excess of 4 inches in any dimension. All competitive, non-native vegetation shall be uprooted and hauled offsite prior to spreading amendments. Under no circumstances shall the ground surface be smooth and compacted. (ii) Biotic Soil Amendment, Fertilizer, Humate, Mycorrhizae and Seed. The Contractor shall assemble all materials for proposed areas to hydro -seed and review quantities with area of coverage with the Engineer as the Quantities Verification Prerequisite for this method. Prior to mixing in the tank, the Contractor shall receive written acceptance from the Engineer on the Seed and Amendment Quantities Worksheet that the correct quantities are onsite. This quantities verification prerequisite also requires documentation on the Permanent Stabilization SWMP Site Maps with the approved areas outlined, signed, and dated by the Engineer to track progress. If SWMP Site Maps were not included in the Contract, grading or roadway plan sheets shall be used. For the verification process, the Contractor shall provide the Engineer with all documentation for materials in unopened packaging. 152 I P a g e October 1, 2021 13 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING After the Quantities Verification Prerequisite has been approved, the hydro -seeder shall be filled with water to 1/3 of its required volume. Following this, water and biotic soil amendments shall be added to the hydro - seeder at a consistent rate. The ratio of water to Biotic Soil Amendments shall be in accordance with manufacturer's recommendations. Fertilizer, humates and mycorrhizae shall then be added until the tank has reached 3/4 of its required volume. The tank shall then be filled with water to the required volume. Uniform slurries shall be agitated or mixed for a minimum of ten minutes after all water and materials are in the tank. Hydraulic seeding equipment shall include a pump capable of being operated at 100 gallons per minute and at 100 pounds per square inch pressure. The equipment shall have a nozzle adaptable to hydraulic seeding requirements. Storage tanks shall have a means of estimating the volume used or remaining in the tank. Seed shall be added to the slurry onsite no more than 60 minutes before starting application. The Contractor shall increase the Seed Plan rates (LBS PLS / Acre) as shown on the plans by 1.5 times at no additional cost to the Department. The Contractor may be required to apply slurry using multiple hoses to ensure uniform application to all areas of the site. Coverage rates shall be based on the volume of material in the tank, as verified by the Engineer. Areas of lighter applications (covering more area than what is calculated) will require additional application, as directed. An appropriate curing period shall be in accordance with manufacturer's recommendations, and shall consider forecasted weather conditions. Permanent stabilization mulching shall be accomplished within 24 hours of hydraulic application of native seed. (c) Seeding (Native) Broadcast. This method utilizes hand equipment to broadcast spread amendments and seed over prepared seedbeds (i) Fertilizing, Compost, Humate and Elemental Sulfur. The Contractor shall uniformly apply compost and elemental sulfur on the surface of the placed topsoil using an agricultural spreader at the rate of application specified on the plans. All competitive non-native vegetation shall be uprooted and hauled offsite prior to spreading amendments. Prior to starting incorporation, the Contractor shall receive written acceptance from the Engineer on the Seed and Amendment Quantities Worksheet that the correct quantities will be applied. The Quantities Verification Prerequisite for this method also requires documentation on the Permanent Stabilization SWMP Site Maps with the approved areas outlined, signed, and dated by the Engineer to track progress. If SWMP Site Maps are not included in the Contract, the grading or roadway plan sheets shall be used. Once the Quantities Verification Prerequisite is completed for an area, the Contractor shall homogenously incorporate the Compost into the top 6 inches of soil. Tillage of the amendments shall be completed using appropriate tools depending on the size of the area to be worked. Contractor shall use hand tillers or approved small space implements. Once incorporation of compost and elemental sulfur is approved, the Contractor shall uniformly apply organic fertilizer and humates on the surface of the topsoil using an agricultural spreader. (ii) Seedbed Preparation. Amended topsoil shall be cultivated to a firm but friable seedbed using tractor implements. Crusted hard soils shall be broken up and all areas shall be free of clods, sticks, stones, debris, concrete, and asphalt in excess of 4 inches in any dimension in accordance with Section 207. Areas shall be left in a rough condition with a surface variance of 2 to 4 inches. Under no circumstances shall the ground surface be smooth and compacted. (iii) Seed and Mycorrhizae. Prior to seeding, the finished grade of the soil shall be 1 inch below the top of all curbs, junction and valve boxes, walks, drives and other structures. Seeding shall be accomplished within 153 1 Page October 1, 2021 14 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING two days of seedbed preparation efforts (tilling or scarifying) to make additional seedbed preparation unnecessary. If a rain event occurs that compacts or erodes the seedbed prior to performing seeding, the seedbed shall be re -prepared as directed. Areas shall be seeded by broadcast -type seeders (cyclone or approved mechanical seeders). The Contractor shall increase the Seed Plan rates (LBS PLS / Acre) as shown on the plans by 1.5 times at no additional cost to the Department. After seeding, mycorrhizae shall be evenly hand -distributed across the area. Seed and mycorrhizae shall be covered by hand raking and covering with 1/4 to 1/ inch of topsoil. To ensure seeds have a firm contact with the soil the Contractor shall use a heavy roller as approved in the Site Pre -vegetation Conference. Mycorrhizae shall not be exposed to sunlight for more than four hours. Using equipment with continuous cleat tracks (cat -tracking) to cover seed is not permitted. Permanent stabilization mulching shall be accomplished within 24 hours of broadcast seed application of native seed. 212.06 Seeding (Temporary). Areas of topsoil shall be seeded with annual grasses in accordance with SWMP Interim Site Maps or as directed by the Engineer. Seeding may take place at any time during the year as long as the ground is not covered in snow and topsoil is not frozen. Topsoil may be placed in a stockpile or distributed on -grade after receiving subgrade soil preparation. Interim stabilization for areas that receive temporary seeding shall be in accordance with subsection 208.04(e)2. Seed shall not be included with interim hydraulic mulch applications. The Contractor shall wait to amend topsoil until the area is ready for permanent seeding with native seed mix shown on the SWMP. The Contractor shall use either the drill, hydraulic, or broadcast method of seeding. Seeding rates (LBS PLS /Acre) shall be increased by 1.5 times for hydraulic and broadcast methods at no additional cost to the Department. Seed shall meet the requirements of 212.02(a) and shall be selected from Table 212-1 based on the application time. Table 212-1 Temporary Seed Mixes Common Name Botanical Name Application Time Seeding Rates LBS PLS / Acre Planting Depth (inches) Oats ; Avena satwa October 1- May>`;1 35 'I -2 Foxtail Millet Setaria italica May 2 - September 30 30 1/2 - 3/4 The Contractor shall restrict motorized vehicle and foot traffic from areas that have received temporary seeding. 212.07 Seeding (Lawn). Lawn grass seeding shall be accomplished in the seeding seasons in accordance with subsection 212.03. (a) Fertilizing and Soil Conditioning. The first application of fertilizer, soil conditioner, or both shall be incorporated into the soil immediately prior to seeding, and shall consist of a soil conditioner, commercial fertilizer, or both as designated in the Contract. Fertilizer called for on the plans shall be worked into the top 4 inches of soil at the rate specified in the Contract. Biological nutrient, culture, or humate based material called for on the plans shall be applied in a uniform application onto the soil service. Organic amendments shall be applied uniformly over the soil surface and incorporated into the top 6 inches of soil. The second application of fertilizer shall consist of a fertilizer having an available nutrient analysis of 20-10-5 applied at the rate of 100 pounds per acre. It shall be uniformly broadcast over the seeded area three weeks 1541 Page October 1, 2021 15 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING after germination or emergence. The area shall then be thoroughly soaked with water to a depth of 1 inch. Fertilizer shall not be applied when the application will damage the new lawn. (b) Seedbed Preparation. In preparation of seeding lawn grass, irregularities in the ground surface, except the saucers for trees and shrubs, shall be removed. Measures shall be taken to prevent the formation of low places and pockets where water will stand. Immediately prior to seeding, the ground surface shall be tilled or hand worked into an even and loose seedbed to a depth of 6 inches, free of clods, sticks, stones, debris, concrete, and asphalt in excess of 2 inches in any dimension, and brought to the desired line and grade. (c) Seeding. Seed shall be drilled with mechanical landscape type drills. Broadcast type seeders or hydraulic seeding will be permitted only on small areas not accessible to drills. Seed shall not be drilled or broadcast during windy weather or when the ground is frozen or untillable. 211.08 Sodding. (a) Fertilizing and Soil Conditioning. Prior to laying sod, the 4 inches of subsoil underlying the sod shall be treated by tilling in fertilizer, compost, or humates as specified on the plans. Amendments shall be applied uniformly over the soil surface and incorporated into the top 6 inches of soil. After laying the sod, it shall be fertilized with a fertilizer having a nutrient analysis of 20-10-5 at the rate of 200 pounds per acre. Fertilizer shall not be applied when the application will damage the sod. (b) Soil Preparation. Prior to sodding, the ground shall be tilled or hand worked into an even and loose sod bed to a depth of 6 inches, and irregularities in the ground surface shall be removed. Sticks, stones, debris, clods, asphalt, concrete, and other material more than 2 inches in any dimension shall be removed. Depressions or variances from a smooth grade shall be corrected. Areas to be sodded shall be smooth before sodding occurs. (c) Sodding. Sod shall be placed by staggering joints with all edges touching. On slopes, the sod shall run approximately parallel to the slope contours. Where the sod abuts a drop inlet, the subgrade shall be adjusted so that the sod shall be 1-'h inches below the top of the inlet. Within one hour after the sod is placed and fertilized it shall be watered. After watering, the sod shall be permitted to dry to the point where it is still wet enough for effective rolling. The Contractor shall roll the sod in two directions with a lawn roller capable of applying between 50 - 80 pounds per square inch of surface pressure to eliminate air pockets. METHOD OF MEASUREMENT 212.09 The quantities of lawn seeding and the three native seeding types will not be measured but shall be the quantities designated in the Contract, except that measurements will be made for revisions requested by the Engineer, or for discrepancies of plus or minus five percent of the total quantity designated in the Contract. The quantity of sod will be by the actual number of square feet, including soil preparation, water, fertilizer, and sod, completed and accepted. Organic Fertilizer, Compost (Mechanically Applied), Humates, Mycorrhizae soil amendments for Seeding (Native) methods drill, hydraulic, and broadcast will be measured by the actual quantity of material applied and accepted. Measurement for acres will be by slope distances. BASIS OF PAYMENT 212.10 The accepted quantities of lawn seeding, native seeding, soil conditioning, and sod will be paid for at the contract unit price for each of the pay items listed below that appear in the bid schedule. Rejected seed that has been stored longer than 30 days shall be re -ordered at the expense of the Contractor. 155 1 Page October 1, 2021 16 REVISION OF SECTION 212 SOIL AMENDMENTS, SEEDING, AND SODDING Payment will be made under Pay Item Pay Unit m9n Orgahlc Fertlllzer "Sti Px `� �� x . _ Compost (Mechanically Applied) Cubic Yard BioticsSod Amendmerits (Hydraulic Applied) =dy�.`w�p r� Pound ; 3 _ Humate Pound yorrhizae:,..' Elemental Sulfur Pound e �^^a`"-^ �Sedln Ve �rlll z �,.o.L...._�.9�( �t!4 ) �,.�,�� .�:� Seeding (Native) Hydraulic Acre Seed ni g (Native} Broadcast ' `' ''� W Acre_ ° T . �? Seeding (Wetland'Dnll Sr Acre eeding.(VUetiand) y r zt'�T`� �- ®r ,. �_ , .. _ _ tiW � �� _ Acr Seeding (Wetland) Broadcast Acre r'^r-r Rr- ,+ems y . r�......-wrs.-r� -��r�-x;-- w -o - ^ r a �....�ry,....,.• ,-n�`�-3r^ Seeding (Lawn) Acre F _ ru a+'^^^,;'„" r"r^r"-+eT:= e Sod �� _<'r = r� 'SquareFoot ' L.....-i..-u. •�...a ., z� b "',. — ,� - .F r._ Wu,._. d..,..,,...,.....o..._...r r. -...,.__...f. — ' �.%.wa..........�. �.:'�� `. Topsoil preparation including incorporating and applying amendments, seedbed preparation, water, and seed mix (LBS PLS /Acre) will not be measured and paid for separately but shall be included in the work Calibrating, adjusting, or readjusting seeding or fertilizing equipment will not be measured and paid for separately but shall be included in the work No additional cost will be accepted for approved substitution of specified seed mix No payment will be made for areas seeded using one of the seeding methods without receiving signed Seed and Amendment Quantities Worksheet from the Engineer Additional seedbed preparation prior to seeding to correct compaction or erosion from storm events will not be measured and paid for separately but shall be included in the work Additional mobilizations as needed to complete seeding within allowed seeding seasons will not be measured and paid for separately but shall be included in the work Removal of all competitive, non-native vegetation prior to spreading amendments will not be measured and paid for separately but shall be included in the work — - - --------- -- — ---------------- 156 I P a g e -------- - Addendum 1 ADDENDUM 1 -REVISED 11/10/2021 hem Dsaa�pton Complete in Place Unit Unit Cost Project Total Per Item Pond 1 Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7(Swale) Description of Change from Previous Version Oty Total Cost Oty Total Cost Oty Total Cost Qty Total Cost Oty Total Cost Qty Total Cost Oty Total Cost Qty Total Cost Conatructlon Clearing & Grubbing - AC 2.3 0.2 0.9 0.5 0.2 0.1 05 Topsoil Stockpile - CY 1535 120 700 80 210 55 370 Topsoil Placement - CY 1535 120 700 80 210 55 370 Unclassified Excavation - CY 5945 110 1945 400 2435 605 200 250 Embankment Material (R -value 20 - CY 2345 150 1425 120 340 80 80 150 Export Fill - CY 2800 10 110 1685 585 170 240 Import Fill (R -value 40) - CY 1350 1350 Remove & Replace Riprap - CY 20 20 Riprap 9" - CY 174 34 132 4 2 2 Riprap (9") (Grouted) - CV 33 10 6 17 Ri ra 12" - CY 109 20 77 12 Saw Asphalt Mat - LF 3098 290 433 725 780 870 Removal of Asphalt Mat - SY 3270 620 215 280 1390 765 HMA(Cr SX) (100) (PG 64-22) - TON 1230 180 65 600 160 225 Aggregate Base Course (Class 6) (A -value 69) YES TON 1220 175 60 615 155 215 Concrete Pan 4' - LF 1410 360 780 90 110 70 Concrete Pan 6' - LF 410 250 160 Concrete Pan 10 - LF 535 535 Concrete Pavement T' - SY 1358 290 288 660 120 Curb and Gutter (Section I-8 - LF 480 220 260 Concrete Retaining Wall 3Max Height) - LF 800 800 PVC SDR51 6" YES LF 16 16 PVC(COO) 12 YES LF 455 180 40 200 35 RCP (Strength Class III 15 YES LF 150 150 RCP (Strength Class III 18" YES LF 165 125 40 Concrete FES 15" W Toe Wall YES EA 1 1 Concrete FES 18 YES EA 1 1 Concrete FES 18 W Toe Wall YES EA 1 1 DIP (315 STRC 18 YES LF 190 190 Small Pipe Headvall YES EA 5 2 1 1 1 Small Pipe Headwall (Double) YES EA 1 1 Outlet Structure YES EA 4 1 1 1 1 Outlet Structure W He ate YES EA 1 1 Type C Inlet 5' (Grate Closed Mesh) YES EA 3 1 2 Type D Inlet 5' (Grate Closed Mesh) YES EA 1 1 Single Combo Inlet YES EA 1 1 Manhole 4' 5' Depth) YES EA 3 1 2 Sand Oil separator YES EA 1 1 Pipe Removal - LF 50 50 Remove & Replace Fence (Chain Link Only) - LF 300 300 Remove & Replace Gate Post - EA 1 1 Remove & Replace Light Pole - EA 1 1 Electric Line Relocation - EA 2 1 1 Irrigation Line Relocation - LF 435 285 150 Remove Electric Utility - EA 1 1 Tree Removal - EA 1 1 Core Drill & Connect to Existing Manhole - EA 1 1 Bollard - EA 15 ___- Mobilization - LS - _ _ Survey (Construction) - LS - - Survey (MS4 As -Built - EA 7 , - Construction Subtotal (Each Pond) __ Force Account - Minor Contract Revision $200,000.00 Erosion Control Seed it - AC ' ee ... '' -___ _ -- _1 ,: Item Description Complete in Place Unit Unit Cost Project Total (Per Item) Pond I Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7 (Swale) Description of Change from Previous Version O Total Cost Oty Total Cost Qty Total Cost Qty Total Cost 0 Total Cost Qty Total Cost Qty Total Cast thy Total Cost Construction Biotic Earth Hydraulic Mulch Soil Retention Blanket Strav/Coconut - - - AC AC SV 1.38 1.17 3068 0.15 0.05 380 0.87 0.47 1655 0.10 0.01 408 0.24 0.13 385 0.07 0.06 240 0.45 0.45 Mirae FW300 Geotextile re ate Bag Erosion Control Lo - - - SY LF LF 573 290 1820 80 50 170 275 10 530 22 110 270 150 10 80 23 110 270 23 500 Orange Crush Eco Bag - EA 15 3 12 Concrete Washout (Pre -Fab) Dewaterin - - EA LS 7 2 1 1 1 1 t 1 1 1 Erosion Control Management Days - EA 91 13 13 13 13 13 13 13 Vehicle Tracking Control (Pre -Fab) - EA 2 1 1 Erosion Control Subtotal (Each Pond) - - -- - _.i._- _ -- - :. - Force Account - Erosion Control 550,000.00 x--.---- -' - ________________________________________________________________________ Foroe Account - Coordinate with Fuel Site Project Manager/Contractor $9,000.00 Force Account -Coordinate with PW Operations Manager for Snow Removal Operations $21,000.00 Estimated Project Total (Construction + Erosion Control + Force Account Items) (All Ponds) $280,000.00 Addendum 2 Pre -Bid Meeting (Bid No. B2100076)-11/10/2021 Pre -Bid Meeting Attendance at this meeting is required in order to be eligible to submit a bid. As a record of your attendance, please email Iholbrook(a�weldgov.com before 4 pm today. Project Summary This bid is for the construction of drainage features that will treat stormwater runoff from the Public Works Facility located at 1111 H Street in Greeley, CO and the Weld County Fuel Site located at 1113 H Street, adjacent to the Public Works Facility. Stormwater from our site will drain to 5 ponds, a grass swale and an evaporation pond through a series of concrete pans, curb and gutter, inlets, manholes, culverts, outlet structures, spillways and riprap rundowns. This bid also includes the installation of an oil/sand separator at the fuel site. Project Engineering and Management The project design was provided by JVA Engineers. Material Owner Acceptance Testing will be arranged by Weld County. Process Control Testing by the contractor is mandatory for this project. Construction Administration and Inspections will be provided by Weld County staff. Bidding Requirements You will email bids to our Purchasing Department. If your bid is too large, it can be uploaded directly to BidNet. See page 4 of the Bid Specs for more information. All bid documents, including the minutes from this meeting, will be on BidNet for you to download. One of the documents is an Excel spreadsheet of the Bid Tabulation. All you need to do is fill out the Unit Cost for each item and the table will automatically calculate your totals. The spreadsheet is separated into 7 Ponds, but we will be looking for the lowest overall bid total. We separated out the ponds to help with understanding the project design. As of now, 2 line items have been added to the table based on questions received. • Pipe Removal • Survey (Construction) A new spreadsheet with these changes will be uploaded to BidNet and titled Addendum 1. We will no longer accept the Bid Tab from the Bid Specs pdf. We will only be accepting the Excel spreadsheet. Please make sure to use the most recent spreadsheet when submitting your bid. Any additional changes to the spreadsheet will be made prior to November 30th, which is the final date for addendums. Dates The deadline for questions is November 24th at 7 am. All addendums will be posted by November 30th at 5 pm. The deadline for submitting bids is December 8th at 10 am. Bid will be read out loud on December 8th at 10:30 am. Meeting information is on page 3 of the Bid Specs. We anticipate finalizing the award between December 13th and 27th with a Notice to Proceed on January 3rd. The project completion date is set for May 31, 2022. Project Details The project is split into 7 drainage areas and stormwater from each area is treated by a separate drainage feature. If you want to follow along with a map, the whole site is shown on Sheet Number 15 in the Construction Plans. Pond 1 Pond 1 is a small pond that will capture runoff from the northern part of the site. Runoff from the vacant lot will discharge into an inlet to an underground culvert into the pond, which discharges into the wetland area to the west. This pond will have a concrete spillway, which will allow for light vehicle traffic and access to the pond for maintenance. There is currently an existing pond there, but it will need to be reworked. Also, there is a new building currently under construction in this area, but it should be complete by this project's start date and should not impact this project. Pond 2 Pond 2 is the largest pond and captures runoff from the majority of the site. It's located next to the western retention pond. Stormwater will travel down new and existing pans to the pond and then discharge into the existing retention pond. This pond will also have a concrete spillway, which will allow for light vehicle traffic and access to the pond for maintenance. This pond is unique because a portion of the western retention pond will need to be filled in. Currently, there is an underwater equalizer pipe that will need to be extended to allow water to flow from the western retention pond to the eastern retention pond. The pipe extension will include the installation of a new manhole to connect the existing HDPE pipe to an RCP extension pipe. Pond 3 Pond 3 is a small pond that captures runoff from the Buildings and Grounds building on the east side of the property. Stormwater will travel down both existing and new concrete pans to inlets and underground culverts into the pond. The pond will discharge underground to the existing HDPE equalizer pipe described in Pond 2. The existing manhole will be the tie-in point for the discharge pipe. In addition to the drainage features, this project also includes paving of the small parking lot located south of the Buildings and Grounds building. Pond 4 Pond 4 will capture and treat runoff from the most southern portion of the Public Works site, which is currently a stockpile area. Stormwater will travel down a concrete pan to the pond and discharge to the south Pond 5 Pond 5 is an evaporation pond designed to capture runoff and potential spills from the Mag Chloride tanks located in the fuel site. Runoff and spills will travel down a concrete pan to the evaporation pond, located in between the salt/sand shed and fuel site. During construction, this area will need to be clear for snow removal operations. Trucks and plows will need to access the salt/sand shed and mag chloride tanks throughout the winter. A force account line item is included in the Bid Tab for coordinating with the Operations Manager to ensure the area is clear when snow is anticipated. Pond 6 Pond 6 will capture and treat runoff from Fuel Site. Stormwater from the fuel site will travel down a concrete curb and gutter and concrete pan to 2 inlets and a sand/oil separator. After the separator, the pre-treated stormwater will flow through 2 ductile iron pipes to the pond and then discharge to the roadside ditch. This is the main fuel site for Weld County and needs to remain operational as much as possible. The fuel site may be undergoing an upgrade during the time of this project. A force account line item is included in the Bid Tab for coordinating with the fuel site contractor to make sure there is no conflict between construction projects. Pond 7 Pond 7 is actually a grass swale that will surround the eastern retention pond. The swale will run parallel to the existing pond on the eastern and southern banks and discharge through a grouted riprap rundown. Project Specials • Make sure to read the Project Specials entirely because they changed last month (October 1, 2021). • Review Section 108.08 - Weld County hours of operation are Monday through Friday from sunup to sundown. If Weld County inspectors are needed due to work being performed on the weekend, Weld County will be credited $100 per hour (four hour minimum) for the inspections. • Work will not be allowed on holidays. For this anticipated schedule, that will include President's Day and Memorial Day. These days have already been accounted for in the schedule. • Additional workdays will not be added due to weather. • Review Section 104.02(a) — Differing Site Conditions. These 11 items are not eligible for a change order. • Review Section 208 - This project will require a Construction Stormwater Permit from the state. Weld County will attend weekly stormwater inspections to ensure the site is in compliance with the permit. If any issues are found, we expect an immediate response from the contractor. If the issue is not resolved within 48 hours, liquidated damages may be assessed. Questions 1. Can bidders visit the site unannounced? Site visits are only allowed during office hours. Please stop by the front desk or call 970-400-3750 just to let us know you are here. 2. Are Davis Bacon wages applicable to this project? No. 3. Is this project tax exempt? Yes. Weld County will provide the awarded contractor with the tax- exempt number. 4. Is material testing a separate line item? No, it should be subsidiary to all items requiring testing per the CDOT Field Materials Manual and per the Bid Specs. 5. Will Weld County take export material? The contractor is responsible for hauling away export material. However, if the County decides to keep the material, a hauling location will be decided at that time. Refer to Section 203 of the Project Specials for more information. 6. Does the prime need to hold professional insurance? Yes. See pages 10-13 of the Bid Specs. 7. Should mobs be included in the Bid Tab? Yes, a mobilization line item has been added to Addendum 1. 8. What is the estimated amount of pipe to be removed in Pond 2? 50 LF of pipe removal was added to Addendum 1. 9. The Bid Tab does not have survey listed as a line item — is that something the County will be providing? Na., the contractor is responsible for all surveying during construction and for the as- builts. See Addendum 1 for survey line items. Addendum 3 Revised Project Special Provisions Revisions to the Project Special Provisions have been made, specifically to Section 601, Structural Concrete and Section 603, Culverts and Sewers. The following pages contain the revised Project Special Provisions with the revisions shown in red. 1 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Section 601 of the Standard Specifications is hereby revised for this project as follows Delete subsections 601.01 thru 601.07 and replace with the following: 601.01 This work consists of furnishing and placing Portland cement concrete in accordance with these specifications and in conformity with the lines, grades and dimensions as shown on the plans or established. This work includes preparing concrete surfaces designated in the Contract and applying an approved colored Structural Concrete Coating to them. The use of AC! 318, Building Code Requirements for Structural Concrete, is not acceptable as it pertains mainly to structural concrete buildings. 601.01(a). Concrete work shall not inhibit access to any areas requiring access by County staff. For this project, this applies to, but is not limited to, the Fuel Site (Pond 6), the mag chloride tanks and salt/sand shed (Pond 5), and the Class 6 stockpile (Pond 4). Access to these areas is critical for County Operations, and actions shall be taken to keep these areas accessible at all times. Upon approval by the County Engineer, PolarSet may be used on a case -by -case basis. 601.01(b). The term "Heavy Duty Concrete" in the drawings is the same as Concrete Pavement (7") in the pay app. 601.02 Classification. The classes of concrete shown in Table 601-1 shall be used when specified in the Contract Table 601-1 CONCRETE TABLE Concrete Class Minimum Required Field Compressive Strength (psi) at 28 days Cementitious Material Content: Minimum or Range (lbs/yd3) Air Content: % Range (Total) titious Material Ratio: Wateratio: Maximum B 4500 N/A 5-x. :045 BZ 4500 610 N/A 0.45 T ' 4500 6 t5 to 650 ; 5-8 0.45, DT 4500 700 5-8 0.44 4500 520 , �, 4-8 0.44 '. G 4500 N/A 5-8 0.45 ,P -' 450(0 , r ;. 520 4-8 0.44 PS (Girders) 8500 Requirements for these mixes are specified in Subsection 618.11 of the Specifications ' (Deck Panels) " 6©t}C S35 5000 615 to 720 5-8 0.42 s4a 5800 615to 760 0.40 S50 7250 615 to 800 5-8 0.38 Shotcrete 4500 N/A 1 0.45 * Prior to pumping for wet process. Class B concrete is an air entrained concrete for general use. Class D, G or P concrete may be substituted for Class B concrete. Additional requirements are: (1) The coarse aggregate shall have a nominal maximum size of 1% inches or smaller. 2 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 (2) Class B Concrete for slope and ditch paving shall be macro -fiber reinforced. Class BZ concrete is concrete for drilled shafts. Additional requirements are: (1) Entrained air is not required unless specified in the Contract. When entrained air is specified in the Contract, the air content shall be 5 to 8 percent. (2) Slump shall be a minimum of 6 inches and a maximum of 9 inches. A minimum of 6 inches slump shall be maintained during the anticipated pour period. The use of retarders and mid -range water reducers is allowed to extend the slump life of the concrete. When the Contractor elects to use self -consolidating concrete (SCC), the slump requirement for Class BZ Concrete does not apply. (3) The coarse aggregate size shall be AASHTO M43 size #8 unless otherwise approved by the Engineer. Class D concrete is a dense medium strength structural concrete. Class G may be substituted for Class D concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, or No. 67 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. Class DT concrete may be used for deck resurfacing and repairs. Additional requirements are: (1) An approved water reducing admixture shall be incorporated into the mix. (2) The concrete mix shall consist of a minimum 50 percent AASHTO M 43 size No. 7 or No. 8 coarse aggregate by weight of total aggregate. Class E concrete is used for fast track pavements needing early strength in order to open a pavement to service soon after placement. Class E concrete shall meet the requirements of Class P concrete. ASTM C150 Type III or ASTM C1157 Type HE cement may be used. Accelerating admixtures may be used. Class G concrete is a low shrinkage macro fiber -reinforced structural concrete. Class G concrete may be substituted for Class B or Class D concrete. Additional requirements are: (1) The concrete shall include a minimum of 4 pounds per cubic yard of Macro Fiber -Reinforcement. (2) Shrinkage reducing admixtures may be incorporated into the mix. (3) The unrestrained shrinkage shall be less than 0.030 percent when tested by CP-L 4103. (4) The permeability of the mix shall not exceed 2,500 coulombs at an age of not more than 56 days when tested in accordance with ASTM C1202. (5) The mix may contain more than 30 percent fly ash by weight of the total cementitious material. (6) The mix may use an optimized gradation with a nominal aggregate size of at least % inch. The mix shall have a nominal maximum aggregate size of % inch if an optimized gradation is not used. (7) An expansive cement additive may be added to an ASTM C150 Type I/11 cement and fly ash to produce an ASTM C845 Type K cement. Approximately 15 to 20 percent by weight of the cementitious content of the concrete will be the expansive cement additive. The proportion of the expansive cement additive will be determined by testing the cementitious material blend in accordance with ASTM C806. The blended material shall have an expansion of 0.04 to 0.10 percent at 7 days when tested in accordance with ASTM C806. When an expansive cement is used the w/cm ratio shall be 0.45 to 0.55, and the expansion of the laboratory trial mix shall be 0.05 to 0.09 percent at 7 days when tested in accordance with ASTM C878. Class P concrete is used in pavements. Additional requirements are: (1) The Required Field Flexural Strength shall be 650 psi when flexural strength acceptance is specified. The laboratory trial mix shall produce a minimum average 28 day flexural strength of 700 psi. (2) The concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 357 or No. 467 coarse aggregate by weight of total aggregate. (3) If all transverse joints are doweled, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 357, or No. 467 coarse aggregate by weight of total aggregate. (4) Class P concrete pavement shall utilize an optimized graded concrete pavement (OGCP) design. 3 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Class PS concrete is used for prestressed concrete members. Requirements for Class PS concrete are specified in subsection 618.11. ASTM C150 Type III and ASTM C1157 Type HE cements may be used. Class S35 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. Class S40 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate. Class S50 concrete is a dense high strength structural concrete. Additional requirements are: (1) An approved water reducing admixture shall be incorporated in the mix. (2) The concrete mix shall be made with AASHTO M 43 sizes No. 57, No. 6, No. 67, No. 7 or No. 8 coarse aggregate. (3) When placed in a bridge deck, the concrete mix shall consist of a minimum 55 percent AASHTO M 43 size No. 67 coarse aggregate by weight of total aggregate. (4) The laboratory trial mix shall not exhibit a crack before 15 days in the cracking tendency test (AASHTO T334). Deviations from the Standard Class B, Class BZ, Class D, Class DT, Class E, and Class P concrete may be made under the following conditions: (1) The minimum cement content may be reduced from that specified in Table 601-1 if lab test results show that the permeability of the mix does not exceed 2,500 Coulombs at an age of not more than 56 days as determined by ASTM C1202. The maximum cement content may be increased from that specified in Table 601-1 if lab test results show that the unrestrained shrinkage is less than 0.050 percent when tested by CP- L 4103. (2) The maximum amount of fly ash substituted for ASTM C150 cement or the maximum pozzolan content when ASTM C595 or C1157 cement is used may exceed the limits in subsection 601.05 if lab test results show that the permeability of the mix does not exceed 2,500 Coulombs at an age of not more than 56 days as determined by ASTM C1202. (3) Except for Class DT, the concrete mix may use an Optimized Gradation (OG). When an OG is used aggregate proportions must be a result of an optimized combined aggregate gradation (CAG) developed by an approved mix design technique such as Shilstone or KU Mix. The amount of aggregate in the CAG passing the % inch sieve and retained on the'/ inch sieve shall be a minimum of 8 percent for the trial mix design. The coarseness factor (CF) and workability factor (WF) must plot within the workability box (ABCD) depicted graphically by the following 4 coordinate points: (i) Point A: (CF,WF) 72, 31 (ii) Point B: (CF,WF) 44.5, 35 (iii) Point C: (CF,WF) 44.5, 43.5 (iv) Point D: (CF,WF) 72, 40 4 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Figure 601-1 Workability Box 50 45 i 0 35 s 8 4 30 -- A70 6 25 20 80 0 50 40 30 Coarseness Factor CF=(S/T)x100 Where: S = Percent Cumulative Retained on 9.5 mm (% inch) Sieve T = Percent Cumulative retained on 2.36 mm (No. 8) Sieve WF is the percent passing the 2.36 mm (No. 8) sieve. Increase workability factor by 2.5 percentage points for every 94 pounds per cubic yard of cementitious material used in excess of 564 pounds per cubic yard in the mix design. Decrease workability factor by 2.5 percentage points for every 94 pounds per cubic yard of cementitious material used below 564 pounds per cubic yard in the mix design. The Contractor shall not adjust the workability factor if the amount of cementitious material is 564 pounds per cubic yard. (4) Aggregate gradings not obtained through an OG may be used if lab test results show that the unrestrained shrinkage is less than 0.050 percent when tested by CP-L 4103. Concrete with any of the above deviations shall be known as Class U Non -Standard Concrete (Class _-NS concrete). For example, Class B -NS. Non-standard concrete may be substituted for the equivalent standard concrete. Non-standard concrete shall be tested, accepted, measured and paid for as standard concrete or the pay item specifying standard concrete. The Contractor may elect to modify Class B, Class BZ, Class D, S35, S40 and S50 concrete to be SCC with the following requirements: (1) SCC shall have a slump flow of 20 to 26 inches when tested in accordance with ASTM C1611 using an inverted slump cone. (2) SCC shall have a maximum blocking assessment of 2.0 inches when tested in accordance with ASTM C1621. (3) SCC shall have a maximum static segregation of 10 percent when tested in accordance with ASTM C1610. (4) For SCC, deviations from the Standard Class B, Class BZ, Class D, S35, S40 and S50 concrete requirements may be made as long as the non-standard concrete requirements are met. ASTM C672 testing is not required for SCC that exceeds the maximum pozzolan substitution in subsection 601.05. 601.03 Materials shall meet the requirements specified in the following subsections: 5 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Fine Aggregate 703.01 Coarse Aggregate 703.02 Portland Cement 701.0, Slag Cement 701.05 Fly Ast1 701.02 Silica Fume Admixture 701.03 Water ``72.f Air Entraining Admixture 711.02 Chemical Admixtures , 711.0 Curing Materials 711.01 Preformed Joint Material 705.01 Reinforcing Steel 709.01 Bearing Materials : 705.00 Epoxy 712.10 Structural °.Concrete Coating °. ` 708.08 High -reactivity Pozzolans 701.04 Pozzolans shall consist of fly ash, silica fume, and high -reactivity pozzolan. Prestressing steel shall meet the requirements of subsection 714.01 except as noted on the plans Calcium Chloride shall not be used in reinforced concrete. Calcium Chloride shall be used in non -reinforced concrete only when specified. Where Fiber -Reinforced Concrete is specified or designated on the plans, the concrete mix shall include approved polyolefin fibers. Unless otherwise specified, a minimum of 3.5 pounds per cubic yard of polyolefin fiber reinforcement shall be evenly distributed into the mix. Mixing shall be as recommended by the manufacturer such that the fibers do not ball up. Polyolefin fibers shall meet the requirements of ASTM C1116 and ASTM D7508. Where Macro Fiber -Reinforced Concrete is specified or designated in the plans, the concrete mix shall include approved macro polyolefin fibers. A minimum of 4.0 pounds per cubic yard of macro polyolefin fiber reinforcement shall be evenly distributed into the mix. If less than 4.0 pounds per cubic yard of macro polyolefin fiber reinforcement is used in the mix, the Contractor shall provide test results showing the mix design has a residual strength of 170 psi as determined in accordance with ASTM C1609. Mixing shall be as recommended by the manufacturer such that the fibers do not ball up. Macro polyolefin fibers shall meet the requirements of ASTM C1116 and ASTM D7508 with the following exceptions: (1) Tensile strength shall be a minimum of 65 ksi (2) Modulus of Elasticity shall be a minimum of 1,000 ksi (3) Cut length shall be 1.5 to 2.2 inches (4) Aspect Ratio shall be 50 to 100 601.04 Sulfate Resistance. The Contractor shall provide protection against sulfate attack on concrete structures and pavements by providing concrete manufactured according to the requirements of Table 601-2. The sulfate exposure for all concrete shall be Class 2 unless otherwise specified on the plans. A higher level of requirements may be used for a lower level of exposure. If the Contractor provides test reports that show another class of exposure exists at a structure location, then the Engineer may accept a concrete mix for that location that meets the corresponding sulfate protection requirements. 6 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Table 601-2 REQUIREMENTS TO PROTECT AGAINST DAMAGE TO CONCRETE BY SULFATE ATTACK FROM EXTERNAL SOURCES OF SULFATE Severity of Water -Soluble Maximum Cementitious Sulfate Sulfate (SO4) Sulfate (SO4) Water to Material Exposure in Dry Soil, (%) in Water, ppm Cementitious Requirement Material Ratio s Class 0 0.00 to 0.10 0 to 150 0.45 Class 0 Class 1 0.11 to 0.20 151 to 1500 0.45 Class 1 Class 2 0.21 to 2.00 1501 to 10,000 0.45 Class 2 Class 3 2.01 or greater 10,001 or 0.40 Class 3 greater Cementitious material requirements are as follows: Class 0 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type I, II or V (2) ASTM C595 Type IL, IP, IP(MS), IP(HS) or IT (3) ASTM C1157 Type GU, MS or HS (4) ASTM C150 Type III cement if it is allowed, as in Class E concrete Class 1 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type I1 or V; Class C fly ash shall not be substituted for cement. (2) ASTM C595 Type IP(MS) or IP(HS). (3) ASTM C1157 Type MS or HS; Class C fly ash shall not be substituted for cement. (4) When ASTM C150 Type III cement is allowed, as in Class E concrete, it shall have no more than 8 percent C3A. Class C fly ash shall not be substituted for cement. (5) ASTM C595 Type IL(MS), IL(HS), IT(MS) or (HS); Class C fly ash shall not be substituted for cement. Class 2 requirements for sulfate resistance shall be one of the following: (1) ASTM C150 Type V with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight (2) ASTM C150 Type II or III with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight. The Type II or III cement shall have no more than 0.040 percent expansion at 14 days when tested according ASTM C452 (3) ASTM C1157 Type HS; Class C fly ash shall not be substituted for cement. (4) ASTM C150 Type II, III, or V plus High -Reactivity Pozzolan where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012 (5) ASTM C1157 Type MS plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012 (6) A blend of Portland cement meeting ASTM C150 Type II or III with a minimum of 20 percent Class F fly ash or slag cement by weight, where the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012. (7) ASTM C595 Type IP(HS), IL(HS) or IT(HS). Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for Type IL cement. Class C fly ash shall not be substituted for cement. (8) ASTM C595 Type IL(MS) or IT(MS) plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where 7 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 the blend has less than 0.05 percent expansion at 6 months or 0.10 percent expansion at 12 months when tested according to ASTM C1012. Class 3 requirements for sulfate resistance shall be one of the following: (1) A blend of Portland cement meeting ASTM C150 Type II, III, or V with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight, where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (2) ASTM C1157 Type HS having less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for cement. Class C fly ash shall not be substituted for cement. (3) ASTM C1157 Type MS or HS plus Class F fly ash, slag cement, or High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (4) ASTM C150 Type II, III, or V plus High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (5) ASTM C595 Type IL(MS) or IT(MS) plus High -Reactivity Pozzolan where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (6) ASTM C595 Type IP(HS), IL(HS) or IT(HS) having less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. Class F fly ash, slag cement, or High -Reactivity Pozzolan may be substituted for Type IL cement. Class C fly ash shall not be substituted for cement. (7) ASTM C595 Type IL with a minimum of a 20 percent substitution of Class F fly ash or slag cement by weight, where the blend has less than 0.10 percent expansion at 18 months when tested according to ASTM C1012. (8) ASTM C150 Type I, II, III or V plus a minimum of 20% Class F fly ash when the R factor of the fly ash is less than 0.75. R factor is determined using the following from the chemical composition of the fly ash. R= CaO-5 Fe2O3 When fly ash or high -reactivity pozzolan is used to enhance sulfate resistance, it shall be used in a proportion greater than or equal to the proportion tested in accordance to ASTM C1012, shall be the same source and it shall have a calcium oxide content no more than 2.0 percent greater than the fly ash or high -reactivity pozzolan tested according to ASTM C1 012. ASTM C1012 test results are acceptable for up to two years from the completion date of the test. 601.05 Proportioning. The Contractor shall submit a Concrete mix design for each class of concrete being placed on the project. Concrete shall not be placed on the project before the Concrete Mix Design Report has been reviewed and approved by the Engineer. The Concrete mix design will be reviewed and approved following the procedures of CP 62. The Concrete mix design will not be approved when the laboratory trial mix data are the results from tests performed more than two years in the past or aggregate data are the results from tests performed more than two years in the past. The concrete mix design shall show the weights and sources of all ingredients including cement, pozzolan, aggregates, water, additives and the water to cementitious material ratio (w/cm). When determining the w/cm, the weight of cementitious material (cm) shall be the sum of the weights of the cement, slag cement, fly ash, silica fume, and high -reactivity pozzolan. The laboratory trial mix data shall include results of the following: (1) AASHTO T 119 (ASTM C143) Slump of Hydraulic Cement Concrete. (2) AASHTO T 121 (ASTM C138) Weight per Cubic Foot, Yield, and Air Content (Gravimetric) of Concrete. (3) AASHTO T 152 (ASTM C231) Air Content of Freshly Mixed Concrete by the Pressure Method. (4) ASTM C39 Compressive Strength of Cylindrical Concrete Specimens shall be performed with at least two specimens at 7 days and three specimens at 28 days. (5) S50 concrete shall include a measurement of cracking by AASHTO T334 Standard Practice for Estimating the Cracking Tendency of Concrete. The sample shall be cured at a temperature of 65 to 75°F and relative humidity not exceeding 40 percent. (6) Class E and P concrete shall include AASHTO T97 (ASTM C78) Flexural Strength of Concrete (Using 8 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Simple Beam with Third -Point Loading). At least two specimens will be tested at 7 days and four specimens at 28 days. The laboratory trial mix shall produce a flexural strength at 28 days of at least 700 psi. (7) Concrete with an optimized gradation shall indicate the gradation proportions that results in a combined aggregate gradation corresponding to compliance within the specified CF and WF box and shall include the following charts used to perform aggregate gradation analysis: (i) Coarseness Factor. (ii) Workability Factor. (iii) 0.45 power. (iv) Combined gradation. Optimized gradations shall be developed by an approved mix design technique such as Tarantula Curve, Shilstone, KU -Mix, etc. (8) SCC concrete shall include ASTM C1611 Standard Test Method for Slump Flow of Self -Consolidating Concrete. Slump flow shall be measured using an inverted slump cone. (9) SCC concrete shall include ASTM C1621 Standard Test Method for Passing Ability of Self -Consolidating Concrete by J -Ring. (10)SCC concrete shall include ASTM C1610 Standard Test Method for Static Segregation of Self - Consolidating Concrete Using Column Technique. Concrete for bridge sidewalk shall be Macro Fiber -Reinforced Class D Concrete Prior to placement of Class E concrete, the Contractor shall provide the Engineer a report of maturity relationships in accordance with CP 69. The Contractor shall provide maturity meters and all necessary wires and connectors. The Contractor shall be responsible for the placement and maintenance of the maturity meters and wires. Placement shall be as directed by the Engineer. Except for Class BZ concrete, the slump of the delivered concrete shall be the slump of the approved concrete mix design plus or minus 2.0 inches. The laboratory trial mix must produce an average compressive strength at least 115 percent of the required field compressive strength specified in Table 601-1. When entrained air is specified in the Contract for Class BZ concrete, the trial mix shall be run with the required air content. The laboratory trial mix shall have a relative yield of 0.99 to 1.02. When Portland Cement Concrete Pavement is paid with a volumetric pay quantity, the relative yield of the concrete produced on the project shall be 0.99 to 1.02. If the produced concrete does not have a relative yield of 0.99 to 1.02 for two consecutive yield determinations, concrete production shall cease and the Contractor shall present a plan to correct the relative yield to the Engineer. Aggregate data shall include the results of the following: (1) AASHTO T 11 (ASTM C117) Materials Finer Than 75 um (No. 200) Sieve in Mineral Aggregates by Washing. (2) AASHTO T 19 (ASTM C29) Unit Weight and Voids in Aggregate. (3) AASHTO T 21 (ASTM C40) Organic Impurities in Fine Aggregate for Concrete. (4) AASHTO T 27 (ASTM C136) Sieve Analysis of Fine and Coarse Aggregates. (5) AASHTO T 84 (ASTM C128) Specific Gravity and Absorption of Fine Aggregate. (6) AASHTO T 85 (ASTM C127) Specific Gravity and Absorption of Coarse Aggregate. (7) AASHTO T 96 (ASTM C131) Resistance to Degradation of Small -Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. 9 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 (8) AASHTO T 104 (ASTM C88) Soundness of Aggregate by Use of Sodium Sulfate or Magnesium Sulfate. (9) CP 37 Plastic Fines in Graded Aggregates and Soils by use of the Sand Equivalent Test. (10)ASTM C535 Resistance to Degradation of Large -Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine. (11)ASTM C1260 Determining the Potential Alkali Reactivity of Aggregates (Accelerated Mortar -Bar Method). When an aggregate source is known to be reactive, ASTM C1567 results may be submitted in lieu of ASTM C1260 results. Any aggregate tested by ASTM C1260 with an expansion of 0.10 percent or more, or that is known to be reactive, shall not be used unless mitigative measures are included in the mix design. Test results from ASTM C1293 Standard Test Method for Determination of Length Change of Concrete Due to Alkali -Silica Reaction may be substituted for ASTM C1260 test results. The ASTM C1293 test shall be run on an individual source of aggregate. The ASTM C1293 test shall not use pozzolan as part of the cementitious material content. Any aggregate source tested by ASTM C1293 with an expansion greater than or equal to 0.04 percent at one year shall not be used unless mitigative measures are included in the mix design. Mitigative measures shall be tested using ASTM C1567 and exhibit an expansion less than 0.10 percent by one of the following methods: (1) Combined Aggregates. The mix design sources of aggregates, cement and mitigative measures shall be tested. The proportions of aggregates, cement and mitigative measures shall be those used in the mix design. (2) Individual Aggregates. Each source and size of individual aggregates shall be tested. The source of cement and mitigative measures shall be those used in the mix design. The highest level of mitigative measures for any individual aggregate shall be the minimum used in the mix design. The Concrete Mix Design Report shall include certified test reports showing that the cement, fly ash, slag cement, high -reactivity pozzolan, and silica fume meet the specification requirements and shall support this statement with actual test results. The certification for silica fume shall state the solids content if the silica fume admixture is furnished as slurry. For all concrete mix designs with ASTM C150 cements, up to a maximum of 20 percent Class C fly ash, 30 percent Class F fly ash, or 30 percent high -reactivity pozzolan by weight of total cementitious material may be substituted for cement. Up to a maximum of 50 percent slag cement by weight of total cementitious material may be substituted for cement. When slag cement and pozzolans are substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. For all concrete mix designs with ASTM C595 Type IL cements, up to a maximum of 20 percent Class C fly ash, 30 percent Class F fly ash, or 30 percent high -reactivity pozzolan by weight of total cementitious material may be substituted for cement. Up to a maximum of 50 percent slag cement by weight of total cementitious material may be substituted for cement. When slag cement and pozzolans are substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. For all concrete mix designs with ASTM C595 Type IP, IP(MS), IP(HS) or IT cements: fly ash or high -reactivity pozzolan shall not be substituted for cement. For all concrete mix designs with ASTM C595 IT cements: slag cement shall not be substituted for cement. For all concrete mix designs with ASTM C595 Type IP, IP(MS), IP(HS) cements, when slag cement is substituted for cement, the total substitution of cement shall not exceed 50 percent by weight of total cementitious material. For all concrete mix designs with ASTM C1157 cements, the total pozzolan content including pozzolan in cement shall not exceed 30 percent by weight of the cementitious material content. Up to a maximum of 30 percent slag cement by weight of total cementitious material may be substituted for cement. 10 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 The Contractor shall submit a new Concrete Mix Design Report meeting the above requirements when a change occurs in the source, type, or proportions of cement, slag cement, fly ash, high -reactivity pozzolan, silica fume, or aggregate. When a change occurs in the source of approved admixtures, the Contractor shall submit a letter stamped by the Concrete Mix Design Engineer approving the changes to the existing mix design. The change shall be approved by the Engineer prior to use. The use of approved accelerating, retarding or hydration stabilizing admixtures to existing mix designs will be permitted at the discretion of the Engineer when documentation includes the following: (1) Manufacturer's recommended dosage of the admixture (2) A letter stamped by the Concrete Mix Design Engineer approving the changes to the existing mix design. Unless otherwise permitted by the Engineer, the product of only one type of hydraulic cement from one source of any one brand shall be used in a concrete mix design. When Fiber -Reinforced Concrete is specified in the Contract, polyolefin fibers may be added to an approved mix design except when Macro Fiber -Reinforced Concrete is specified. If Macro Fiber -Reinforced Concrete is specified a new trial mix will be required. When polyolefin fibers are added to an approved concrete mix design, the Contractor shall submit a letter stamped by the Concrete Mix Design Engineer approving the changes. The stamped letter shall include the following, and the change must be approved by the Engineer prior to use: (1) The mix design number, both the CDOT mix ID number and the suppliers mix ID number. (2) The brand and type of polyolefin fibers. (3) The dosage of polyolefin fibers in pounds per cubic yard. (4) Adjustment to the fine aggregate batch weight. Review and approval of the concrete mix design by the Engineer does not constitute acceptance of the concrete. Acceptance will be based solely on the test results of concrete placed on the project. 601.06 Batching. Measuring and batching of materials shall be done at a batching plant in accordance with AASHTO M 157. The Contractor shall furnish a batch ticket (delivery ticket) with each load for all classes of concrete. Concrete delivered without a batch ticket containing complete information as specified shall be rejected. The Contractor shall collect and complete the batch ticket at the placement site and deliver all batch tickets to the Engineer on a daily basis. The Engineer shall have access to the batch tickets at any time during the placement. The following information shall be provided on each batch ticket: (1) Supplier's name and date. (2) Truck number. (3) Project number and location. (4) Concrete class designation and item number. (5) Cubic yards batched. (6) Time batched. (7) CDOT mix design number. (8) Type, brand, and amount of each admixture. (9) Type, brand, and amount of cement, fly ash, and high -reactivity pozzolan. (10) Weights of fine and coarse aggregates or combined weight when an OG is pre -blended. (11) Moisture of fine and coarse aggregates or combined moisture when an OG is pre -blended. (12) Gallons (Pounds) of batch water (including ice). The Contractor shall add the following information to the batch ticket at the placement site: (13) Gallons of water added by truck operator, the time the water was added, and the quantity of concrete in the truck each time water is added. (14) Number of revolutions of drum at mixing speed (for truck mixed concrete). (15) Discharge time. (16) Location of batch in placement. 11 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 (17) Water to cementitious material ratio. (18) Weight of polyolefin fiber reinforcement. The drum on each truck mixer shall be reversed prior to charging to eliminate any wash water remaining in the mixer. (a) Portland Cement, Fly Ash, High -Reactivity Pozzolan and Silica Fume. These materials may be sacked or bulk. No fraction of a sack shall be used in a batch of concrete unless the material is weighed. All bulk cement shall be weighed on an approved weighing device. The bulk cement weighing hopper shall be sealed and vented to preclude dusting during operation. The discharge chute shall be so arranged that cement will not lodge in it or leak from it. Separate storage and handling equipment shall be provided for the fly ash, silica fume and high -reactivity pozzolan. The fly ash, silica fume, and high -reactivity pozzolan may be weighed in the cement hopper and discharged with the cement. (b) Water. Unless water is to be weighed, the water -measuring equipment shall include an auxiliary tank from which the measuring tank shall be filled. The measuring tank shall be equipped with an outside tap and valve to provide for checking the calibration unless other means are provided for readily and accurately determining the amount of water in the tank. The volume of the auxiliary tank shall be at least equal to that of the measuring tank. In lieu of the volume method specified above, the Contractor will be permitted to use a water metering device that is accurate within the prescribed limits. (c) Aggregates. Aggregates from different sources and of different gradings shall not be stockpiled together. Aggregate shall be handled from stockpiles or other sources to the batching plant in such manner as to secure a uniform grading of the material. Aggregates that have become segregated, or mixed with earth or foreign material, shall not be used. All aggregates produced or handled by hydraulic methods, and washed aggregates, shall be stockpiled or binned for draining at least 12 hours before being batched. Rail shipment requiring more than 12 hours will be accepted as adequate binning only if the car bodies permit free drainage. In case the aggregates contain high or non -uniform moisture content, storage or stockpile period in excess of 12 hours may be required. (d) Bins and Scales. The batching plant may include bins, weighing hoppers, and scales for the fine aggregate and for each size of coarse aggregate. If cement is used in bulk, a bin, hopper, and scale for cement shall be included. A single weighing hopper with an accumulative scale will be permitted, provided a separate scale is used for weighing cement. Scales shall meet the requirements of subsection 109.01. 601.07 Mixing. Concrete may be mixed in stationary mixers, in a central -mix plant, in truck mixers, or in self- contained mobile mixers. Mixing time shall be measured from the time all materials, except water, are in the drum. If the Contractor utilizes process water from a well, it shall be tested at initial operation and every week after to ensure there are no changes that could change the concrete mix. Wells in the Project Area are known to be high in sodium, hydrogen sulfide, and nitrates. If the concentrations of sodium, hydrogen sulfide, and nitrates change, the approved concrete mix could change. Silica fume, when used, shall be added to the mix during initial batching. (a) Mixing General. The concrete shall be deposited in place within 90 minutes after batching when concrete is delivered in truck mixers or agitating trucks, and within 60 minutes when delivered in non -agitating trucks. The 90 minute time limit for mixer or agitating trucks may be extended to 120 minutes if: (1) No water is added after 90 minutes. 12 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 (2) The concrete temperature prior to placement is less than 90 °F The 90 minute time limit for mixer or agitating trucks may be extended to 180 minutes if: (1) No water is added after 90 minutes. (2) The concrete temperature prior to placement is less than 90 °F. (3) The approved concrete mix contains a Type D water reducing and retarding chemical admixture. (b) Stationary Mixing. When mixed in a central mixing plant, the mixing time shall be between 50 and 90 seconds. Four seconds shall be added to the specified mixing time if timing starts the instant the skip reaches its maximum raised position. Mixing time ends when the discharge chute opens. Transfer time in multiple drum mixers is included in mixing time. The contents of an individual mixer drum shall be removed before a succeeding batch is emptied therein. The volume of concrete mixed per batch may exceed the mixer's nominal capacity, as shown on the manufacturer's standard rating plate on the mixer, up to 10 per cent provided concrete test data for strength, segregation, and uniform consistency are satisfactory, and provided spillage of concrete does not occur. The batch shall be so charged into the drum that a portion of the mixing water shall enter in advance of the cement and aggregates. The flow of water shall be uniform and all water shall be in the drum by the end of the first 15 seconds of the mixing period. The throat of the drum shall be kept free of such accumulations as may restrict the free flow of materials into the drum. The timing device on stationary mixers shall be equipped with a bell or other suitable warning device adjusted to give a clearly audible signal each time the lock is released. In case of failure of the timing device, the Contractor will be permitted to operate while it is being repaired, provided the Contractor furnishes an approved timer that accurately measures minutes and seconds. If the timing device is not placed in good working order within 24 hours, further use of the mixer will be prohibited until repairs are made. (c) Truck Mixing. Truck mixed concrete shall conform with one of the following: (1) Concrete mixed entirely in a truck mixer equipped with a mechanical counter shall be partially mixed at the plant or in transit for at least 20 revolutions of the drum at mixing speed. The revolutions of the drum at charging speed shall not be counted as mixing revolutions. The concrete shall be mixed between 50 and 100 revolutions of the mixer drum at mixing speed at the delivery site before discharge of the concrete. (2) Concrete partially mixed in a stationary central mixing plant with mixing brought to completion in a truck mixer (known as shrink mixing) shall be mixed for a minimum of 30 seconds in the stationary mixer. Mixing shall be completed in the truck mixer for at least 20 but not more than 100 revolutions of the mixer drum at mixing speed at the delivery site before discharge of the concrete. (3) Concrete mixed entirely in a stationary mixer and delivered to the job in a truck mixer shall be remixed for a minimum of 20 revolutions of the mixing drum at mixing speed at the job site prior to discharge. When water is added at the delivery site to control the consistency of the concrete as specified in subsection 601.02, the concrete shall be mixed for at least 20 revolutions of the mixer drum at mixing speed for each addition of water before discharge. These revolutions are in addition to the minimum revolutions required for mixing at the delivery site. The added water shall not cause the water/cement ratio to exceed the requirements in subsection 601.02. Water from all sources shall be documented by the ready mix producer on the delivery slip for each load of concrete. The Contractor shall provide a Concrete Truck Mixer Certification. This certification shall show the various pick-up and throw -over configurations and wear marks so that the wear on the blades can be checked. Blades shall be replaced when any part or section is worn 1 inch or more below the original height of the manufacturer's design. A copy of the manufacturer's design, showing the dimensions and arrangement of blades, shall be available to the Engineer at all times. 13 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 The Contractor shall furnish a water -measuring device in good working condition, mounted on each transit mix truck, for measuring the water added to the mix after the truck has left the charging plant. Each measuring device shall be equipped with an easy -to -read gauge. Water shall be measured to the accuracy prescribed in AASHTO M 157. (d) Self -Contained Mobile Mixer. Proportioning and mixing equipment shall be of the self-contained, mobile, continuous mixing type subject to the following: The mixer shall be self-propelled and be capable of carrying sufficient unmixed dry, bulk cement, fine aggregate, coarse aggregate, admixtures and water to produce on the site at least 6 cubic yards of concrete. The mixer shall have one bin for each size aggregate. The mixer shall be capable of positive measurement of cement being introduced into the mix. A recording meter visible at all times and equipped with a ticket printout shall indicate the quantity of total concrete mix. The mixer shall provide positive control of the flow of water into the mixing chamber. Water flow shall be indicated by flow meter and be readily adjustable to provide for minor variations in the aggregate moisture. The mixer shall be capable of being calibrated to automatically proportion and blend all components of indicated composition on a continuous or intermittent basis as required by the finishing operation and shall discharge mixed material through a conventional chute directly in front of the finishing machine. The Contractor shall perform calibration tests according to the equipment manufacturer's recommendations at the beginning of each project, and when there is a change in the mix design proportions or source of materials. The Engineer may require a calibration test or yield check whenever a change in the characteristics of the mixture is observed. The tolerances in proportioning the various ingredients shall be according to subsection 6.8 of AASHTO M 241. Subsection 601.16 shall be revised to include the following: (e) When the ambient temperature is expected to fall below 40 °F during the curing period, the Contractor shall maintain the internal concrete temperature above 50 °F during the curing period and until the concrete has developed a compressive strength of 0.80fc. The Contractor shall provide suitable measures such as straw, additional burlap, ground heaters, or other suitable blanketing materials, and/or housing and artificial heat to maintain the internal concrete temperature above 50 °F. Concrete shall not be placed on forms, girders, or deck panels that have a surface temperature less than 35 °F. Forms, girders, or deck panels where concrete is to be placed shall be free of snow, ice, and frost. Salt shall not be used to thaw ice, snow, or frost. Heating forms, girders, or deck panels prior to concrete placement may be required. When the Contractor chooses to use an enclosure, the Contractor shall enclose the area underneath the deck and heat it so that the temperature of the enclosed air is as close as possible to the temperature of the enclosed air above the concrete. When artificial heating is used to maintain the concrete temperature, adequate ventilation shall be provided to limit exposure to carbon dioxide, and the enclosed air temperature shall not exceed 90 °F. During the curing period, the Contractor shall monitor the air temperature within the enclosure at intervals acceptable to the Engineer. The Contractor shall monitor and maintain the structural integrity of the enclosure. Heating of the enclosure may be stopped after 72 hours if the air surrounding the concrete is greater than 40 °F or the concrete has achieved 0.80fc. For every day that the internal temperature of the concrete is below 50 °F during the curing period, an additional day of curing with a minimum internal concrete temperature of 50 °F will be required unless the concrete has achieved 0.80f'c. After completion of the required curing period, the Contractor shall remove the enclosure in such a manner that the temperature of the concrete during the following 24 hours does not fall by more than 25 °F. 14 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 When the Contractor chooses not to use an enclosure, after the curing period and after the concrete has achieved 0.80f c, the Contractor shall remove the protection in such a manner that the temperature of the concrete during the following 24 hours does not fall by more than 25 °F. For every day that the internal temperature of the concrete is below 50 °F during the curing period, an additional day of curing with a minimum internal concrete temperature of 50 °F will be required unless the concrete has achieved 0.80f c. Internal concrete temperature shall be determined by using thermocouples. Thermocouple wire, connectors, and handheld thermometer shall be supplied by the Contractor. The Contractor shall install the thermocouples at locations designated by the Engineer. Concrete compressive strength shall be determined by maturity meters. The Contractor shall develop maturity relationships for each mix placed during the cold weather conditions in accordance with CP 69. The maturity relationship shall be submitted to the Engineer prior to cold weather concrete placement. The Contractor shall provide the maturity meters and all necessary wires and connectors. The Contractor shall be responsible for the placement, protection, and maintenance of the maturity meters and wires. Locations where the maturity meters are placed shall be protected in the same manner as the rest of the concrete. Heat sources shall not be placed in such a manner as to endanger formwork or expose any area of concrete to drying due to excessive temperatures. If the internal concrete temperature at any location in the bridge deck concrete falls below 32 °F during the first 24 hours of the curing period, the Engineer may direct the Contractor to core the areas in question at the locations indicated by the Engineer. The Engineer will take immediate possession of the cores. The Engineer will submit the cores to a petrographer for examination in accordance with ASTM C856. Concrete damaged by frost, as determined by the petrographer, shall be removed and replaced at the Contractor's expense. All costs associated with coring, transmittal of cores, and petrographic examination shall be borne by the Contractor regardless of the outcome of the petrographic examination. Delete subsection 601.17(c) and replace with the following: (c) Concrete which does not meet the minimum required 28 day strength shall be removed and replaced at the sole discretion of the Engineer. If in the Engineer's sole discretion, the concrete is allowed to be remain, a pay factor reduction will be applied to the concrete as shown in Table 601-3. In subsection 601.17(d), delete Table 601-3 and replace with the following: Table 601-3 Pay Factor Reductions Percent Total Air Strength Deviations from Specified Air (%) Pay Factor Reduction % Below Specified Strength (psi) Pay Factor Reduction 0.0-0.2 2 1-100 10 0.3-0.4 4 101-200 20 0.5-0.6 8 201-300 30 0.7-0.8 16 301-400 40 0.8-1.0 25 401-500 50 Over 1.0 Reject Over 500 Reject NOTE: The pay factor reduction formula is Payment for Item = 100 — Pay Factor Reduction. For example, the payment for a structure below the required strength by 250 psi and is allowed to remain in place by the Engineer would be 70% of the unit price (payment = 100-30). 15 REVISION OF SECTION 601 STRUCTURAL CONCRETE ADDENDUM 3 Subsection 601 17 shall include the following (h) Consolidation Testing The provisions relating to the frequency and amplitude of internal vibration will be considered the minimum requirements and are intended to ensure adequate density in the hardened concrete If a lack of consolidation of the concrete is suspected by the Weld County Project Manager, additional referee testing will be required Referee testing of hardened concrete will be performed by cutting cores from the finished pavement after a minimum of 24 hours for curing Density determinations will be made based on the water content of the core as taken ASTM C 642 will be used for the determination of core density in the saturated -surface dry condition Referee cores will be taken at the minimum rate of one for ,each 500 cubic yards of pavement, or fraction thereof The average density of the cores must be at least 97 percent of the original mix design density, with no cores having a density of less than 96 percent of the original mix design density Failure to meet the above requirements will be considered evidence that the minimum requirements for vibration are inadequate for the job conditions, and additional vibrating units or other means of increasing the effect of vibration will be employed so that the density of the hardened concrete as indicated by further referee ,testing will conform to the above -listed requirements All failing concrete will be removed and replaced END OF SECTION 1 REVISION OF SECTION 603 CULVERTS AND SEWERS ADDENDUM 3 Section 603 of the Standard Specifications is hereby revised for this project as follows: Subsection 603.02 shall be revised to include the following: Reinforced concrete pipe shall be manufactured from concrete that meets the requirements for severity of sulfate exposure specified on the plans. 603.02(a). Culvert work shall not Inhibit access to any areas requiring access by County staff. For this project, this applies to, but is not limited to, the Public Works entrance adjacent to the Fuel Site. This access point is critical for County Operations, and actions shall be taken to keep this access open at all times. This project includes the installation of 2 ductile iron pipes at the access point. The complete pipe installation shall take no longer than 48 hours. Additionally, standby steel plates (MS20 load -rated) shall be located onsite in case of emergency. Steel plates shall be subsidiary to the ductile iron pipe in the pay app. Subsection 603.05, delete the first sentence and replace with the following: Bedding shall be prepared in accordance with Table 603-1. Table 603-1 Pipe Bedding Materials Gradation Size Percent Passing 3/8" 80-100 #4 0-80 #200 0-4 Subsection 603.07(a), delete the second paragraph and replace with the following: Joints for all circular reinforced pipes will be made with confined rubber gaskets conforming to subsection 705.05. Concrete collars will be required at all non-standard joints (not tongue and groove or bell and spigot) and at all connections to existing pipe. END OF SECTION Addendum 4 As -Built Drawings required to be submitted for onsite drainage features. As -Built Drawings are required in order to demonstrate drainage features were constructed as designed and in accordance with Weld County Code. As -Built Drawing Requirements: l ✓ Engineer's and Surveyor's Statements of Substantial Compliance of the Record Drawings is required on the cover sheet only and as follows: • Registered Colorado Professional Engineer: The responsible P,E. for the project shall state: "Based upon review of and reliance on the field survey data and other pertinent data provided by (Name of Firm(s) or Surveyor), on (Date), and a final site investigation conducted on (Date), I hereby state that to the best of my knowledge, information and belief, it is my professional opinion that the facilities shown in these drawings were constructed in substantial compliance with the accepted Drainage Report and/or Construction Drawings and the Engineer's intent. This statement is based only on a review of the field survey data and a final site investigation. " • Registered Colorado Professional Land Surveyor: A registered land surveyor in the State of Colorado shall certify the as -built detention pond volumes at the design depths, outlet structure sizes and elevations, storm sewer sizes and invert elevations at inlets, manholes and discharge locations, representative open channel cross -sections, and dimensions of all the drainage structures. The surveyor shall also state: "A Record Drawing field survey was conducted by (Surveyor), on (Dates). All items noted on these drawings with an "RD" indicate Record Drawing information based on said survey. Unless explicitly marked with an "RD" constructed condition should not be assumed. 1, (Surveyor), hereby state that in my professional opinion the Record Drawing information shown on these plans accurately represents the improvements constructed." ✓ As -Built Drawings for Storm Sewer shall verify the size and elevation of all pipes (including pipe class), inlets, riprap, headwalls, and all other storm drainage infrastructure shown on the accepted plans, including those improvements located in areas outside of public right-of-way. ✓ As -Built Drawings for Open Channels shall verify all drainageway grades and channel shape, horizontal and vertical information for grade control structures and stabilization measures, storm sewer outfalls if not shown on the storm sewer As -Built Drawings and maintenance access. ✓ As -Built Drawings for Detention / Storage Facilities shall verify horizontal and vertical information of all facilities including locations of low flow or trickle channels, outlet structure, emergency overflow spillway, pipe or channel inlets, water surface limits and maintenance access. ✓ As -Built Drawings for Water Quality Facilities shall verify horizontal and vertical information of the facility, water surface limits and maintenance access. Department of Public Works I Development Review 1111 H Street, Greeley, CO 80631 1 Ph: 970-304-6496 1 www.weldgov.com/departments/public_works/development_review Addendum 5 ADDENDUM 5- REVISED 11/30/2021 Item Description Complete In Place Unit Unit Cost Project Total Per Item Pond 1 Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7 (Swale) Description of Change from Previous Version Qty Total Cost Qly Total Cost Qty Total Cost Oty Total Cost Oty Total Cost Qty Total Cost Qty Total Cost aty Total Cost Construction Clearing & Grubbing - AC 2.3 0.2 0.9 0.5 0.2 0 1 05 Topsoil Stockpile - CY 1535 120 700 80 210 55 370 Topsoil Placement - CY 1535 120 700 80 210 55 370 Unclassified Excavation - CY 5945 110 1945 400 2435 605 200 250 Embankment Material (R -value 20) - CY 2345 150 1425 120 340 80 80 150 Export Fill - CY 2800 10 110 1685 585 170 240 Import Fill (R -value 40) - CY 1350 1350 Remove & Replace Riprap - CY 20 20 Riprap (9") - CY 174 34 132 4 2 2 Ri ra 9" Grouted - CY 33 10 6 17 Riprap 12" - CY 109 20 77 12 Saw Asphalt Mat - LF 3098 290 433 725 780 870 Removal of Asphalt Mat - SY 3270 620 215 280 1390 765 HMA (Gr SX) (100) (PG 64-22 - TON 1230 180 65 600 160 225 re ate Base Course (Class 6) (R -value 69 YES TON 1220 175 60 615 155 215 Concrete Pan 4' - LF 1410 360 780 90 110 70 Concrete Pan 6' - LF 410 250 160 Concrete Pan 10 - LF 669 535 134 Quantities were ad usted. Concrete Pavement T' - SY 1359 304 224 711 120 Quantities were adjusted. Concrete Cutoff Wall 5 illwe - LF 368 144 224 Line item was added. Curb and Gutter (Section I -B) - LF 460 220 260 Concrete Retaining Wall 3Max Height) - LF 950 950 _.'amines were adjusted. PVC SOR51 6" YES LF 16 16 PVC C900 12 YES LF 455 180 40 200 35 RCP (Strength Class III 15 YES LF 150 150 RCP (Strength Class III 18" YES LF 165 125 40 Concrete FES 15 W Toe Wall YES EA 1 1 Concrete FES 18 YES EA 1 Concrete FES 18 W Toe Wall YES EA 1 DIP (315 STRC 18" YES LF 190 190 Small Pipe Headwall YES EA 5 2 1 1 1 Small Pipe Headwall (Double) YES EA 1 1 Outlet Structure YES EA 4 1 1 1 1 Outlet Structure W Head ate YES EA 1 1 Type C Inlet 5' (Grate Closed Mesh YES EA 3 1 2 Type D Inlet 5' Grate Closed Mesh) YES EA 1 1 Single Combo Inlet YES EA 1 1 Manhole 4' (5' Depth) YES EA 3 1 2 Sand Oil Separator YES EA 1 1 Pipe Removal - LF 50 50 Remove & Replace Fence (Chain Link Only) - LF 300 300 Remove & Replace Gate Post - EA 1 1 Remove & Replace Light Pole - EA 1 1 Electric Line Relocation - EA 2 1 1 Irrigation Line Relocation - LF 435 285 150 Remove Electric Utility - EA 1 1 Tree Removal - EA 1 1 Core Drill & Connect to Existing Manhole - EA 1 Bollard - EA 15 15 Mobilization - LS - ii ii ii ii ii jil Survey (Construction( Surve MS4 As -Built - - LS EA - 7 1 Construction Subtotal (Each Pond) Force Account - Minor Contract Revision $200,000.00 Erosion Control ADDENDUM 5- REVISED 11/30/2021 Item Description Complete in Plan Unit Unit Cost Project Total Per Item Pond I Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond 7(SwaM) Description of Change from Previous Vern„'. OW Total Cost O Total Cost Qty Total Cost Oty Total Cost Oty Total Cost Qty Total Cost Oty Total Cost Oty Total Cost Construction Seeding - AC 188 0.15 0.87 0.10 0.24 0.07 0.45 Biotic Earth - AC 1.88 015 0.87 0.10 0.24 0.07 0.45 Hydraulic Mulch - AC 1.17 0.05 0.47 0.01 0.13 0.06 0.45 Soil Retention Blanket StraWCoconut - SV 3068 380 1655 408 385 240 Meafi FW300 Geotextile Aregate B - - SY LF 573 290 60 50 275 10 22 110 150 10 23 110 23 Erosion Control L - IF 1820 170 530 270 80 270 500 Orange Crush Eco Ba - EA 15 3 12 Concrete Washout (Pre -Fab) - EA 7 1 1 1 1 1 1 1 Dewaterin - LS 2 1 1 Erosion Control Management Days - EA 91 13 13 13 13 13 13 13 Vehicle Tracking Control (Pre -Fab) - EA 2 1 1 - .. Erosion Control Subtotal (Each Pond) Force ccount-Erosion Control 550,000.00 �`- -- Force Account -Coordinate with Fuel Site Project Manager/Contractor $9,000.00 Force Account -Coordinate with PW Operations Manager for Snow Removal Operations $21,000.00 Estimated Project Total (Construction + Erosion Control + Force Account Items) (All Ponds) $280,000.00 - T. 40776 'A • • • • ONAL �aG WELD COUNTY PUBLIC WORKS CONTACTS OWNER: WELD COUNTY PUBLIC WORKS 1150 0 STREET, ROOM 107 GREELEY, CO 80631 LYNDSAY HOLBROOK (970) 400-3788 LHOLBROOK@ WELDGOV.COM CIVIL ENGINEER: JVA, INC 213 LINDEN STREET, SUITE 200 FORT COLLINS, CO 80524 ERIK NAKOS, P.E. (303) 565-4955 ENAKOS©JVAJVA.COM VICINITY MAP NTS Fie Name MASTER DRAINAGE PLAN GREELEY, CO 100% DESIGN PLANS JVA, Inc. 213 Linden Street, Suite 200 Fort Collins, CO 80524 970.225.9099 www.jvajva.com Boulder • Fort Collins • Winter Park Glenwood Springs • Denver O STREET SCR � S / f 7 i Initials MEC Date Comments Initials Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC KS MASTER M'GE 11/0612020 ISSUE FOR 95% REVIEW MEC 1-OODWG 03/122021 ISSUE FOR 100%REVIEW MEG TOTED Unils: English 04/132021 ISSUE FOR 100% REVIEW MEC LOCATION MAP NTS WELD COUNTY " PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. 80632-0758 PHONE'. (970) 358000 FAX. (B70) 304-6497 DRAWING INDEX GLIB WO POND 184 OUTLET PLAN & PROFILE SHEET TITLE C1.19 WO POND 2 51 0+00 10 3450 PLAN & PROFILE Ci'� WO POND 1 6 2 STA. 3+50 TO 7+50 PLAN 8 00.0 TITLE SHEET PROFILE C0.1 ABBREVIATIONS C1.21 WO POND I STA 7+50 TO 11+50 PLAN 6 PROFILE C0.2 NOTES C1.22 EVAPORATION POND PLAN & PROFILE CO.3 NOTES CI.23 RETENTION POND 5D PLAN 6 PROFILE CO.4 WELD COUNTY NOTES C1.24 WQ POND I INLET PLAN I PROFILE CO.5 DEMOLITION PLAN C1.25 WO PONDS 2 & 3 OUTLET PLAN I PROFILE COS DEMOLITION PLAN CI.26 STORM3A PLAN/PROFILE CO.7 ENGINEERS ESTIMATE C1.27 STORM 3C PLAN & PROFILE 00.6 ENGINEERS ESTIMATE C1.26 WO POND I CROSS SECTIONS C0.9 ENGINEERS ESTIMATE C1.29 WO POND I CROSS SECTIONS CO.10 ENGINEERS ESTIMATE C1.30 WQ POND 2 CROSS SECTIONS CO.11 ENGINEERS ESTIMATE 01.31 WO POND 2 CROSS SECTIONS 00.12 ENGINEERS ESTIMATE C1.32 WO POND 3 CROSS SECTIONS 0013 ENGINEERS ESTIMATE C1.33 WO POND 4 CROSS SECTIONS CEI.0 OVERALL EROSION CONTROL PLAN C1.34 WQ POND 4 CROSS SECTIONS CEI.1 TEMPORARY EROSION CONTROL PLAN C1.35 EVAPORATION POND 5 CROSS SECTIONS CEI.2 TEMPORARY EROSION CONTROL PLAN C1.36 EVAPORATION POND 5 CROSS SECTIONS CE13 PERMANENT EROSION CONTROL PLAN C1.37 WQ POND 6 CROSS SECTIONS CEI.4 PERMANENT EROSION CONTROL PLAN CD1.0 GRADING I DRAINAGE DETAILS CEI.3 SWMP CD1.1 GRADING I DRAINAGE DETAILS CEI.4 SWMP CD1.2 GRADING I DRAINAGE DETAILS GELS SWMP CD1.3 GRADING I DRAINAGE DETAILS CEI.6 EROSION CONTROL DETAILS CD1.4 GRADING 6 DRAINAGE DETAILS CEI.? EROSION CONTROL DETAILS CD1.5 GRADING 6 DRAINAGE DETAILS CEI.8 EROSION CONTROL DETAILS CD1.6 GRADING I DRAINAGE DETAILS CEI.9 EROSION CONTROL DETAILS C3.0 OVERALL HORIZONTAL CONTROL PLAN CE1.10 EROSION CONTROL DETAILS C3.1 DETAILED HORIZONTAL CONTROL PLAN C1.0 OVERALL GRADING I DRAINAGE PLAN C3.2 DETAILED HORIZONTAL CONTROL PLAN CI.1 DETAILED GRADING & DRAINAGE PLAN C3.3 DETAILED HORIZONTAL CONTROL PLAN CI.? DETAILED GRADING & DRAINAGE PLAN C3.4 DETAILED HORIZONTAL CONTROL PLAN CI.3 DETAILED GRADING & DRAINAGE PLAN C3.5 DETAILED HORIZONTAL CONTROL PLAN CIA DETAILED GRADING & DRAINAGE PUN C3.6 DETAILED HORIZONTAL CONTROL PLAN C1.5 DETAILED GRADING 6 DRAINAGE PLAN C3.7 DETAILED HORIZONTAL CONTROL PLAN C7.6 DETAILED GRADING & DRAINAGE PLAN C3.8 DETAILED HORIZONTAL CONTROL PLAN CI.? DETAILED GRADING & DRAINAGE PLAN C3.9 DETAILED HORIZONTAL CONTROL PLAN C1.6 DETAILED GRADING & DRAINAGE PLAN 03.10 DETAILED HORIZONTAL CONTROL PLAN C1.9 DETAILED GRADING & DRAINAGE PLAN C3.11 DETAILED HORIZONTAL CONTROL PLAN CIAO DETAILED GRADING & DRAINAGE PLAN 03.12 DETAILED HORIZONTAL CONTROL PLAN C1.11 DETAILED GRADING I DRAINAGE PLAN C3.13 DETAILED HORIZONTAL CONTROL PUN C1.12 DETAILED GRADING 6 DRAINAGE PLAN C3.14 DETAILED HORIZONTAL CONTROL PUN C1.13 DETAILED GRADING & DRAINAGE PLAN C3.15 DETAILED HORIZONTAL CONTROL PLAN C1.14 DETAILED GRADING & DRAINAGE PLAN C3.16 DETAILED HORIZONTAL CONTROL PLAN 01.15 DETAILED GRADING & DRAINAGE PLAN C3.17 DETAILED HORIZONTAL CONTROL PLAN C1.16 DETAILED GRADING I DRAINAGE PLAN 03.18 DETAILED HORIZONTAL CONTROL PLAN CI.17 WO POND 6 PLAN & PROFILE CO3.0 HORIZONTAL CONTROL DETAILS WELD COUNTY PUBLIC WORKS Project NoJCode MASTER DRAINAGE PLAN No Revisions. TITLE SHEET 3313c Revised Designer. ETN Drawng Number COD DetaMer. MEC Void Sheet Number 1 of 92 Sheet Subset: Sheet Subset AASHTO AMERICAN ASSOC. OF STATE HIGHWAY AND TRANSPORTATION OFFICIALS CTR CENTER GPO GALLONS PER DAY PL PROPERTY UNE TOS TOP OF BANK ABAN ABANDON CY CUBIC YARDS GPM GALLONS PER MINUTE PE POLYETHYLENE TOC TOP OF CONCRETE OR TOP OF CURB AC ASPHALTIC CONCRETE PAVING DEMO DEMOLITION GR GRATE PREFAB PREFABRICATED TOS TOP OF STEP ADDL ADDITIONAL DIA DIAMETER GRTG GRATING PRELIM PRELIMINARY TOT TOTAL ADDM ADDENDUM DIAG DIAGONAL GSP GALVANIZED STEEL PIPE PREP PREPARATION TW TOP OF WALL OR CAP OF WALL p:. N.i DIP DUCTILE IRON PIPE GV H GATE VALVE HIGH PROP PROPOSED TYP TYPICAL ADJ AL ADJUSTABLE ALUMINUM ALT ALTERNATEDOM DOMESTIC HA HE HOSE BIB HORIZONTAL ELLIPTICAL PRV PRESSURE REDUCING VALVE UBC UNIFORM BUILDING CODE 40776 wt ' DN DR DOWN DRAIN HOWL HEADWALL OR PRESSURE RELIEF VALVE AMT AMOUNT UGE UNDERGROUND ELECTRIC W DWG DRAWING HNORL HAND RAIL PSF POUNDS PER SQUARE FOOT UTIL UTILITY APPROX APPROXIMATE 0., ARCH ARCHITECT(UL) tc°ys ,••„ G� OWLE DOWEL EAST HORIZ HORIZONTAL PSI POUNDS PER SQUARE INCH VERT VERTICAL ARV AIR RELIEF VALVE SJONAEN L EA EACH HP HR HIGH POINT HOUR PT POINT OF TANGENCY VC POINT OF VERTICAL CURVATURE ASTM AMERICAN SOCIETY FOR TESTING AND MATERIALS ECC ECCENTRIC HVAC HEATING, VENTILATION, AIR CONDITIONING PV PLUG VALVE VCP VITRIFIED CLAY PIPE ASPH ASPHALT EJ EL EXPANSION JT ELEVATION HWY HIGHWAY PVC POLYVINYL CHLORIDE OR POINT W WIDE OR WIDTH ASS? ASSEMBLY ELB ELBOW HWL HIGH WATER LINE OF VERTICAL CURVATURE W/ WITH ASYM ASYMMETRICAL ELEC ELECTRICAL HYD HYDRANT PVMT PAVEMENT W/O WITHOUT AUTO AUTOMATIC ENGR ENGINEER INCL Io INCLUDED INSIDE DIAMETER QTY R QUANTITY RIGHT WQCE WATER QUALITY CONTROL ELEVATION AVG AVERAGE EOP EDGE OF PAVEMENT IN INLET RAD RADIUS WSEWJSEL WATER SURFACE ELEVATION AWWA AMERICAN WATER WORKS ASSOC. EQ EQUAL INSUL INSULATION RCP REINFORCED CONCRETE PIPE WW WASTEWATER BC BACK OF CURB EQUIP EQUIPMENT INV IRR INVERT IRRIGATION RD RE ROOF DRAIN REFERENCE X SECT CROSS SECTION BFV BUTTERFLY VALVE EQUIV EQUIVALENT JTS KO JOINTS KNOCKOUT RECT RECTANGULAR XFMR ELECTRONIC TRANSFORMER BC FINISHED GRADE ADJACENT TO BOTTOM OF WALL ESMT EASEMENT KPL KICK PLATE REINF REINFORCE (D) (ING) (MENT) YH YARD HYDRANT BLDG BLK BUILDING BLOCK EST ESTIMATE KWY L KEYWAY LEFT OR LITER REQD REQUIRED BM BENCH MARK EVCE END VERTICAL CURVE ELEVATION LSCAPE LANOSCAPE(ING) ROW RIGHT OF WAY EVCS END VERTICAL CURVE STATION LF LP LINEAR FOOT LOW POINT SAN SANITARY LEGEND: BBEST MANAGEMENT PRACTICE EXISTING STORM UNE BS BACKSIGHT EW EACH WAY LT LWL LIGHT LOW WATER LEVEL SD STORM DRAIN PROPOSED STORM LINE BOS BOTTOM OF STEP EXPJT EXPANSION JOINT MAINT MAINTENANCE SECT SECTION EXISTING WATERLINE -• -■ BOT BOTTOM EXIST EXISTING MAN MANUAL SPD STANDARD PROCTOR DENSITY SECTION UNE BSMT BASEMENT FNO FOUNDATION MAIL MATERIAL SPEC SPECIFICATION EXISTING FENCE X BVCE BEGIN VERTICAL CURVE ELEVATION FES FLARED END SECTION MAX MAXIMUM SQ SQ SQUARE SQUARE EXISTING FLOW JNE FINISH FLOOR ME MATCH EXISTING IN SO INCH SQUARE FF PROPOSED FLOWLINE BVCS BEGIN VERTICAL CURVE STATION • FO FINISH GRADE MECH MECHANICAL FT SO FOOT SQUARE PROPERTY LINE BW BOTTOM OF WALL - - - - CB CATCH BASIN FH FIRE HYDRANT MFR MANUFACTURER YD SS YARD SANITARY SEWER EXISTING SANITARY UNE CCW COUNTER CLOCKWISE FL FLOW LINE MH MIN MANHOLE MINIMUM SST STAINLESS STEEL CDOT COLORADO DEPARTMENT OF TRANSPORTATION FN FENCE MISC MISCELLANEOUS STA STATION PROPOSED GROUTED RIPRAP CIP CAST IRON PIPE FOC FACE OF CONCRETE MJ N MECHANICAL JOINT NORTH STD STANDARD RUNDOWN WITH CONCRETE FPM FEET PER MINUTE NA NIC NOT APPLICABLE NOT IN CONTRACT STL STEEL CUTOFF WALLS CJ CONSTRUCTION JOINT CL CENTER LINE OR CHAIN LINK FPS FEET PER SECOND NPT NATIONAL PIPE THREAD STRUCT STRUCTURAL PROPOSED GROUTED RIPRAP CLR CLEAR FT FEET NTS NOT TO SCALE SVC SERVICE EXISTING DITCH BOTTOM ------------------ FIG OC OD ON CENTER OUTSIDE DIAMETER SWMP STORMWATER MANAGEMENT EXISTING RIPRAP CMP FOOTING OR FITTING EXISTING SURFACE MAJOR CORRUGATED METAL PIPE CMU CONCRETE MASONRY UNIT G GA GAS GAUGE OPP OPPOSITE SYM PLAN SYMMETRICAL MINOR CO GAL GALLON OPT OPTIONAL TB THRUST BLOCK CLEANOUT PROPOSED SURFACE MAJOR CONC GALV GALVANIZED PC POINT OF CURVATURE TBC TOP BACK OF CURB MINOR CONCRETE CONST C'CQ GRADE CLEANOUT PCO PRESSURE CLEAN OUT TBM TEMPORARY BENCH MARK ROAD CENTERLINE CONSTRUCTION GIP GALVANIZED IRON PIPE PCR POINT OF CURVE RETURN TEMP TEMPORARY EXISTING FIBEROPTIC UNE CONT CONTINUOUS(ATION) PI POINT OF INTERSECTION TG GND GROUND FINISHED GRADE ADJACENT TO COR CORNER EXISTING ELECTRIC UNE PVI POINT OF VERTICAL INTERSECTION THK TOP OF WALL THICK Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date 08/312020 Initials MEC Date. Comments'. Initials MASTER DRAINAGE PLAN Le! Modified Date. 4/16/2021 Initab. MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revldene. ABBREVIATIONS 3313c Fui Path' e t 11AXV2020 ISSUEFOR 95°A REVIEW MEC 1 P.O. o 8 STREET GREELEY, CO. 806.12-0758 Revised Designer ETN DrevAnp Number C0.1 Diesbi9 Fie NWna' 3313C-00.CVR{NA-OO.DWG 03/122021 ISSUE FOR ID0%REVIEW MEC PHONE: (970) 356-4000 Detader MEC AuloCADVww,: 2020 Scale: ASNOTED IAib: Enpish p4/1320I1 ISSUE FOR 100% REVIEW MEC `S FAX (70)304$487 Void: Sheet Number 2 of 92 r_._:..: Sheet Subset Sheet Subset. GENERAL NO 1. ALL MATERIALS AND WORKMANSHIP SHALL BE IN CONFORMANCE WITH THE LATEST STANDARDS AND SPECIFICATIONS OF THE COUNTY OF WELD, COLORADO DEPARTMENT OF TRANSPORTATION ROAD AND BRIDGE SPECIFICATIONS AND COOT FIELD MATERIALS MANUAL, GREELEY FIRE PROTECTION REQUIREMENTS, AND APPLICABLE STATE AND LOCAL STANDARDS AND SPECIFICATIONS. THE CONTRACTOR SHALL HAVE IN POSSESSION AT THE JOB SITE AT ALL TIMES ONE (1) SIGNED COPY OF APPROVED PLANS, STANDARDS AND SPECIFICATIONS. CONTRACTOR SHALL CONSTRUCT AND MAINTAIN EMERGENCY ACCESS ROUTES TO THE SITE AND STRUCTURE AT ALL TIMES PER THE APPLICABLE GREELEY FIRE PROTECTION DISTRICT REQUIREMENTS. THE CONTRACTOR SHALL OBTAIN WRITTEN APPROVAL FOR ANY VARIANCE TO THE ABOVE DOCUMENTS. NOTIFY ENGINEER OF ANY CONFLICTING STANDARDS OR SPECIFICATIONS. IN THE EVENT OF ANY CONFLICTING STANDARD OR SPECIFICATION, THE MORE STRINGENT OR HIGHER DUALITY STANDARD, DETAIL OR SPECIFICATION SHALL APPLY. 2. THE CONTRACTOR SHALL OBTAIN, AT HIS OWN EXPENSE, ALL APPLICABLE CODES. LICENSES, STANDARD SPECIFICATIONS, PERMITS, BONDS, ETC., WHICH ARE NECESSARY TO PERFORM THE PROPOSED WORK, INCLUDING, BUT NOT LIMITED TO A LOCAL AND STATE GROUNDWATER DISCHARGE AND COLORADO DEPARTMENT OF HEALTH AND ENVIRONMENT (COPHE) STORMWATER DISCHARGE PERMIT ASSOCIATED WITH CONSTRUCTION ACTIVITY. 3. THE CONTRACTOR SHALL BE RESPONSIBLE FOR NOTIFYING THE REQUIRED PARTY AND PROJECT MANAGER AT LEAST 48 HOURS PRIOR TO START OF ANY CONSTRUCTION, PRIOR TO BACKFILLING, AND AS REQUIRED BY JURISDICTIONAL AUTHORITY AND/OR PROJECT SPECIFICATIONS. THE CONTRACTOR SHALL CONTINUE WITH NOTIFICATIONS THROUGHOUT THE PROJECT AS REQUIRED BY THE STANDARDS AND SPECIFICATIONS. METHODS STATEMENTS WLL BE REQUIRED FROM THE CONTRACTOR AS REQUESTED BY THE COUNTY. 4. THE LOCATIONS OF EXISTING UTILITIES ARE SHOWN IN THE APPROXIMATE LOCATION BASED ON INFORMATION BY OTHERS. NOT ALL UTILITIES MAY BE SHOWN. THE CONTRACTOR SHALL DETERMINE THE EXACT SIZE, LOCATION AND TYPE OF ALL EXISTING UTILITIES WHETHER SHOWN OR NOT BEFORE COMMENCING WORK. THE ENGINEER AND/OR COUNTY ASSUMES NO RESPONSIBILITY FOR THE ACCURACY OR COMPLETENESS SHOWN ON PLANS. THE CONTRACTOR SHALL BE FULLY AND SOLELY RESPONSIBLE FOR ANY AND ALL DAMAGES AND COSTS WHICH MIGHT OCCUR BY THE CONTRACTORS FAILURE TO EXACTLY LOCATE AND PRESERVE ANY AND ALL UTILITIES. THE CONTRACTOR SHALL NOTIFY ALL PUBLIC AND PRIVATE UTILITY COMPANIES AND DETERMINE THE LOCATION OF ALL EXISTING UTILITIES PRIOR TO PROCEEDING WITH GRADING AND CONSTRUCTION. ALL WORK PERFORMED IN THE AREA OF UTILITIES SHALL BE PERFORMED AND INSPECTED ACCORDING TO THE REQUIREMENTS OF THE UTILITY OWNER. LIKEWISE, THE CONTRACTOR SHALL BE RESPONSIBLE FOR LOCATING AND MAPPING ANY EXISTING UTILITY (INCLUDING DEPTH) WHICH MAY CONFLICT WITH THE PROPOSED CONSTRUCTION, AND FOR RELOCATING ENCOUNTERED UTILITIES AS DIRECTED BY THE ENGINEER. CONTRACTOR SHALL CONTACT AND RECEIVE APPROVAL FROM WELD COUNTY BEFORE RELOCATING ANY ENCOUNTERED UTILITIES. CONTRACTOR RESPONSIBLE FOR SERVICE CONNECTIONS, AND RELOCATING AND RECONNECTING AFFECTED UTILITIES AS COORDINATED WITH UTILITY OWNER AND/OR ENGINEER, INCLUDING NON -MUNICIPAL UTILITIES (TELEPHONE, GAS, CABLE, ETC., WHICH SHALL BE COORDINATED WITH THE UTILITY OWNER). THE CONTRACTOR SHALL IMMEDIATELY CONTACT ENGINEER UPON DISCOVERY OF A UTILITY DISCREPANCY OR CONFLICT. AT LEAST 48 HOURS PRIOR TO CONSTRUCTION, THE CONTRACTOR SHALL NOTIFY THE UTILITY NOTIFICATION CENTER OF COLORADO (1-800-922-1987, WNWV.UNCC.ORG). SEE SURVEY UTILITY LOCATION INFORMATION BELOW. 5. THE CONTRACTOR SHALL BE SOLELY AND COMPLETELY RESPONSIBLE FOR CONDITIONS AT AND ADJACENT TO THE JOB SITE, INCLUDING SAFETY OF ALL PERSONS AND PROPERTY DURING THE PERFORMANCE OF THE WORK. THE CONTRACTOR SHALL PREPARE A TRAFFIC CONTROL PLAN FOR COUNTY APPROVAL AND PROVIDE ALL LIGHTS, SIGNS, BARRICADES, FENCING, FLAGMEN OR OTHER DEVICES NECESSARY TO PROVIDE FOR PUBLIC SAFETY. THIS REQUIREMENT SHALL APPLY CONTINUOUSLY AND NOT BE LIMITED TO NORMAL WORKING HOURS. THE CONTRACTOR AGREES TO COMPLY WITH THE PROVISIONS OF THE TRAFFIC CONTROL PLAN AND THE LATEST EDITION OF THE "MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES," PART VI, FOR CONSTRUCTION SIGNAGE AND TRAFFIC CONTROL. ALL TEMPORARY AND PERMANENT TRAFFIC SIGNS SHALL COMPLY TO THE MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES (MUTCD) WITH REGARD TO SIGN SHAPE, COLOR, SIZE, LETTERING, ETC. UNLESS OTHERWISE SPECIFIED. IF APPLICABLE, PART NUMBERS ON SIGNAGE DETAILS REFER TO MUTCD SIGN NUMBERS. 6. THE CONTRACTOR SHALL BE RESPONSIBLE FOR REMOVING ANY GROUNDWATER ENCOUNTERED DURING THE CONSTRUCTION OF ANY PORTION OF THIS PROJECT, GROUNDWATER SHALL BE PUMPED, PIPED, REMOVED AND DISPOSED OF IN A MANNER WHICH DOES NOT CAUSE FLOODING OF EXISTING STREETS NOR EROSION ON ABUTTING PROPERTIES IN ORDER TO CONSTRUCT THE IMPROVEMENTS SHOWN ON THESE PLANS. GROUNDWATER TO BE PUMPED SHALL BE TESTED, PERMITTED. AND PUMPED PER THE STATE OF COLORADO AND LOCAL GROUNDWATER DISCHARGING PERMIT REQUIREMENTS. 7. RIM AND GRATE ELEVATIONS SHOWN ON PLANS ARE FINAL. THE CONTRACTOR SHALL ADJUST RIMS AND OTHER IMPROVEMENTS TO MATCH FINAL PAVEMENT AND FINISHED GRADE ELEVATIONS. B. THE EXISTING AND PROPOSED ELEVATIONS OF FLATWORK, SIDEWALKS, CURBS, THRESHOLDS, PAVING, ETC. AS SHOWN HEREON ARE BASED ON EXTRAPOLATION OF FIELD SURVEY DATA, EXISTING CONDITIONS, AND DATA PROVIDED BY OTHERS. AT CRITICAL AREAS AND SITE FEA I URES, CON I MAC I ON SHALL HAVE FORMWORK INSPECTED AND APPROVED BY COUNTY OR ENGINEER PRIOR TO PLACING CONCRETE. MINOR ADJUSTMENTS, AS APPROVED, TO PROPOSED GRADES. INVERTS, ETC, MAY BE REQUIRED TO PREVENT PONDING OR SLOPE NOT IN CONFORMANCE WITH MUNICIPAL STANDARDS. ALL FLATWORK MUST PREVENT PONDING AND PROVIDE POSITIVE DRAINAGE AWAY FROM EXISTING AND PROPOSED BUILDINGS, WALLS, ROOF DRAIN OUTFALLS, ACROSS DRIVES AND WALKS, ETC., TOWARDS THE PROPOSED INTENDED DRAINAGE FEATURES AND CONVEYANCES. 9. FINAL LIMITS OF REQUIRED ASPHALT SAWCUTTING AND PATCHING MAY VARY FROM LIMITS SHOWN ON PLANS. CONTRACTOR TO PROVIDE SAWCUT AND PATCH WORK TO ACHIEVE POSITIVE DRAINAGE AND A SMOOTH TRANSITION TO EXISTING ASPHALT WITHIN SLOPES ACCEPTABLE TO THE PROJECT MANAGER AND WITHIN COUNTY STANDARDS. CONTRACTOR SHALL PROVIDE ADDITIONAL SAWCUTTING AND PATCHING AT UTILITY W ORK. CONNECTION POINTS TO EXISTING PAVEMENT AND FEATURES, ETC. THAT MAY NOT BE DELINEATED ON PLANS. 10.ANY EXISTING MONITORING WELLS, CLEANOUTS, VALVE BOXES. ETC. TO BE PROTECTED AND TO REMAIN IN SERVICE. IF FEATURES EXIST, EXTEND OR LOWER TO FINAL SURFACE WITH LIKE KIND CAP WITH STANDARD CAST ACCESS LID WITH SAME MARKINGS. IN LANDSCAPED AREAS PROVIDE A CONCRETE COLLAR (PER CITY OF GREELEY DETAIL) ATALL EXISTING AND PROPOSED MONITORING WELLS. CLEANOUTS, VALVE BOXES, ETC. 11.OOONTY TO APPROVE ALL CONCRETE FINISHING, JOINT PATTERNS AND COLORING REQUIREMENTS PRIOR TO CONSTRUCTION. SUBMIT JOINT LAYOUT PLAN TO OWNER FOR APPROVAL PRIOR TO CONSTRUCTION. 12.PIPE LENGTHS AND HORIZONTAL CONTROL POINTS SHOWN ARE FROM CENTER OF STRUCTURES, END OF FLARED END SECTIONS, ETC. SEE STRUCTURE DETAILS FOR EXACT HORIZONTAL CONTROL LOCATION. CONTRACTOR IS RESPONSIBLE FOR ADJUSTING ACTUAL PIPE LENGTHS TO ACCOUNT FOR STRUCTURES AND LENGTH OF FLARED END SECTIONS. Qp� REG'sf 40776 `" p�F '••...... :: \" 8s/ONAL 1E* Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creamn Date. 08/312020 Inmate MEC Data Comment: Inibels MASTER DRAINAGE PLAN Last MotlheS Dee. 4/162021 Inibais MEC 09118/2020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Rsviuons NOTES 3313c FW Path: 1111 H. STREET 11/082020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised Designs[ ETN Or Number CO.2 Drwi FN Name: 3313C-00-CVRLNA-00.DWG GREELEY. CO. 80832-0758 0 nB 0]/122021 ISSUE FOR IDO%REVIEW MEC PHONE:(070) 358.4000 Detwier MEC AutoCADVersen: 2020 Scse: AS NOTED Unit: Eri Si 04/132021 ISSUE FOR 100% REVIEW MEG FAX: (970) 3048487 Void Sheet Subset Sheet Subset: Sheet Number 3 of 92 13.ALL SURPLUS MATERIALS, TOOLS, AND TEMPORARY STRUCTURES, FURNISHED BY THE CONTRACTOR, SHALL BE REMOVED FROM THE PROJECT SITE BY THE CONTRACTOR. ALL DEBRIS AND RUBBISH CAUSED BY THE OPERATIONS OF THE CONTRACTOR SHALL BE REMOVED, AND THE AREA OCCUPIED DURING CONSTRUCTION ACTIVITIES SHALL BE RESTORED TO ITS ORIGINAL CONDITION, WITHIN 48 HOURS OF PROJECT COMPLETION, UNLESS OTHERWISE DIRECTED BY THE COUNTY. 14. THE CONTRACTOR IS REQUIRED TO PROVIDE AND MAINTAIN EROSION AND SEDIMENT CONTROL MEASURES IN ACCORDANCE WITH THE LOCAL JURISDICTION, THE STATE OF COLORADO. MILE HIGH FLOOD DISTRICT "URBAN STORM DRAINAGE CRITERIA MANUAL VOLUME 3, THE M -STANDARD PLANS OF THE COLORADO DEPARTMENT OF TRANSPORTATION, AND THE APPROVED EROSION CONTROL PLAN. JURISDICTIONAL AUTHORITY MAY REQUIRE THE CONTRACTOR TO PROVIDE ADDITIONAL EROSION CONTROL MEASURES AT THE CONTRACTOR'S EXPENSE DUE TO UNFORESEEN EROSION PROBLEMS OR IF THE PLANS DO NOT FUNCTION AS INTENDED. THE CONTRACTOR IS RESPONSIBLE FOR PROHIBITING SILT AND DEBRIS LADEN RUNOFF FROM LEAVING THE SITE, AND FOR KEEPING ALL PUBLIC AREAS FREE OF MUD AND DEBRIS. THE CONTRACTOR IS RESPONSIBLE FOR RE-ESTABLISHING FINAL GRADES AND FOR REMOVING ACCUMULATED SEDIMENTATION FROM ALL AREAS INCLUDING SWALES AND DETENTION/WATER QUALITY AREAS. CONTRACTOR SHALL REMOVE TEMPORARY EROSION CONTROL MEASURES AND REPAIR AREAS AS REQUIRED AFTER VEGETATION IS ESTABLISHED AND ACCEPTED BV COUNTY. 15.ADA COMPLIANCE: THE CROSS -SLOPE OF ALL WALKS MUST BE LESS THAN 1:48 (2.0%) PERPENDICULAR TO DIRECTION OF TRAVEL. RUNNING SLOPE OF ACCESSIBLE WALKS MUST BE NOT STEEPER THAN 1:20(5.0%) IN DIRECTION OF TRAVEL. MAXIMUM GRADE OF ACCESSIBLE CURB RAMPS AND RAMPS IS 1:12 (8.3%). CURB RAMPS SHALL PROVIDE A LANDING AT THE TOP AND RAMP RUNS PROVIDE LANDINGS AT THE BOTTOM AND TOP OF EACH RAMP RUN AT A SLOPE NOT TO EXCEED 1:48. RAMPS RUNS EXCEEDING SIX INCHES SHALL INCLUDE HANDRAILS. ACCESSIBLE PARKING SPACES AND ACCESS AISLES SHALL NOT EXCEED 148 IN ALL DIRECTIONS. CONTRACTOR SHALL NOTIFY ENGINEER PRIOR TO PLACEMENT OF FLATWORK OF SITE CONDITIONS OR DISCREPANCIES WHICH PREVENT TYPICAL REQUIRED GRADES FROM BEING ACHIEVED. ALL RAMPS, STAIRS, EDGE PROTECTION, AND RAILINGS SHALL BE CONSTRUCTED IN ACCORDANCE WITH CURRENT ADA STANDARDS. ACCESSIBLE CURB RAMPS SHALL CONFORM TO THE CDOT M -STANDARDS (SEE DETAIL M-608-1, ETC). ACCESSIBLE FEATURE WITHIN THE PUBLIC RIGHTS -OF -WAY SHALL BE CONSTRUCTED TO CONFORM TO THE LOCAL AUTHORITY HAVING JURISDICTION REQUIREMENTS. 16.COUNTY TO KEEP CLEAN EXCAVATED SOIL AND STORE ONSITE. EXPORT FILL LINE ITEM IS FOR STOCKPILING CLEAN MATERIAL ON SITE. 17.LOCATIONS OF CLEANOUTS, LIGHTS, SIGNAGE, JUNCTION BOXES, AND OTHER SIGNIFICANT SITE FEATURES TO BE STAKED FOR PROJECT MANAGER AND OR COUNTY APPROVAL PRIOR TO WORK. CLEANOUTS, JUNCTION BOXES, AND ADJACENT GRADES TO BE RAISED ONE-HALF INCH AT ASPHALTICONCRETE (OR 1" AT LANDSCAPING) TO PROVIDE POSITIVE DRAINAGE AWAY FROM FEATURES. 18. SURVEY INFORMATION: 18.1. BENCHMARK INFORMATION: TOPOGRAPHIC INFORMATION WAS PROVIDED BY WELD COUNTY PUBLIC WORKS. SEE OFFICE SITE SURVEY DATED 06/14/2020. PROJECT BENCHMARK ELEVATION: 4693.63 AT 2.5" ALUM. CAP STAMPED CITY OF GREELEY 66626A. THE DATUM IS PER SURVEY. COORDINATE AND VERIFY ALL VERTICAL AND HORIZONTAL DATA SHOWN IN SURVEY AND REPORT ANY IRREGULARITIES OR DISCREPANCIES TO ENGINEER PRIOR TO CONSTRUCTION. 18.2. BASIS OF BEARINGS: SEE PLANS. 18.3. HORIZONTAL CONTROL INFORMATION. HORIZONTAL CONTROL COORDINATES ARE BASED ON THE REFERENCED SURVEY AND ARE PROVIDED BY THE FOLLOWING POINTS AS SHOWN ON THE PLANS: 3.25" ALUM. CAP ON #6 REBAR STAMPED NET 1 N 406628.29 E 222791.88 ELEV 4654.2 DISK IN CONCRETE STAMPED SC 9 4694 1948 N 4081013.53 E 202984.09 ELEV 4698.6 DISK IN CONCRETE STAMPED JONES 1996 N 419932.49 E 197689.02 ELEV 4772.6 SURVEY PROVIDED BY WELD COUNTY IS NOT BASED ON STATE PLANE COORDINATES. 18.4 SURVEY UTILITY LOCATION INFORMATION PER THE SURVEYOR: SUBSURFACE UTILITIES ARE SHOWN IN APPROXIMATE HORIZONTAL AND VERTICAL LOCATIONS CONSISTENT WITH ASCE 38-02 QUALITY LEVEL "C" (INFORMATION OBTAINED BY SURVEYING AND PLOTTING VISIBLE ABOVE -GROUND UTILITY FEATURES AND BY USING PROFESSIONAL JUDGMENT IN CORRELATING THIS INFORMATION TO QUALITY LEVEL D; INFORMATION DERIVED FROM EXISTING RECORDS OR ORAL RECOLLECTIONS), AND BASED ON FIELD MEASUREMENTS PROVIDED BY THE OWNER AND THE CONTRACTOR. IN AREAS OF UTILITY CROSSINGS, AS REQUIRED BY ASCE 38-02, THE SUBSURFACE UTILITIES ARE DEPICTED AS QUALITY LEVEL "A" (INFORMATION OBTAINED THROUGH THE NONDESTRUCTIVE EXPOSURE OF UNDERGROUND UTILITIES, AND ALSO PROVIDES THE TYPE, SIZE, CONDITION. MATERIAL AND OTHER CHARACTERISTICS OF UNDERGROUND FEATURES.) . POTHOLE INFORMATION IS SHOWN ON SHEETS 45 AND 52 THE INFORMATION OBTAINED IN THIS MANNER IS SURVEYED TO PROJECT CONTROL.). TO THE EXTENT DEEMED NECESSARY FOR THE PROTECTION OF PERSONS AND PROPERTY. POTHOLING OR OTHER PRECISE MAPPING SHOULD BE COMPLETED TO CONFIRM THE EXACT LOCATION OF ANY SUBSURFACE UTILITIES. NOTIFY OWNER AND ENGINEER WITH ALL UTILITY INFORMATION PRIOR TO CONSTRUCTION.VISIT HTTPS;/ANWWW.FHWA.DOTGOV/PROGRAMADMIN SUEINDEX.CFM FOR MORE INFORMATION. 19.THE CONTRACTOR AT THE CONTRACTORS EXPENSE SHALL FURNISH THE OWNER AND PROJECT MANAGER OF RECORD A COMPLETE SET OF CONSTRUCTION RECORD DRAWINGS ("AS•BUILTS") FOR THE CONSTRUCTED IMPROVEMENTS. THE AS -BUILT SET SHALL SHOW SUFFICIENT DIMENSION TIES TO PERMANENT SURFACE FEATURES OR NORTHING/EASTING POINTS FOR ALL BURIED FACILITIES TO ALLOW FOR FUTURE LOCATING. THE AS -BUILT SET SHALL SHOW AS -BUILT CONTOURS AND ELEVATIONS OF ASPHALT AND CONCRETE FLATWORK, FLOWLINES, GRADE BREAKS. STAIRS, CROSS -SLOPES, HIGH AND LOW POINTS, AND ADDITIONAL ELEVATIONS TO DEMONSTRATE IMPROVEMENTS WERE CONSTRUCTED PER PLANS. THE AS -BUILT SET SHALL SHOW ELEVATIONS OF ALL DETENTION/WATER QUALITY FACILITIES, INCLUDING BUT NOT LIMITED TO BERMS, SPILLWAYS, BASIN BOTTOM, PIPE INVERTS, AND CONTROL STRUCTURE FEATURES (AS SURVEYED AND STAMPED BY A CERTIFIED P.L.S.). THE AS -BUILT SET SHALL ALSO INCLUDE ELEVATIONS OF MANHOLES, PIPES, INLETS, GRATES, AND SIZES OF ALL UTILITIES. THE AS -BUILT SET SHALL SHOW ANY AND ALL VARIATIONS FROM THE APPROVED PLAN. MEC Last Modified Date. 4/168021 Initial. MEC I Una& English WELD COUNTY Date: Comments: Initial PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O.8 E:90) 75. GREELEY. CO. 80632-0758 PHONE: (870)3584000 FAX'. (870)3048487 No Revisions 09(188020 ISSUE FOR 60% REVIEW MEC 11/06!1020 ISSUE FOR 95% REVIEW MEC Reviaetl Deu nE 0 03/12/2021 ISSUE FOR 100% REVIEW MEC Detsiler Void 04/1312021 ISSUE FOR 100%REVIEW MEC ewrc WELD COUNTY PUBLIC WOR MASTER DRAINAGE PLAN NOTES ETN Subset T. W:•: T40776 c ISA Fs9/DNAL ••qi J( Project No./Code 3313c Dtarng Number CA.3 Sheet Number 4 of 92 1. ALL WORK SHALL BE DONE IN CONFORMANCE WITH THE COOT "STANDARD SPECIFICATIONS FOR ROAD AND BRIDGE CONSTRUCTION", "M&S STANDARDS" AND "FIELDS MATERIALS MANUAL", UNLESS OTHERWISE NOTED IN THE CONTRACT DOCUMENTS AND WELD COUNTY ENGINEERING CRITERIA MANUAL, IF ANY SPECIFICATION CONFLICTS WITH ANOTHER SPECIFICATION, THE MOST STRINGENT SHALL APPLY AS DETERMINED BY WELD COUNTY. 2. THE UTILITIES SHOWN ON THE PLANS HAVE BEEN PLOTTED FROM THE BEST AVAILABLE INFORMATION. IT IS THE CONTRACTOR'S RESPONSIBILITY TO FIELD VERIFY THE LOCATION OF ALL UTILITIES PRIOR TO CONSTRUCTION. CONTRACTOR SHALL CALL THE UTILITY NOTIFICATION CENTER OF COLORADO AT 1-BOD-922-1987 AT LEAST THREE (3) WORKING DAYS, NOT INCLUDING THE DAY OF NOTICE, PRIOR TO ANY EXCAVATION. THE CONTRACTOR SHALL COOPERATE AND COORDINATE ALL WORK WITH ANY AFFECTED UTILITY COMPANY OR AGENCY. POTHOLES OF UTILITIES SHALL BE RESPONSIBILITY OF THE CONTRACTOR, AND SHALL BE INCLUDED IN THE WORK. CONTRACTOR SHALL COORDINATE ALL UTILITY RELOCATION WORK REQUIRED BY THE PROJECT WITH THE RESPECTIVE UTILITY COMPANIES AND THEIR CONTRACTORS. 3. THE CONTRACTOR IS REQUIRED TO KEEP ALL EXISTING AND NEW DRAINAGE STRUCTURES AND FEATURES FUNCTIONAL AND MAINTAIN ADEQUATE DRAINAGE THROUGH THE CONSTRUCTION AREA AT ALL TIMES DURING THE CONSTRUCTION. 4. ALL REINFORCED CONCRETE PIPE (RCP) SHALL BE A MINIMUM OF STRENGTH CLASS III UNLESS NOTED. OTHERWISE RUBBER GASKETS SHALL BE USED FOR ALL REINFORCED CONCRETE PIPE JOINTS IN ACCORDANCE WTH ASTM C443. 5. FOR FINAL PLAN QUANTITIES OF PAVEMENT MATERIALS, THE FOLLOWING RATES OF APPLICATION WERE USED: TACK COAT DILUTED EMULSIFIED ASPHALT (SLOW SETTING)................................0.10 GAL PER SQ. YD. (DILUTED) HOT MIX ASPHALT...........................................................................................................147 LBS. PER CU. FT. AGGREGATE BASE COURSE..........................................................................................135 LBS. PER CU. FT. DILUTED EMULSIFIED ASPHALT FOR TACK COAT SHALL CONSIST OF 1 PART EMULSIFIED ASPHALT AND 1 PART WATER. THIS WILL NOT BE PAID FOR SEPARATELY AND IS INCLUDED IN THE COST FOR ITEM 403. HOT MIX ASPHALT. 8. THE FOLLOWING SHALL BE FURNISHED WITH EACH ASPHALT PAVER: A SKI TYPE DEVICE AT LEAST 30 FEET IN LENGTH (50 FEET IN LENGTH FOR FINAL LIFT). A SHORT SKI SHOE, AND 1500 FEET OF CONTROL LINE AND STAKES. 7. ANY LAYER OF ASPHALT PAVEMENT THAT IS TO HAVE A SUCCEEDING LAYER PLACED THEREON SHALL BE COMPLETED FULL WIDTH BEFORE THE SUCCEEDING LAYER IS PLACED. A TACK COAT IS REQUIRED PRIOR TO THE PLACEMENT OF EACH LIFT OF HMA. ROADWAY TO BE SWEPT CLEAN PRIOR TO THE APPLICATION OF THE TACK COAT. 8. WHERE PAVEMENT IS TO ABUT EXISTING PAVEMENT, THE EXISTING PAVEMENT SHALL BE REMOVED TO A NEAT VERTICAL LINE, USING A SAW OR OTHER METHOD AS APPROVED BY WELD COUNTY. CONTRACTOR TO MILL A 2• STRIP INTO EXISTING ASPHALT, TO PROVIDE AN OVERLAP IN THE FINAL PAVEMENT LAYER. THERE SHALL BE NO SEPARATE PAYMENT FOR SAW CUTTING AND MILLING. THE CONTRACTOR WILL ALSO BE REQUIRED TO PAINT THE EDGE WITH DILUTED EMULSIFIED ASPHALT (SLOW SETTING) PRIOR TO PAVING OPERATIONS. THE RATE OF APPLICATION SHALL BE AS DETERMINED BY THE ENGINEER AT THE TIME OF APPLICATION. 9. WATER SHALL BE USED AS A DUST PALLIATIVE AS DIRECTED BY THE ENGINEER. ASSUME TVA DAILY WATERINGS FOR THE DURATION OF THE PROJECT. LOCATIONS SHALL BE AS DIRECTED. COST FOR DUST PALLIATIVE SHALL NOT BE MEASURED AND PAID FOR SEPARATELY, BUT SHALL BE CONSIDERED INCIDENTAL TO THE WORK. 1 D. THE CONTRACTOR SHALL LIMIT CONSTRUCTION ACTIVITIES TO THOSE AREAS WITHIN THE LIMITS OF DISTURBANCE AND/OR TOES OF SLOPE AS SHOWN ON THE PLANS AND CROSS SECTIONS. ANY DISTURBANCE BEYOND THESE LIMITS SHALL BE RESTORED TO ORIGINAL CONDITIONS BY THE CONTRACTOR AT HIS/HER OWN EXPENSE. CONSTRUCTION ACTIVITIES, IN ADDITION TO NORMAL CONSTRUCTION PROCEDURES SHALL INCLUDE THE PARKING OF VEHICLE OR EQUIPMENT, DISPOSAL OF LITTER AND ANY OTHER ACTION W-IICH WOULD ALTER EXISTING CONDITIONS. 11. THE CONTRACTOR SHALL MAINTAIN ACCESS TO AFFECTED PROPERTY OWNERS AT ALL TIMES DURING CONSTRUCTION AT NO ADDITIONAL COST TO THE PROJECT. 12. THE CONTRACTOR SHALL MASK ALL SIGNS CONFLICTING WITH CONSTRUCTION SIGNING. THE MASKING OF SIGNS WILL NOT BE MEASURED AND PAID FOR SEPARATELY BUT SHALL BE INCLUDED IN THE COST OF THE WORK. CONCRETE STRUCTURE NOTES: 13. THE CONTRACTOR SHALL BE RESPONSIBLE FOR OBTAINING ALL NECESSARY PERMITS FOR ALL APPLICABLE AGENCIES PRIOR TO 1. SEE SHEETS CO1.0-CD1.5 FOR DETAILED CONCRETE STRUCTURE NOTES. COMMENCEMENT OF CONSTRUCTION. 14. THE CONTRACTOR SHALL BE RESPONSIBLE FOR ALL ASPECTS OF SAFETY INCLUDING, BUT NOT LIMITED TO, EXCAVATION. TRENCHING, SHORING, TRAFFIC CONTROL, AND SECURITY. REFER TO OSHA PUBLICATION 2226, EXCAVATING AND TRENCHING. 1 40776 A 15. THE CONTRACTOR SHALL HAVE, ON SITE AT ALL TIMES, ONE (1) COPY OF THE APPROVED PLANS, ONE (1) COPY OF THE W APPROPRIATE STANDARDS AND SPECIFICATIONS, AND A COPY OF ANY PERMITS AND EXTENSION AGREEMENTS NEEDED FOR THE O�`'•• ?� JOB. ASS/ONAL ECG\ 16. IF DURING THE CONSTRUCTION PROCESS CONDITIONS ARE ENCOUNTERED WHICH COULD INDICATE A SITUATION THAT IS NOT Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No. /Code Crean Date. 08/31(2020 Iniba1s: MEC Date. Comments: Initial: MASTER DRAINAGE PLAN Last Maoihd Dote 4/162021 Initial: MEC 09/182020 ISSUE FOR 80% REVIEW MEC ,. PUBLIC WORKS DEPARTMENT No RevisionsWELD COUNTY NOTES 3313c Fvl Pam: v a 1111 P.O.BOX ET 11/082020 ISSUE FOR B5% REVIEW MEC . BOX 758 Deal nor. ETN Drawn Owl FiN Name 33130-00-CVR-LNA-0O.DWM GREELEY, CO. 80832-0758 Revised B p Number 00.4 n9 03/172021 ISSUE FOR 100%REVIEW MEC PHONE: ff870) 358-4000 Retailer MEC AulaCAD Version: 2020 Scde: AS NOTED Unix. Enptish 04/132021 ISSUE FOR 100%REVIEW MEC FA%: (870)304-04BJ Void. Sheets Sheet Subset: Sheet Number 5 of 92 IDENTIFIED IN THE PLANS OR SPECIFICATIONS, THE CONTRACTOR SHALL CONTACT THE PROJECT MANAGER AND INSPECTOR IMMEDIATELY. 17. A STATE CONSTRUCTION DEWATERING WASTEWATER DISCHARGE PERMIT IS REQUIRED FOR WATER THAT IS DISCHARGED INTO A STREAM, STORM SEWER, CHANNEL, IRRIGATION DITCH OR ANY WATERS OF THE UNITED STATES. THE CONTRACTOR SHALL COMPLY WITH ALL TERMS AND CONDITIONS OF THE COLORADO PERMIT FOR STORM WATER DISCHARGE (CONTACT COLORADO DEPARTMENT OF HEALTH, WATER QUALITY CONTROL DIVISION, (303) 692.3590, THE STORM WATER MANAGEMENT PLAN, AND THE EROSION CONTROL PLAN. TEMPORARY EROSION CONTROL DURING CONSTRUCTION SHALL BE PROVIDED AS SHOWN ON THE EROSION CONTROL PLAN. ALL EROSION CONTROL MEASURES SHALL BE MAINTAINED IN GOOD REPAIR BY THE CONTRACTOR, UNTIL SUCH TIME AS THE ENTIRE DISTURBED AREAS IS STABILIZED WITH HARD SURFACE OR LANDSCAPING. 18. THE CONTRACTOR SHALL SUBMIT A CONSTRUCTION TRAFFIC CONTROL PLAN, IN ACCORDANCE WITH MUTCD AND COOT STANDARD FOR TRAFFIC CONTROL 5-630-1, TO WELD COUNTY FOR APPROVAL. PRIOR TO ANY CONSTRUCTION ACTIVITIES WITHIN, OR AFFECTING THE RIGHT-OF-WAY. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ANY AND ALL TRAFFIC CONTROL DEVICES AS MAY BE REQUIRED BY THE CONSTRUCTION ACTIVITIES. EXPECT 2-3 WEEKS OF REVIEW TIME BY WELD COUNTY FOR APPROVAL. 19. ALL REMOVED ITEMS (EXCEPT CLEAN DIRT SPOILS) BECOME THE PROPERTY OF THE CONTRACTOR TO BE DISPOSED OF OFF- SITE PER FEDERAL, STATE AND LOCAL LAWS UNLESS OTHERWISE NOTED. 20. PROTECT ALL SURVEY MONUMENTS OUTSIDE OF THE CONSTRUCTION LIMITS FROM DAMAGE. IF DAMAGE OCCURS, REPLACEMENT IS AT THE CONTRACTOR'S EXPENSE WITH NO EXTRA COST TO THE PROJECT UNLESS NOTED OTHERWISE. 21. SMOOTHNESS CATEGORY FOR THIS PROJECT IS MRI CATEGORY II. THE CONCRETE PAVEMENT WILL BE ACCEPTED BY THE MASTER DRAINAGE PROJECT SPECIFICATIONS. 22. CONCRETE SHOULD BE DESIGNED FOR LOW SULFATE EXPOSURE IN ACCORDANCE WITH THE PROVISIONS OF THE ACI DESIGN MANUAL, SECTION 318. CHAPTER 4 (REFERENCE GEOTECHNICAL ENGINEERING REPORT, "FUEL ISLAND PAVEMENT DESIGN". PREPARED BY NORTHERN COLORADO GEOTECH, AUG. 18, 2020) 23. SURFACE FINISH OF CONCRETE PAVEMENT IS REQUIRED WITH THE USE OF DOUBLE BURLAP. 24. HMA QUANTITIES ARE NEAR OR LESS THAN 500 TONS PER DESIGN. THEREFORE. SAMPLING AND TESTING FREQUENCIES WILL BE REDUCED PER CDOT 2019 FMM; GUIDELINES FOR TESTING FREQUENCY REDUCTION ITEM 403 - HOT MIX ASPHALT. WELD COUNTY MAY SAMPLE 64-22 S(100) HMA FOR PROJECT LEVEL TESTING. CONTRACTOR WILL PROVIDE A HMA QUALITY PLAN INCLUDING METHOD STATEMENTS FOR PLACEMENT, COMPACTION AND TESTING OF THE HMA FOR THIS PROJECT. EARTHWORK NOTES: 1. TOPSOIL WILL BE TRACKED BY THE CUBIC YARD EXCAVATED, STOCKPILES, AND REDISTRIBUTED. TOPSOIL WILL BE PAID THROUGH THE TOPSOIL SPREAD AND STOCKPILE TOPSOIL LINE ITEMS. PAYMENT WILL BE AS MEASURED IN THE FIELD. UNDER RUNS WILL BE CREDITED TO THE COUNTY AND OVERRUNS SHALL BE PAID AT THE CONTRACT UNIT PRICES. 2. MUCK (UNSUITABLE MATERIAL) ENCOUNTERED SHALL BE EXCAVATED AND FILLED BACK IN USING AGGREGATE BASE COURSE (CLASS 6) WITH A MINIMUM R -VALUE OF 89, MUCK EXCAVATION SHALL BE TRACKED BY THE AMOUNT OF MATERIAL REMOVED, ALL OTHER WORK REQUIRED TO COMPLETE THE BACKFILLING, COMPACTION, AND STABILIZATION SHALL BE SUBSIDIARY TO THE UNSUITABLE MATERIAL LINE ITEM. PAYMENT WILL BE AS MEASURED IN THE FIELD. CONCRETE PAVEMENT NOTES: 1. THE CONTRACTOR SHALL BE RESPONSIBLE FOR PCCP JOINT DESIGN. THE CONTRACTOR'S JOINT DESIGN SHALL INCLUDE TIED INSIDE AND OUTSIDE SHOULDERS. OUTSIDE SHOULDERS WILL INCLUDE TRANSVERSE LOAD TRANSFER DEVICES (DC JOINTS). PCCP JOINT DESIGN WILL COMPLY WITH THE REQUIREMENTS OF, BUT NOT LIMITED TO, THE COOT M & S STANDARD PLANS, AND THE CDOI PAVEMENT DESIGN MANUAL. THE PCCP LONGITUDINAL AND TRANSVERSE JOINT DESIGNS WILL BE COMPATIBLE WITH LANE AND SHOULDER CONFIGURATIONS. THE CONTRACTOR SHALL SUBMIT THE PAVEMENT JOINT DESIGN TO WELD COUNTY FOR ACCEPTANCE ALONG WITH THE DESIGN DOCUMENTS. PCCP CONSTRUCTION WILL NOT COMMENCE UNTIL THE PCCP JOINTING PLAN IS ACCEPTED BY WELD COUNTY. N \ � RE'G 5400-EL=4659.93 ALUM. CAP / �v '�\,\S DEMO LEGEND \\ LIMITS OF SAWCUT \ �'r'•' i' •a• 4O776 N' k'k DEMO SUBSURFACE FEATURE PROTECT EXISTING UTILITY SERVICES, ELECTRIC LINE, DEMO SURFACE FEATURE ELECTRIC BOXES AND GAS VALVES IN PLACE. ADJUST TO o; :D FINISHED GRADE AS NEEDED, CONTRACTOR TO TAKE � - ' pp•. WW NECESSARY PRECAUTIONS TO PROTECT AND MAJNTAIN -- .c •. ; • j. /////////, DEMO BUILDING SERVICES DURING CONSTRUCTION. PROTECT ALL EXISTING UTILITIES AND STRUCTURES ASS/DNA L ECG fffffffffi ABANDON UTILITY DEMO (REMOVE) TREE DEMOLTION OF EXISTING PAVEMENT WITHIN FENCE t - LINE OF FUELING AREA IS NOT PART OF THIS CONTRACT .,� AND WILL BE PERFORMED BY OTHERS, SEE HORIZONTAL DEMOLITION NOTES CONTROL PLAN FOR DEMOLITION ASSOCIATED WITH INSTALLATION OF CURB AND GUTTER AS PART OF THIS CONTRACT.` SAWCUT LINE (TYP) SAWCUT LINE (NP) 1. CONTRACTOR TO FIELD VERIFY ALL EXISTING UNDERGROUND UTILITIES PRIOR TO CONSTRUCTION. REFER TO GENERAL PROTECT EXISTING FENCE. NOTES FOR UTILITY LOCATION AND PROTECTION. PROTECT EXISTING REMOVE CHAIN LINK AND LEAVE POLES 2. ACTUAL LIMITS MAY VARY, CONTRACTOR IS RESPONSIBLE FOR ELECTRIC LINE !1. IN PLACE AS NECESSARY FOR IMPROVEMENTS ADJUSTING LIMITS OF DEMOLITION AND CONSTRUCTION AS FUEL STATION NECESSARY. COORDINATE DEMOLITION REQUIREMENTS, f ,I- DEMOLISH ASPHALT PAVINGAS REQUIRED OMITS OF DEMOUTION. SALVAGE ITEMS, PROTECTION OF ITEMS TO REMAIN, TREES, FENCING, ETC. MATH OWNER, 47-EL4655,33 FY ARCHITECT, ENGINEER. AND RELEVANT CONSTRUCTION AND MEG NAIL Y t, ` 9 PHASING PLANS. PROTECT EXISTING PUMP AND LIGHT POST 3. ADDITIONAL DEMOLITION MAY BE REQUIRED AND IS TO BE RELOCATE EXISTING SHED. COORDINATE WITH OWNER PERFORMED AS PART OF THE BASE CONTRACT. 4. REPLACE EXISTING FLATWORK AT UTIUN TRENCHES AS MAGNESIUM CHLORIDE CONTAINMENT TANKS. REQUIRED, $AND/SALT SHED' PROTECT IN PLACE 5. ALL SAWCUTTING AND PAVEMENT REMOVAL SHOULD BE TO PROTECT EXISTING PIPELINES THE NEAREST JOINT. 6. ALL DRY UTILITY AND ELECTRIC DEMOLIRON OR RELOCATION REMOVE AND REPLACE GATE POST SHOULD BE COORDINATED WITH PROPERTY OWNER, UTILITY RELOCATE EXISTING LIGHT POLE, OWNER. MECHANICAL ENGINEER. AND ARCHITECT PRIOR TO _;..EiiiiIIIIIIIIIIIII-.- COORDINATE WITH OWNER 7, ALL NECESSARY EROSION AND SEDIMENTATION CONTROLS ASP HALT PHALT MUST BE INSTALLED PRIOR TO CONSTRUCTION. PAVING TO EXTENTS 8. CONTRACTOR TO COMPLY WITH ALL REGULATORY SHOWN R\ ` REQUIREMENTS FOR HAZARDOUS MATERIAL REMOVAL AND DISPOSAL. DEMO EXISTING TREE - 9. COORDINATE WITH COUNTY FOR TREE REMOVAL. 10.CONTRACTOR TO MAINTAIN SAFE PEDESTRIAN ACCESS. PROTECT EXISTING \ `:< PROVIDE TEMPORARY ROUTE AND SIGNAGE AS NEEDED. RIPRAP EXCEPT WHERE ` .� �G, I1.CONTRACTOR TO TAKE NECESSARY PRECAUTIONS TO SHOWN ON GRADING PLAN - PROTECT AND MAINTAIN UTILITY SERVICES DURING CONSTRUCTION. 12.CONTRACTOR TO REMOVE AND REPLACE EXISTING IRRIGATION BUILDING 1�` �- t fl EXISTING VALLEY PAN \X AND LANDSCAPING AS NECESSARY FOR CONSTRUCTION. \ 1� TO REIN '.13. STORE CLEAN DIRT SPOILS ON SITE. \•; • ROb 1 ,I f 4&EL=4653.25 BOIL DING -Air MEG NAIL . '" CALL UTILITY NOTIFICATION CENTER OF COLORADO PUBLIC WORKS OFFICE ��___________�BLTL'V`!�<S�FFfCF WELD COUNTY BUSINESS PARK 0 100 200 MATCHLINE SEE SHEET 7 BUSINESS PUBLIC WORKS Feet CALL 2 -BUSINESS DAYS IN ADVANCE ANNEXATION 4-27-1988 °�� BEFORE YOU on. GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND HLJILLMNG H MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 08/312020 Initials: MEC Date. Comments. Initials. MASTER DRAINAGE PLAN List Mid Data. 4/122021 INtiats- MEC D&18/2020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revicioro'. DEMOLITION PLAN 3313c 1111 H. STREET Full Path: ° °DON 62 1110020 ISSUE FOR 95%REVIEW MEC P.O. 80X 758 Danng Fk Name: 3313E-00-DMO-0O.DWG GREELEY, CO. 60632-0758 Rewaed: Designer EN Drawng Number CO.5 03/122021 ISSUE FOR 100%REVIEW MEC PHONE: 970) 356-40DO Detailec MEC AuOCAD Version: 2020 Sale: AS NOTED UNts: Engish 041132021 ISSUE FOR 100% REVIEW MEG FAX' I�70I 304-8487 Void: SReel Number 6 of 92 Sheet Subset. Sheet Subset. MATCHLINE SEE SHEET 6 PUBUC WORKS OFFICE - - - - - - - - - - - - - �UBLTCVJCRIcS�PFR€ WELD COUNTY BUSINESS PARK ° BUSINESS PUBLIC WORKS C. ANNEXATION 4-27-1988 SHED '` DEMOUSH ASPHALT PAVING AS REQUIRED - \ + . - "Tj EXISTING VALLEY PAN -\ 70 REMAIN EXISTING CONCRETE TO ' �-'- A� REMAIN �- BUILDINGS AND GROUNDS El DEMOUSH ASPHALT PAVING AS REQUIRED N WEED SHED \• \ CL Hr DJ1) {`, DFMO FXISTINn STORM DRAIN TO EXTENTS SHOWN r C DEMO EXISTING ELECTRIC POSTS AS REQUIRED DEMOUSH ASPHALT PAVING AS REQUIRED £.• c { C EASTERN RETENTION POND 00 REG �40776 SS�ONAL E� CALL UTILITY NOTIFICATION 111CENTER OF COLORADO 0 100 200 Feet CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG. GRADE. OR EACAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY PUBLIC WORKS Creation Date 08/312020 Initials MEG Date Comments'. Initials WELD COUNTY MASTER DRAINAGE PLAN Project No./Code Last MCEANd Date 4/122021 Initials MEG 09/182020 ISSUE FOR 60% REVIEW MEC .n,a,:_ PUBLIC WORKS DEPARTMENT No Revisions DEMOLITION PLAN 3313c Foil Path. v t COUNTY L A MADE 1111 H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC P.O. Box 758 Designer ETN GREELEY. CO. 80832-0758 Revised Dravnng Number CO.6 Diming File Name. 3313C-00.DMO-0O.OWG 03/122021 ISSUE FOR 100% REVIEW MEC PHONE. (870) 356-4000 Oeteiler. MEC AutoCAD Ver on' 2020 Sole'. AS UniB. English 04/132/�� 021 ISSUE FOR MEC CD...+ FAX. (870)304-6497 Void ShSheet Number 7 of 92 eet Subset Sheet Subset. Refer to Bid Tabulation for Quantities. SUMMARY OF APPROXIMATE QUANTITIES POND 1 BID NUMBER CONT ITEM NUMB CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00000 CLEARING AND GRUBBING AC 0.20 2 207-00210 STOCKPILE TOPSOIL CY 120 3 207-00305 TOPSOIL PLACEMENT CY 120 q 203-00010 UNCLASSIFIE CAVATION (COMPLETE IN PLACE) CY 110 5 REMOVE REPLACE RIPRAP CY 20 6 202-05026 SAWING ASP T MAT (6 IN) LF 290 7 202-00220 REMOVAL OF ASP T MAT SY 620 8 304-06000 AGGREGATE BASE COURSE SS 6) TON 175 9 403-34741 HMA (GR SX) (50) (PG 64-22) TON 160 10 206-00050 EXPORT FILL CY 10 11 ELECTRIC LINE RELOCATION EA 1 12 506-00418 RIPRAP (B INCH) 2 13 506-00209 RIPRAP (9 INCH) (SPILLWAY) CY 32 14 REINFORCED CONCRETE PAN (4') LF 0 15 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLACE) CY 150 16 609-21010 CURB AND GUTTER TYPE 2 (SECTION II -B) LF 220 17 412-00700 CONCRETE PAVEMENT (7 INCH) SY 290 18 603-50012 12" PVC SDR 35 LF 180 19 603-77001 CULV HEADWALL (3-S CULV)(TY 1) EA 20 604-00305 INLET TYPE C (5 FOOT) EA 1 21 604-20000 OUTLET STRUCTURE 1 22 208-00012 EROSION LOG TYPE 1 (9 INCH) LF 170 23 212-00702 BIOTIC SOIL AMENDMENTS (BLACK) LB 750 24 212-00706 SEEDING (NATIVE)(DRILLED) AC 0.15 25 216-00015 SOIL RETENTION BLANKET (E SIOR) SY 380 26 208-00056 STORM DRAIN INLET PROT ON (TYPE III) EA 1 27 420-00102 MIRAFI FW300 TEXTILE SY 80 28 208-00046 PRE-FAB CONC SHOUT STR (TYPE 1) EA 1 29 213-00011 M ING (HYDRAULIC) AC 0.05 30 CURB SOCK EA 5 31 208-00207 OSION CONTROL MANAGEMENT DAY 10 G ING QUANTITIES TRACT ITEM QUANTITY UNITS GRADING - (UNADJUSTED, TAKEN FROM FINISHED GRADE) 60 CY ING - FILL (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 52 CV NET GRADING- CUT (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 8 CV GRADING- CUT (UNADJUSTED) 60 CV GRADING - FILL (ADJUSTED BY 12% FOR COMPACTION) 58 CV NET GRADING - CUT (ADJUSTED) 2 CV MINUS RIPRAP VOLUME 34 CV AL NET GRADING - CUT (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 36 CV L.ontpuler rue lniormauon Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN ENGINEERS ESTIMATE Project No./Code Creation DMe: 08/312020 Initials. MEC Date. Comments. Initials PUBLIC WORKS DEPARTMENT 1111 H. STREET ' ] P.D. BOX 758 GREELEY, CO. 80632-0756 - PHONE (870)358-4000 FAX: ( B70)3W-WB7 No Revisions LatMod'de4 Date: 4/162021 InNak: MEC 09/18/1020 ISSUE FOR 60%REVIEW MEC 3313c RIpan 11/0612020 ISSUE FOR 95% REVIEW MEC Revised Designer EN DrawnNumber CO.? OsaM iq Fie Wme'. 3313C -0 I O CVRNA-0O.OWG 03/122021 ISSUEFOR 100%REVIEW MEC Detailer MEC void. Nestl�O Versgn. 2020 Sale: AS NOTED 18d4: EnSYan 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Number 8 of 92 Sheet Subset Sheet Subset Refer to Bid Tabulation for Quantities. SUMMARY OF APPROXIMATE QUANTITIES POND 2 BID NUMBER CONTRA ITEM NUMBS CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00000 CLEARING AND GRUBBING AC 0.87 2 207-00210 STOCKPILE TOPSOIL CY 700 3 207-00305 TOPSOIL PLACEMENT CV 700 4 202-05026 SA ASPHALT MAT (6 IN) LF 433 5 203-00010 UNCLASSIFIED EXCA ION (COMPLETE IN PLACE) CY 1,945 6 206-00050 IMPO LL CV 1,350 7 506-00208 RIPRAP (6 IN CY 2 8 506-00418 RIPRAP (9 INCH) CY 130 9 506-00210 GROUTED RIPRAP (12 INCH) CY 10 10 REINFORCED CONCRETE PAN (4') LF 780 11 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLACE) CY 1,425 12 202-00220 REMOVAL OF ASPHALT MAT 215 13 412-00700 CONCRETE PAVEMENT (7INCH) SY 288 14 403-34741 HMA (GR SX) (50) (PG 64-22) TON 15 304-06000 AGGREGATE BASE COURSE (CLASS 6) TON 60 16 603-01180 18" REINFORCED CONCRETE PIPE (CLASS III) 12" PVC SDR 35 LF LF 125 40 17 603-50012 18 603-05018 18" REINFORCED CONCRETE END SECTION W/ TW EA 1 19 603-77001 CULV HEADWALL (3-S CULV)(TY 1) EA 20 4STORM MANHOLE EA 1 21 604-20000 OUTLET STRUCTURE 1 22 208-00012 EROSION LOG TYPE 1 (9 INCH) LF 330 23 216-00015 SOIL RETENTION BLANKET (EXCELSIOR SY 1655 24 420-00102 MIRAFI FW300 GEOTEXTILE SY 275 25 208-00046 PRE-FAB CONC WASHOUT ST PE 1) EA 1 26 CURB SOC EA 1 27 212-00702 BIOTIC SOIL AME NTS (BLACK) LB 4323 28 212-00706 SEEDING TIVE)(DRILLED) AC 0.87 29 213-00011 M INC (HYDRAULIC) AC 0.47 30 208-00207 E ON CONTROL MANAGEMENT DAY 10 DING QUANTITIES CONTRACT ITEM QUANTITY UNITS GRADI - CUT (UNADJUSTED, TAKEN FROM FINISHED GRADE) 300 CV GRADING - FILL (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 1650 CV NET GRADING - FILL (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 1350 CV GRADING- CUT (UNADJUSTED) 300 CV GRADING - FILL (ADJUSTED BY 12% FOR COMPACTION) 1848 CV NET GRADING - FILL(ADJUSTED) 1548 CV MINUS RIPRAP VOLUME 142 CV FIN ET GRADING - FILL (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 1406 CV O0 REC/sr 40776 (" W oF''••...... •, : •a� ss/ONAL E� Computer File Information Index of Revisions WELD COUNTY PUBLIC WORKS WELD COUNTY MASTER DRAINAGE PLAN Project No./Code Crestlon Dale: 00131(2020 InNek. MEC Date Commenh. Initlak LtIt Dow. 4/162021 Inioak. MEC 09/18/2020 ISSUE FOR 80% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions ENGINEERS ESTIMATE 3313c Fiji Path a 1111 H. STREET Pt MtAVtS 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised' Decipner ETN Dravin Number C0.8 Dm4 Fic NNne: 3313C-00-CVR{NA-OO.DWG OREELEV,CO. 80632-0758 9 n9 03/122021 ISSUE FOR 100%REVIEW MEC PHONE: `870)356-4000 Deteiler MEC AubCAD Vendn: 2020 Srek: AS NOTED Unite: Enppae 04/132021 ISSUE FOR 100% REVIEW MEC FAX (870) 3048/87 Void. Sheet Subcet SNeet SuheC Sheet Number 9 of 92 Refer to Bid Tabulation for Quantities. SUMMARY OF APPROXIMATE QUANTITIES POND 3 ID NU CONTRACT ITEM NUMBER CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00000 CLEARING AND GRUBBING AC 0.50 2 2 0210 STOCKPILE TOPSOIL CY 80 3 403-3 HMA (GR SX) (50) (PG 64-22) TON 600 4 304-06000 AGGREGATE BASE COURSE (CLASS 6) TON 615 5 207-00305 TOPSOIL PLACEMENT CV 80 6 REMOVE ELECTRIC UTILITY EA 1 7 CORE DRILL EA 1 8 203-00010 UNCLASSIFIED NATION (COMPLETE IN PLACE) CY 400 9 206-00050 E T FILL CV 110 10 506-00208 RIPRAP ( CH) CV 4 11 506-00209 RIPRAP (12 INCH) (S WAY) CV 20 12 REINFORCED CONCRETE P 6') LF 250 13 REINFORCED CONCRETE PAN (4 LF 90 14 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLA CV 120 15 202-00220 REMOVAL OF ASPHALT MAT SY 280 16 202-05026 SAWING ASPHALT MAT (6 IN) L 725 17 603-01180 15" REINFORCED CONCRETE PIPE (CLASS III) LF 150 18 603-50012 12" PVC SDR 35 LF 19 EXISTING MANHOLE CONNECTION (LABOR) EA 20 603-05018 15" REINFORCED CONCRETE END SECTION EA 1 21 603-77001 CULV HEADWALL (3-S CULV)(TY 1) EA 22 4' STORM MANHOLE EA 2 23 604-00305 INLET TYPE C (5 FOOT) E 2 24 604-20000 OUTLET STRUCTURE A 1 25 216-00015 SOIL RETENTION BLANKET (EXCELSIOR) SY 408 26 420-00102 MIRAFI FW300 GEOTEXTILE SY 22 27 CURB SOCK EA 11 28 208-00046 PRE-FAB CONC WASHOUT (TYPE 1) EA 1 29 208-00056 STORM DRAIN INLET P CTION (TYPE III) EA 2 30 212-00702 BIOTIC SOIL A DMENTS (BLACK) LB 500 31 213-00011 MU NC (HYDRAULIC) AC 0.01 32 212-00706 INC (NATIVE)(DRILLED) AC 0.10 33 208-00207 OSION CONTROL MANAGEMENT DAY 10 GRADING QUANTITIES CONTRACT REM QUANTITY UNITS DING- CUT (UNADJUSTED. TAKEN FROM FINISHED GRADE) 260 CV GRADING - FILL (UNADJUSTED. TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 140 CV NET GRADING- CUT (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 120 CV GRADING- CUT (UNADJUSTED) 260 CV GRADING - FILL (ADJUSTED BY 12% FOR COMPACTION) 157 CV NET GRADING - CUT(ADJUSTED) 103 CV MINUS RIPRAP VOLUME 24 CV NET GRADING - CUT (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 127 CV npp0 REG/ • 40776 `• POUFS'' • .... . �� S7ORA L Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project NoJCode Creation Dale: 08/3112020 Intel. MEG Date: comments: Initials. MASTER DRAINAGE PLAN tut Motlfied Date 4/162021 Inioals MEC 0&182020 ISSUE FOR 60% REVIEW MEG PUBLIC WORKS DEPARTMENT No Revisions: ENGINEERS ESTIMATE 3313c Fiji Path ° ' t u r H P.O.H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC . BOX 758 Drwnn Drawing FiM Name: 3313C-00-CVRLNA-0OAWG GREELEV, CO. 80632-0758 Rwi.d: Designer. ETC B Number C0.8 ^g 03112!1021 1690E FOR 100%REVIEW MEC PHONE: (B70) 358.4000 Detwiler MEC AsdoGOVersion: 2020 Sale: AS NOTED Unpa: Eng6h 041132021 ISSUE FOR 100% REVIEW MEC FAX: (870) 900.8487 Void: Sheet Subset Sheet Subset Sheet Number 10 of 92 Refer to Bid Tabulation for Quantities. SUMMARY OF APPROXIMATE QUANTITIES POND 4 BID NUMBER CONTRA TEM NUMBER CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00000 CLEARING AND GRUBBING AC 0.24 2 207-00210 STOCKPILE TOPSOIL CY 210 3 207-00305 TOPSOIL PLACEMENT CV 210 4 203-00010 UNCLASSIFIED AVATION (COMPLETE IN PLACE) CV 2,435 5 506-00208 RIP (6 INCH) CY 2 6 506-00209 RIPRAP (12 IN SPILLWAY) CV 77 7 506-00210 GROUTED RIPRAP NCH) CY fi 8 206-00050 EXPORT FILL CY 1,665 9 REINFORCED CONCRETE PAN (1 LF 535 10 REINFORCED CONCRETE PAN (4') LF 110 11 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLACE) CY 340 12 603-50012 12" PVC SDR 35 35 13 603-77001 CULV HEADWALL (3-S CULV)(TY 1) EA 1 14 604-20000 OUTLET STRUCTURE EA 15 208-00012 EROSION LOG TYPE 1 (9 INCH) LF 80 16 216-00015 SOIL RETENTION BLANKET (EXCELSIOR) SY 385 17 420-00102 MIRAFI FW300 GEOTEXTILE SY 150 18 CURB SOCK EA 19 208-00046 PRE-FAB CONIC WASHOUT STR (TYPE 1) EA 1 20 212-00702 BIOTICSOILAMENDMENTS(BLACK) LB 1,187 21 212-00706 SEEDING (NATIVE)(DRILLED) 0.24 22 213-00011 MULCHING (HYDRAULIC) AC 0.13 23 208-00207 EROSION CONTROL MANAGEMENT DAY 10 G G QUANTITIES C RACT ITEM QUANTITY UNITS GRADING - C NADJUSTED. TAKEN FROM FINISHED GRADE) 2060 CV GR G - FILL (UNADJUSTED, TAKEN FROM FINISHED RARE, INCLUDES RIPRAP AND PAVING VOLUMES) 375 CV NET GRADING - CUT (UNADJUSTED, TAKEN FROM FINISHED GRADE, INCLUDES RIPRAP AND PAVING VOLUMES) 1685 CY GRADING- CUT (UNADJUSTED) 2060 CV GRADING- FILL(ADJUSTED BY 12% FOR COMPACTION) 420 CV NET GRADING - CUT (ADJUSTED) 1640 CV MINUS RIPRAP VOLUME 85 CV FINAL NET GRADING - CUT (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 1725 CV • ...... T • 40776 ASS/ONAL E Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dee: 08/312020 Initials. MEC Date. Comments. Initials. MASTER DRAINAGE PLAN Lot Modrd DMt. 41160021 Inioae. MEC 09/1812020 ISSUE FOR 60% REVIEW MEC n... - PUBLIC WORKS DEPARTMENT No Revisions ENGINEERS ESTIMATE 3313c FA Pam: ° ` 1111 H. STREET Pt 11MQ020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Designer ETN Dramen Number C0.10 Dmvi FYe Name: 3313C-00.CVR-LNA-OO.DWG GREELEY, CO. 80632-0758 Revised 9 p nB 03/122021 ISSUE FOR 100% REVIEW MEC PHONE. (870) 356-4000 Detader MEC AoADCADVono,: 2020 Scale'. ASN0TED Unle: Er ghh 04/1312021 ISSUE FOR 100% REVIEW MEG FAX: (070)3048497 Vold Sheet Subset. Sheet Subset: Sheet Number 11 of 92 Refer to Bid Tabulation for Quantities. SU RY OF APPROXIMATE QUANTITIES POND 5 BID NUMBER CONTRACT ITEM NUMBER CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 203-00010 UNCLASSIFIED EXC TION (COMPLETE IN PLACE) CV 605 2 202-05026 SAWING ASP T MAT (6 IN) LF 780 3 206-00050 EXPORT F CY 585 4 412-00700 CONCRETE PAVEMENT ( H) SY 660 5 CONCRETE RETAINING WALL 3' MAX GHT LF 800 6 202-00220 REMOVAL OF ASPHALT MAT SY 1390 7 REINFORCED CONCRETE PAN (6') LF 160 8 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLACE) 80 9 304-06000 AGGREGATE BASE COURSE (CLASS 6) TON 155 10 403-34741 HMA (GR SX) (50) (PG 64-22) TON 0 11 IRRIGATION LINE RELOCATION LF 28 12 622-00270 BOLLARD EA 15 13 208-00046 PRE-FAB CONC WASHOUT SIR (TYPE 1) EA 1 14 208-00207 EROSION CONTROL MANAGEMENT DAY ip GRADING QUANTITIES CONTRACT ITEM QUANTITY UNITS GRADING - CUT (UNADJUSTED, TAKEN M FINISHED GRADE) 595 CV GRADING - FILL (UNADJUST AKEN FROM FINISHED GRADE. INCLUDES RIP AND PAVING VOLUMES) 10 CV NET GRADING - (UNADJUSTED, TAKEN FROM FINISHED E, INCLUDES RIPRAP AND PAVING VOLUMES) 565 CV GRADING-CUT(UNADJUSTED) 595 CV ADING - FILL. (ADJUSTED BY 12% FOR COMPACTION) 11 CV NET GRADING - CUT(ADJUSTED) 584 CY FINAL NET GRADING - FILL (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 584 CV oO REG/ti'P • 40776 `/' • 'ONAL E Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project NoJCode Creamn Dete: 06/312020 Initial. MEC Date Comments. Initials MASTER DRAINAGE PLAN Last Motlifed Date 4/16(2021 Initial. MEC Q9/1/2O20 ISSUE FOR 60% REVIEW MEC v-.� '� PUBLIC WORKS DEPARTMENT No Revisions ENGINEERS ESTIMATE 3313c v t u cc 1111 H. STREET FuN Path.PLMAYnS 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised Designer. ETN Dres'ing Fk Neme. 3313C-DO-CVR-LNA-OO.DWG GREELEV, CO. 80832-0758 Dravnng Number CO.11 0 317 2 2 0 21 ISSUE FOR 100%REVIEW MEC PHONE. 1970) 358-4000 Detailer'. MEC AutoCADVenim 2020 Sul: ASNOTED Units: English 0//132021 ISSUE FOR 100% REVIEW MEC FAX (870)304-0497 Void Shoat Number 12 of 92 Sheet Subset. Sheet Subset Refer to Bid Tabulation for Quantities. SUMMARY OF APPROXIMATE QUANTITIES POND 6 BID NUMBER TRACT ITEM BER CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00 CLEARING AND GRUBBING AC 0.07 2 203-00010 NCLASSIFIED EXCAVATION (COMPLETE IN PLACE) CY 200 3 202-05026 SAWING ASPHALT MAT (6 IN) LF 870 4 202-00220 REMOVAL OF ASPHALT MAT SY 765 5 206-00050 EXPORT FILL CY 170 6 EE REMOVAL EA 1 7 REMOVE AN SET GATE POST EA 1 B REMOVE AND REP LIGHT POLE EA 1 9 210-01000 RESET FENC LF 300 10 207-00210 STOCKPILE TOPSOIL CY 55 11 506-00209 RIPRAP (12 INCH) (SPILLWAY CY 12 12 506-00208 RIPRAP (6 INCH) CV 2 13 REINFORCED CONCRETE PAN (41) LF 70 14 207-00305 TOPSOIL PLACEMENT C 55 15 212-00702 BIOTIC SOIL AMENDMENTS (BLACK) LB 350 16 203-00060 EMBANKMENT MATERIAL (COMPLETE IN PLACE) CY 17 IRRIGATION UTILITY LOWERING EA 1 18 ELECTRIC UTILITY LOWERING EA 1 19 609-21010 CURB AND GUTTER TYPE 2 (SECTION II -B) LF 260 20 SAND OIL INTERCEPTOR 500 GALLON EA 1 21 403-34741 HMA (GR SX) (50) (PG 64-22) TON 22 304-06000 AGGREGATE BASE COURSE (CLASS 6) TON 215 23 412-00700 CONCRETE PAVEMENT (7 INCH) S 120 24 18" DUCTILE IRON PIPE (315 STRC STRENGTH) LF 190 25 609-21010 18" REINFORCED CONCRETE PIPE (CLASS It LF 40 26 603-50012 6" PVC S0R 35 LF 16 27 403-34741 DUAL CULV HEADWALL (3-S C (TV 1) EA 1 28 304-06000 OUTLET STRUCTURE W/ ADGATE EA 1 29 412-00700 INLET TYPE FOOT) EA 1 30 SINGL MBO INLET EA 31 609-21010 18" REINFOR CONCRETE END SECTION EA 1 32 RUBBER F ED EROSION LOG TYPE 1 (9 INCH) LF 120 33 208-00012 EROSION LOG TYPE 1 (9 INCH) LF 270 34 403-34741 SEEDING (NATIVE)(DRILLED) AC 0.07 35 304-06000 MULCHING (HYDRAULIC) AC 0.06 36 208-00 STORM DRAIN INLET PROTECTION (TYPE III) EA 2 37 4 0102 MIRAFI FW300 GEOTEXTILE SY 23 38 609-21010 SOIL RETENTION BLANKET (EXCELSIOR) SY 240 39 208-00046 PRE-FAB CONC WASHOUT STR (TYPE 1 EA 1 0 CURB SOCK EA 11 41 208-00207 EROSION CONTROL MANAGEMENT DAY 10 GRADING QUANTITIES CONTRACT ITEM QUANTITY UNITS GRADING - CUT (UNADJUSTED, TAKEN FROM Fl ED GRADE) 185 CV GRADING- FILL (UNADJUSTED, TAKE OM FINISHED GRADE, INCLUDES RIPRAP AND ING VOLUMES) 15 CV NET GRADING -CUT (UNADJU D. TAKEN FROM FINISHED GRADE. INCLUDES R P AND PAVING VOLUMES) 170 CV NC -CUT (UNADJUSTED) 185 CV GRAD( -FILL (ADJUSTED BY 12% FOR COMPACTION) 17 CY NET GRADING - CUT (ADJUSTED) 16B CV MINUS RIPRAP VOLUME 14 CV FINAL NET GRADING - CUT (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 182 CY Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN ENGINEERS ESTIMATE Project No./Code Creation Dole: 08/312020 Initials MEC Date Comments Initials nn. ': PUBLIC WORKS DEPARTMENT liii H.STREET P.O. BOX 758 GREELEY, CO. 80632-0758 PHONE. 970) 356-4000 FAX' (�70) 304-8487 No Revisions 3313c LasmModded Dee. 4/162021 Imbals MEC 09/182020 ISSUE FOR 60% REVIEW MEC Full Pam. Vr r c Uu arc Ks MASTER 17/06/1020 ISSUE FOR 95% REVIEW MEC Revteetl Designer ETN Draxln Number 00.12 G Drawing File Name: 3313C-00-CVR-LNA-0O.DWG 03/122021 °• ISSUE FOR 100%REVIEW MEG Detwiler MEC Void Sheet Number 13 of 92 ANoCAD Vernon. 2020 Sale: AS NOTED Unila. English 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset Refer to Bid Tabulation for Quantities. UMMARY OF APPROXIMATE QUANTITIES WATER QUALITY SWALE 7 BID NUMBER CONTbQITEM NUMBE CONTRACT ITEM UNIT PLAN QUANTITY AS CONSTRUCTED 1 201-00000 CLEARING AND GRUBBING AC 0.45 2 203-00010 UNC SIFIED EXCAVATION (COMPLETE IN PLACE) CY 250 3 206-00050 EXPORT FILL CY 240 4 207-00210 OCKPILE TOPSOIL CY 370 5 506-00210 GROUT IPRAP (12 INCH) CY 17 6 207-00305 TOPSOIL EMENT CY 370 7 212-00702 BIOTIC SOIL AMENDM S (BLACK) LB 2,275 8 203-00060 EMBANKMENT MATERIAL (COMP IN PLACE) CY 150 9 206-00012 EROSION LOG TYPE 1 (9 INC LF 890 10 208-00046 PRE-FAB CONC WASHOUT STR (TYPE EA 1 11 212-00706 SEEDING (NATNE)(DRILLED) AC 0.45 12 213-00011 MULCHING (HYDRAULIC) 0.45 13 420-00102 MIRAFI FW300 GEOTEXTILE SY 14 206-00207 EROSION CONTROL MANAGEMENT DAY 0 GRADING QUANT S CONTRACT ITEM QUANTITY UNITS GRADING - CUT (UNADJUSTED, EN FROM FINISHED GR 245 CV GRADING - FILL (U STED, TAKEN FROM FINISHED GRADE, INCLU RIPRAP AND PAVING VOLUMES) 5 CV NET GRADI UT (UNADJUSTED. TAKEN FROM FINISHED GR INCLUDES RIPRAP AND PAVING VOLUMES) 240 CV GRADING- CUT (UNADJUSTED) 245 CV GRADING - FILL (ADJUSTED BY 12% FOR COMPACTION) 6 CV NET GRADING - CUT (ADJUSTED) 238 CY MINUS RIPRAP VOLUME 17 CV FINAL NET GRADING - CUT (ADJUSTED FOR COMPACTION AND RIPRAP VOLUME) 256 CV �,p� REG�ST cc'- "5L. 40776 m 9o�Fs ....... r t4 's70NAL Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project NoJCode Creation Dole: 08/312020 Inibals. MEC Date. Comments'. IMiale MASTER DRAINAGE PLAN 14e1 Maeilee 0lee: 4/162021 Inhale MEC D911B2020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT Na Revisions: ENGINEERS ESTIMATE 33130 Ful Path: 1111 H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC P.D. BOX 758 Designer Draann Number 00.13 DwN Fle Name: 33130-00-CVRLNA-0O.DWG GREELEY. CO. 80632-0758 Revind: 9 EN 0 03112/2021 ISSUE FOR 100%REVIEW MEC PHONE: 970)358.4000 Detailer MEC AjtoCADVemm.. 2020 Sale: AS NOTED Unta: Enghsh 04/732021 ISSUE FOR 100% REVIEW MEC FAX. (b7o)3w�4e7 Void: Sheet Subset. Sheet Subset Sheet Number 14 of 92 1 On 46) NI- II.A1NOS I . T. 40776 W. SS20NAt. File Information Last Modified Date 3/1212021 Initials MEC Index of Revisions Date Comments 081182020 ISSUE FOR 60% REVIEW 11/062020 ISSUE FOR 95% REVIEW 03/122021 ISSUE FOR 100% REVIEW SHEET 16 / V i A II % I II WELD COUNTY InitiSs. v C r` PUBLIC WORKS DEPARTMENT 1111 H STREET P.O. BOX 758 GREELEY, CO. 80632-0756 PHONE: 00 870) 3560 FAX: (V70) 3048487 MEC MEC MEC MEC No Revisions Revised Void EROSION AND SEDIMENTATION NOTES: 1. CONTRACTOR IS RESPONSIBLE FOR INSTALLING AND MAINTAINING ALL CONTROLS DURING INITIAL, INTERIM, AND FINAL CONDITIONS. 2. ALL CONTROLS SHALL BE INSTALLED WITHIN THE PROPERTY LINES UNLESS OTHERWISE SPECIFIED. WHEN CONSTRUCTION ACTIVITIES DISTURB ADJACENT AND/OR RIGHT -CF -WAY PROPERTIES, COORDINATION WITH PROPERTY OWNERS IS REQUIRED PRIOR TO CONSTRUCTION. EROSION CONTROL LEGEND -- 5220 - - - - EXISTING INDEX CONTOUR EXISTING INTERMEDIATE CONTOUR 5220 PROPOSED INDEX CONTOUR 5220 PROPOSED INTERMEDIATE CONTOUR IP O INLET PROTECTION pp OUTLET PROTECTION vrC ® VEHICLE TRACKING CONTROL SCL _-a._Q_ SEDIMENT CONTROL LOG CWA ® CONCRETE WASHOUT AREA ECB PERMANENT EROSION CONTROL BLANKET C349CURB SOCK I I, 0 100 200 II set WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN OVERALL EROSION CONTROL PLAN 33130 Designer ETN Drawing Number CE1.0 DetailerMEC Sheet Subset Sheet Subset'. Sheet Number 15 of 92 > ' / EROSION CONTROL LEGEND ® A. PUBLIC WORKS OFFICE EXISTING INDEX CONTOUR POND 6 RUBBER FILLED EXISTING INTERMEDIATE CONTOUR LOGS FOR PERIMETER \:.. •CONTROL TO PROTECT , . 5220 PROPOSED INDEX CONTOUR EXISTING GRASS N. - 5220 PROPOSED INTERMEDIATE CONTOUR L INLET PROTECTION ♦ O �' ♦\ O OUTLET PROTECTION' • ♦• BUILDING 1 THIS SHEET i, FUEL SITE ` • . �♦ \ ' VTC ® VEHICLE TRACKING CONTROL v/I KEYMAP ____ SEDIMENT CONTROL LOG CWA CONCRETE WASHOUT AREA I. ` ��•� S PERMANENT EROSION CONTROL BLANKET i •BUILDING 2 WELDING SHED' ~ SALT/SAND SHED "FIL ` CURB SOCK POAPORATIO y♦ POND 5 `y II 1 BUILDINGS 00„REG/s IP \ ��;��.\5T.N••rF t:iWOND'_. pAy\♦ RIPRAP RUNDOWN - -�..._ �__-__ p; 4O%%s N:� " .Y • b.MJ✓r1YJY 'x a'.e.L I1b� 'sr '.BFI W. 14�iSi�I, lnU'.•r l� \ • ., �� - :��a65f�a 6t \ Off:•. :?t{/ r .'-ass sso_ m Fss • •• v� _ '— O65J=,0652= ____ N .:: ♦ ass2�aosJ N BERMIGRAVEL ACCESS ROAD BERM/GRAVELACC ROAD - _ — — — - r asaiwe �afioe: .. 0 100 200 DRAINAGE FLOWLINE WESTERN RETENTION POND I - Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PLARKS ProjectNoJCode Cresson Date. 08/312020 InibeW. MEC Date: Comments: Irueeh MASTER DRAINAGE PLAN List Vomited Date. 31122021 Initials. MEC 0&182020 ISSUE FOR 60% REVIEW MEC • RevisionsPUBLIC WORKS DEPARTMENT No Revisions • TEMPORARY EROSION CONTROL PLAN 3313c Ful Path. v. w : 1711 H. STREET 1110612020 ISSUE FOR 85% REVIEW MEC P.O. BOX 758 ptwtng Fk Name 3313C-0E-ECP-0t.D1/rG GREELEY, 970 80832-0758 Resnaed. Detwiler. . EN Oravnnp Number CE1.1 03I12f2021 ISSUE FOR 100%REVIEW MEC PHONE' ((8701358-4000 Oetalar. MEC NsoCAD Vws o: 2020 SIs6: AS NOTED Unda: En FAX' (87013048187 Void. 9�' OM132021 ISSUE FOR 100%REVIEW MEC Sheet Subset Sheol Subset. Shoot Number 16 of 92 i NOTE, / OUTLET PROTECTION IS j PERMANENT RIPRAP �7 PAD AS DETAILED IN THE • I -_-_____ _ _ _ _ DRAINAGE AND GRADING PLAN SHEETS. \ ,4 /' , •' / // `.... REG7�� ...... •. � � ' 40776 _ -•, ,�,.. ._ H STREET .. �G` eSS/DNA tqQY L • - / Y -:A ' I _ THIS SHEET TT I - -' BERM F / 0• - >- I KEYMAP / F a z ., z r /' saw... / O z \ _ t°¢ POND \... / ::•`.. 7T"\ •\dI. N ---- W wp EROSION CONTROL LEGEND \ ` 5220 EXISTING INDEX CONTOUR SCL ' \ I u- EXISTING INTERMEDIATE CONTOUR SEDIMENT CONTROL LOG POND 3 5220 PROPOSED INDEX CONTOUR 5220 PROPOSED INTERMEDIATE CONTOUR ECB PERMANENT EROSION CONTROL BLANKET IP I INLET PROTECTION � CBI OP OUTLET PROTECTION CS ,Cy CURB SOCK It 0 100 200 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 08/31t2020 Inals MEC Data: Comments Initials: MASTER DRAINAGE PLAN TEMPORARY EROSION CONTROL PLAN .. PUBLIC WORKS DEPARTMENT No Revisions 3313c Last odde. 3/12/2021 Initials. MEC 08/182020 ISSUE FOR 60% REVIEW MEC 1111 H. STREET P.O. BOX 756 970 356-4000 PHONE. 670(358.4000 FM: (970)3044487 Fur Path: PL MASTt 11/062020 ISSUE FOR 95% REVIEW MEC Revised: Designer. ETN Dranm Number CE1.2 B nA Dmd Fite Name. 3313C-OE-ECP-01.DWGGREELEE: 03/122021 ISSUE FOR 100% REVIEW MEC Deteller. MEC Void: Sheet Number 17 of 92 AutDCADVersian: 2020 Sete: AS NOTED Units Engkh 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset. RAP \\, MAT EROSION CONTROL LEGEND `- EXISTING INDEX CONTOUR PUSUC WORKS OFFICE \ . c EXISTING INTERMEDIATE CONTOUR POND 6 PROPOSED INDEX CONTOUR PROPOSED INTERMEDIATE CONTOUR \ eca — PERMANENT EROSION CONTROL BLANKET v: / \ •� 0 TOPSOIL PLACEMENT, SEEDING, BIOTIC �� p .\ -. EARTH TREATMENT v'� / \ \,.\\ BUILDING 1 THIS SHEET FUEL SITE `, - _ 1- V N.TS WEED SHED ,. BUILDING 2 WELDING SHED ...' SALT/SAND SHED v 1 I EXISTING DRAINAGE FLOWUNE ' I PERMANENT EROSION CONTROL NOTES: 1. ALL DISTURBED AREAS SHALL HAVE TOPSOIL AND BIOTIC EARTH, WITH SEEDING. 2. ALL DISTURBED AREAS PRONE TO RILL EROSION (PONDS AND BURIED RIP RAP) SHALL HAVE AN EROSION CONTROL BLANKET. 3. ALL DISTURBED AREAS THAT DO NOT HAVE AN EROSION CONTROL BLANKET SHALL BE HYDROMULCHED- • a°••111'11' I/u/I/I ,I . \° • _ _.�.� .��.a r•=+�w -, .' i i i i,. i. 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" _>so PROPOSED INTERMEDIATE CONTOUR ECB PERMANENT EROSION CONTROL BLANKET RIPRAP MAT PEc C TOPSOIL PLACEMENT, SEEDING, BIOTIC iEL MM EARTH TREATMENT POND3 �v 0 100 200 Fee! Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 08/312020 Initials MEC Data Comments. Inlaals MASTER DRAINAGE PLAN lastModified Date. 4/122021 Initials MEC 08/182020 ISSUE FOR 60% REVIEW MEC .roar % PUBLIC WORKS DEPARTMENT No Revisions PERMANENT EROSION CONTROL PLAN 3313c Fu1Path. M "j°°` 1111 H. STREET 11N82020 ISSUE FOR 05% REVIEW MEC P.O. BOX 750 Revised Daaipnec ETN Dravin9 Number CE1.4 FM Noma: 33130-0E-PECP-01.DW0 GREELEY, CO. 80632-0758 aq 03/122021 ISSUE FOR 100% REVIEW MEC PHONE: (t97013584000 Detaikr. MEC AularlD Verson: 2020 Scale: AS NOTED hit EOq h 041132021 ISSUE FOR 100% REVIEW MEC FAX: (810)3044497 Void. Sheet Number 19 0l 92 „f>7 Sheet Subset Sheet Sunset STORMWATER MANAGEMENT PLAN (SWMP) THIS STORMWATER MANAGEMENT PLAN IS TO BE RETAINED AND MAINTAINED ONSITE INCLUDING FINAL LANDSCAPING PLANS AND ANY OTHER EROSION CONTROL DOCUMENTATION. A SWMP ADMINISTRATOR WILL BE DESIGNATED BY THE CONTRACTOR AND IS RESPONSIBLE FOR DEVELOPING, IMPLEMENTING, MAINTAINING, AND REVISING THIS SWMP. THE SWMP ADMINISTRATOR IS THE CONTACT FOR ALL SWMP-RELATED ISSUES AND IS RESPONSIBLE FOR ITS ACCURACY, COMPLETENESS, AND IMPLEMENTATION. THE FOLLOWING HAS BEEN DESIGNATED AS THE SWMP ADMINISTRATOR FOR THIS PROJECT: NAME: CONTACT INFO: THE SITE IS LOCATED AT 1111 H STREET, GREELEY, CO 80631 AND AT APPROXIMATELY 40°26 47" LATITUDE, 104°42' 07" LONGITUDE. THE PROPOSED PROJECT CONSISTS OF OVERLOT GRADING, STORM INFRASTRUCTURE, DETENTION POND CONSTRUCTION, AND ASPHALT PAVING CONSTRUCTION IN THE THE CITY OF GREELEY AND WELD COUNTY. THE TOTAL PROPERTY IS APPROXIMATELY 41.3 ACRES WITH AT TOTAL DISTURBANCE OF 5.9 ACRES. NO AREAS GREATER THAN 40 ACRES SHALL BE DISTURBED AT ANY GIVEN TIME. NO CONSTRUCTION ACTIVITIES SHALL OCCUR OFFSITE OR OUTSIDE OF THE CONSTRUCTION LIMITS SHOWN ON THE CONSTRUCTION DOCUMENTS. THE SEQUENCE OF CONSTRUCTION STARTS IS AS FOLLOWS: PHASE ESTIMATED ACTUAL CONSTRUCTION START APRIL, 2021 ROAD AND OVERLOT GRADING MAY, 2021 Qp•• S T. /ST UTILITY CONSTRUCTION MAY, 2021 � o 40776 `�� PAVING JUNE, 2021 O SITE RESTORATION AUGUST, 2021 poFSS/0NAL THE EXISTING SITE CONSISTS OF DEVELOPED LAND AND NATIVE VEGETATION AND IS APPROXIMATELY 10% COVERED WITH VEGETATIVE GROUND COVER. THE ESTIMATED HISTORIC AND DEVELOPED RUNOFF COEFFICIENTS ARE 0.86 AND 0.86. THERE ARE CURRENTLY NO OFFSITE FLOWS ENTERING THE PROPERTY ONSITE FLOWS ARE 192.5 CFS. ONSITE DETENTION IS 5.30 ACRE FEET STORMWATER IS DISCHARGED FROM THIS SITE TOTHE POUDRE RIVER. A DRAINAGE REPORT FOR THIS DEVELOPMENT HAS BEEN SUBMITTED TO THE ENGINEER OF WELD COUNTY. OTHER POTENTIAL POLLUTION SOURCES SUCH AS A FUELING STATION AND MAGNESIUM CHLORIDE TANKS ARE LOCATED IN THE NORTHEASTERN DEVELOPED PORTION OF THE SITE. THE MAJORITY OF THE SITE CONSISTS OF AQUOLLS AND AQUENTS GRAVELLY SUBSTRATUM, WHICH IS OF THE HYDROLOGICAL SOIL GROUP D (HAVING LOW PERMEABILITY RATES AND PRODUCING RELATIVELY HIGH RUNOFF). THE PONDING AND RETENTION AREAS CONSIST OF MOSTLY ELLICOT-ELLICOT SANDY -SKELETAL COMPLEX, WHICH IS OF THE HYDROLOGICAL SOIL GROUP A (HAVING RELATIVELY HIGH PERMEABILITY RATES AND LOW RUNOFF POTENTIAL WHEN THOUROUGHLY WET). BEST MANAGEMENT PRACTICES FOR STORMWATER MANAGEMENT NON STRUCTURAL BMPS WILL BE IMPLEMENTED TO THE MAXIMUM EXTENT POSSIBLE. THE UTILIZATION OF NON STRUCTURAL BMPS WILL BE AN ONGOING PROCESS DIRECTED AT PREVENTING EROSION. THE NON STRUCTURAL BMPS WILL RECEIVE CONTINUOUS EMPHASIS THROUGHOUT CONSTRUCTION BECAUSE THEY AVERT PROBLEMS BEFORE THEY OCCUR AND REDUCE THE NEED FOR STRUCTURAL BMPS. NON STRUCTURAL BMPS WILL CONSIST PRIMARILY OF PRESERVATION OF EXISTING MATURE VEGETATION AND TREES, PLANNING AND SCHEDULING CONSTRUCTION ACTIVITIES AIMED AT ACHIEVING THE GOAL OF MINIMIZING EROSION. FURTHERMORE, CONSTRUCTION PERSONNEL WILL BE INSTRUCTED AND SUPERVISED IN CONSTRUCTION METHODS CONSISTENT WITH EROSION PREVENTION PRACTICES. PLANNED STRUCTURAL BMPS FOR EROSION AND SEDIMENT CONTROL ARE SHOWN ON THE EROSION AND SEDIMENTATION CONTROL PLAN. IMPLEMENTING THESE MEASURES SHOULD MINIMIZE NUISANCE SILT AND SEDIMENTATION EXITING THE SITE AND PREVENT CLOGGING EXISTING STORM SEWERS AND STREET GUTTERS. APPLICATION OF THESE BMPS FOR STORMWATER MANAGEMENT ARE FOR CONSTRUCTION PERIODS AND ARE CONSIDERED TEMPORARY. POST -DEVELOPMENT STORM WATER MANAGEMENT IS PROVIDED THROUGH VEGETATED LANDSCAPED AREAS, GRASSED SWALES, RIPRAP PROTECTION, STORM COLLECTION SYSTEM, AND THE UTILIZATION OF THE PERMANENT DETENTION AND WATER QUALITY POND. Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code C,eaeon Date 08/312020 Initials MEG Date Comments Initials. MASTER DRAINAGE PLAN Last ModAied Date. 3/102021 Initials MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC C PUBLIC WORKS DEPARTMENT No Revisions SWMP 3313c Full Path. ° Cw t.Dcouu v pueLIc WnKS MASTERHe 95% 1111 H. STREET 11/Ofi2020 ISSUE FOR 100 REVIEW MEC P.O. BOX 758 Revisetl. Designer ETN Drawing File Name' 3313C-OE-ECP-DET-OO.DWG GREELEV, CO. 80632-0758 Dravnnp Number CE1.5 03/122021 ISSUE FOR 100%REVIEW MEC o- r PHONE. ((970) 356<ODD Daimler MEG AoCAD Version 2020 Scale AS NOTED Units. Engpsh 04(132021 ISSUE FOR 100% REVIEW MEC FAX (870)304-6V void Sheet Number 20 of 92 r Sheet Subset Sheet Subset VEHICLE TRACKING CONTROL (VTC): A STABILIZED CONSTRUCTION ENTRANCE WILL BE PROVIDED AT THE ENTRANCE FROM THE PRIVATE ROAD. THE CONSTRUCTION ACCESS AND PARKING WILL BE GRADED AND COVERED WITH A CRUSHED STONE BASE COURSE DURING CONSTRUCTION. THE VEHICLE TRACKING CONTROL WILL BE RELOCATED WITH THE CONSTRUCTION ACCESS AS NECESSARY. SEDIMENT CONTROL LOGS (SCL): SEDIMENT CONTROL LOGS SHALL BE INSTALLED WITH RESPECT TO PROPOSED DRAINAGE PATTERNS. SEDIMENT CONTROL LOGS SHALL BE CONSTRUCTED ALONG THE PORTIONS OF THE ENTIRE PROPERTY AND ALONG ANY DRAINAGE AREAS SUBJECT TO EROSION. THE SEDIMENT CONTROL LOGS SHALL BE INSTALLED AT THE DOWNHILL SIDE OF THE EXISTING SLOPES ACROSS THE SITE AND AT ALL POINT DISCHARGE AREAS WHETHER SHOWN OR NOT, SEDIMENT CONTROL LOGS SHALL BE MAINTAINED AS NEEDED THROUGHOUT THE CONSTRUCTION PROCESS. THE TEMPORARY SEDIMENT CONTROL LOGS WILL REMAIN UNTIL THE STORM SEWER STRUCTURES ARE COMPLETED AND GROUND COVER IS EFFECTIVE AND FINAL STABILIZATION IS ACHIEVED. INLET PROTECTION (IP): THE INLET PROTECTION WILL BE INSTALLED AS THE STORM SEWER STRUCTURES ARE CONSTRUCTED. EACH INLET ON THE PROPOSED STORM SEWER SYSTEM WILL HAVE A TEMPORARY INLET SEDIMENT TRAP CONSTRUCTED AROUND IT. IN PAVED AREAS, THIS TRAP CONSISTS OF WIRE MESH SOCKS OR CONCRETE BLOCKS TO FILTER THE STORM RUNOFF AND ALLOW ANY SILT TO SETTLE OUT. IN FIELDS OR LANDSCAPED AREAS THIS TRAP CONSISTS OF SEDIMENT CONTROL LOGS. OUTLET PROTECTION (OP): THE STORM SEWER OUTLETS WILL BE PROTECTED WITH RIPRAP. PLACING RIPRAP AT PIPE OUTFALLS REDUCES EXIT VELOCITIES AND REDUCES SCOUR. THIS RIPRAP WILL BE LEFT IN PLACE AS PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN. OVERLOT GRADING: ALL OPEN AREAS WILL BE TREATED WITHIN 14 DAYS OF COMPLETION OF THE OVERLOT GRADING. ALL OVERLOT GRADING IN THE NON -IRRIGATED AREAS WILL HAVE THE SURFACE ROUGHENED AND WILL BE PERMANENTLY LANDSCAPED OR TEMPORARILY SEEDED UNTIL THE PLANNED INSTALLATIONS ARE COMPLETED. AT THE COMPLETION OF THE MASS GRADING, ALL EXPOSED SOIL AREAS WILL HAVE THE SURFACE ROUGHENED AND PLANTED WITH A REVEGETATION SEED MIX. VEGETATION IS TO BE MAINTAINED THROUGHOUT CONSTRUCTION BY THE CONTRACTOR UNTIL AREAS ARE PERMANENTLY LANDSCAPED. ALTERNATELY, ROUGH -CUT DRIVEWAYS OR PROPOSED PAVED AREAS CAN BE COVERED WITH A LAYER OF AGGREGATE, ROAD BASE OR ASPHALT PAVING. DUST CONTROL MEASURES: DISTURBED AREAS NOT YET READY TO BE SEEDED, LANDSCAPED, PAVED, OR OTHERWISE STABILIZED SHALL BE WATERED, OR RIPPED AS NECESSARY TO PRECLUDE VISIBLE DUST EMISSIONS. ITEMS ARE SCHEDULED TO BE IMPLEMENTED ACCORDING TO THE CONSTRUCTION SCHEDULE. AS WORK PROCEEDS, IMPLEMENTATION OF INDIVIDUAL BMPS IS TO COINCIDE WITH THE CONSTRUCTION THEREBY MINIMIZING THE EXPOSURE OF UNPROTECTED AREAS. THE INLET PROTECTION (FOR EXISTING INLETS), AND VEHICLE TRACKING CONTROL OF THE CONSTRUCTION ENTRANCE WILL BE PERFORMED WHEN THE GRADING BEGINS. THE INLET PROTECTION WILL BE INSTALLED AS THE STORM SEWER STRUCTURES ARE CONSTRUCTED. THE RIPRAP PROTECTION WILL BE INSTALLED AS THE STORM SEWER OUTFALLS OR CULVERTS ARE CONSTRUCTED. THE STRUCTURAL BMPS THAT DO NOT BECOME PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN ARE TO BE REMOVED, AS THE PAVING, LANDSCAPING, AND OTHER PERMANENT GROUNDCOVER INSTALLATIONS ARE COMPLETED. FUGITIVE DUST EMISSIONS RESULTING FROM GRADING ACTIVITIES AND/OR WIND SHALL BE CONTROLLED USING THE BEST AVAILABLE CONTROL TECHNOLOGY AS DEFINED BY THE COLORADO DEPARTMENT OF HEALTH AT THE TIME OF GRADING. THE GRAVELING IS TO BE MAINTAINED AND EXTENDED CONSTRUCTION PROGRESSES ESPECIALLY AROUND THE BUILDING SITE. THE STRUCTURAL BMPS ARE TO BE REMOVED, AS THE PERMANENT LANDSCAPING INSTALLATIONS ARE COMPLETED. THE EROSION AND SEDIMENT CONTROL PLAN MAY BE MODIFIED BY THE OWNER'S ENGINEER, COUNTY ENGINEERING INSPECTORS,OR WELD COUNTY OR ITS AUTHORIZED REPRESENTATIVE AS FIELD CONDITIONS WARRANT. STORMWATER DETENTION AND WATER QUALITY: WATER QUALITY TREATMENT IS PROVIDED ONSITE IN WATER QUALITY AREA. THE PROPOSED DETENTION AREAS WILL BE UTILIZED AS EVAPORATION PONDS, WQCV PONDS AND GRASS SWALES. REc7 T. 40776 4A •O s o `2v F............ •''G Ss/ONA L Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN $WMP Project No./Code Creation Date. 08/31/2020 Initials MEG Date Comments Initials PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. Box 758 CO. 806320758 PHONE 197DI 3564000 FAX. (8701304-6497 No Revisions 3313c Last Misfired Dale. 3/102021 Initials MEC 0911812020 ISSUE FOR 60% REVIEW MEC Fiji Patn. v c r u u L vo v.. 11/062020 ISSUE FOR 95% REVIEW MEC Revised Designee 9 ETN Drevnn Number CEi.6 9 Drari fie Neme'. 3313C-OE-ECP-DET-OODWGGREELEY. n9 031122021 ISSUE FOR 100% REVIEW MEC Deta,Ier MEC Void Sheet Number 21 of 92 AutoCAD Version. 2020 Sole AS NOTED Units. En¢sh 041132021 ISSUE FOR 100% REVIEW MEG Sheet Subset Sheet Subset TEMPORARY SEEDING AND MULCHING: ALL SEEDS FURNISHED SHALL BE FREE FROM NOXIOUS SEEDS (SUCH AS RUSSIAN OR CANADIAN THISTLE, COURSE FESCUE, EUROPEAN BINDWEED, JOHNSON GRASS, KNAPWEED, AND LEAFY SPURGE. THE FORMULA USED FOR DETERMINING THE QUALITY OF PURE LIVE SEED (PLS) SHALL BE (POUNDS OF SEED) X (PURITY) X (GERMINATION) = POUNDS OF PURE LIVE SEED (PLS). SEEDING RECOMMENDATIONS ARE PROVIDED BELOW, BUT MAY BE MODIFIED WITH THE OWNER'S APPROVAL TO MAKE THE BEST USE OF EXISTING CLEARINGS AND GRUBBINGS: SPECIES COMMON NAME VARIETY LBS/ACRE AGROPYRON SMITHI WESTERN WHEATGRASS ARRIBA 8.0 ARRHENATHERUM ELATES TALL OATGRASS 3.0 LOLIUM PERENNE PERENNIAL RYEGRASS PENNFINE 2.0 ALL SEEDS SHALL BE DRILLED NOT HYDROSEEDED. ALL DISTURBED AREAS SHALL BE SEEDED AND HYDROMULCHED IF PERMANENT VEGETATION IS NOT IMMEDIATELY INSTALLED. THE SEEDED AREA SHALL BE HYDROMULCHED AND THE MULCH ATTACHED WITHIN TWENTY-FOUR (24) HOURS AFTER SEEDING. AREAS NOT MULCHED AND ATTACHED WITHIN TWENTY-FOUR (24) HOURS AFTER SEEDING MUST BE RESEEDED WITH THE SPECIFIED MIX AT THE CONTRACTOR'S EXPENSE, PRIOR TO MULCHING AND ATTACHING. ON STEEP SLOPES OR OTHER SPECIFIED AREAS AS SHOWN ON THE PLANTING PLAN, WHICH ARE DIFFICULT TO MULCH AND ATTACH BY CONVENTIONAL METHOD, BURLAP OR OTHER BLANKETING MATERIALS PROPERLY ANCHORED AND SECURED MAY BE USED WHEN APPROVED BY THE WELD COUNTY ENGINEER. PERMANENT STABILIZATION MEASURES: RIPRAP FOR STORM DRAIN OUTFALLS AND ROCK CHECK DAMS WILL BECOME PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN AND WILL NOT BE REMOVED. PERMANENT LANDSCAPING WILL INCLUDE SODDING, SEEDING, OR OTHER VEGETATIVE COVER TO OPEN AREAS. NATIVE PERENNIAL SEEDING WILL BE ESTABLISHED IN NON -IRRIGATED AREAS AND SOD OR OTHER VEGETATIVE COVER WILL BE ESTABLISHED IN IRRIGATED OPEN AREAS. ALL PERMANENT STABILIZATION MEASURES WILL BE SPECIFIED BY THE LANDSCAPE ARCHITECT OR OWNER. MATERIALS AND SPILL PREVENTION: THE CONTRACTOR WILL STORE CONSTRUCTION MATERIALS AND EQUIPMENT IN CONFINED AREAS ON SITE FROM WHICH RUNOFF WILL BE CONTAINED AND FILTERED. MATERIALS WILL BE STORED OFF THE GROUND AND PROTECTED FROM THE WEATHER BY A COVER OR STORED IN A CONTAINER SUCH AS A VAN OR TRAILER. AN EARTHEN DIKE WILL BE CONSTRUCTED AROUND THE PERIMETER OF THE FUEL STORAGE AREA TO PREVENT MATERIALS FROM CONTACT WITH SURFACE RUNOFF. EQUIPMENT MAINTENANCE WILL BE PERFORMED IN A DESIGNATED AREA AND STANDARD MAINTENANCE PROCEDURES, SUCH AS THE USE OF DRIP PANS, WILL BE USED TO CONTAIN PETROLEUM PRODUCTS. CONCRETE WASHOUT TO BE PERFORMED AWAY FROM CONVEYANCES IN A PREFABRICATED CONCRETE WASHOUT STRUCTURE. INSPECTION AND MAINTENANCE: THE EROSION CONTROL MEASURES WILL BE INSPECTED DAILY DURING CONSTRUCTION BY THE CONTRACTOR AND AFTER EACH RAIN EVENT. ALL INSPECTIONS SHALL BE DOCUMENTED AND SHALL INCLUDE THE DATE OF INSPECTION, ANY INCIDENCE OF NON-COMPLIANCE, SIGNED CERTIFICATION THAT THE SITE IS IN COMPLIANCE, AND ANY NOTES, DRAWINGS, MAPS, ETC. PERTAINING TO REPAIRS. COPIES OF ALL DOCUMENTATION SHALL BE DISTRIBUTED TO THE COUNTY AND OWNER ON A REGULAR BASIS AS SPECIFIED BY OWNER. SILT FENCE AND STRAW BALE BARRIERS WILL BE CHECKED FOR UNDERMINING AND BYPASS AND REPAIRED OR EXPANDED AS NEEDED. SEDIMENT SHOULD BE REMOVED FROM INLET FILTERS AND SILT FENCING BEFORE ONE HALF OF THE DESIGN DEPTH HAS BEEN FILLED. SEDIMENTS DEPOSITED IN THE PUBLIC RIGHTS -OF -WAY WILL BE REMOVED IMMEDIATELY. THE TEMPORARY VEGETATION OF BARE SOILS WILL BE CHECKED REGULARLY AND AREAS WHERE IT IS LOST OR DAMAGED WILL BE RESEEDED. AT MINIMUM THE CONTRACTOR OR HIS AGENT SHALL INSPECT ALL BMPS EVERY 14 DAYS AND AFTER SIGNIFICANT PRECIPITATION OR SNOWMELT EVENTS. INSTALLATIONS AND MODIFICATIONS AS REQUIRED BY THE WELD COUNTY WILL BE IMPLEMENTED IMMEDIATELY AS OF NOTIFICATION. CONTRACTOR SHALL REMOVE TEMPORARY EROSION CONTROL MEASURES AND REPAIR AREAS AS REQUIRED AFTER VEGETATION IS ESTABLISHED AND ACCEPTED BY OWNER AND MUNICIPALITY. FINAL STABILIZATION AND LONG-TERM STORMWATER QUALITY: FINAL STABILIZATION IS REACHED WHEN ALL SOIL DISTURBING ACTIVITIES AT THE SITE HAVE BEEN COMPLETED, AND UNIFORM VEGETATIVE COVER HAS BEEN ESTABLISHED WITH A DENSITY OF AT LEAST 70% OR PRE -DISTURBANCE LEVELS OR EQUIVALENT PERMANENT, PHYSICAL EROSION REDUCTION METHODS HAVE BEEN EMPLOYED. FINAL STABILIZATION WILL BE ACHIEVED USING SOD, NATIVE SEEDING, PERMANENT BMP'S, AND OTHER METHODS. CONTRACTOR SHALL BE RESPONSIBLE FOR FINAL STABILIZATION REGARDLESS OF ACCEPTANCE BY OWNER OF THE CONTRACTOR ITEM. A� RE1Sr 40776 t°1 AO% •••i6 �SiS/ONAL ...G Computer File Information Index of Revisions WELD COUNTY WELD MASTER DRAINAGE PLAN Project No./Code Creation Date: 08/312020 Initials: MEC Date: comments: InNels. Last Modified Dale: 3/102021 InibaIs. MEC, PUBLIC WORKS DEPARTMENT No Revisions3313c 0 9/1 8 2 02 0 ISSUE FOR 60% REVIEW MEC SWMP Full Path COUNTY 1111 H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 75B Revisetl Designer. ETN Drawing Number CE1.7 Drawing FileNeme: 3313C-0E-ECP-OET-00.DWGGREELP: 970YCO. BO6-4OOO8 03/122021 ISSUE FOR 100% REVIEW MEG PHONE f970i 356000 Detwiler: MEC AudoCADVe adn 2020 Sc e: AS NOTED Units: E sh FAX: ( 70)304E497 ,�o,u Sheet Number 22 of 92 ^Bg 04/132021 ISSUE FOR 100%REVIEW MEC Sheet Subset. 5^ee!Subset :t CRATE IiEIIIi SEE ROCK SOCK DETAIL FOR JOINTING ROCK SOCK IP-3. ROCK SOCK SUMP/AREA INLET PROTECTION PSNER.AI flirt ppclrrilaN INSTALIAnOM NLl(Ej I. SEE PLµ VR'.W FOR -LOCATION OF INIEt PRowcnoN. -TYPE OF INLET PROTECTION (IP.I, LP.2, IP.), IP.A, IP 5. IP.6) 2 INLET PRorECOM SH41 BE MSTMLED PROMPTLY AFTER MIT CONSTRUCTION OR PAYTNG IS COMPLETE.. (TYPICALLY WITHIN A8 HOURS) IF A RN"FALL/RLMOFF EVENT IS FORECAST. NST4l. INLET PROTECTION PRIOR 10 ONSET OF EVENT 3. MANY JURISDICTIONS HAVE BMP DETAILS M(T VARY FROM UDrCD STANDARD DETAILS CONSULT WIIH LOCAL JURISDICTIONS AS TO W&IICH DETAIL SHOULD RE USED WHEN DIFFERENCES PRE NOTED T1ih11wiJ :rn�Ll)tvuzLFTci1R I' I INSPECT BMPS EACH WORKDAY, PAD MAINTAIN THEM IN EITECTNE OPCRATIN6 CONDITION. MANTENACE OF BMPS SHOULD BE PROACPVE, NOT MEKfivE. INSPECT BMPS AS SOON AS POSSIBLE (AND 4WMS WITHIN 24 HORS) FOLLOWING A STORM THAI CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAW)FNNRCE. 2. FREQUENT OSSEMATIONS AND MAINTENANCE ARE NECESSARY TO MNNTMN BRPA IN EFFECTIVE OPEHAIMO CONDITION INSPECTIONS AND CORRECIM. MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3 WHERE BMP, HAVE FAILED. REPAIR OR REPIACEMENT SHOULD SE INITIATED UPON ISCObERY OF ME FAILURE 4 SEDIMENT ACCUMULATED UPSTREAM OF INLET PROTECTION SMALL BE REMOVED AS NECESSARY TO MAMTAN BMP EffECRVENES5. 1YRCAILY WHEN STORAGE VOLUME REACHES SOS OF CAPACITY, A DEPTH OF 6- WHEN SILT FENCE IS USED, OR IS OF THE HEIGHT FOR STRAW BALES 5 INLET PROTECTION IS TO RELWN M PLACE UMNL THE UPSTREAM DISTURBED AREA is PERMANENTLY S1ABtLIZED. UNLESS TIE LOCAL JURISDICTION APPROVES EARLIER REMOVAL Of INLET PROTECTION IN STREETS. 6. WHEN INLET PROTECTION AT AREA INLETS 5 REMOVED, THE DISTURBED AREA SMALL BE COVERED WITH TOP SOIL, SEEDED AND MULCHED OR OTHERWISE St*BUZED IN A NANKEEN APPROVED BY THE LOCAL JURI5DICTON- (MTM ADMRD FRW Komi OF MARS*. La loo MID On Of WIMP. CDUFUDO. CI MWNJ II MHRNR I MThY CCOONSULLT SMm .0CIA. JUR SDI ONS AS TTO WN CH IOETL SHOULD BE US D WHENONO DElAl5. DIFFERENCES ARE NOTED NOYL THE DETAILS INCLUDED WITH THIS FACT SHED SHOW COMMONLY usro. CONVENTIONA METHODS 0€ INLET PROTECTION IN THE DENVER METROPOUTN AREA MERE. ARE MARY PROPRIETARY INLET PROTECTION METHODS ON THE MARKLI. UQFCD NEITHER ENDORSES NOR DISCOURAGES USE OF PROPRIETARY INLET PROTECTION, HOWEVER. IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWAP AMID THE SUP MUST BE INSTALLED AND WMNINNED AS SHOWN IN THE MANUFACIURER'5 DE1NLS NOTE; SOME MUNICIPAUTIES DISCOURAGE OR PRpnBIT ME USC or STRAW BALES FOR INLET PROTECTION CHECK WITH LOCAL JURISDICTION TO DETERMINE IF STRAW BALE NUT "ROTECTION IS ACCEPTABLE. MEC Date: I Comment: I Initials: I SC -5 Rock Sock (RS) ,:,1- • • ;r.� � III S. • SEsi-� ywtiyf•. !J/fSAAbS,�JisPP �[:,N�rP,.,Ye_�I.I{fr.:4_i�i fR.P(Jj. Si..li lN(ZY[A.t.l SN :a A e A .N NN GP AT XWt SILL R 114[0 Rlln M KKpY?L NMNt Or 14 (MtW5) C09Jt 0 ROCK NID RRMRO 000' WODL NM ZEER •, Ref WISH SECURED TO FMK d RIC K M RMF o SOCR M M ALIEWNTM 10 fUN0 ANTS 0[M1KLN AWONM AOC UICKI on. 01141 POCK Np R' II' I IRNY MS aq*.C, R%WIN S NS CM SE OYER^RPEO (IWCALLY l2 -TUCK Q.ERAP) TO ALOO CAPS Nnl,. SPCK HNIAIpTNN MN4 I SEE PLAN NM RN- -LOCATI N(S) OI ROCK SOME MLwMfON tax SLYC 4II MASS FUUNT PASSS SOW I[SI e(L(S M. A W 11� SO - IOU - Is o -e MMM(S SPECIFICATIONS FOS W COa ACYKGATE FM CONCRETE RM MSRO WJ ML PORK SMALL R FMCLAED FACE ML SOLS 2 CHUM® ROC SMVI IT W (AM6) N ME( PIMA MACTURSD F/Q (IL YISSI NM SMALL C0 tY AIM GRUMMAN SRNN Orr 0Vf piFLI (IAMARK) J. TARE C5H SwF eE FAaNEATED O 10 GAPE POULTM IILSM, M IUAVMLNT. RIM A WaWAF OPENING CF A'- RECCMJO a &11 RQS NOM OF AS' 4 NR ARSN SVLL K !(CURD USIMC V00 AIMS M ARAN IIE5 AT S' CEMrtRS A& C ML XSNR MD AI 1- tlNR% M [NM 0 SOCAS 5 WAR. MUKIPWM.5 AMY aLLO* H( VSC w f10UR FA(T11C AS M MRRNMM TO Mrr( M(SI FOR M ROCK FK.IOAIRE RS -1. ROCK SOCK PERIMETER CONTROL DIMS. DmtIEt mN FTAKI 6RTd DMrNt NuvenitAIr 1010 Uthai' Si MIn IhauuMt (alma Mmm a Voluln I LD COUNTY asl Modified Data 31102021 Initial. MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC - . Im.l PUBLIC WORKS DEPARTMENT tii P.O. B0%7687 GREELEY, CO. 80632-0758 PHONE(970)356-9 !t FA%: (970)904.8497IuNCAD No Revlisluns' Full Path: V °5 w L " u L ^ MMACE 7rawirlgFikName: 3313C-OE-RCP-DET-OO.DWY3 11/082020 ISSUE FOR 95% REVIEW MEC [Revised 03/122021 ISSUE FOR 100%REVIEW MEC ltl Version: 2020 Scale. AS NOTED Units. En ssh 04/132021 ISSUE FOR 100%REVIEW MEC Rock Sock (RS) I MPSCI IAWR [ASH NOMwv. NO MAINTAIN FI RI IN WLCIM OMMIC cofelu. IUIMCNgKC OI ADN SNONO EE IINYCIM. NOT MKTF NYCCI SrPr a SOON ^S WEAEU IMO NAM, *,TM 24 NWMI RALOAW. A STORM THAT fwur3Y SURPRSE fRO5CN. MD PEROR KMALAKMy YWIENW.2 S 1REWFNt 00tWyAfl0N5 AND IuwlewKY YE N(CC5SM' to MAINTAIN a 0* th EPIECIM OPERATING CGAITON NYTCTIONS NR COIMECflW YEASWAS $MM^D BE D]NLENIED TNORd(MLY. 1 INUIT MBa MH FKED. PEP M M RERATLHNt SIAAAO eE MINTED UPON pXMAM, CA THE NWILL • RU.W SKIS SMALL 6E mSACEO P MA MCtlg NGMV sal(D, M OWIRD RC ,_t REPM. 5 TWO NT N%WRA20 U3NVN OF ROCK 4yi5 ASYL eE NENg!D N N& D To RWNw FLSI('MNILLry OF lit aMP, TYRSILN WHEN OM•M CI ittbuaAtno gQNU.I 6 S aMJ4T a O Me 1EYAII Of THE MCCH IOC* S RRDA 5OCAS NC TO RE WS IN PLACE WIR TM uPSMUY NVURIIVO &A is SCAMUZEo MD .tF tD ar flit LOCAL AMSM710% I MIEN RDO( SOCKS NE RI MOW MS U6IMHD MESS SOUL at CQSAEL NTH IO fM. 5EEDSD MD NAD IO M OTHERWISE STA9uZC0 AS HARPMD T M)CAL WITH Aa 4a- arum Me on a ru & Pa, MI K.Kij Rmancol YWv JuR60CIRNS RAW ip Lw LMs NNT VARY I15ON UOWCL SInORO 0* CthT YIM LOCAL JURmICIYJI$ AS TO MNDI DCTM SNOULO $ USED MEK NFIRINCSt ME NORO 11L h FETARS NRUDED WM TIRE FACT SHEET SHOW COWONLT usEO. CMVpTRN4 MtNWS tt ROCK SCCM ISTNL.STCN IN TM WARNER NEn10PGttM NRA THFRC ME RAW OTMER SHAM PRONSF tMN UC15 M HE MNMEt ugCO NEITHER NNBfS NCR 011DUROE5 USE of FROMEIMY PRORCDM PRGWCMYER. IN Pit EJgT NMMEIMY NET) UYD. IM APP IA!t MM MOM ME WNIIAIWQP MUST R M'LUU N ME ~ .M THE RW MAIL RE NSTMALn M4 M4VTMNEO M SNUKK IN IN YMNIIALDWWAY MI^LS. NOVNIJAI 2010 Urban Dnuuat and FI't (imtrol UMUIu KS'1 Urban Storm Dra1na7A ('rncna Manuel Volume 3 T. • • W 40776 • • • •• ,,;ONA L E* VVtlu (ANN IT rL2oLILP VVUNISb Project No./Code MASTER DRAINAGE PLAN EROSION CONTROL DETAILS 3313c Designer. ETN Drawing Number CE1.8 Defiler: MEC Sheet Subset: Sheet Subset: Sheet Number 23 of 92 Inlet Protection (IP) SC -6 SC -6 Inlet Protection (IP) P f� G N RA IN FT PROTECTION INSTALLATION NOTES C I f 1 SEE PLAN VIEW FOR: LOCATION OF INLET PROTECTION. -TYPE Of INLET PROTECTION (IP.1. IP.2. IP.3, IP.4. IP.5, IP.6) L ftOw D (12' MIN.) 2. INLET PROTECTION SHALL BE INSTALLED PROMPTLY AFTER INLE1 CONSTRUCTION OR PAVING ` B IS COMPLETE (TYPICALLY WITHIN 48 HOURS). IF A RAINFALL/RUNOFF EVENT IS FORECAST, INSTALL INLET PROTECTION PRIOR TO ONSET OF EVENT. CULVERT 3. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UOFCD STANDARD DETAILS. END SECTION CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN SACKFILL UPSTREAM ROCK DIFAR FERENCES E NOTED ROCK SOCK OF WATTLE SOCK CULVERT INLET PROTECTION SECTION A PLAN 10 MIN. KEY IN ROCK SOCK 0' ON BEDROCK, PAVEMENT OR PoPRAP KEY IN ROCK SOCK 2ON EARTH SECTION B CIA -1. CULVERT INLET PROTECTION CULVERT INLET PROTECTION INSTALLATION Cits 1. SEE PLAN VIEW FOR -LOCATION OF CULVERT INLET PROTECTION. 2. SEE ROCK SOCK DESIGN DETAIL FOR ROCK GRADATION REQUIREMENTS AND JOINTING DETAIL. CULVERT INLET PROTECTION MAINTENANCE NOTES 1. INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BAPS SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMPS AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPS IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPS HAVE FAILED. REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF THE CULVERT SHALL BE REMOVED WHEN THE SEDIMENT DEPTH IS )i THE HEIGHT OF THE ROCK SOCK. 5. CULVERT INLET PROTECTION SHALL REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED AND APPROVED BY THE LOCK JURISDICTION. (DETAILS ADAPTED FROU NIRDRA COLOMoo, NOT WAIVeIL N AUTDCIt) NOTE: MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED, Initials: MEC I I Date: I Comments: I Initials: 09/182020 1ISSUE FOR 60% REVIEW I MEC 11/062020 ISSUE FOR 95% REVIEW MEG Version: 2020 Scale. ASNOTED Unit: Engfeh 1 1 04/132021 I ISSUE FOR 100% REVIEW I MEC ¼)'. T N •. :er 40776 r" .O. ss'ONAL aG WELD COUNTY PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. 80832-0758 PHONE: 97D) 3564000 FAX: (970) 304-6497 INLET PROTECTION MAINTENANCE NOT I. INSPECT BMPS EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BMPS SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMP, AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMP, IN EFFECTIVE OPERATING CONDITION. INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPS HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF INLET PROTECTION SHALL BE REMOVED AS NECESSARY TO MAINTAIN BMP EFFECTIVENESS, TYPICALLY WHEN STORAGE VOLUME REACHES 50% OF CAPACITY, A DEPTH OF 6" WHEN SILT FENCE IS USED. OR Ys OF THE HEIGHT FOR STRAW BALES. S. INLET PROTECTION IS TO REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED UNLESS THE LOCAL JURISDICTION APPROVES EARLIER REMOVAL OF INLET PROTECTION IN STREETS. 6. WHEN INLET PROTECTION AT AREA INLETS IS REMOVED, THE DISTURBED AREA SHALL BE COVERED WITH TOP SOIL. SEEDED AND MULCHED, OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION. (DRNL ADMTm Fti TONN of PIANER. caoftAeo RID CITY of AURORA COLORoo. NOT M'.NABLE IN MROCAO) NOTEl MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCO STANDARD DETAILS CONSULT WITH LOCK JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. NOTE. THE DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL METHODS OF INLET PROTECTION IN THE DENVER METROPOLITAN AREA. THERE ARE MANY PROPRIETARY INLET PROTECTION METHODS ON THE MARKET. UDFCD NEITHER ENDORSES NOR DISCOURAGES USE OF PROPRIETARY INLET PROTECTION; HOWEVER. IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWAP AND THE BMP MUST BE INSTALLED AND MAINTAINED AS SHOWN IN THE MANUFACTURER'S DETAILS. NOTE" SOME MUNICIPALITIES DISCOURAGE OR PROHIBIT THE USE OF STRAW BALES FOR INLET PROTECTION. CHECK WITH LOCAL JURISDICTION TO DETERMINE IF STRAW BALE INLET PROTECTION IS ACCEPTABLE. WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Revisions. EROSION CONTROL DETAILS Revised. Designer: ETN Detailer: MEC Void. Sheet Sunset: IS1eetSuSet Project No./Code 3313c Drawing Number CE1.9 Sheet Number 23 of 92 Vehicle Tracking Control (VTC) SM4 SM-0 Vehicle Tracking Control (VTC) VTC VTC CM TR SEE PUN AfW FOR O CONSTRUCTIONuNEN ENTRNal$CE(S)/( -TYPE F TS(S)(S) -TNSE Ur CONSTRUCTION ENTRMCEIS)/EMLS(5) (WIDI/LwMOUT WHEEL WASH, CONSTRUCTOR MAT OR TfB1), 2 CONSTRUCTION MAT OR TRM STABILIZED CONSTRUCTION ENTRANCES ME ONLY TO BE USED 014 SHORT DURATION PROJECTS (i*RCALLY RANGING FROM A WEEK TO A MONTH) DISTURBED AREA WHERE THERE WILL BE LIMITED `VEHICULAR ACCESS. CONSTRUCTION SITE. lo.S MM_ STABILIZED STORAGE AREA 3. A STABILIZED CONSTRUCTION ENTRWCE/ENT SHAJ. BE LOCATED AT ALL ACCESS POINTS ® OR STALING AREA WHERE VEHICLES ACCESS THE CONSTRUCTION SITE FROM PALED RCHT-OF-WAYS. EXISTING PAVED A STABILIZED CONSTRUCTION ENTRANCE/EXIT SHALL BE INSTALLED PRIOR TO ANY LAND ROADWAY - CONSTRUCTION MATS, WOVEN OR TRM DISTURBING ACTVTRS. MN 5 A NON -WOVEN CEOTEXTILL FABRIC SELL BE PLACED UNDER THE STABWZED —"" -- CONSTRUCTION ENTRANCE/EXIT PRIOR TO THE PLCEaIENT 0G ROCK 6. UNLESS OTHERWISE SPECTFKD BY LOCAL JNRSOICtION. ROCK SMALL CONSIST Of DOT SECT #703, MSHn) 93 COARSE AGLREGAtE OR 6- (MNUS) ROCK. eIABI USED c0ws1jc 1.0N NrjjA'-'CE/fxii MaNIENAucE NOTES I INSPECr BMPA EACH WORKDAY• AND MAINTAIN THEM IN EFTECIM OPERATING CONDITION I ' MAINTENANCE Of BMPP SHOULD 8E PROACTIVE, NOT REACTIVE. INSPECT BMPF AS SOON AS dF50 SPIKES OR POSSIBLE (AND •LWAVS WITHIN 24 HOURS) FGLJGWINL A STORM THAT CAUSES SURFACE i BTAKES EROSION. MD PERFORM NCCF55MY MAINTENANCE �A(;� 2 FREOUENt OBSERVAMINS MO MNNTEMNICE ME NECESSARY TO MAMTAW BNPa IN ,LO •1' OVERLAP OTM EFFECTIVE OPEMTINL CONDITION INSPECTIONS MD CORRECTIVE MEASURES SHOULD BE ~.LAO SPIKES OR STAKES DOCUMENTED 1HOR000HLY. y < 11A CR TTURD REMNRCEMEN N STRM J. WHERE BMPs HAVE FAILED. REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON SF.,.N Mitt (IMO) CONNECTORS DISCOVERY O THEo FAILURE. 4. ROCK SHALL BE RE APPLIED OR REGRADED AS NECESSMY TO THE STABILIZED CONSTRUCTION WT ENO ENTRMCE/E,IT TO MAINTAIN A CONSISTENT DEPTH. DISRTRMP ACCESS TO SIDES GF MAT CONEK ORSTH 5 SEDIMENT TRACKED ONTO PAYED ROADS IS TO BE RETJOYEO THROUGHOUT THE MAY AND yi Al THE END OF THE DAY BY SHOVEUNC OR SWEEPING. SEOMENT MAY NOT BE WASHED N. DOWN STORM SEWER DRAINS. 2GI• OR AS R60UPED REOLBRATE BOLE: ARMY JURIsaCuOIs HAVE BMP OETNIS THAT MOT FROM UOfW STANDARD DETAILS. TO JO AS CONSULT WITH LOCH. JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN CICOMM Al DIFFERENCES ME NOTED TRAEr1C (MOTH aWRWi MNr01 rWM on Or WCppania MUIRAND. left WWINl N NNNbl CM th LESS IF 1 CONSL. YEWCLEY ARE ONLY CONFINED ON BOTH SLOES) VTC-3. VEHICLE TRACKING CONTROL W/ CONSTRUCTION MAT OR TURF REINFORCEMENT MAT (TRM) November 2010 Urban Drainage and Flood Control District VTC-5 VTC-6 [kainDra nag Flood ria DiaVNovember 2010 N 1 40776 Urban Slnrm Drainage Criteria Manual Volume 3 nn ••, ban Urban $IOn11 Drainage Criteria Manual Volume ? 4 -W p0�• mss/GNAT ECG\ Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08/312020 Initials MEG Date, Comments. Initials. MASTER DRAINAGE PLAN EROSION CONTROL DETAILS PUBLIC WORKS DEPARTMENT No Revisions 3313c Last Modified Date. 3/102021 Initials. MEC 09/182020 ISSUE FOR 60% REVIEW MEC 1111 H. STREET Full Path. vo nc WELD COUNTY u LC WORKS ANA 11/062020 ISSUE FOR 95% REVIEW MEG P.O. BOX 758 CO. 80632-0758B PHONE. 970) 3564000 Revised Designer. ETN Drawin Number CE 1.10 Drawing FileName'. 3313C-0E-ECP-DET-00.DWGG0.EELEV, 03/122021 ISSUE FOR 100% REVIEW MEC Detaller. MEC FAX ( 70) 304-6497 void Sheet Number 25 of 92 AutoCAOVerslon: 2020 Scale: AS NOTED Units: English 04/132021 ISSUE FOR 100%REVIEW MEC Sheet Subset Sheet Subset. Pat'. Concrete Washout Area (CWA) MM -1 ■ 0CM KMCL£ TRC'NING CONTROL (SEE VTC OETAy) ON OTHER STABLE SURFACE CONCRETE WASHOUT AREA PLAN 12 TN CDNPACrED BEAN ARd1ND 24 THE PEEHI Ir R hOPE uMDIs1uAE1EG(oA COMPACTED SOA VEHICLL TRACKING e X B MIN. J CONTROL (SEE VIC SECTION A DETAIL ) CWA-1. CONCRETE WASHOUT AREA COE INSTMIATpI NOTES I. SEE PLATT NEW F. -CWA INSIALIATION LOCAT^A_N 2. 00 NOT LOCATE AN UNLINED CWA NITHN 400 OF /WY PNIUWL DRNNfr& PATHWAY OR WA!ERSODY. DO NOT LOCATE WITHIN 1000OF ANY WELLS OR DRINKING WATER SOURCES IF SITE CONSTRAINTS MAKE THIS INFEASIBLE, OR n IRGHLY PERMEABLE SOILS EXIST ON SITE, THE CWA MUST BE INSTALLED WIN AM IMPERMEABLE LINER (16 ML MIN THICKNESS) OR SURFACE STORAGE ALTEMAT14S USING PREFABRICATED CONCRETE WASHOUT DEW IS OR A LIKED ABO'E GROUND STORAGE ARE SHOULD BE uSED. I THE CWA SHALL BE INSTALLED PRIOR TO CONCRETE PLACEMENT ON SITE 4. CWA SHALL INCLUDE A FLAT SUBSURFACE NT TMV 15 AT LEAST 8' BY 8 SLOPES LEADING 001 OF TIE SUBSURFACE PIT SHALL BE 31 OR FLATTER THE NT SHALL BF AT LEAST 3 DEEP. 5. BERM SURROUNDING SIDES AND BACK OF INC CWA SHALL HAVE MINIMUM HEKArt or 1' 6. VEHICLE TRACKING PAD SHALL BL SLOPED 22 TOWARDS THE CWA. 2 SIGNS SHALL RE PUCED At THE CONSTROCTION ENTMNCE, AT THE CWA AND ELSEWHERE AS NECESSARY tO CLEARLY INDICATE THE LOCATION OF THE CWA TO OPERATORS OF CONCRETE TRUCKS AND PUMP RIGS. B. USE EXCAVATED MATERIAL FOR PERIMETER BERN CCNSTRUCTpN. November 2(111) I Irhan Drainage and Flood CNnnrul District CWA-3 Urban STom1 Drainage ('Mena Manual Volume 3 Intormation Index of Revisions WELD Initials MEC Date Comments. Imeals IC IMS MEC 09/18/2020 ISSUE FOR 60% REVIEW MEG K °' 11AM020 ISSUE FOR 95% REVIEW MEC r-0O.DWO 03/1212021 ISSUE FOR 100% REVIEW MEC TOTED unAs'. Engbsh 04/13/2021 ISSUE FOR 100% REVIEW MEC 11WA MAINTENANCE NOTES 1, INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BHP, SHOULD BE PROACTIVE. NOT REACTIVE. INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN EIMP9 IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3 WHERE BMP, HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 THE CWA SHALL BE REPAIRED, CLEANED, OR ENLARGED AS NECESSARY TO MAINTAIN CAPACITY FOR CONCRETE WASTE, CONCRETE MATERIALS, ACCUMULATED IN PIT, SHALL BE REMOVED ONCE THE MATERIALS HAVE REACHED A DEPTH OF 2. 5. CONCRETE WASHOUT WATER. WASTED PIECES OF CONCRETE AND ALL OTHER DEBRIS IN THE SUBSURFACE PIT SHALL BE TRANSPORTED FROM THE JOB SITE IN A WATER -TIGHT CONTAINER AND DISPOSED OF PROPERLY. 6. THE CWA SHALL REMAIN IN PLACE UNTIL ALL CONCRETE FOR THE PROJECT IS PLACED. 7 WHEN THE CWA IS REMOVED. COVER THE DISTURBED AREA WITH TOP SOIL, SEED AND MULCH OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION, (OCTML ADAPTED FROM DOUGLAS COUNTY, COLORADO MID Tilt CITY Of PARKER. COLORADO. NET AVAILABLE Pd AUTOGIO). NOTE. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICT)ONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. PUBLIC WORKS DEPARTMENT lilt H. STREET P.O. BOX 758 GREELEY, CO 80632-0758 PHONE. (870) 3564ODO FAX (970)304-6497 WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Rev ions EROSION CONTROL DETAILS Rewsed Designer. ETN Void I Detailer MEC I I I 40776 "'• • • • W SSZONAL ��G Project No./Code 3313c Drawng Number CE1.11 Sheet Subset Sheet Number 26 of 92 Full Path. 2020 Sale (SCL) 'K' X 1$• X 16• (MIN) WOODEN STAKE -iF 9• DIAMETER (MIN) SEDIMENT CONTROL LOG �• 4' MAX CENTER (Tv�' NOTES: FLOW .�nFDML I'' LARGER DIAMETER � SEDIMENT CONTROL LOGS MAY NEED TO BE EMBEDDED DEEPER. 2. PLACE LOG AGAINST SIDEWALK OR BACK OF CURB WHEN ADJACENT TO THESE FEATURES TRENCHED SEDIMENT CONTROL LOG Lr_ENTEI: 'JAKE IN CUNTRUL LUG TE. E•FAVATEfl I.9* DIAMETER (MIN) T -E`. H •II. .- - SEDIMENT CONTROL LOC K 01AM. SCL (FAN) II 6' SECTION TRENCHED SEDIMENT CONTROL LOG 9" DIAMETER (MIN) SEDIMENT CONTROL LOG 12" OVERLAP LOG JOINTS Index of Revisions • 1)y' • 19• MIN) WOODEN STAKE Initials. MEC 09/182020 ISSUE FOR 60% REVIEW MEC IKS MASTER NAC 11/062020 ISSUE FOR 95% REVIEW MEC "-0O.DWG 03/122021 ISSUE FOR 100% REVIEW MEC OTED Units En¢sh 04/132021 ISSUE FOR 100% REVIEW MEG )IMENT CONTROL LOG INSTALLATION NOTES SEE PLAN VIEW FOR LOCATION AND LENGTH OF SEDIMENT CONTROL LOGS 2. SEDIMENT CONTROL LOGS THAT ACT AS A PERIMETER CONTROL SHALL BE INSTALLED PRIOR TO ANY UPGRADIENT LAND -DISTURBING ACTIVITIES. 3. SEDIMENT CONTROL LOGS SHALL CONSIST OF STRAW. COMPOST, EXCELSIOR OR COCONUT FIBER, AND SHALL BE FREE OF ANY NOXIOUS WEED SEEDS OR DEFECTS INCLUDING RIPS. HOLES AND OBVIOUS WEAR. 4. SEDIMENT CONTROL LOGS MAY BE USED AS SMALL CHECK DAMS IN DITCHES AND SWALES HOWEVER, THEY SHOULD NOT BE USED IN PERENNIAL STREAMS 5. IT IS RECOMMENDED THAT SEDIMENT CONTROL LOGS BE TRENCHED INTO THE GROUND TO A DEPTH OF APPROXIMATELY A OF THE DIAMETER OF THE LOG. IF TRENCHING TO THIS DEPTH IS NOT FEASIBLE AND/OR DESIRABLE (SHORT TERM INSTALLATION WITH DESIRE NOT TO DAMAGE LANDSCAPE) A LESSER TRENCHING DEPTH MAY BE ACCEPTABLE WITH MORE ROBUST STAKING. COMPOST LOGS THAT ARE B LB/FT 00 NOT NEED TO BE TRENCHED, 6. THE UPHILL SIDE OF THE SEDIMENT CONTROL LOG SHALL BE BACKFILLEO WITH SOIL OR FILTER MATERIAL THAT IS FREE OF ROCKS AND DEBRIS. THE SOIL SHALL BE TIGHTLY COMPACTED INTO THE SHAPE OF A RIGHT TRIANGLE USING A SHOVEL OR WEIGHTED LAWN ROLLER OR BLOWN IN PLACE. 7. FOLLOW MANUFACTURERSGUIDANCE FOR STAKING. IF MANUFACTURERS' INSTRUCTIONS DO NOT SPECIFY SPACING, STAKES SHALL BE PLACED ON 4' CENTERS AND EMBEDDED A MINIMUM OF 6• INTO THE GROUND. 3. OF THE STAKE SHALL PROTRUDE FROM THE TOP OF THE LOC. STAKES THAT ARE BROKEN PRIOR TO INSTALLATION SHALL BE REPLACED. COMPOST LOGS SHOULD BE STAKED 10' ON CENTER. SEDIMENT CONTROL LOG MAINTENANCE NOTES 1. INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMPB AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION. AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPB IN EFFECTIVE OPERATING CONDITION. INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPB HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INrRATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF SEDIMENT CONTROL LOG SHALL BE REMOVED AS NEEDED TO MAINTAIN FUNCTIONALITY OF THE BMP. TYPICALLY WHEN DEPTH OF ACCUMULATED SEDIMENTS IS APPROXIMATELY ) OF THE HEIGHT OF THE SEDIMENT CONTROL LOG. 5. SEDIMENT CONTROL LOG SHALL BE REMOVED AT THE END OF CONSTRUCTION.COMPOST FROM COMPOST LOGS MAY BE LEFT IN PLACE AS LONG AS BAGS ARE REMOVED AND THE AREA SEEDED. IF DISTURBED AREAS EXIST AFTER REMOVAL, THEY SHALL BE COVERED WITH 70P SOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION. (OEr*LS AOAPrm FROM TOME OF PARKER. COLORADO. JEFr[RSON COUNT'. COLORADO, DOIJOAS COLAvrf. COLORADO. AND CRY OF MAWRA COLORADO. NOT AVAILABLE IN AUTOCAD) NOTE: MANY JURISDICTIONS HAVE BMP DETAILS THAI VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED WELD COUNTY PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. 80832-0758 PHONE -.(970)358-4000 - . - FAX (b70)30484B7 WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Revisions EROSION CONTROL DETAILS Revised Designer ETN Detailer MEC Void Sheet Subset Sheet Subset REG) 40776 SO 14 0• 70NA L E_.rm'' Project No./Code 3313c Draveng Numbet CE1.12 Sheet Number 27 of 92 SHEET 36 , SHEET 29 ��' I SHEET 7 S T35 /" / v i S30 I /- - ISHE T31 I \_ I S ET 38 I 47 'S T32 - -- ---- SHEET 39 1 \ SHEET 40 - r— - - - - - — - - - ter.._ - t---- - - �-h _ \, i L-- II I a EFL 33 I ig I ISHEET41 SHEET 4465,,I, MATCHLINE SEE THSHEET Computer File Information Index of Revisions WELD COUNTY lion Date: 08/312020 Initial'. MEC Date: Comments. Initials'. Nodeeo Date: 3182021 Initial: MEC 09/182020 ISSUE FOR 60% REVIEW MEC x PUBLIC WORKS DEPARTMENT No Revisicna'. 1111 H. STREET 'am: VUal3cWsDcaH1y PUBUC iORKS wsTrq qfrJacr 1 IAW020 ISSUE FOR g5% REVIEW MEC P.O. BOX 758 1X1Revised: GREELEY• CO. 632-0758 ing Fge Name'. 3313C-01-GRP-0O.DWG 031122021 ISSUE FOR 100% REVIEW MEC PHONE: (870)358-9/00 :AD Version: 2020 Scale: AS NOTED Unils: English 04/132021 ISSUE FOR100%REVIEW MEC - FAX: (870)3048187 void: GRADING AND DIWNAGE NOTES 1, CONTRACTOR TO FlEM VERIFY ALL EXISTING UNDERGROUND UTLIilES PRIOR TO CONSTRUCTION. REFER TO GENERAL NOTES FOR UTLITY LOCATION AND PROTECTION. 2. REFER TO HORIZONTAL CONTROL PLAN FOR FURTHER INFORMATION PERTNNNG TO CURB A GUTTER. CHASES. AM DRAINAGE PANS. 3. CONTRACTOR IS RESPONSIBLE FOR RESTORING ALL DISTURBED AREAS TO THEIR ORIGINAL CONDITIONS, 4 ALL SPOT EIEVATIONK ARE TO FINISHED GRADE OR FLOWLINE UNLESS OTHERWISE SPECIFIED. 5. IF WALLS SHOWN, TO OEWTES THE FIWHEO GRACE ADACENT TO THE HK SIDE OF THE WALL. BO DEWTES THE FlNBIREO GRADEAbMCe1T TO THE LQ461DE OF THE WALL. MATCHLINE SEE THIS SHEET WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN OVERALL GRADING & DRAINAGE PLAN Designer: ETN Detaller. MEC Sheet Subset: Sheet Subset: is KEYMAP N.1.6 T. Ar EN 40776 rn• :41 ?�:?�` ,Sn •........... Project No./Code 3313c Drawing Number C1.0 Sheet Number 28 of 92 -INLET 1A TYPE C INLET PER COOT DETAIL W/ CLOSE MESH GRATE N4074�1.63 E 222390.85 Last Modified Date. 4/162021 Initials MEC Full Palh: vin cWELD CCUN r w iS MASTER ORAN, P1 AMAWS Drawing File Name3313C-01-GRP-01.DWG AutaCAD Versmn'. 2020 Scale: AS NOTED Units: SEE SHEET 52 FOR PLAN AND PROFILE OF OUTLET PIPE 47 -EL= 4655.33 MEG NAIL 4655.10 4915.19 Index of Revisions Date Comments. Initials 09/182020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC 03/122021 ISSUE FOR 100% REVIEW MEC 04/132021 ISSUE FOR 100% REVIEW MEC ` I EXISTING DRAINAGE FLOWLINE SMALL PIPE HEADWALL :D1.O N 407372.12 PROTECT EXISTING RIPRAP E 222313.58 4651.6SFL rYS1.O ME �4y51.B6 ME / r4911.0 ME f-4911.16 ME ,.s- .y_y.a_..y:...>_.:y a...,f._..=~--...y_...>_4...�_... 0664 4653 4e64.x NE PROPOSED DRAINAGE FLOWIJNE �f\\\\\ vo 465].70 ME p 4913.73 ME EXISTING EDGE OF DRIVE PATH WELD .IN/.I.n EXISTING BOTTOM OF POND PUBLIC WORKS DEPARTMENT No Revisions. 1111 H. STREET P.O. GREELEY. BOX 758 CO. S0632-0758 Revised. PHONE: �70) ) 356-4000 FAX ( 306491 Void U ` THIS SHEET Li KEYMAP Nis e4077 ul = w 1n 7 0 20 40 Feet WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN 3313c Designer ETN Drawing Number CI.1 Detailer MEC Sheet Subset'. Sheet Subset: Sheet Number 29 of 92 a_1_.1L_ IS71_ WI_ WI Z J =I I I I I I I VVO POND 1: WO WSEL=4653.17 r__'..r� r4851.10 ME >448^5 N11.07 ME 1 1 4153.79 ME x`3.43 ME 05325 4653.39 ME 465 m 4952.83 ME PROPOSED DRAINAGE FLOWIJNE EXISTING EDGE OF DRIVE PATH EMERGENCY SPILLWAY I_ 2 _ PROTECT EXISTING RIPRAP IN PLACE r 48502]ME 1r -4a5028 ME rlfi51.00 ME 4653.' 3 4652.55 ME 4152.74 ME EXISTING BOTTOM OF POND EXISTING PROPERTY LINE TEMPORARILY REMOVE, REGRADE AND RESET EXISTING RIP RAP 4652.14 ME 4853.46 ME 4653.33 ME 4454.000 E 4654080E 4653.]8 ME v 464960 FL WO POND1 1144 CD1.1 OUTLET STRUCTURE _.. •`�-..'i-... � N407010.31 E 222309.18 : 4853.89 ME ----------- ----7 SEE SHEET 46 FOR PLAN AND 44 ME PROFILE OF OUTLET PIPE 4653.49 ME 4653.25 4653.71 ME 552.85 n uc 0.50% SMALL PIPE HEADWALL 1.OJwi MIN. 3'z3 8" D50 RIPRAP N 407010.20 E 222267.50 ft THIS SHEET NH Q ` KEYMAP it y N.ie ' 40776 `,,: I0NAL E� Cinrf� 0 20 40 Fee' Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN Project NoJCode Creetlon Date: 08/312020 Initials. MEG Date: Comments: Innals m, PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY. CO. 617632-0758 PHONE: 970) 356-4000 � \ FAX: 1970)304-6487 No Revisions. 3313c 1tModified Date: 41162021 Initials: MEC 09/16/2020 ISSUE FOR60%REVIEW MEC Fui Path: yr L cr 11/06/2020 ISSUE FOR 95% REVIEW MEC Revised: Designer ETN Drawn g Number C1.2 Drawing Fie Name. 3313C-01-GRP-0I.DWG n9 03/122021 ISSUE FOR iDOk REVIEW MEC Detailer: MEC Void: Shoat Number 30 of 92 AMOCAD Verson: 2020 Scde: AS NOTED Unit: English 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset Last N ,65].1I ME 4853.88 ME d 465]39 ME J 465331 EXISTING CONCRETE PAN GROUTED RIP RAP CD1.S RUNDOWN MIN. 15•Lx10W 465]21 ME 48-EL=4653.25 MEG NAIL ME If4 FL y,. \y_ y. ME .IIlhlk. WATER QUALITY POND 2 45431 MEC - "erg - ....y_ m5, PROTECT EXISTING FENCE „ _.._. ..... _ 4653.35 ME EXISTING EDGE OF GRAVEL ACCESS ROAD EXISTING PROPERTY UNE I ntormatlon Index of Revisions Initials. MEC Date: Comments: Initlal6 Initials'. MEC 09,18/2020 ISSUE FOR 60% REVIEW MEC 03/122021 ISSUE FOR 100% REVIEW MEC 04/132021 ISSUE FOR 100% REVIEW MEC / DRAINAGE FLOW JNE EXISTING POND BOTTOM 1 EXISTING CONCRETE PAN • EXISTING INLET EXISTING CULVERT EXISTING EDGE OF ASPHALT EXISTING EDGE / OF GRAVEL \\\\\\YYY 4652.37 ME NSy 4852.1] ME 0. -- 4550.60 FL e i-..-a 4661_ M.25MEJ _ _ �— 41411153.100ME 3.06 ME 4652.]9 ME 4d THIS SHEET O T. • 40776 SS�0NAL E?n a �t EXISTING EDGE I H\,� 1 OF WATER \ \ - \• " j- 0 20 40 ,�D Feet WELD COUNTY PUBLIC WORKS DEPARTMENT No Revitione: 1111 H. STREET P.O. BOX 808 Revised: G PHONE: 356400055 PHONE: 60) 04-4000 FAX: ( O) 301497 Void: WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN I Detailer. MEC Project No./Code 3313c Dravdn0 Number C1.3 Sheet Number 31 of 92 EXISTING CONCRETE PAN 40-EL=4652.98 I MEGMAIL I EXISTING INLET EXISTING CULVERT I EXISTING EDGE OF ASPHALT N W EXISTING EDGE w I OF GRAVEL N I w w "52.37 ME -\ I 115213 -,--- �-----�%--- 656. 4652 I 4652.75 ME - - - -_�� 4653.99ME 485 I EXISTING EDGE / OF WATER \ z. \ - EDGE OF ASPHALT -EDGE OF EXISTING GRAVEL 452.45 ME- -' GROUTED RIP RAP 465235—, CD1.J RUNDOWN MIN. 4652.24 ME 1SL610'W _— r 465234ME_ :1°"/ 4652.39 ME - ' - 1'—_'— N52.2S . � _ 4fi52.14 i "52.29 -----------'—_ ter_ 4653 13) rqJe TOP OF BERM / 4653.29 ME EXISTING EDGE 46x336 ME —'OF GRAVEL ROAD EXIST! i 4652.16 4852.15 ME TOP OF BERM 4652.15 ME i ' i . 4651'79 — __ ' I 7 i / / WATER QUALITY POND 2 BOTTOM OF POND DRAINAGE FLOWLINE 465409 ME U O I ILTHIS SHEET 1 I X P I KEYMAP NTB Sit Pip Q,p•oO..Ea/sl ~ 40776 N` aW , 'Co cs9/0NAL �aG w U_ I \t _ 4N.11 ME — - 18" CONC FES TOP OF BERM W/ TOE WALL I a. NG EDGE OF WATER / PER DETAIL 2 ON CD1.0 Loompurer rile Inrormation Index of Revisions WELD COUNTY bon Dale: 08/312020 Initials: MEC Data Comment: !noels. ni PUBLIC 1WORKS DEPARTMENT P.O. OX76iii H. T 8 GREELEY, CO. 80632-0758 _ PHONE: (870)3584000 FAX. (870) 304S497 No Revisions: Modified Date: 4/16/2021 Inials: MEC 09/182020 ISSUE FOR 60% REVIEW MEC Path: v 3+ewL Mn a 11/062020 ISSUEFOR 95% REVIEW MEC Revised. tg File Name: 3313C-01-GRP-01DW3 03/122021 ISSUE FOR 100% REVIEW MEC voiB. CAD Verson: 2020 Scale: AS NOTED Units: Eng4sn 04/132021 ISSUE FOR 100% REVIEW MEG N 406498.17 E 222205.77 0 20 40 _L11]:�. ! •fah Feel WELD COUNTY PUBLIC WORKS Project No. /Code MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN 3313c Designer: ETN Drevdng Number C1.4 Detailer'. MEC Sheet Subset: Sheet Subset. Sheet Number 32 of 92 EXISTING PROPERTY UNE EXISTING CULVERT FUTURE CONCRETE PAN (BY OTHERS) FUTURE RIP RAP RUNDOWN (BY OTHERS) 485200 ME 465125 4'SD MH \�$ PER COOT DETAIL N40649811 E 222326.62 yo SEE SHEET 51 FOR PLAN AND PROFILE OF STORM PIPE 4646.77 Ge x4646.4209 4651.14 EXISTING EDGE OF ASPHALT WQ POND 2. WSEL=4651.09 4650 SMALL PIPE HEADWAL , WI MIN. 3'Lx3W 6" 050 RIPRAP CD1.( N 406290.39 SEE SHEET 53 FOR PLAN AND E 222271.70 PROFILE OF OUTLET PIPE 4654.16 ME-\ 4154.W ME I I_ I 4}EL=4655.61 HUB THIS SHEET _� \1 YMAP • Nta ,r,•o� 1 i 1 1 / ��}? • �\5 T. p WATER QUALITY POND 2 ouTLEr siaucruee CD1.1 i ) ,1 I !, `, �' 40 77 8 E 222264.44 N 406327.21 I 1 I .a,-..6-�2-%+_...a-DIIAI FiDWI�RE 46w.4b FL I I'I Fd+s •••... I I I � I I I i I 1 4852.: —465b I 1 1 a I • v TOP OF BERM s 48tl46 ME 4651.14 4952.53 IN49.11 ME 2 EXISTING EDGE OF WATER 18" CONCIFES EMERGENCY SPILLWAY 4545.58 ME 4849.26 ME WETLANDS AREA: W/ TOE WCD1.2 PROTECT WETLAND ALONG` DETAIL 2 ON CSOUTH BANK OF POND 2. 1 0 20 40 N 406498.17 DO NOT DISTURB AREA E 222205.77 BEYOND WHAT IS SHOWN ON F rret THESE PLANS. Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project NodCode Cream DM9: 08131)2020 Insets. MEC Date. Comments: Initials MASTER DRAINAGE PLAN LaI Mbdried Disc 4/162021 Inieala. MEC 091182020 ISSUE FOR60%REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions DETAILED GRADING & DRAINAGE PLAN 3313c FN u uL 1111 H. STREET 11/0612020 ISSUE FOR 95%REVIEW MEC P.O. BOX 758 Drawn FY Nsnt 3313C-01-GRP-QI.DWG GREELEY. CO. 80832-0758 Re1'MeM Designer: MEC 9Numoer C1.5 p°'4'N7 031122021 ISSUE FOR 100%REVIEW MEC PHONE: `970) 35&4000 Detakr MEC AuWADVereim: 2020 Scale AS NOTED Units:Enp6sh 041132021 ISSUE FOR 100% REVIEW MEG Fes' (G70) 3044497 Void: Sneer Numlx4r 33 of 92 Sheet Subset Snee!Subset. EXISTING FENCE REMOVE AND REPLACE — - — - --AS NECESSARY „,_ vi —a: --.4e w oe�—oi of of ai -. . O3- ?_--pi _. _of Dx�.__vS-- . _.�.MS- _ -.._ 8¢58 EXISTING ELECTRIC EQUIPMENT I' THIS SHEET \ EXISTING EOA EXISTING BOTTOM OF DITCH .\ ------ — 4658.72 ME EXISTING TOP OF DITCH � 4057-72 ME =- _ _ RICAL EQUIPMENT _ _ I 4856.64 ME 485916 ME EXISTING ELECT - — = } Ilj`Ujlli \\\ 485 85 ME 4886.14 485686 0.33% 4650 HTI1 465&26 FL .m 4H:Hi:: -5_• 445&SAWCUT LINE. s—is5774 FL N. . 4856b6 1856.81. - %'� 4857;62 4551Ta -4658 -_ - - - - - 4656.82 ME PROPOSED CURB AND GUTTER 6A I / i m pD REG�s o 40776 4A i to q. 0 0 EL SITE IW App.. ;•24/4l L I I e 0 � a 4 o 0Q I _--- _ ICJ OI o o O O _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ S.., _ _ _ _ _ _ 0 I 20 40 MATCHLINE SEE SHEET 36 I Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creaton Date: 08/312020 Initials: MEC Date. Comments: Initials: MASTER DRAINAGE PLAN Last Modified Dale: 4/162021 Initials. MEC 091182020 ISSUE FOR 60%REVIEW MEC :., . PUBLIC WORKS DEPARTMENT No Revisions: DETAILED GRADING & DRAINAGE PLAN 3313c Fu5P.th-. ° u LC WC 4s 1111 H. STREET 11/06/2020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised. Designer: ETN Drawing File Name: 3313C-01-GRP-0l.DWG GREELEY, CO. 80832-0758 Draning Number C1.6 03/122021 ISSUE FOR 100%REVIEW MEC PHONE: 970)358-40W Detwiler MEC AMaCADVwsion: 2020 Sale: ASNOIED Un5s: En Iisn FAX: (970) 304-6497 Sheet Subset. Sheet Subset Sheet Number 34 of 92 6 04/132021 ISSUE FOR 100h REVIEW MEG void. - —___ r-- o•--oa - - oa 1B°CON6'FES -- �' os oa 04 --n» of m 9a n�a oe oa- o, _ � EXISTING BOTTOM OF DITCH EXISTING TOP OF DITCH_ EXISTING BOTTOM OFD H EXISTING CULVERT PER TDERAlL +v�] SEE SHEET 45 FOR PLAN , i --.------------------1- _ -_-__._ { ..-- - . _ .. ..._ -�TMI PERK DETAIL 2 ONICDRI D .4 AND PROFILE OF PIPES ------ - - - -y._ _ . / EMERGENCY SPIN 1M4Y SEE SHEET 45 FOR PLAN AND N407177.59 COMBINATION INLETIIBAIIRVLYT --- , WITH RIPRAP ARMuri'ING CD1.2 - & SAND/OIL INTERCEPTPR PER CDOT DETAIL 91.11' OF 18' DIP ro fro ro -- - -- THIS SHEET SEE DETAILS ON SHEETS 70 7t- N 407328.83 l N 40734337 E 22281824 -�— --- f'-' -.---------------- -�- N4073421137 �— —}— } _. _____ 4157,11 ' '-- ae5eK7 ... n; 4es7.1s_ ._to--ro-_—Fo®B50% F Fo Fe Fu-- FO re- r°— ass r� �— —FO tBE . , . 4854851E 7.8 4157.I6FL --_ � 485705 �BS].O ME 485).17 ME W= W_____ —ier --i. __ 'R`- ® 40 MAD 4O57.77ME 0 1 4658.00N5a1p O 4057.78 ME .yam 0 ,'C Lbr 4O57j8 FL __ _ 4658 _ aI - - I N1 4057.39 4658 - .. 465 --rrJt N ,PR - .�' G> —IRR ® P iRB �. 65rp1 414715 4057.18 •r• �p.F •—" �I • 4858 ' . 4658 . 1 4057.70 F1 .. G .•.._H_.4_..+_*_ ..—.... ... �_ .— ... 0. 485).Ba ME ISE IXISTI WATER POND B' WSEL 4&57.73 EXISTING FENCE - , I VALVE TO FINISHED GRADE '•1 4556 I 4857.56 ME a57 4888.SME KEYMAP I `� i 488715 ME I n - . 4858--��\\ \\ ^^ 1 y I I 4055.15 FL 4654.82 FL W RED I' 485815 NE 8858]2 ME /S y .60 ME PER CDOT 48Y.00 `•........•, �• � i `. I . 465).80 NE PER COOT DETAIL 4858.01 ME - T, I EXISTING I i I 4O57.Tt ME N407239.74 4857.42 ME I VO ' N • ••• I PROPERTY UNE t I' E222954.3? MIO POND 8 N \ OUTLET STRUCTURE CD1.1 40776 II I t4057.05 ME N407181.84 .. _.. .- _ �. ,., E 22299&06 LU W I - i EXISTING CONCRETE PAN --- l I PRO CT EXISTING PIPES I (w EXISTING EDGE OF ASPHALT AND FENCE LINE. ! 4857.85 ME PROTECT EXISTING FENCE D I. I W y -r.\ CONCRETE PAN5A I U J i- 4857/08 ME Io I I � I I - •� I I 4057q ME L . I t (AW j 1 0 20 40 .I MATCHLINE SEE SHEET 37 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 081312020 Initials: MEC Date. Comments: IniaIs MASTER DRAINAGE PLAN Last Modified Dale: 4/162021 Initial. MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions. DETAILED GRADING & DRAINAGE PLAN 3313c u L 1111 H. STREET Full Path: 11/082020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised Designer. EN Oravnn Numbx C1.7 Dramin8F4aName. 3313C-01-GRP-0I.DWGGREELEE: CO. 80832-0758 B 0111!2021 ISSUE FOR 100% REVIEW MEC PHONE'. (WO) 358.4000 Detaller MEC A4oCAO Verson: 2020 Sde: AS NOTED Uniln: Eng6M 04/1312021 ISSUE FOR 100% REVIEW MEC � FAX: (970)3044497 Void: Sheet Subset Sheet Subset Sheet Number 35 of 92 INLET 1A TYPE C INLET PER COOT DETAIL W/ CLOSE MESH GRATE N 407481.63 E 222390.85 4,::, THIS SHEET 32 ME I O 4W5 ME 4856. ME ' _.. _ ME 4651.16 TG 4656AS ME i V I 46553580 > �� I • •�L._. 165J.16 TG e ° o . I • 4555.2586 . :1 I I�YNIAP S NT,S EVAPORATION I �,pl),•REG/S POND5 ;•• • 1.5.toaYR=4656.03 M U�,..,��,�S T N'•.rF tz U •F • PROTECT I2 776• N. EXISTING N • • 16s5.29ea V FENCE w A ••. � W 965T.16 TG IC) • I Z FS ;......... �• 6 NAL a xI J I� I EXISTING DRAINAGE FLOWUNE FUEL SITE 46 3d b I 4656.11 ME - - 4656 e6 ME 4656.07 ME 465M2 TG 1656.62 FL 465616 FL Np I 4651.16 ME SAND/SALT SHED 4:1 �3 4657.71 ME I _ In MATCHLINE SEE SHEET 37 0 20 40 _ to Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 08/312020 Initials MEC Date Comments. Initials. MASTER DRAINAGE PLAN Last Modified Date. 4/162021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC n... ' PUBLIC WORKS DEPARTMENT No Revisions. DETAILED GRADING & DRAINAGE PLAN 3313c vmuCwELD CouJTv u L Wo NS MASTER DRAMAGE 1110. BOX 58 Full Path. 11/062020 ISSUE FOR 95°5 REVIEW MEC P.O. BOX 758 Revised. Designer ETN Drawn Drawing File Name: 3313C-01-GRP-01.DWG100% GREELEY, CO. 356-2-0758 9 Number C7.8 03/122027 ISSUE FOR REVIEW MEC PHONE: (f870)358-4000 Detailer. MEC (8'i0) 3048187 Void. Sheet Number 36 of 92 AutoCAD Version: 2020 Sale. AS NOTED Unas: EngYsh 04/732021 ISSUE FOR 100% REVIEW MEC Sheet Subset. Sheet Subset. MAT0AH I4E SEE-S1-i T ! MATCHLINE SEE THIS SHEE r 110 0, I SANDISALT SHED I I I I I I I �. L�RMTG � THISHEET. .' ME 48S65fi BG M5$.565.5fi BG 6:1 4657.ro FL • . /I PROPR EVAPORATION _ 0 III I E PROPERTY UNE 465e3aT j I ) � POND 5 FUEL SITE I PROPOSED CURB AND GUTTER 1B 1 I .Sx100.VR=4656.03' - - - - I - - kI KEVMAP FUEL SITE I I NIB �pO0..REGisr GRADE BREAK l . I N �0:' �6\S T. .. p ••F (M Im O•'t' .tn W N: 7.t 16 , 1 = 49s5.7y B 2 -k----4856.70TO I LU 40776 rn mm p' /it' NP.5 T0. 4855.74 F 485e.98 ME I IFS •., ,. G\? 4l w — _—. w S/ONAL E� 1z 41501 -FL EVAPORATION Q S . ss6I-Q_ POND 5 t.5x100.VR�658.03' 1 . . 4651._ 1 . 4&fiJ.A] OB HI: _ 4657.13 ME 4657.52 I EXISTING DRAINAGE I EXISTING CONCRETE PAN FLOWLINE I I o I I I I ( I LT SHED I -- —__ •_ —r -- -- —.I 0 20 40 lCH I E SEE THIS EET _ Faet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creaaon Date: 06/312020 Initials. MEC Date: Comments: Initial MASTER DRAINAGE PLAN Last Modified Date: 4/162021 Initials: MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC n„ PUBLIC WORKS DEPARTMENT No Revisions: DETAILED GRADING & DRAINAGE PLAN 3313c Full Path: ° 3r wPUBLORKS MASTERRn NAGE 1111 H. STREET 11/082020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised Designer: ETN Oravdn Number C1.B Drawing FdaName. 3313C-01-GRPO1.DWGGRHONEEELEY 970355-4000 B 03112!2021 ISSUE FOR 100% REVIEW MEC r PMONE: ((870) 358.4000 Deteiler. MEC AuloCAD Version: 2020 Scale: AS NOTED Units: English 04/132021 ISSUE FOR 100% REVIEW MEG FAX: (B70)304a497 Void Sheet Subset. Sheet Subset Sheet Number 37 of 92 DINGS AND C IINGS AND OUNDS C. 4' SD PER CDOT DET N 406601 E 223212 ___ ___ ___ ___ 3Zfi3DF1Y 21 QQQ� 0 20 40 y` Feet a THIS SHEET 1 uKEe'MAP • • •• O? N,\S 1.4. •..1 40776 `n L MATCHUNE SEE SHEET 39 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN Project No. /Code Creation Date. 08/312020 Initial'. MEG Date: Comments'. Initial. PUBLIC WORKS DEPARTMENT 7117 H. STREET P.O. BOX 758 GREELEY, CO. 00832-0758O PHONE: (870) 356-4000 FAX: (870) 304-6497 No Revisions Lass Modified Date: 4(162021 Initials MEC 3313c 0 8 /1 820 20 ISSUE FOR 80% REVIEW MEC Ful Path : vu u 11/082020 ISSUE FOR 95% REVIEW MEC Revised Designer'. ETN Orev4n Number 01.10 Oresing Fge Nana: 3313C-01-GRP-0I.DWG 03/122021 ISSUE FOR 100% REVIEW MEO Detwiler MEC Void AWaCA0 Veregn: 2020 Scat: AS NOTED Unit: Englh Sheet Number 38 of 92 04/13 2021 ISSUE FOR 100% REVIEW MEC Sheet Subset: Sheet Subset: MATCHLINE SEE SHEET 38 4SD MFI PER CDOT DETAIL I l . N 408601.11 E 223212.50 I .,. I BUILDINGS AND I r" c-2 GROUNDS • 40.51A2 ME I � 42M3 OF 1T PVC FUTURE EXPANSION OF BUILDINGS AND GROUNDS \ I F- 011 0% ` SE SHEET SHEET54 (FOR REFERENCE ONLY, DESIGN AND CONSTRUCTION BY OTHERS) \\ I THIS SHEET PIPE HEADWALL ' ` W 001.0 vaMIN. TIx4WRIPRAP ' '' \ `\ N 40325.98 �' \\ E 2232805.99 / / I N EYMP '- d'5 byo \ \ APPROXIMATE LOCATION OF FUTURE BUILDING ,' 1 s, :1Si : ' � \ EXPANSION FOR BUILDINGS AND GROUNDS / p .t.` T. `� \\ Fl �' (CONSTRUCTION AND DESIGN BY OTHERS) .' % \\ `� \` h- \\ \\ 15" CONC FES U TOE WALL ...40776 N & MIN.6'Lx6W6"O50 RIPRAP i \\ \` \\ V1p7 POND 3: `\ `\ PER DETAIL 2 ON 001.0 �.1 \ WSEL 4652.16 \ \ \N 406531.78 .E O • W 415327G0 \ \\ A, \\ s\ \\\ � `\ E\223218.36 j � sS •...........NG\°i' SEE SHEET 53 FOR`\ 'J1 .a ' mv, 5.\\ \ - PROPERTY LINE \ TYPE C INLET3C I TONAL PLAN AND PROFILE ` \ \\ \\ \ •' PER COOT DETAIL OF OUTLET PIPE \ \ \ `. 1 M8 `\ c . _ \ N4512.93 - I \ \\\ ,. ( ,,J ` . E'223360.52. I. 46.63'OF12'PVC . - . . . . . . . 730 \ \ 4&53.12 i''� . 'O yy 4532.tlR - 2f 4652.93 40.5].12 ' i'i' (j� 4652.95 i' ... 465x.e .' ..g.W OF -15' RCP. . . . . . . . . . . . . . �. I 52J3ME CD1.2 OUTLET STRUCTURE - I -� 4es2.as NE N 406525.98 STORM DRAIN 3C GONNECTTO'EXIS'T-4.3ON M-- .37N SEE SHEET 54 FOR PLAN AND PROFLLE I CORE DRILL & GROUT 40.62M ME -- - N406W5.12- -- I E 223166.66 _-_ - ._ _ _. - -- __ _ _ EXISTING CULVERT - _ _ �yEE \_ - 4652.94 I 4' SD MH -_ EMERGENCY SPILLWAY PER COOT DETAIL I CD1.2 W/ RIPRAP ARMORING FUTURE CONCRETE N 406506.21 ? 1 ' PAN (BY OTHERS) E 223280.82 - I 1 I Ii .I. 2,6°b f 1 1 * 1 0 20 40 b Feet T rl Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creabo Date: 03/312020 Initials MEC Date. Comments' Initiate MASTER DRAINAGE PLAN Last Modified Date 4/162021 Initials MEC 09/182020 ISSUE FOR 60%REVIEW MEC PUBLIC WORKS DEPARTMENT No Revision.: DETAILED GRADING & DRAINAGE PLAN FW Patt M 1111 H. STREET 3313c 11/06/2020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Des1 nei Drawn N Dc *1 Fig Name' 3313L-01-GRP-0I.OWG GREELEE (SM)30632-0758 Revised 9 EEG p umber C1.11 09 03H22021 ISSUE FOR 100%REVIEW MEC PHONE:070) 3 58.4000 Detailer MEC AubCADVegs : 2020 6e9N: AS NOTED 1.64: Enp sh 04/132021 ISSUE FOR 100% REVIEW MEC FAX' ( 70) 3046187 Void- Sheet Subset Sheet Subset Sheet Number 39 of 92 0 I- LU uJ I U) W LU U) W z Q BUILDINGS AND AND I I EXISTING EDGE - OF ASPHALT / 485325 NE r I I./ % ....... .. . \ ti... ill // THIS SHEET J KEYMAP n.TS REel T. •. • 40776 hi Ao��ss�0NAL I --��'-pK---=�,_ ._ t 4653 __._ '1 `465442GB EXISTING TOP OF POND Il -- Ee -e___,rt_� BERM —.._ 4654.14FL . __TINGE._ . ---�_ EXISTING EDGEE OF WATER __ _ \ _ ,,z ----S-.--.— —`— nom, --� � N. 5].11] FL I I 4654.11 ME f0 20 40 MATCHLINE SEE SHEET 42 '� Feet 4654." ME Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 08/312020 Initials: MEC Date: Comments: InibSs: MASTER DRAINAGE PLAN Last Modified Date: 4/162021 Initials_ MEC 0911/12020 ISSUE FOR 50% REVIEW MEC '. ��,, PUBLIC WORKS DEPARTMENT Na Revisions DETAILED GRADING & DRAINAGE PLAN 3313c FUII Path c Urr w,Gs 1171 H. STREET 11/06Deci ner ETN 2020 ISSUE FOR 95%REVIEW MEC P.O. B 7511 Revised B Drawing File Name: 3313C-01-GRP-0I.DW13 GREELE0632-0758 Drawing Number C1.12 03/122021 ISSUE FOR 100% REVIEW MEC PHONE; CO.CO.OX (870) 3564OW Detader. MEC AutocAD Vereion: 2020 Sole: AS NOTED Units'; Enlisn FAX: (970)3048407 Void g 04/1321121 ISSUE FOR 100%REVIEW MEC Sheet Subset Sheet Sunset Sheet Number 40 of 92 O H H w w U) W w U) w Z J S U H Q -flRA39-LINED SWALE - - EXISTING EDGE �� / / EXISTINGEDGE OF PAVEMENT 'OF PAVEMENT IBSI.W ME _— 165420 ME . _-- __... l ME� _ 4654Z"E WATER DUALITY SWALE 7 4654.11 EXISTING EDGE OF WATER .gTF :4J ku [E I :,iJ r..e1D 465].76 GROUTED RIPRAP RUNDOWN MIN. 18'Lx13W .CD1 WATER QUAUTY SWALE 7 EXISTING CULVERT 882 FL \ -\NJJ E�I f ; I 226F1 /If I ME -X EXISTING CU VERT- EXISTING OUTLET STRUCTURE— I I I •� N � e o w PROTECT EXISTING FENCE N !LZ wL" �KS].BE NE A. 1854. ]MEC _---- -d I THIS SHEET KEYMAP I r N. IS poD...• ... moo: `�5 T. 40776 N; ASS/ONAL ECG\ EXISTING EDGE OF WATER MATCHLINE SEE SHEET 41 'o 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED GRADING & DRAINAGE PLAN Project No./Code Creation Date: 08/312020 Initials: MEC Date. Comments. Imeals. -;-,;-: „ _ PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY. CO. 806332-0758 PHONE: 870) 3564000 FAX: (170)304-6497 No Revisions. 3313c Last Modified Date: 4/162021 Initialer MEC 09/182020 ISSUE FOR 60% REVIEW MEC Futl Path: v I3 WELD 11A762020 ISSUE FOR 95% REVIEW MEC Revised: Designer. ETN Drawm g Number C1.t4 Dmwing File Name 3313C-01-GRP-0I.DWG 03/122021 ISSUE FOR 100%REVIEW MEC Detwiler. MEC AutaCADVerson: 2020 Scale: AS NOTED Ut: Engieh Void: Sheet Number 42 of 92 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset: EXISTING 4' \ ` EXISTING DRAINAGE FLOWLJNE CONCRETE PANS —et' -\ E EXISTING RCP PI nnMcxnn - / - -i'- / �� 1850.40 ME � / /ice'-.IY.y� '>.� 1 / i K5a.26 y � <, I THIS SHEET , / DRAINAGE FLOW LINE ,`.., ./ 4853.1]ME� %� 'Y� y�`� \`` \ 9652.00 "✓ yam. ` y..':,. 4ssa:-:tKEVMAP 1 A ` 455123F1 �. � I Op RE��s y, s T. ,,:. CONCRETE PAN 4 » •.� `. ` I . / N 40776 co: / 11 Y` O�`-••-.... V• •• \�� `'..,, N. I SS�ONAL �'aG LOT -3 GREELEY SADDLE CLUB SUB. � 7 / 'ssY REC*4176309 I = 1-26-2016 \� fn W 4653.89 ME i* \� IUD \ I 50-EL=4651.78 #5 REBAR 9651.89 ME __ — — __ EXISTING PROPERTY LINE I I 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 08/312020 Initials MEC Data: Comments: Initials MASTER DRAINAGE PLAN Last Moidmd Date: 4/162021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions DETAILED GRADING & DRAINAGE PLAN 3313t 1111 H. STREET Fufi Path: V 1 ° 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised. Designer. ETN Dravnng Number C1.15 Orewi Fga Name: 3313C-01-GRP-01.DVvG GREELEY. 97DCO. 80632-0758 8-4OOO n9 031122021 ISSUE FOR 100%REVIEW MEC _ PHONE:1870) 356000 Detailer' MEC AutoCAD Version: 2020 Scale: AS NOTED Units: English 04/132021 ISSUE FOR 100% REVIEW MEC FAX (9970)304-6497 Void: Sheet Subset Sheet Subset: Sheet Number 43 of 92 49-EL=4649 96 �� N4 REBAR F DRAINAGE FLOWLINE --`�r4649.54 NE WI w (CI 2 I I I I I I I I I CDT5 i Y GROUTED RIPRAP RUNDOWN MIN. 15'Lx13W EXISTING 13OTTOM OF DITCH E I IST IN(, D@AIH4GE I! i L..H -•`` EXISTING TOP OF 4646.67 FL I I \ `� Y \ I 4647.10 FL\ \ ..'. 1 \ Y I ` I I 1 � DRAINAGE FLOWLINE ci I I 4646]0 l TOP OF POND i WO POND4 / f BOTTOM OF POND WSEL 4648.39 I I 4646.56 FL 4S4e I 4x616 4646.71 ME 4550.11 ME' / i / Initials. mtu Oate. Comments Initials r' Initials: MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC lexs MASTER onwce 1 110 62 0 2 0 ISSUE FOR 95% REVIEW MEG .DWG 03/122021 ISSUE FOR 100% REVIEW MEC NOTED Units. English 04/132021 ISSUE FOR 100% REVIEW MEC POND 4 11.1 OUTLI=T STRUCTURE N 405444.65 E 223447.51 464612 ME ME ` \ 4647.74 ME EXISTING ` PROPERTY �\ Y LINE 1\ 0 \\ \ \ SMALL PIPE HEADWALL Y CD1.D W? MIN. 3'x3' 6050 RIPRAP N405413.55 E223434.76 EXISTING PROPERTY LINE EXISTING TOP OF DITCH SEE SHEET 46 FOR PLAN AND -- PROFILE OF OUTLET PIPE \ "�•�,__ 1 EMERGENCY SPILLWAY CD1.Z WITH RIPRAP ARMORING _ COUNTY PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. 80632-0758 PHONE'. (970) 356-4000 FAX: (970) 304-6497 THIS SHEET KEVMAP N.T8 T. 40776 N? 'ONA L 3S 0 20 40 Feet WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN No Revisions DETAILED GRADING & DRAINAGE PLAN 3313c Revised Designer ETN Drawing Number C1.16 Detaller MEC Void Sheet Subset Sheet Subset Sheet Number 44 of 92 H STREET FUEL STATION STA 17 18 CONC FES N407177.59 � E 223031.48 STA 11+72.77 STA 9+98.15 STA 10+06.20 POND 6 OUTLET STRUCTURE SAND/OIL INTERCEPTOR TYPED INLET EXISTING CULVERT N 407181.84 N 407335.39 N407328.93 E 222996.06 4 //- E 222914.18 E 222918.28 `I STA-1+14.65 - WATER LINE POND B •WSEL + -. - ': CRBfi61NG ---1,fA01 38 ?4 4657.73 - E 222954.37 , Dry �i „ f' 4 94.11' h k OF 1 ' KEBMAP @050 IPN _ - 1 Ye 658 67'OF .68 OF 16"RCP 93 STA 3+022 i..if @ 0.50 DIP I 052% COMBINATION INLET 1I4N 407343.37CTRIC U E57CROSSING E222811.25 CROSSI - 6658 30 COMBINATION INLET 5TA 3+D2.2D RIM / FL ELEV= 4857.22 u°i INV. OUT=4655.98(S) M a w WO POND 6 PROFILE HORIZ I'=30' ZN 2we SANDIOIL INTERCEPTOR J II Z 4665 STA. 8+88.15 . RIM / FL ELEV=4656,88 d f �u n bo INN. IN=4655.94(N) iyM d 0 m INV. OUT =4855.84 (SE) I 4660 EXISTING GROUND 4660 — — — — — — — - --03'48--- -- --- o ......... r 94 LF OF 16 4655 \ O��e/�,. A-\�•\S T. Ar 4655 -0.497( LF OF 18 RCP Q 0.5 4655 .r/y PROPOSED GRADE 40776 iA 8 LF OF 6" PVC 0.5 TYPED INLET EXISTING ELECTRIC ONE STA. 10+06.19 TO BE LOWERED 10 ON EXISTING IRRIGATION LINE 1.RIME FL ELEV= 465Z.16 EITHER SIDE OF PIPE TO BE LOWERED 10 ON �• :\W •B LF OF -B"PVC .Q40% 4W..IN+4655.73(NW) EITHER SIDE OF PIPE F '•... EXISTING WATER-LIN.Y 4650 4650 o Y N 6 m q ^ w r ro A GLN CESTER OF COLORADO _____ CALL 2-SU81NESS DAYS IN ADVANCE 2+00 2+50 3+00 3+50 4+00 4+50 5+00 BEFORE YOU on, GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creston Dale. 08/31/2020 Initials MEC Date Comments Initials MASTER DRAINAGE PLAN Last Mobdretl Date. 3/12/2021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC .K... PUBLIC WORKS DEPARTMENT No Revisions WO POND 6 PLAN & PROFILE 3313c Fu®Palk YI I I uN PUBLIC KS MAST 1111 H. STREET Designer pLmmAws 11/0612020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revlsetl 9 ETN Dravnn N Dram fie Name 3313C-00.S7M-0O.DWG GREELEY. CO. 80632-0758 B umber 01.17 R9 03/122021 ISSUE FOR 100% REVIEW MEC PHONE'. ((970) 356-4000 Delaller MEC AMOCAO Versa': 2020 Ssvk'. AS NOTED Unils. Engish 04/1312021 ISSUE FOR 100% REVIEW MEC [.•' y..Sheet FAX ' (970) 3045497 Void Subset Sheet Subsat Sheet Number 45 Of 92 : ._ 41168 OF 12' 9+8t—� I 7 I R � �I-'es__-__ STA. 1O+16.83—' SMALL PIPE HEADWALL N 407010.20 ry E727267.50 'i„ j m / STA. 10*58:51 POND I OUTLET STRUCTURE N 407010.31 E 222309.18 Feet I POND 4: WSEL 4648.3 J�J ,Y• STA. 10+01.25 POND 4 OUTLET STRUCTURE N 405444.85 E 223447.51 STA. 10+35.05 SMALL PIPE HEADWALL N 405413.55 E 223434.76 N L ST 0 a 0 60 Feet WO POND 1 OUTLET PROFILE HORIZ:1"=30' N VERT: 1" = 6' LU WO POND 4 OUTLET PROFILE „ HORIIZi:1"=30' a w 4655 u " vE465g,=6, 4660 _ .. 3-_ w ... m 4660 u 6 u PROPOSED GRADE m o> a s aima� EXISTING rc uoi EXISTING GROUND w O a N �m P GROUND Fh n r Cow ao _ Z 0 ONo _ 4655 __ -------- --- ---- min 4650 RE §N z oHa 4655 4650 s� PROPOSED -0.89% / GRADE 40776 '": 34 LF OF IT PVC 0.50% O !� 4645 4650 - 4650 - 4645 3. ?�4u 4649 4649 �s8/ONAL iNG` 42 LI OF ITPVC Q 0.50% 4642 4642 n $ CALL UTILITY NOTIFICATION ry m CENTER OF COLORADO O O a 0 - CALL 2 -BUSINESS DAYS IN ADVANCE BE FORE YOU DID. GRADE, OR EXCA VA YE 0+50 1+00 1+50 FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project NoJCode Creation Dale: 08/312020 Iniials: MEC Date. Comment: Initials. MASTER DRAINAGE PLAN Last Modified Date. 3/122021 Initial: MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions: WO POND 1 & 4 OUTLET PLAN & PROFILE 33130 FuM Path: V ` L DUN u L c M _ 1111 H. STREET Fl amA'MnR 11/062020 ISSUE FOR 95% REVIEW MEC \ P.O. BOX 75B Designer: ETN OmAdrlg FYe Name: 3313C-0O.OWG- GREELEY. CO. 80632-0758 Revised: 9 Droving Number 01.16 03/12/2021 ISSUE FOR 100%REVIEW MEC PHONE: ((870) 356-4000 Detailer: MEC Au10CAD Version: 2020 Se AS NOTED Unit: Fngish 04/732021 ISSUE FOR 100% REVIEW MEG FAX' (970) 304-6487 Void'. Sheet Subset Sheet Subset Sheet Number 46 of 92 a ; 4651 I X . 4650 SEE SHEET 51 FOR PLAN AND PROFILE WQ POND 2 WSEL 4651.09 STA 1+16.92 dM14Y I.��F 77N05*OW41"W IF .J m Q 6 m a om nZ 4oN WQ POND 2 PROFILE STA. 0+00 TO 3+50 18" RCP CROSSING / \ PROPOSED GRADE 0.50% / - - - - - - - - - - - - - - - J EXISTING GROUND) m n 0 w 0- a a AM: UWS1IEUEU Imnal6' IMtU Date: Comments: Inibak' lifted Data: 3/12/2021 Inibak: MEC 00/182020 ISSUE FOR 60% REVIEW MEC ' 11/062020 ISSUE FOR 95% REVIEW MEC Fla Name: 3313C-00-STM-OO.DWG 031122021 ISSUE FOR 100% REVIEW MEG )Version: 2020 Scale: AS NOTED Unite: English 04/132021 ISSUE FOR 100% REVIEW MEC 0.50% N 242903W, fi/ HORIZ: 1" = 30' VERT: 1" = 6' \ I - --r LU 4651.'\ 46' W W ¼ -E- FZW4 W z U F)9 i KEVMAP U I Nce 0 30 60 Feet j --r _ F— g4ecn C/) LU UO F` to U) 4 " : " 40776 `n W z o� . U d/ONAL ECG\ 4640 CALL UTILITY NOTIFICATION CENTER OFCOLORADO o� a a CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG, GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND 3+00 3+50 4+00 MEMBER UTILITIES WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN ".:., PUBLIC WORKS DEPARTMENT 1111 H. SIR EET P.O. BOX 758 GREELEY, CO. 80832-0758 ♦ PHONE: (970) 358-4000 FAX: (870)304-6497 No Revisions: WO POND 2 STA. 0+00 TO 3+50 PLAN & PROFILE 3313c Revised: Designer: EN I Drawing Number C1.19 Detailer'. MEC Void'. Sheet Number 47 of 92 Sheet Subset Sheet Subset r W {�- W WI W CO Ui Z) J N 28.02'33" E, 4655 - - PROPOSED GRADE UN W 7 -EXISTING GROD W 1 4650 W W _. _.. - -- -- - - ---...... - - 4648 W Z A U U N N 4+50 5+00 5+50 Last File Nana: Initials: STA 10+16.83 SMALL PIPE HEADWALL N 407010.20 E 222287.50 TT:Y 3 N 412 ....,_ LL O _ b N 118.24' STA 10+58.51- - POND 1 OUTLET STRUCTURE N 40701031 E 222309.18 WQ POND 1 AND 2 PROFILE STA. 3+50 TO 7+50 Index of Revisions Date'. Comments. Initials 08/182020 ISSUE FOR 60% REVIEW MEC 11/0612020 ISSUE FOR 95% REVIEW MEC 03/122021 ISSUE FOR 100% REVIEW MEC 04/132021 ISSUE FOR 100% REVIEW MEC WO PONDI WSEL 4653.17 HORIZ: 1" 30' VERT: 1" 6' II 0) LU ° r.Q 1n .._. •rn LU Z KEYMAP �. C NTs t, 0 30 60 O) V ' -_--------- - OUTLET STRUCTURE W 1 2 __ - - _ W W _ _ _ Z W rD a G N F n In 6+00 6+50 7+00 7+50 8+00 WELD COUNTY PUBLIC WORKS DEPARTMENT No Revisions'. 1111 H. STREET _ .In P.O. GREELEY, BOX 758 CO. 80632-0758 Revised'. PHONE: 870) 356-4000 FAX. (970) 3046497 Void: WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN WO POND 1 & 2 STA 3+50 TO 7+50 PLAN & PROFILE Designer: ETN Detailer: MEC 40776 ��- CALL UTILITY NOTIFICATION CENTER OF COLORADO YrA CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG. GRADE, OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Project No./Code 3313c Draveng Number C1.20 Sheet Number 48 of 92 4665 sr - __ -_--- .--___ W 2 W _— --A653 Z I - yfiMi Jn 651 x Y � a , WQ POND I PROFILE STA. 7+50 TO 11+50 -STA. 2+37.77 SMALL PIPE HEADWALL ,N 407372.12 E 222313.58 11+00 t _ r 0 ({ SJSq 1'rt'0, 1 KEYMAP 7i22 11. 1 N.iA - ALD 11. STA. 1+0174- 0 30 60 HORIZ'. 1" = 30 Feet VERT. 1" = 6 4665 a'� Y 4660 Lu m w 4660 = g $ q EXISTING GROUND to �,9 'ow _�_ LU a LU (ow 'ow —_��__ —_—_ to r 4655 w 4655 Z 4 1; _ EXISTING GROUND E- 0.50% a 4650 EXISTINGGROUND 4650 Qp........ PROPOSED GRADE �UO�C' 4648 4648 om 40776 (A O 0 p N ap "0. • t •. 0- a u. a 8S/O11I ��G 8+50 9+00 9+50 10+00 10+50 11+00 11 +50 CALL UTILITY NOTIFICATION CENTER OF COLORADO CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG. GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale. 08/312020 Inibat MEG Date Comments. Initial MASTER DRAINAGE PLAN Last Modified Dale. 3/1212021 Initial: MEC 0&182020 ISSUE FOR 60% REVIEW MEC : -♦ Into PUBLIC WORKS DEPARTMENT No Revisions WO POND 1 STA. 7+50 TO 11+50 PLAN & PROFILE 3313c FN PaO:° r uN °L K 1111 H. STREET Pt AnflRAwlMiS t t/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised D"Agnel ETN Orawng Number C1.21 Dtawi File Neme 3313C-00-STM-0O.DWG PHONE: (070356-2-0758 729 03/12!2021 ISSUE FOR t00h REVIEW MEC PHONE'. CO. 606 2-00 Detaller MEC AUIoCAD Vefwn' 2020 SWe: AS NOTED Unit: En1-'u 04/132021 ISSUE FOR100%REVIEW MEC FAX. (970) 304-6497 Void Sheet Subset Sheet Subset Sheet Number 49 of 92 .. j ____ ___ __ 1+00 2+00 3+00 — _ I _ — — b'"^� —. I — — I— S 34.39.55 E. 420.17' .h , _ -- _ — 4 H' _____4 y OD RE�� + KEV _AP r. '' s� N Tb .°�? ��s 76 4Cs'••....•....• t9 s�DNA O' 0 30 EVAPORATION POND PROFILE HORI2:1"=30' 4660 \ - ------....__ _ _.... --_.____ —_ __. _ _._........ \ __.__— _... ___— -. __ __—_ r--___ _._ .. 4660 EXISTING GROUND \ — — — — — — — — — — — — — — — — — — — — — p7•— - 0.10% 0.10% - 4655 -- -- 4655 PROPOSED GRADE 4650 -- _. __ _ _.. ,4650 n o^ m ut n m m m m m y a F I q g� In m q g 1 tai g N n q gt a 1 Ya d a to y g a l , a a a n a D a 0- 0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 CALL UTILITY NOTIFICATION CENTER OF COLORADO rrr CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU on, GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08(31/2020 Initials: MEC Data: Comments. Initials MASTER DRAINAGE PLAN EVAPORATION POND PLAN & PROFILE PUBLIC WORKS DEPARTMENT 1111 H. STREET No Revisions: 3313c Last Modified Date: 31122021 Initials- MEG 09/182020 ISSUEFOR 60% REVIEW MEC Full Path: v' ° 1 V062020 ISSUE FOR 95%REVIEW MEC V a≥2Ir_'97PHONE: P.O. BOX 758 GREELEY. CO. 632-0750 (970) 35 356-4000 FAX'. '97D' 3044497 Revised. Designee ETN Drlsviny Number C1.22 Drawing File Name: 3313C-0OSTM-OO.OWG 03/122021 ISSUE FOR 100% REVIEW MEG Detaile[ MEG Void . AuIoCAD Version: 2020 Sde: AS NOTED Units: Enggsh 0 4 /1 3 2021 ISSUE FOR 100%REVIEW MEC Sheet Number 50 of 92 Sheet Subset: Sheet Subset I SEA 0+51.96 18" CONC FES N 406498.17 E 222205.77 w UZ a II O� 2 4855 a i m 4650 1- -C II 4845 --__- 4640 0+50 Last Modified Date. D,awin9 File Narm AutOCAD Verson: OF 18RCP 1 EXIST 4• SO MH STA. 4+23.01 N. U RIM / FL ELEV= 4652.19 1 ( INV. OUT=4647.03(Mry _ y, 2+00 ___4+�--_ - 2501E EXIST 78' HOPE ® 0.03% - KEYMAP 4' 8D MH N.TB STA 1+72.81 4• SO MH 0 30 60 RIM 7 FL ELEV= 4650.52 Feet INV IN =4646.94(E) INV OUT = 4646.94 (W) e o e x.wns W>�>O O v V~iK22 PROPOSED GRADE 41.7 121 LF CTF'l RClS`6V N — , , / r1 b{ n AI le a a 1+00 1+50 2+00 Information Index of Revisions Initials MEG Date Comments. Initials Initials MEC 09/18(2020 ISSUE FOR 60% REVIEW MEC RKS MASTER DRPAPACE 11062020 ISSUE FOR 95% REVIEW MEC DWG 03)122021 ISSUE FOR 100% REVIEW MEC DOTED Units. English 04/132021 ISSUE FOR 100% REVIEW MEC RETENTION POND SD PROFILE HOR + o0 4655 EwsnrNo DRour4D _.--_-___---- _ :-------- -------------- - -- 250LFOFEXIST1 HDPEG0.03% _--- _-- .- fl --18 - - - -- - - = Y - -- _ _. - - - - - - - - - U.H - - - - m m a o 2+50 3+00 WELD COUNTY ma PUBLIC WORKS DEPARTMENT No Revisions. 7111 H. STREET P.O. BOX 758 Revised GREELEY, CO. 80632-0758 r PHONE: (970) 3SS4000 FAX-. (970) 304.8407 Void 1 Nil (Nil a I � 3+50 4+00 WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN RETENTION POND SO PLAN 8 PROFILE Designer EN Detailer MEG Sheet Subset Sheet Subset 4650 �V: • VAS T. a••�F if rT 40776 `R 8/0NAL 464L CALL UTILITY NOTIFICATION CENTER OF COLORADO CALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG. GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Project No./Code 3313c Drawing Number C1.23 Sheet Number 51 of 92 STA. 1+03.74 TYPE C INLET f C N 407481.63 E 222390.65 �.\ w STA 2+37.77 ' SMALL PIPE HEADWALL N407372.12 E22231358 S KEYMAP 1 NT.e ELECTRICAL CONDUIT CROSSING WQ POND 1 INLET SD PROFILE 0 30 60 EXISTING ELECTRIC nw5 UNE TO BE LOWERED 10' F et ON EITHER SIDE OF PIPE O + j EXISTING GROUND w m w wo am n z HyyORIZ: 1" = 30 4660 i - - m y RE ��—_ ��: •\,\STN' �` 4655 — 4655 r� • �w� 40776 Tn : PVC � 2.0095 _ __ - .. per:• �� PROPOSED GRADE ts 4650 4650 m r n m CALL UTILITY NOTIFICATION CENTER OFCOLORADO d b -- CALL 2 -BUSINESS DAYS IN 1+50 2+00 BEFORE YOU DIG, GRADE, OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 061312020 Initials. MEC Date. Comments. Inibals MASTER DRAINAGE PLAN Last Modified Date: 3/1212021 Initials: MEC OW162020 ISSUE FOR 60% REVIEW MEG - PUBLIC WORKS DEPARTMENT No Revisions. WD POND I INLET PLAN & PROFILE 3313c 1111 H. STREET Full Path: 11/062020 ISSUE FOR 95% REVIEW MEC %.- P.O. BOX 756 Designer: EN GREELEY, CO, 60632-0750 Rnac evisetl: il Drewinp Number Cl24 Drawing File Naha: 33130-00STM-OO.DWG 03/122021 ISSUE FOR IRO%REVIEW MEC PHONE'.?70)356-4000 Retailer MEC AutoCAD Version: 2020 Seale: AS NOTED Untie: En gliah 04/132021 ISSUE FOR 100% REVIEW MEG FAX 197013W-6487 Void: Sheet Number 52 of 92 Sheet Subset: Sheet Subset. Full Path N E • ft/s I STA 12+41.64 r SMALL PIPE HEADWALL, N 406558.98, E 223295'69 / -- STA. to+oo.00 POND 3 OUTLET STRUCTURE \ N 406525.98 \\ E 223208.37 \\ \ STA 10+81.99 15"CONCFES \ \\N406531.79' \ F� 223218.35 STA SMALL PIPE HEAD DWALL WAIL N 406290.39 E 222271.70 .. ._ -_---• - - STA 10+42.44 EXIST4'SDMH N 406505.12 - - E 223166.66 WQ POND 3 OUTLET PROFILE WQ POND 2 OUTLET SD PROFILE g PROPOSED GRADE 4660 f° 4660 N J u K N_ Ur� NaLL Z J j SsSs� awm .4—w0 4655 4655 4655 a 4655 �w 3 Omrc_ s> _ I _ O rOK?N __ XI _— ESTNG GRADE 4650 // 4650 4650 4650 __�. — — _ PROPOSED GRADE 47 LF OF 12' P VC 0433.37% EXISTING GRADE 38 LF OF 17' PVC fg .24% 4645 4645 4645 - --- - 4645 nil 1+50 Date Commenm. Initials 08/162020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC 03/12/2021 ISSUE FOR 100% REVIEW MEC 04/132021 I ISSUE FOR 100% REVIEW I MEC WELD COUNTY PUBLIC WORKS DEPARTMENT No Rensions 1111 H. STREETP.O. Revise !GREELEY, BOX 75B CO. 80832-0758PHONE:I(B7�1)56.4000 *10 -•:Vol_ FAX: 997700 KEYMAP NT6 0 30 60 Feet WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN WO PONDS 2£ 3 OUTLET PLAN & PROFILE Designer ETN Detailer MEC Sheet Subset Sheet Subset. " 40776 Ao. •• ;?mow SSIONAL ECG CALL UTILITY NOTIFICATION CENTER OF COLORADO 'aCALL 2 -BUSINESS DAYS IN ADVANCE BEFORE YOU DIG. GRADE. OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Project No./Code 3313c Dravving Number C1.25 Sheet Number 53 of 92 STA 10+42.44 "^ / \ \ EXIST 4' SD MH \ \ STA 12+41.64 N 406505.12 \ SMALL PIPE HEADWALL �m. E 223166.66 \ N 406558.98 A \ \E223205.99 _ IL .6 2.61 pA STA 11+99.01 --. 2+63 OB'}72 4' SD MH 2'W N 406801.11 / E 223212.50 I G / / STA 10+01. E 22 99 STA 10*80.47 q,(�/ 15" CONC-FES TYPE C INLET E22321836 36 O 32. N 406676.51 / .• ••- -E 223280.57 •l ii S KEVMAP I STA 10+69.49 A >> 4' SD MH m m ' '� ' i pp0,....... .. '..� N 406506 0 t X .21 �, T. He'.TtC E223280.82 -o • E " 40776 `1 STORM DRAIN 3A J a m �i s/DNA L O HmH a HORIL I"=30Sntjm 4660 - VERT:1"=6' W W Wm 4fi60 zmzu� a+awe II II 7 _ -. -4 . Q O> PROPOSED GRADE 4655 -- — ---- _ 4655 EXISTING 3ROUNo •• — --- 109 LF OF 12' PVC. 1.50% 4650 _. _... ... _ _.._ •••• i.:.r.irhVC 01.70%.... _ 4650 •0 30 Gtr Feet 4645 4645 4'SDMH m Nr Ix m STA 11+99.00 CALL UTILITY NOTIFICATION 'r' 4' SD MH h N CENTER OF COLORADO .� 0 RIM/FLELEV=4854.19 g R b I D. INV IN=4649.82(NE) T D. ad a a INVOUT=4649.82(S) CALL 2 -BUSINESS DAYS IN ADVANCE 10+50 11+00 11+50 12+00 12+50 BEFORE YOU D. GRADE, OR EXCAVATE FOR THE MARKING OF UNDERGROUND MEMBER UTILITIES Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code CreationDate: 08/312020 IniUela. MEC Date: Comment: Initials MASTER DRAINAGE PLAN Last Modified Dace: 31722021 Ini6aIs: MEG 09/16/2020 ISSUE FOR 60% REVIEW MEC ,,., PUBLIC WORKS DEPARTMENT No Revisions: STORM 3A PLAN B PROFILE 3313c FuN Peld: V3]I3CWELDCOUNTY PUBLIC WCWCS ItASIEN AJNGE 1171 H. BTREET 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Devi nen Doming Foe Name: 3313C-0O-STM-OO.DWG GREELEE: CO. 80832-0758 Reviself. B ETN Drawing Number 01.25 03/122021 ISSUE FOR 100% REVIEW MEC PHONE: (970) 356-4000 Detwiler: MEC (9701 304-6497 ANIDCAO Verson: 2020 Se: AS NOTED IMRs: Engish 04/132021 ISSUE FOR 100% REVIEW MEC j'FAX Void. Sheet Subset. Sheet Subset: Sheet Number 54 of 92 �� - - -- - FUTURE EXPANSION OF BUILDINGS AND GROUNDS ` (FOR REFERENCE ONLY. DESIGN AND CONSTF CTIOBY OTHERS) N. \ SEA. 10+01.99 \ \ 1S' CONC FES N 406531.79`• STA. 10+69.49 \ \F�223218.36 `. 4. SD MH \ N 406506.21 6htp•\ '� E 223280.82 // i\ OOh, 19 Bit" Q Q Q I1+49.42 TYPE C INLET N 406512.93 E 223350.52 p0 REGIS 776 Oi S/ONAL E� KEYM/1P iI_ ::iil 4655 50 145 a: Ue131r2wu Initials: MEC Date: Comments Initials Date. 1292021 Initials: MEC 09/162020 ISSUE FOR 60% REVIEW MEC UC *tLD caaJTy 1 ,w I(S MASTER c. AMflRA 111062020 ISSUE FOR 95% REVIEW MEC Name: 3313CG1STM-XSS-0O.DWG 031122021 ISSUE FOR 100% REVIEW MEC rsion. 2020 Scale: ASNOTED Ut: Engksh 041132021 ISSUE FOR 100% REVIEW MEC WELD COUNTY PUBLIC WORKS DEPARTMENT No Revisions 1111 H. STREET �g P.O. GREELEY. BOX 758 CO. 80632-0758 Revised PHONE. 970) 356-4000 - FAX: (970)304-6497 Void 0 40 60 Feet WELD COUNTY PUBLIC WORKS Project No•/Code MASTER DRAINAGE PLAN WO POND 1 CROSS SECTIONS 3313c Designer: ETN Drawing Number C128 Detailer: MEC Sheet Subset Sheet Subset Sheet Number 56 of 92 Last Modifu 4660 4855 4850 4660 4655 4650 4845 HOR: 1"=80 VERT: 1"=8 4660 4680 4655 4855 4650 4650 Inc AAIA HOR. 1"=80' VERT. 1"=8' 4660 4860 1 � 4855 4655 4850 4850 eaee •ase HOR'. 1"=80' VERT 1"=8' 4660 4660 \ 1 nn r r WU' 4655 4655 4650 4650 ANTS LAIC HOR'. 1"=80' VERT 1"=' 4660 -- '1i r r W R 4655 4550 -iu0 -50 0 so 100 -100 -50 0 50 100 - -- -100 -50 0 50 100 -'- '-'-1D0 -50 0 50 100 645 WQ Pond 1-0+00.001 IWQ Pond 1-0+50.001 IWQ Pond 1-1+00.001 IWQ Pond 1- 1+50.001 HOR: 1"=80HOR'. 1"=B0' HOR: 1"=80' HOR: 1"=80' VERT 1"=S' ,e-- VERT: 1"=8' ---- -_-- VERT'. 1"=8' VERT: 1"=8' 4660 4655 4650 4845 \ Y maq 4655 4855 4850 4850 fAC A*AC 1 1 oms ^ V W V LL IWuw WVY 4655 4655 4650 4650 AAAC eaec \ 'mt nR ,uuu Yuou 4655 4655 4850 4650 Aaec eaec • \ \ �a f O mvO I, 0 Ui 4855 4850 -100 -50 0 50 100 -100 -50 0 50 100--� ----100 -50 0 50 100-'- --..-000 -50 0 50 1045 WQ Pond 1-2+00.001 IWQ Pond 1.2+50.001 WQ Pond 1-3+00.001 IWQ Pond 1-3+50.001 HOR 1"=80' VERT: 1'=8' 4680 4655 N � I 4650 4645 -50 0 50 WO Pond 1 - 4+00.00 100645 Computer File Information Index of Revisions 08/312020 Initials MEC Date Comments. Initials Date. 1292021 Initials MEC 09/182020 ISSUE FOR 6D% REVIEW MEC r CGUN�u ` µA - 11/062020 ISSUE FOR 95% REVIEW MEC Name 3313C-01-STM-XSS-00.DWG 03/12/2021 ISSUE FOR 100% REVIEW MEC son 2020 Scale AS NOTED Units'. English 04/132021 ISSUE FOR 100% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions 1111 H. STREET P.O. Box 758 Reviser! GREELEY, CO. 80632-0750 PHONE: 970) 356-4000 d r 0 - • - FAX. 170) 304-6497 Void WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN WO POND 1 CROSS SECTIONS Designer ETN Detailer MEC Sheet Subset Sheet Subset Project No./Code 3313c Drawing Number C1.29 Sheet Number 57 of 92 a: udrelr2u2u Initials: MEC I Date', 1292021 Initials. MEC 1J1 MSTER MMCE Name. 3313C-01-STM-XSS-0O. DWG rsion: 2020 Scale: AS NOTED Unis: Engish N. At,r4 Date: Comments: Initials. 09/182020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC 03/122021 ISSUE FOR 100% REVIEW MEG O4/132021 ISSUE FOR 100% REVIEW MEC I }I • I I •ih / / p O I. HELD COUNTY PUBLIC WORKS DEPARTMENT No Revisions: 1111 N. STREET P.O. BOX 758 GREELEY, CO. 80632-0758 Revised: PHONE: 870) 358.9000 - FAX: ( 70) 304&197 Void: 70 ilaY 1 i I 4t l 0 40 80 Feet WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN WO POND 2 CROSS SECTIONS 3313c Designer: ETN I Drawing Number C1.30 Detailer: MEC Sheet Subset: Sheet Subset Sheet Number 58 of 92 HOR'. 1"=80' HOR: 1"=80HOR. 1"=80' HOW 1"O80' 4660 VERT. 1"=8' 4860 4660 VERT. 1"=8' 4680 4660 VERT. 1"8' 4880 4660 VERT: 1"=8' 4660 4655 4655 4655 4655 4655 4655 4655 4655 4650 4850 4650 4850 4850 4650 4650 4650 4845 4645 4645 4645 4845 4645 4645 4645 -100 -50 0 50 100 -100 -50 0 50 100 -100 -50 0 50 100 -100 -50 0 50 100 WQ Pond 2 - 0+00A0 WQ Pond 2 - 0+50.00 WQ Pond 2 - 1+00.00IWQPond2-1+50.001 HOR 1"8a HOR r=8o' HOR. 1"=80' HOR 1=80 VERT. 1"=8' VERT'. 1"=8' VERT. 1"=8' VERT: 1"=B' 4655 4655 4655 4855 4660 4660 4655 4655 4655 4fi55 4fi 50 4850 4650 4650 4650 4650 4645 4645 4650 4650 4645 4545 4645 0l� 4645 4645 4645 4640 484 4640 0 -100 -50 0 50 10040 4840 0 100 -50 0 50 10 -100 -50 0 50 100 -100 -50 0 50 100 WQ Pond 2 - 2+00.00 WQ Pond 2 - 2+50.00 WQ Pond 2 - 3+00.00 WO Pond 2 - 3+50.00 I-fOR. 1=80 NOn 1"=80' HOR. 1"=80' HOR: 1"=80' VERT 18' VERT 1=8' VERT. 1"=8' VERT: 1"=B' 4655 4655 4655 4655 4655 4655 4655 4655 4650 4650 4650 4850 4850 4650 4650 4650 4645 4645 4645 4845 4645 4645 4645 4845 cjO 4640 4640 4640 4640 4810 4640 4640 4640 -100 -50 0 50 100 -100 REG�sl s0 a so too -100 -50 0 50 100 -100 -50 0 50 100 WQ Pond 2- 4+00.00 WQ Pond 2- 4+50.00 I IWO Pond 2- 5+00.00 I WQ Pond 2- 5+50.001 40776 N s`r10NAL ��G Computer File Information Index of Revisions WELD COUNTY PUBLIC WORKS Creehm Date 08/312020 Initials MEC Date Comments Initials WELD COUNTY MASTER DRAINAGE PLAN Project No. /Code Iasi Modifed Date 1/29/2021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revioonc WQ POND 2 CROSS SECTIONS 3313c v r + t COUNTY Pu i c WVRKs iw 1111 H. STREET Poa Palh. 11/062020 ISSUE FOR 95°A REVIEW MEC P.O. BOX 758 Revised Designer ETN Oraven Number C1.31 Dmvi Fib Nerve 3313C-01-STM-XSS-00,DWG GREELEY, CO. 80632-0758 B e9 03/122021 ISSUE FOR 100% REVIEW MEC PHONE: (970) 358-4000 Detailer MEC AuloCAO Ve'sim 2020 Se: AS NOTED Units English 04/1321121 ISSUE FOR 100% REVIEW MEC FAX. (870) 3048497 Void. Sheet Subset Sheet Subset Sheet Number 59 of 92 ii W I LLLL m� d6 V\` - r \ i'• mm !pmQam W � 4 r y nr r fl r N q a \ 1 � ev r r W LLLLLL m pi 4 N m r r am ewe \ sPn 00 Y HOR: 1"=80' 4660 VERT. 1'8 4880 IO m N 4655 4855 4645 4845 4840 -100 -50 0 50 10040 I WQ Pond 3 - 0+50.00 0 40 80 Feet N FU PURE EXPANSION OF BUILDINGe' AND GR \ ' �� ` (FOR REFERENCE ONLY, DESIGN A TT\ . __ 1+00 -_.__ 40776LJ 0 40 60 i' p'•. t� Feet ••* f . W 2 m \ ss/ONAL ECG Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 00/31)2020 Initate MEC Date: Comments: Initials MASTER DRAINAGE PLAN Last Modified Date. 1292021 Initials MEC 08/182020 ISSUE FOR 60% REVIEW MEC - PUBLIC WORKS DEPARTMENT No Revisions WQ POND 3 CROSS SECTIONS 3313c Fuf Path: V e UN u e 1111 H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC , P.O. BOX 758 Desi ner.ETNDrawing Fae Nana: 3313C-01-STM-XSSAO.DGREELEY, CO. 80632-0758 Revised: 9 MEC Drawing Number C1.32 03/122021 ISSUE FOR 100% REVIEW MEC r PHONE 070)356-g000 Details[ MEC AUNCAD Version: 2020 ScSe; AS NOTED Units: En86sh 04/132021 ISSUE FOR100%REVIEW MEC FAX: (70)304-6497 Void: Sheet Number 60 of 92 Sheet Subset: Sheet Subset'. I/ I I \ 7 REG� TM.. 40776 w 0 40 80 — —� Feet —---�'--------' Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN WO POND 4 CROSS SECTIONS Project No./Code Creation Date: 08131/2020 Initials MEC Date: Comments. Initials + PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 756 GRHONE(PT0 306-4-0758 PHONE- 8O. BO 2.00 - FAX (9701 304b187 No Revisions 3313c Last Medifed Date. 128!2021 Initials MEC 08/1812020 ISSUE FOR 60% REVIEW MEC Fu_ Pam. v� t u r sa Drawi File Nama 3313C-OO1-XSS-OO.DVMi n9 1108!2020 ISSUE FOR 85%REVIEW MEC Revised ..esigner ETN Drarenp Number C7.33 031122021 ISSUE FOR 100%REVIEW MEC Jetager MEC Void Sheet Number 81 of 92 ANoCAD Versa: 2020 Sale. AS NOTED Lift: Engdsh 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset: HOR: 1"=80HOR: 1"=80' HOR: 1"=80' HOR. 1"=80' VERT'. T'=B' VERT: 1"=B' VERT: 1"=8 VERT. t"=8' 4655 4655 4655 4655 4855 4855 4655 4655 4650 4650 4650 4650 4650 4850 4650 4650 4645 4645 4645 4645 4645 4645 4645 4645 4640 4640 4640 4640 4640 4640 46401 -50 0 50 4640 -100 -50 0 50 100 -100 -50 0 50 100 -100 -50 0 50 100 WO Pond 4-1+50.001 WQ Pond 4-2+00.001 IWQ Pond 4-2+50.001 IWQ Pond 4-3+00.001 HOR: T'=80' HOR: 1"=80' HOR: 1"=80' HOR: 1"=80' VERT: 1"=8' VERT: 1'=8' VERT: 1"=8' VERT: 1"=8' 4655 4655 4655 4655 4655 4655 4655 4855 4650 4650 4650 4650 4650 - - 4650 4650 - - 4650 4645 4645 4645 4645 4645 4645 4645 4645 m ci N w w 4640100 -50 0 50 100 4640 4640 -100 -50 0 50 100 4640 4640100 -50 0 50 100 4640 4640100 -50 D 50 100 4640 WQ Pond 4-3+50.001 I WQ Pond 4- 4+00.00 I I WQ Pond 4-4+50.001 I WQ Pond 4- 5+00.00 HOR 1"=80' HOR: 1"=80' HOR: 1"=80' HOR: 1"=80' 4655 VERT: 1"=8' VERT'. 1"=B' VERT: T'=8' VERT'. 1"=8' 4655 4655 4655 4655 4655 4655 4655 4650 4650 4650 4650 4650 4650 4650 4850 4645 4645 4645 4645 4645 4645 4645 4645 OD REG/Sl y '00 4840 4640 4640 4640 4640 4840 4840 4640 U N -100 -50 0 50 100 -100 -50 0 50 100 -100 -50 0 50 100 -100 -50 0 50 100 WQ Pond 4 - 5+50.00 WQ Pond 4 - 6+00.00 WQ Pond4-6+50.00I - 6+50.00 40776 N` WQ Pond 4 - 7+00.00 •1, •, ; � A '., : lu OAF"•.... .: • `?�v 8s/ONAL �aG Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08/312020 Inibets. MEG Date: Comments: Initials MASTER DRAINAGE PLAN Leal Modified Date: 1282021 Ini➢ats: MEC 091182020 ISSUE FOR 60% REVIEW MEC PUBLIC NARKS DEPARTMENT No Revisions: WQ pOND4CRO$55ECTlO NS 3313c WI Path: v l couu 1111 H. STREET 111062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Designer: Dmuing Fle Name: 3313C-0O1-XSS-DO.DVVG GREELEY. CO. 80632.0758 Revised 9 ETN Drawing Number 01.34 031122021 ISSUE FOR 100%REVIEW MEC PHONE: ((970) 356-40% Detailer: MEC AutoCADVersion: 2020 Scale: ASNOTED Units: English 041132021 ISSUE FOR IDO% REVIEW MEC "• - FAX (970)30a-6497 Void: Sheet Number fit of 92 Sheet Subset'. Sheet Subset m m do I w c' nuc' m i$ as$ ItA w� m� m W m LL exx I. Mt mm of of M'F N m in w� v,& rn U z oix n+r• HOR: 1"=80' HOR'. 1"=80' HOR: 1"=80' HOR: 1"=80' VERY 1"=a' --- ---- VERT: 1"=8' -_-- ____ VERT'. 1"=8' VERT 1"=B' ALCC 4660 4855 ARin N NNp Y 4660 4860 4655 4655 ARCn AACn nfl NYI -Tw_ �VVJ 4660 4660 4655 4655 AGCn AfCn i YI Vf woo .uoa 466D 4660 4655 4655 SAC', ARCn ao I(1 N 33 400`. 4660 4655 • -100 -50 0 50 100 -100 -50 0 50 100 - -100 -50 0 50 100 100 -50 0 50 100 650 Evaporation Pond 5- 0+50.00 I Evaporation Pond 5- 1+00.001 Evaporation Pond 5- 1+50.00 Evaporation Pond 5-2+00.001 HOR. i"=80 HOR: 1"=80' HOR. 1"=80 HOR 1"=80' VERT'. 1"=8' VERT'. 1"=8' VERT 1"=8' VERT 1"=8' 4885 4660 4655 ARRn 4865 4885 4860 4660 4655 4655 AA. n sacn 4885 4665 4660 4660 4655 4655 ARRn assn 4665 4665 4660 4660 4655 4655 ACCn AGCf 4865 4860 4655 auu -w U bu 100 -100 -50 0 50 100 --100 -50 0 50 100 -100 -50 0 50 100 850 Evaporation Pond 5 - 2+50.001 I Evaporation Pond 5 - 3+00.00 Evaporation Pond 5 - 3+50.00 I I Evaporation Pond 5 - 4+00.00 I ,DO REC/S� d ••1S T. y'•. 40776 Cfl p. ASS/ONAL �aG Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Croato DDate. 08/312020 Imeala: MEC Data: Comments: Inibab. MASTER DRAINAGE PLAN Last MDdded Date. 1292021 Inibale. MEC 091182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No ReVISIDna EVAPORATION POND 5 CROSS SECTIONS 3313c Fur Path v� ' 1111 H. STREET i 1/082020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Revised Designer. ETN Dreven DraAdng File Name 37130-01-STM-XSS-0O.DWG GREELEY, CO. 80632-0758 9 Number C1.35 0311X2021 ISSUE FOR 100% REVIEW MEC PHONE. 8701356.4000 Daimler MEC AaoCADverson 2020 Sale: AS NOTED Una: Engrah 04/132021 ISSUE FOR 100% REVIEW MEC r. � - FM (7D}3D4fM97 Void. Sheet Subset Sheet Subset Sheet Number 83 0l 92 Asa 2020 sr T -r- T I � / W rn J w Index of Revisions Date: Comment: 09/162020 ISSUE FOR 60% REVIEW 03/12/2021 I ISSUE FOR 100% REVIEW p. MEC MEC MEC O W 2 (n J rn z z Co WELD ` z \OO PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEV. CO. 80632-0758 PHONE: (970) 356-4000 FAX (970)304-6497 N. T. 40776 '0. BS/ONA L 0 40 80 Feet WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Revisions EVAPORATION POND 5 CROSS SECTIONS Revised Designer. EN Detailer'. MEC Void Sheet Subset Sheet Subset Project No./Code 3313c Dravnng Number C1.36 Sheet Number 64 of 92 \. CI� Ii \ I O / ... ..... e"s_ 465.44 \ 'PP LEPHOh1E LINE -TM 1S \ I • N .•...\\\ J� O \ O 'aIt / rTT EPHONE LINE-TL115 \ \ t \ \ O r�73 \ P J6 li \ "E EPHGNIE LINE-TL115 \ 9 \ \ 14u \ , LEPH o 0 40 80 Feet Computer File Information I Index of Revisions 4665 4660 4655 4850100 HOR'. 1"=80' VERT. 1"=B' 4865 4660 I II �. .-p YI e1 -50 0 50 WQ Pond 6 - 0+50.00 4660 4655 4655 4650 HOR'. 1"=80' VERT. 1"=8' 4660 I 100 -100 -50 0 50 WQ Pond 6 - 1+00.00 0 40 80 j Feet .. uwr4lrmlu morals. BILL Data Comments'. Initials'. PUBLIC WORKS DEPARTMENT 1111 H. STREET 1111 H. STREET P.O. Box Date. 1292021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC u i LD CCUN au rcr 11/062020 ISSUE FOR 95% REVIEW MEC GREELEV. CO.CO. 30632-0758 06 PHONE: (970) 356-4000 Name'. 3313C-01-STM-xSS-OO.DWG 0 3 /122 0 2 1 ISSUE FOR 100h REVIEW MEC ` FAX. (070)304-6497 on 2020 Scale: AS NOTED UnR E4th 04/132021 , ISSUE FOR 1006 REVIEW MEC 4855 :7;140 100 4645 MASTER DRAINAGE PLAN No Revisions WQ POND 6 CROSS SECTIONS Revised Designer ETN Detailer MEC Void. Sheet Subset Sheet Subset T. 40776 !0NA L E� Project No./Code 3313c Drawing Number C1.37 Sheet Number 65 of 92 �iCDW11CRe ]/Y TO 1' Q9� I. ALL CaEWETE AND REDOING PER SPEQMA1DIS 2 .6TNL REMOVAEI{ CNVAHU[D STEEL HMSO WRARI RACK UN r MAK OPENNGS it S wE TNL IWAn rW300 (W APPROKD EdML) FARK UNDEREAM 'RAP PPE wr FtU91 - roas 36En t AID WIN K.ADrN[ TDPSDR M% (1:1 M1p) 13 RFBM PAN SURFACE rwMt W/ sAaa Rdrx WArc (SEE PEAIMS fDR S t t TWE) SEE mums AOMQNT GARDE Version: 2020 I :ti,2Ii31V..11. a ]r. 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CO. 80632-0758 PHONE W 470)356-a0 FAX' (�70)304-0s97 No Revisions 0911812020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC Revised 03/122021 ISSUE FOR 100% REVIEW MEC Void. 01132021 ISSUE FOR 100% REVIEW MEC NY 1r M 01(11iE.RMSrW or1Al5 „ .. 1m moor wim (Tw) a q +' mclW wYArmn J 51FF1 TEAR . �-Iwt DNET I• /• .1 " I 5¢ "tN 0 C10V1 SNOM 9227 01.4 C oAtU Pt W RAU NV IO OUx Ran 4x41 gITp1 A —A WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN GRADING & DRAINAGE DETAILS 3313c Designer EN DrwAng Number CD1.1 DetwilerMEC Sheet Number 67 of 92 Sheet Subset Sheet Subset o1O®I POD I POD 7 Pm 3 PSC 1 P001 A h5 1N 2T w D B It aY 1.Y 5t Sr C 1!117 W1.a1 1151.14 IMLS !1.77 0 111141 r772 415327 Nl4R ASa E 1N141 MIM 3524 MILa MR.$ F 1Hri 331.X 35113 3/l3 45775 I -- SYVdL_PY5 mep nK .I Ilxs .r,. e �. n .r. ou vv. •• x n MI W. Wwl Y.: /II .IIfI • 11 I .I I. - •,!j 't ,L lItI,. a]al: 3Ylia'ilif. ./'Y3lY! 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MEC 09/182020 ISSUE FOR 60% REVIEW MEG v u t 111062020 ISSUE FOR 95% REVIEW MEC Full Path: P.O. GREELEY, BOX 758 CO. 80632-0758 Revised: Designer ETN Drawng Number CD1.8 Oratwng Fie Name: 33130-00-GRP-0ET-OO.DWG 031122021 ISSUE FOR 100%REVIEW MEC PHONE: (970) 356-4000 Detailer: MEC AuWCAD Version: 2020 She: AS NOTED Units: Engllsb FAX (970)304-6497 Void: 041132021 ISSUE FOR 100% REVIEW MEC Sheet Subset, Sheet Subset Sheet Number 72 of 92 SHEET 81 SHEEy74 I SHEET 82 - -SHEET 83 SH %5 o /r __, __ J (SHEET 16 - �II I I I II1 I I) 11 ,I / a 77 1 Last Modifmd Dale. 3192021 File Nam T8 ntormatlon Index of Revisions Initials. MEC Date. Comments Inhale Initials. MEC 0&182020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC 04/132021 (ISSUE FOR 100% REVIEW I MEC HORIZONTAL CONTROL NOTES: 1. ALL DIMENSIONS AND RADII ARE TO FACE OF CURB, FACE OF BUILDING AND EDGE OF WALK UNLESS OTHERWISE NOTED. 2. CONTRACTOR TO REPAIR/REPLACE ALL DAMAGE TO EXISTING FLATWORK OR SITE FEATURES NOT INTENDED FOR DEMOLITION. 3. REFER TO GRADING AND DRAINAGE PLAN FOR FURTHER INFORMATION PERTAINING TO CURB & GUTTER, CHASES, AND DRAINAGE PANS. c SHEE\R4 I � I SHEET 86 IS EET 87 II SHEET 88 MATCHLINE SEE ItHIS SHEET WELD COUNTY PUSUC WORKS DEPARTMENT 1111 H. STREET P.O. Box 758 No Revisions CO. 80632-0758 PHONE. 870) 356-A000FAX FRelGREELEY. (?70)3046487 d MATCHLINE SEE THIS SHEET L - -JL MASTER DRAINAGE PLAN OVERALL HORIZONTAL CONTROL PLAN )esrgner ETN Sheet Subset KEYMAP NTS Qp� RED/ST T y F 40776 NL o'. : C pow �sS/ONAL CG\ 1 Project No./Code 3313c Drawng Number C3.D Sheet Number 73 of 92 TVREC INLET \ \ \ '\ \ SMALL PIPE HEADWA MAC NNL EL 4655.33 N@407379.76 E-222325.61 N. I\ . - THIS SHEET It CD3.0 4 wIDE REINFORCED CONCRETE PAN EXISTING RIPRAP I rN 00D159' E I e WO POND 1 N=407368.08 E=222310.64 EXISTING EDGE OF DRIVE PATH EXISTING BOTTOM OF POND I i KEYMAP NS.e #?0 REG/s 4O7760. • • o/ONA L 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project No./Code Creation Date. 08/312020 Initials: MEC Date: Comments: Initials PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 _ GREELEV,CO. 606320758 PHONE: (870) 356-4000 FAX: (670)304-6497 No Revisions: Last Modified Date. 3/122021 Initial: MEC 33130 0&182020 ISSUE FOR 60%REVIEW MEC Full PaO: °PUBLIC E 11/0612020 ISSUE FOR 95% REVIEW MEC Revised: Oesi ner. ETN 9 DravingNumber C3.1 DmwingF4eName: 3313C-03-HCP-0I.DWG 03/122021 ISSUE FOR 100% REVIEW MEC Detailer: MEC AutoCAD Version: 2020 Scale: AS NOTED Unit: En ! Voitl'. Sheet Number 74 of 92 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset: Sheet SUmset F- LU w S rn Ui w w z U Full Path: Units: Engksh PROPERTY LINE Index of Revisions WELD COUNTY Date: Comments. Initials x PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 OREELEE 70 80832-0758 ,. s. .. FAXNE.(170) 305 99 4-6497 No Revisions'. OBAB2020 ISSUE FOR 60% REVIEW MEC 111062020 ISSUE FOR 95% REVIEW MEC Revised 03A22021 ISSUE FOR 100% REVIEW MEC Void: 04/132021 ISSUE FOR 100% REVIEW MEC N - IrilS ch.FEl Cm NEV11AP u .�. ••• 40776 D 20 40 Feet WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN 3313c Designer. ETN Drawing Number C3.2 Retailer: MEC Sheet Number 75 of 92 Sheet Subset: Sheet Subset EXISTING CONCRETE PAN \ \ MAG NAIL \ • EL 4653.25 \ N=408889.. 82 \ E=222308.01 30.03' E E=222281.17 4WIDE REINFORCED CONCRETE PAN E=222295.28 ��• _ 35578' '3D' E / r EXISTING EDGE OF ASPHALT EXISTING FENCE yam. \ v. ♦ ♦ ♦ EXISTING EDGE OF GRAVEL ACCESS ROAD EXISTING BOTTOM OF POND ♦ PROPERTY LINE ♦ EXISTING CONCRETE PAN EXISTING INLET EXISTING EDGE OF GRAVEL N- I — w W 2 Co W W to W Z I N=406724.86 NO3*06'13"WJ IE=222244.18 E=222241.87 42.80' ____— EXISTING EDGE OF WATER .o e. THIS SHEET ;•;�\•\S T. N, 40776 t •. bi/ONA L 0 20 40 Feet L.omputer rile Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project No./Code Creation Date. 08131/2020 Initials: MEC Date: Comments Initials PUBLIC WORKS DEPARTMENT 1 11 P.0 H. soxR75BT GREELEY, CO. 80632-0758 PHONE ( �0 ) 358 000 ( )304-6497 No Revisions: Lest Mceirretl Date: 31122021 Initials: MEC 3313c 09/18/2020 ISSUE FOR 60% REVIEW MEC Full Pam: v' _ 0 Drawing His Name: 3313C-03-HCP-0I.OWG 111062020 ISSUE FOR 95% REVIEW MEC Revised: Desi Boer: ETN Drawng Number C3.3 03/122021 ISSUE FOR 100% REVIEW MEG Detailar: MEC AWaCAD Version: 2020 Scale: AS NOTED Ungs: English Void: Sheet Number 76 of 92 0 4/1 3 2 02 1 ISSUE FOR 100% REVIEW MEC Sheet Subset: Sheet Subset EXISTING CONCRETE PAN mI R EXISTING EDGE OF GRAVEL I- w w I S In L N I w Z I _ EXISTING INLET i 7 � -L52D8 N=406,550.93 ' ' -' 1 22 E=2:348.86 ' ' EXISTING EDGE OF ASPHALT I •1 I / i i' / / I / ' / I - 3 ,---,__ 4'VMDE REINFORCED ''� CONCRETE PAN CD3.0 _____ __--'-- N- --- - ' ' ' N 330.35' >- S ��-' ;�...i-.i-... to -'---' >_...>-...;-...>-�a-... w LU - J / > _ N=408858.33 • I I = U > E-222255.02 SPILLWAY I C RIPRAP RUNDOWN SEE TABLE I ON SHEET 68 N2442W03' W POND BOTTOM _ - --I WO POND2 ---- N406724.86 N 03'06'13'03'06'13'W-2 E--712244.18 _ _ E=222241.87 4280 _ EXISTING EDGE OF WATER File Information I Last Modified Dale. 3/12/2021 Initials MEC Fie Name 3313C-03-HCP-0I.DWG I Verson 2020 Scele: AS MOTES Index of Revisions Date Comments 08/182020 ISSUE FOR 60% REVIEW 11/06/2020 ISSUE FOR 95% REVIEW 03/12Q021 ISSUE FOR 100% REVIEW 04/132021 ISSUE FOR 100% REVIEW PROPERTY LINE EXISTING EDGE OF GRAVEL ACCESS P EXISTING BOTTOM OF POND J - EXISTING WESTERN RETENTION POND Initials. = IWO PUBLIC WORKS DEPARTMENT MEC s .^ 1111 H. STREET MEC P.O. BOX 758 GREELEY. CO. 80632-0758 MEC PHONE (970)356-4000 \, FAX: (870)304-6487 MEC lJ THIS SHEET r KEVMAP xie T. 40776 !ONAL 0 20 40 Feet WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Revisions DETAILED HORIZONTAL CONTROL PLAN Revised Designer ETN Detader MEC Void Sheet Subset Sheet Subset Project No./Code 3313c Drawing Number C34 Sheet Number 77 of 92 7 .. __________ FUTURE CONCRETE PAN I' (BY OTHERS) C EXISTING EDGE OF ASPHALT \ EXISTING CULVERT - I-- TOP OF BERM �LL I _ _ FUTURE RIP RAP RUNDOWN ---- _ �-- ___ --��\- 4' SD MH (BY OTHERS) T\ THIS SHEET Hp 1 1 I tLt i $ 1 KEYMAP N T,e �--! 1 i OO REG/ LU Iu-i 4' WIDE REINFORCED CONCRETE PAN 3 1 I I pQP,••• . CD3.0 _ pp 29.32 I W I I WO POND 2 E=222284.74 �I ! pp l I ; 40776 N rn1 I .;' I II Vt i-..21 I i= _ i-_.i_... s-_.i-...i ...-�-... n .i- a,-...-� OUTLET STRUCTURE ItrPVc I' O�•, ZI i ..� i-.. i 1 11 F \ - . . ,.1 1 330.35' I I I I � I I I 1 I 1 1 1 I I I I 1 1 SMAL4PIPE HEADWALL SPILLWAY I I BOTTOM OF POND I 1 I I I � SEE TABLE 1 ON SHEET 68 I ________________ _____________________________ ____________I I II '.. __________ I j iI 150 I o 0 0 0 0 0 0 0 6�Fe�— I I I 181 CONC FES 0 20 40 EXISTING WESTERN RETENTION POND Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 08/312020 Initials: MEC Date: Comments: India: MASTER DRAINAGE PLAN Last Modird Date. 3(12/2021 Initials'. MEC 0&1&2020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions: DETAILED HORIZONTAL CONTROL PLAN 3313c Full Path: v �' c roc c 1111 H. STREET 11/082020 ISSUE FOR 5% REVIEW MEG P.O. BOX 758 Designer EN Drawing File Name 3313C-03-HCP-0I.DWGREELEY. CO. 80632-0758 Revisetl'. Droving Number C3.5 03/1212021 ISSUE FOR 100%REVIEW MEGMPHONE: (870)356-4W0 Detwiler MEC 87 AN4CAD Versron'. 2020 Sale: AS NOTED Units: English Oq/132021 ISSUEFOR MEG FAX: Void: Sheet Subset: Sheet Subset sheetNumber 78 of 92 ( 0j 304�4B7 N=407603.37 -- -- - .-"'--- ' E=222738.7fi—_-"_— --0a oil\ au eJ . __.. i u / I * THIS SHEET 10' WIDE REINFORCED :� CD3.0 OONCRETE PAN .:;..:/ ' � ' - — ._. BEGIN CURB ��,_ _3. a a-------�—�—' —} C c c ro -- N=407571_ —�— R� _ v o _—. N..... —y .. ..q % Y - X Y N N - %— 'N __I... . . ..: . BEGM CURB N 33'34'1.8" W, 3O0.3T .. ./"'END CURB . N=407438.95 . • -yam N=40T488 15 Fes=222849.17 - - �' E=222828.47. I. I 30"CURB AND GUTTER a 3 SEE DETAIL M-609-1 10' WIDE REINFORCED ON SHEET CD3.0 CONCRETE PAN C303.0 I _ _ __. ___.. __—. KEYMAP �._._ _. — _. _. I N.Te FT EXISp, SAWCUT LINE QING FENCE I v RE PROTE� W • 1 I= E 40776 NE HEAVY DUTY ASPHALT CD3.0 _ ----------- I w po'•. : �'� Iz ASSIONAL li G o � of 'j oL [iTi EXISTING FUEL SITE ___.I _ I I a o I EXISTING FUEL TANKS 0 20 40 _ _ _ . _ _ _ _ _ _ __ _ _ _ _ _ _ _ _ _ _ _ _ _ ___ _ . _ . _ _ _ _ _ _ . _ ___ _ _ _ _ _ _ _ _ I Feet MATCHLINE SEE SHEET 81 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 08/312020 Initials MEG Date, Commence. Initials MASTER DRAINAGE PLAN Last Modified Dale. 3/122021 Initials MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions DETAILED HORIZONTAL CONTROL PLAN 3313c Full Palh: ° �� c L couu u l c w N a a w.c 1111 H. STREET 11/062020 ISSUE FOR 95% REVIEW MEC P.O. CO. W Revised Designer ETN Drawing Number C3.6 Drawi File Name' 3313C-03-HCP-01.DWG100% GREELEE:Y 970806-4-0758 n9 03/122021 ISSUE FOR REVIEW MEC PHONE: (870)358-d000 Detailer. MEC AutoCAD Version'. 2020 Scale'. AS NOTED Units. English 04/132021 ISSUE FOR 100% REVIEW MEG FAX (970)304-64497 VoidSheet Number 79 of 92 Sheet Subset: Sheet subset Ui Ol--_olD4-._ _oJ a!- _... J_ of--. OJ- O ___ .-o! 01---0a O! o! Od 04- 30" CURB AND GUTTER SEE DETAIL M -608-i 18" CONC FES JA ON SHEET CD3.0 - " HEAVY DUTY ASPHALT CD3.0 THIS SHEE T'. ...-- _ .Fa FO ,O re ._._..—FD - -!D —FC FL —FO FC ---- ,.: __.----------FO—...—vJ_.._"-"'--iO- FD -pO_ .FO.-_ ICI /� SEE TABLE t ON SHEET 68 I .-__ ..-•, \ .. LL 1 I II I I _. - - - - - - . _...a- x -...s-.4- WO POND 6 N=407183.95$ KEYMAP . I' HEADWALL III i ___ COMBINATION INLET it N=x07293.64 - rNDSAND/OILSEPARATOR I E=222915.87 N-407238.41 _-_--'---- SAWCUT LINE 4 E=222954.12 3 OUTLET STRUCTURE '. '•"...... 4' WIDE REINFORCED N m 1 PROPERTY LINE j r�" j CONCRETE PAN CD3.D W I I. N=407300.28 •f/ N LA TOP OF POND x I I E zzzet 1.ao \N 36.12'01' W 40776 .� W \, 68.72' W __— . :1 - ass/ONAL ECG\ 2I U I I HEAW DUTY ASPHALT PROTECTEXISTINGTANK$ - - ' AND ENCLOSURE - EXISTING CONCRETE PAN I I P I' ( w I •VI I is GRADESREAK . yI .I I y. II 3 6WIDE REINFORCED e ' CONCRETE PAN CD3.0 '� ' I I y I 0 20 40 - wT L '� � � � � � Feet I .' MATCHLINE SEE SHEET 83 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creston Date: 08/312020 Initials: MEC Date. Comments Inals MASTER DRAINAGE PLAN Last Modified Date: 31122021 Initials: MEC 091182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions: DETAILED HORIZONTAL CONTROL PLAN 3313c FuN Path: vo I L 1111 H. STREET 11106/2020 ISSUE FOR 95% REVIEW MEC P.O. BOX 768 Revised: Designer: EN Drawing File Name: 3313C-03-HCP-0l.DWG = GREELEY, CO. 80632-0756 Drawing Number C3.7 03/122021 ISSUE FOR 100X REVIEW MEC ._ PHONE: 1970) 356-4000 Detwiler MEC AutoCAD Version. 2020 Se: AS NOTED Units: EngNsh 041132021 ISSUE FOR 100% REVIEW MEC FAX. (970) 301-8487 VOTE: Sheet Number 80 of 92 Sheet Subset: Sheet Subset: <JTi THIS SHEET C\ I � I N=407532.16 sB • E=222559.32 I `[ $ KEYMAP v?s HEAVY DUTY ASPHALT CD3.0 I ^ :.'tp RE��ST w IN N�0739d.11 BOLLARD (T/P.) 4 •:- :1 I W A�� • ?�W E=222503.16 CD3.0 ( z SS/DNA L ENG\ J EVAP POND 5' U H Ii SAWCUT LINE .• I END CURB AND GUTTER N=407453.07 ' • 2 E=222594.56 HEAVY DUTY I -- _+.:. �...._+..._a. _e. . . .._F. +..._._4.• a.. 4. t. _•. _ _ ..t .-r 1 CONCRETE • W CD3.0 • . - CONCRETE 5 - I • RETAINING WALL CD3.0 . N 34°3955" W . 352:31F CURB AND GUTTER SEE DETAIL M-609-1 I PROTECT EXISTING SALT SHED ON SHEET CD3.0 .1 SALT SHED MATCHLINE SEE SHEET B2 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 08/312020 Initials MEC Date Comments Initials MASTER DRAINAGE PLAN Last MoOlred Date, 3/12/2021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC = IWO PUBLIC WORKS DEPARTMENT No Revisions DETAILED HORIZONTAL CONTROL PLAN 3313c fuY Path: ° ' ouu u c a w I111 H. STREET Dec n 71/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Drawn Orasirg File Name 3313C-03-HCP-0I.DWGGREE NE: CO.7O 356-4-O758 Revised 9 er EEC p Number C3.8 03/122021 ISSUE FOR 100% REVIEW MEC PHONE 970) 358-4000 Deta4er MEC AuIoCADVersae. 2020 Soak: AS NOTED Units Engash 04/172021 ISSUE FOR 100% REVIEW MEG FAX: 170)3044497 Void Sheet Subset Sheet Subset Sheet Number 81 of 92 is �'. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - MATCHLINE SEE SHEET 81 - - - - - - II('B��I O '1 . . I THIS SHEET HEAVY DUTY CONCRETE C03.0 30CURB AND GUTTER " 0 SEE DETAIL M-809-1 . I ON SHEET CD3.0 . I CURBWALLFL N 3439'55" W 352.39' ' -: IN.T9 HEAVY DUTY ASPHALT I EG/S CD3.0 I EVAP POND 5 N' l W 40776 t p• •:�� I= 5 r CONCRETE RETAINING WALL CD3.0 I RELOCATE IRRIGATION LINE I THAT CONFLICTS WITH ' RETAINING WALL. APPROXIMATELY 285' I CURB8 GUTTER FL S 34°39'55" E 216.41' � I SALT SHED 0 20 40 MATCHLINE SEE SHEET 83 . Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY WORKSKS Project No./Code Creation Date: 081312020 Initials: MEC Date: Comments: Initials ER DSTDRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN PUBLIC WORKS DEPARTMENT _ 1117 H. STREET No Revisions: 3313c Last Modified Dale: 3/1212021 Imtlals: MEC 09/182020 ISSUE FOR 60%REVIEW MEC Fu N Path: r E 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 CO. 80632-0758 Revised: Designer. ETN Dravnny Number C3.9 03/122021 ISSUE FOR 100% REVIEW MEC Detailer. MEC 0rad File Name: 3313C-03-HCP-0I.DWGGREELEY, n9 PHONE:970)356-4000 FAX: (�70) 304 197 Void. Sheet Number 82 of 92 AuIoCAD Version: 2020 ScSe: AS NOTED Units: English 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset. Sheet Subset Last Modified Date: Full Path : Drawing Flb NOW ANoCAD Version: File Information Initial. MEG Initial: MEC Date: Comments: Initials 09/182020 ISSUE FOR 60% REVIEW MEC 11/062020 ISSUE FOR 95% REVIEW MEC 03(12)2021 ISSUE FOR 100%REVIEW MEC 0411312021 ISSUE FOR 1 D0% REVIEW MEC MATCHUNE SEE SHEET 82 SALT SHED I. BEGIN CURB AND GUTTERS N=407274.69 E=222717.06 SAWCUT LINE ' [EVAP POND5 EXISTING PROPERTY LINE ' b CONCRETE RETAINING WALL CD3.0 76. HEAVY DUTY ASPHALT CD3.0 . N=407200.32 E=222768.34 Nr107211.60- N=407208.83 EXISTING CONCRETE PAN E=222787.56 6WIDE REINFORCED CONCRETE PAN wills PUBLIC WORKS DEPARTMENT No Revisions 1111 H. STREET P.O. BOX 758 [Revised GREELEY, CO. 80832-0758PHONE(97D) 358-1000FAK (970)301-6497 d c c\ \\ V�> i SHEET emu \ NKEBMAP Vy of 40776 Ai 6 `A i • :• • / I I I 0 20 40 Feet WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN 3313c Designer ETN Drawng Number C3.10 Detailec MEC Sheet Subset: Sheet Suhet: Sheet Number 83 of 92 ` - �N�06751.99 •E=223240.71 N 332440' W •88.98' yy SAWCIfT LINE EXISTING CONCRETE PAN y HEAVY DUTY ASPHALT N=406677.73 CD3.D ' ' E=223289.73 TYPEC INLET 4VIDE REINFORCED CONCRETE PAN 3 CD3.0 BUILDINGS AND GROUNDS APPROXIMATE OUTLINE OF FUTURE BUILDING EXPANSION . \\ (DESIGN AND CONSTRUCTION BY OTHER 4. ATCHLINE SEE SHEET 85 4' SD MH U 0 20 40 Feet THIS SHEET KEY MAP N.T.e t.S T. A 40776 • TONAL i.omputer rile InTormarlon Index of evisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project No. /Code Creation Date: 08/31/2020 Initials: MEC Date: Comments. Initals PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 - GREELEY, CO. 80632-0758 PHONE: (970) 3564000 FAX: (970)304-6497 No Revisions: 3313c Last Modified Date: 3)122021 Initals'. MEC 08/182020 ISSUE FOR 60% REVIEW MEC Fu I Path- Vo t u PLASSlflS 11/062020 ISSUE FOR 95% REVIEW MEG Revised: Designee EN Drawin gNumber C3.11 Drawing Fde Name: 3313C-03-HCP-0I.OWG n9 03/122021 ISSUE FOR 100% REVIEW MEC Detailer'. MEC AutoCAD Version: 2020 ScIde AS NOTED Units: En¢s8 04/132021 ISSUE FOR 100% REVIEW MEG Void: Sheet Number 84 of 92 Sheet Subset Sheet subset MATCHLINE SEE SHEET 84 ♦ / I FUTURE EXPANSION OF BUILDINGS AND GROUNDS 1k (FOR REFERENCE ONLY DESIGN AND CONSTRUCTION BY HERS) w THIS SHEET " `, / U) ILU SMALL PIPE HEADWALL < II .' N. ! N�08548.34 .' .' , 41-EL=4653.22 / / _ {i KEYMAP E=223196.82 -- /' , ` ' MEG NAIL / SAWCUT LINE I U u.La -- APPROXIMATE OUTLINE OF FUTURE BUILDING EXPANSION / /' ' -- `,\ \ ``\ \ (DESIGN AND CONSTRUCTION BY OTHERS)-, I //' RE ` , , HEAW DUTY ASPHALT \• S T. 16'CONC FES'•� JJJ...i CD3.0 .i . 'NJq `, `, �' WO POND 3 , N 30 05'23. /yC.REINFORCED CONCRETE PAN CD3.D S ....... • PROTECT EXISTING ELECTRIC METER F /0NA L / N=408512.98 `� \ PROPERTY LINE /' E=§23364.40. I TYPE C INLET 15. RCP . . . . . . ____r EXIST 4' SD MH OUTLET STRUCTURE 4SD MH I _.__. _.. _ N-40648407 SPILLWAY._ .__ _—_ _ _ E=223384.10 SEE TABLE 1 ON SHEEE T 88 EXISTING STORM DRAIN _._ '— FUTURE CONCRETE PAN ----- __ __ (BY OTHERS) . - .1. I 1 .I . I 1 1 + I 0 20 40 MATCHLINE SEE SHEET 87 . ee' s 1 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale: 08/312020 Initals. MEC Date: Comments. Initials MASTER DRAINAGE PLAN Last Modified Date: 3/12/2021 Ini als'. MEC 09/182020 ISSUE FOR 60% REVIEW MEC u.n PUBLIC WORKS DEPARTMENT No Revisions DETAILED HORIZONTAL CONTROL PLAN 3313c 1111 H. STREET Full Path: `plcr.DUNTY PUBLICWORKS11/08!1020 ISSUE FOR 95% REVIEW MEC P.O. Box 758 Revised'. Designer. ETN Drawn Number C3.12 Drewin File Name: 3313C-03-HCP-0I.DWG — GREELEE, CO. 80632-0758 9 9 03/122021 ISSUE FOR 100% REVIEW MEC PHONE: (870) 356-4000 Detwiler. MEC AutoCADVersico: 2020 Se: AS NOTED Units: English 041132021 ISSUE FOR 100% REVIEW MEC FAX: (970) 301-8197 Void: Sheet Subset: Sheet Subset: Sheet Number 85 of 92 I • I oA HEAW DUTY ASPHALT �� `� 'I CD3.0 C - ,! ___t_ . THIS SHEET � l N . . . . . . . . . . . \ a KEYMAP WI \\ \ z . I EXISTING EDGE OF ASPHALT.. \ \\ O`f"•D0.. REo/Si' F \ . .. . 6' WIDE REINFORCED CONCRETE PAN CD3.0 . \.\\ F.SS •...........�G�? . . N 66°t8'20"'E, 75.31, . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PROPERTY I-INE . . . . . N=-006517,82 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N 90°00'00.. E.' 174.11•. . - E=223438.42 . - . -P._E... .._....._....-1....-..�1_F...-t...._�...._t...-�. _�..w_�...._R.. �...._�...-_F ..-F..._�.._ ..._F._ � F' F tr F - <. ------------------------- - ----------------------------- N=406517.82 -c _ N=406512.82 E-223431.87 EXISTING TOP OF POND GRADE BREAK -i_- 1 E=223611.92 E= 223630.4E IX WATER DUALITY EXISTING EDGE OF WATER '\ SWALE 7 •� —N 35°30'16WW �N=4 3 �, N=408464.82 . -' y\ E=223650.94 EXISTING EASTERN RETENTION POND '�—��v� y 0 20 40 MATCHLINE SEE SHEET 68 \ i1 �— � I Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08/312020 Initials: MEC Date. Comments: Initials MASTER DRAINAGE PLAN Last Modified Date: 3/122021 Initials. MEC 09/182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions. DETAILED HORIZONTAL CONTROL PLAN 3313c Full Path: v r Cou 11/OBf2020 ISSUE FOR 95% REVIEW MEC Ait 1 P.O B0X7667 Revised: Designer: ETN Drawing File Wnc: 3313C-03-HCP-01.DWG _ GREELEY, CO. 80632-0758 Drexing Number C3.13 03/122021 ISSUE FOR 100% REVIEW MEC PHONE: (870) 358-4W0 Detailer: MEC AM0CAD Version: 2020 Scale: AS NOTED UMh: En1Glt 04/132021 ISSUE FOR 100% REVIEW MEC FAX: (970)304-0497 Void: Sheet Number 86 of 92 Sheet Subset: Sheet Subset MATCHLINE SEE SHEET 88 I I I WATER DUALITY SWALE 7 EXISTING TOP OF POND I EXISTING EASTERN RETENTION POND N=40626R.92— E=223457.38 ml WI w w UI w w N EXISTING EDGE OF WATER I N=406279.05 _ E=223423.27 U I N=408277.05 3 4' WIDE REINFORCED CONCRETE PAN E=223419.55 CD3.0 GRADE BREAK EXISTING EDGE OF ASPHALT �'� S27'1C43"E �� . i- 64.77 --J S 02'1756" E . - 149.54' ,r" Y �� YM. OFASP _ " ._�.. -�+—..._�' EXISTING EDGE—� F_. �- F _ I I Nm405334.85 HEAVY DUTY ASPHALT E=223390.10 I CD3.0 I rl } f i Or f ? THIS SHEET 4 / R `F} KEYMAP f N T.8 \T �� ........ EG``rrF 40776 " • pt, •..A PROP TY LINE w w 0' .n it 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project No./Code Creation Dale. 08/312020 Imtiels MEC Date Comments Initials xoPUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 CO 80632-0758 PHONE(970) 356.4000 - FM (870) 304-64W u -` No Revisions 3313c Last Modified Date. 3/12/2021 Initials MEC 09/182020 ISSUE FOR 60% REVIEW MEC Ful Path ' UN PUBLIC �'o s 11/062020 ISSUE FOR 95% REVIEW MEC Revised Designer 9 ETN Drawn N p umber 03.14 Drawrp Fie Name 3313C-03-HCP-0I. DWGGREELEY. 07/122021 ISSUE FOR 100% REVIEW MEC Detailer MEC ANaCAO Versm. 2020 Srale. AS NOTED Units En A Void Sheet Number 87 of 92 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset N 406404.02 E 223667.55 -�_ >- - L=54.22 ".y � N405349.75 \ E=223675.1046177' +N THIS SHEET 07'55'20" W733''y N406301.60N07'5520W 54.79' ChB=N23'29'00'E54.79' ChL=5250KEYMAP 9 NS9EXISTING lja�v TOP OF PONDLUATER QUALITY SWALE 7 EXISTING BOTTOM OF POND L ; 40776 /.40 .26W ROT �� \� ; Cl) R=168.28' .r21'36'OY RIPRAP RUNDOWN X79'42^28' N=4062 .75 : E=22363.85 q . �+ EXISTING FEN E 4 AO�.,. .tV W ChB=Ni5'16'49W ChB=S41'5629W I / :Cs I to ChLxi3.02' ChL=33.41' 'N ss/ONAI E''G 2 �1 2UQ I � f >TI e .I WATER QUALITY SWALE 7 I EXISTING ELECTRICAL POLE 1 EXISTING TOP OF POND ? ��::—� I —. lip 4 / / EXISTING OUTLET STRUCTURE J I j S 87'25'50 W I 4� 174.64' I I �� MATCHLINE SEE SHEET 87 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No.lCode Creation Date: 08/312020 Initials: MEC Date: Comments: Inieela: MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 756 CO. 80832-0758 PHONE: (970) 3584000 No Revisions: 3313c Last Moddred Date: 3/122021 Initals: MEG D91162020 ISSUE FOR 60%REVIEW MEC Ful Path: 11N612020 ISSUE FOR 95% REVIEW MEC Revised: Designer: ETN il DrawnpNumber C3.15 Number 3313C-03-HCP-0I.DWGREELEY. 031722021 ISSUE FOR 100% REVIEW MEGM Detailec MEC AutoCAD Verson: 2020 Scale: AS NOTED Unit: English FAX- (87aj 3046497 Void: Sheet Number 88 of 92 04/732021 ISSUE FOR 100% REVIEW MEC Sheet Subset: Sheet Subset: EXISTING CONCRETE PAN N 17.0829' W 193.58' rN=408053.30 / - " 1 E=22358768...- - - a_ E=223578.12 N-40586831 EI E=2223644.74,74 \ P / --- - PROPERTVLINE I _._. _.. _ O GRADE BREAK/ - - e- + / - _ THIS SHEET - N-005888.80 ` .._ E=113634. i2 "+a. KEVMAP - y - / - "- a a N 22422007' E �' --- " 344.63' .. +�: r lC40776'041 1.y a-. -a N 17.082W a- a 190.00' I CD3.0 10'WOE REINFORCED CONCRETE PAN I w Iw I /n Iw rn w Iz 7 Ic la F 20 40 Feet Liom user rue iniormaiion Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project NoJCode Creation Date 08/312020 Ineak'. MEC Date. Comments Initials PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY. CO. 80632-07580 PHONE:(970)356-000 • a FAX: (870) 304-6497 No Revisions 3313c LAW' /III DAD. 31122021 Initials: MEC 001182020 ISSUE FOR 60% REVIEW MEC Full PAIR cr 8t0 11 11'062020 ISSUE FOR 95% REVIEW MEC Revised Designer EN Orassin Number C3.16 OreMrp FM Neme' 3313C-03-HCP-0I.DWG 03'12!1027 ISSUE FOR 100%REVIEW MEC Detailer. MEG Void Sheet Number 89 of 92 As CADVen t 2020 swe: As MOTED Uh4s: Enphsh 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset. Sheet Subset I I EXISTING BOTTOM OF DITCH EXISTING TOP OF DITCH N 22°2207" E , ` 338.96' \ PROPERTY LINE I �> _ I I I y` ` THIS SHEET 1 `, - I. KMAP yam PROPERTY LINE I // .,�:.y` t N.Ta GRADE BREAK mI I p0 REG/s W N 220MT' E yam''.:, ppp = I 344.63' Y I m � It 40776 on w I am. w Ui Lii ..yam 2 YQ I. 10'WDE REINFORCED CONCRETE PAN 3 Y'.v` - - I W FSy: "•••••••'••aG\ oI CD3.0 y, �� In /ONAL I y`"'y` w Yom... 49-EL=4649.96 ' I Z Y.�. N4 REBAR 2 U I I Y` : I 1� I I N=405554.86 E=223515.74 N=405550.10' I � E=223502.97 I I RIPRAP RUNDOWN I I a�rl� N=40554275 E=223499.09 j I TOP OF POND I I I I I 0 20 a0 BOTTOM OF POND II I I I 6pel I Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No. /Code Creation Date: 08/312020 Initials: MEC Date: Comments: Initials. MASTER DRAINAGE PLAN Last Modified Date: 3/122021 Initials: MEC 091182020 ISSUE FOR 60% REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions: DETAILED HORIZONTAL CONTROL PLAN 3313c 1111 H. STREET PoY Path: P4 WIAWIbflS° 100 11!062020 ISSUE FOR BS% REVIEW MEC P.O. BOX 758 Revised Designer: ETN Drawi File Name: 3313C-03-HCP-0LDWGREELEY, CO. 90632-0758 Drexin9 Number C3.17 n9 03/122021 ISSUE FOR 100X REVIEW MEGMEC PHONE: (970) 356-4000 Retailer. MEC AMoCADVersion: 2020 Scale: AS NOTED Units: Enphh 04 /1 3 2 021 ISSUE FOR 100% REVIEW MEC FAX: (970) 304-97 void: Sheet Subset. Sheet Subset Sheet Number 90 of 92 E=223515.74 N=405550.10—/ E=223502.87 RIPRAP RUNDOWN N=405542.75- E=223499.D9 TOP OF POND BOTTOM OF POND 10' r \ pt CONCRETE 3 4W1DE REINFORCED 13.0 CONCRETE PAN N2T51'f4'@ -Y� 108.W `. \ Y` WO POND 4 E=223448.55 OUTLET STRUCTURE I I ' I I I EXISTING BOTTOM OF DITCH EXISTING TOP OF DITCH ` SMALL PIPE HEADWALL - f 1 EXISTING PROPERTY LINE ------------- s{{ THIS SHEET — KEYMAP T. 40776 W • •' 2 0 20 40 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN DETAILED HORIZONTAL CONTROL PLAN Project No./Code Creation Date: 08/31/2020 Initials. MEG Date. Comments. Initials. PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. 80832-0758 PHONE: 970) 3564000 -' ' FAX: (70) 304-6497 No Revisions. 3313c Last Modified Date. 3/122021 Initial. MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC FLIT Path. . vtnucw L coury Pu cC wn as AST o AIiAGE t 1/062020 ISSUE FOR 95% REVIEW MEC Revised Designer'. ETN Drawing Number C3.IB g Drawing Drawl File Name'. 3313C-03-HCP-0I.DWG100% 03/12/2021 ISSUE FOR REVIEW MEC Detailer'. MEC Void Sheet Number 91 of 92 AufaCAD Versron: 2020 Scale: AS NOTED Units: English 04/132021 ISSUE FOR 100% REVIEW MEC Sheet Subset Sheet Subset. OW CAVAIED. MIL-1MAlto AIM IaLpWAC1ED SIBGRAD( PER $PE1CA11D6 019E1ICAVA1mI MOE1ME-1RFATED AID RECgWAC1FD 9AEAIM PER SPECFIG11a6 ASPHALT PAVEMENT SECTION DETAIL ,n CST r L._. CURD MID Cut TYPE 2 (SECTION 18) (6 IN, BARRIER - I FT. GUTTER) r e ! P rif I . A a J (SECTIIN IM) (6 IN. MOUNTABLE - I Fi. GUTTER) r ey (I/i r, —' I e nt C1MB AND JTTER TYPE 2 (SECTION IIB) (6 N. BARRIER - 2 FT. CUTTER) e ¢ _ r A —_li) CURB IMO GUTTER TYPE 2 (SECTION IIM) Is IN. AEIUNTABLE - 2 FT. GUTTER) M• Ml 9M IN 113' 1I A AL1 AAJONI Y[ Rc•Ih . Pre A tiv Nw. 44t Lv MK M• ..q L .ITT' llWrMI, I( IRYUI wr ✓A✓t CLfl; v IY- rJ V wylu nIEA.' 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M -ea -T me TRe sCET Fu aAE NB a2rTa RrAR CONCRETE RETAINING WALL DETAIL MB tit WELD COUNTY PUBLIC WORKS Project No./Code MASTER DRAINAGE PLAN HORIZONTAL CONTROL DETAILS 3313c er: ETN I Drawing Number CD3.0 Sheet Subset I Sheet Sheet Number B2 of 92 STORM WATER MANAGEMENT PLAN FOR WELD COUNTY PUBLIC WORKS 1111 H STREET GREELEY, CO 80631 PREPARED FOR WELD COUNTY PUBLIC WORKS 1111 H Street, Greeley, CO 80631 JANUARY 27, 2021 NOTIFICATION OF RESPONSIBILITY CONTACT INFO Owner/Developer Weld County Public Works 1111 H St Greeley, CO 80631 (970) 400-3750 Contractor TBD Design Engineer JVA, Inc 213 Linden St, Ste 200 Fort Collins, CO 80524 (303) 444-1951 Erosion Control Administrator (SWMP Administrator) TBD by Contractor TABLE OF CONTENTS PROJECT DESCRIPTION AND NATURE OF CONSTRUCTION 2 SITE LOCATION 2 EXISTING SITE CONDITION 2 PROPOSED CONSTRUCTION ACTIVITIES 2 POTENTIAL POLLUTANT SOURCES 3 DISTURBED & STORED SOILS 3 VEHICLE TRACKING OF SEDIMENTS 3 MANAGEMENT OF CONTAMINATED SOILS 3 LOADING AND UNLOADING OPERATIONS 3 OUTDOOR STORAGE OF MATERIALS 3 BULK STORAGE OF MATERIALS 3 VEHICLE EQUIPMENT AND MAINTENANCE 3 SIGNIFICANT DUST GENERATING PROCESSES 3 ROUTINE MAINTENANCE ACTIVITIES 4 ON -SITE WASTE MANAGEMENT 4 CONCRETE TRUCK/EQUIPMENT WASHING 4 DEDICATED ASPHALT AND CONCRETE BATCH PLANTS 4 NON -INDUSTRIAL WASTE MANAGEMENT 4 SAW CUTTING AND GRINDING 4 OTHER NON-STORMWATER DISCHARGES 4 CONSTRUCTION CONTROL MEASURES 5 INSTALLATION AND REMOVAL SEQUENCE OF CONSTRUCTION MEASURES 5 PHASING 6 MAINTENANCE AND INSPECTION REQUIREMENTS 6 FINAL VEGETATION AND STABILIZATION 6 SEQUENCE OF CONSTRUCTION ACTIVITIES 7 REFERENCES 7 APPENDIX APPENDIX A - UTILITY CONSTRUCTION PLANS AND MAPS 1 VICINITY MAP 2 EROSION CONTROL PLANS (CE1 0-1 2) 3 SWMP AND EROSION CONTROL DETAILS (CE1 3-1 9) 4 SOIL MAP AND DESCRIPTIONS 5 GEOTECHNICAL REPORT 6 MHFD CONSTRUCTION BMP FACT SHEETS Weld County Public Works — Storm Water Management Plan Page 1 of 7 PROJECT DESCRIPTION AND NATURE OF CONSTRUCTION SITE LOCATION The Weld County Master Drainage Plan Redevelopment (site) is located in Northeast Quarter of Section 31, Township 6 North, Range 65 West of the 6th Principal Meridian, in Weld County, Greeley, Colorado The address of the site is 1111 H Street, Greeley, CO 80631 The site is bordered to the north and east by a private street, and to the west and south by regional detention ponds and wetlands Developed government and commercial areas border to the north and east of the site The property is owned by Weld County EXISTING SITE CONDITION 'The site is approximately 35 acres of developed property including adjoining detention and water quality areas The existing site is made up of facility buildings, asphalt and concrete paving, a fueling station, and existing drainage facilities The disturbed area is approximately 6 28 acres and consists of on -site grading improvements, grading and drainage structure improvements for the existing detention areas There are existing onsite retention ponds (see the Vicinity Map included in Appendix A) There is an existing retention pond located on the west side of the site and an existing retention pond located on the east side of the site Each are labeled east and west respectively The site is comprised of three soil types Aquolls and Aquents gravelly substratum, Ellicot-Elhcot sandy -skeletal complex 0% to 3% slopes, and Kim Loam 5% to 9% slopes The majority of the developed site and the portion -receiving grading improvements consists of Aquolls and Aquents gravely substratum, which is of the hydrological soil group D, type D soils have low permeability rates and produce relatively high runoff The majority of the area currently being used for detention and proposed for improvements consists of soils deposited from borrow pits and Elhcott- Elhcot sandy -skeletal complex, which is of the hydrological soil group A, type A soils have relatively high permeability rates and have low runoff potential when thoroughly wet From the geotechnical report dated August 18, 2020 the soils consist of varying layers of silty sand with gravel, silty clayey sand, and well graded sand with silt and gravel Groundwater was encountered at 7ft below the ground surface at the fueling station located just west of H Street on the northeast section of the site PROPOSED CONSTRUCTION ACTIVITIES In general, the proposed redevelopment of the site consists of on -site grading, installation of drainage structures, and regrading of existing drainage ponds Weld County Public Works — Storm Water Management Plan Page 2 of 7 POTENTIAL POLLUTANT SOURCES DISTURBED & STORED SOILS Disturbed & stored soils should follow MM2 located in the appendix The total disturbed area will be approximately 6 28 acres Soil stockpiles should be kept below the locally mandated maximum height of 10 feet and surrounded with sediment control devices If the storage of these soils occurs over a period greater than 30 days, then consider temporarily seeding the soil to minimize soil loss to wind and water erosion VEHICLE TRACKING OF SEDIMENTS Vehicle tracking control should follow SM4 located in the appendix The existing site is developed A temporary stabilized stone pad and/or Trackout Plate (Vehicle Tracking Control pad, VTC) will be provided at points of ingress and egress onto the unpaved area The VTC is designed to reduce the amount of mud transported onto the public roads by construction traffic If tracking does occur the contractor will provide street sweeping When in doubt, choose methods that prevent pollution rather than ones that force clean-up at the downstream end just before the stormwater enters the receiving waters In other words, the most efficient construction site BMPs are those that prevent erosion from happening MANAGEMENT OF CONTAMINATED SOILS There are no known, existing contaminated soils on site If contaminated soils are found, the contractor shall report to the SWMP administrator LOADING AND UNLOADING OPERATIONS Loading and unloading operations should follow MM3 located in the appendix The existing entrance to the site is currently paved and loading/unloading activities will occur within the site where a temporary gravel staging area will be provided OUTDOOR STORAGE OF MATERIALS Outdoor storage of materials should follow MM3 located in the appendix Materials storage, waste disposal, and vehicle maintenance and fueling can occur within an enclosed and secure area BULK STORAGE OF MATERIALS Bulk storage of materials should follow MM3 located in the appendix Bulk liquids may be stored on site and should be stored in a secondary containment area with a fence so that if a spill were to happen the contents would pool in the containment area and prevent it from entering stormwater runoff VEHICLE EQUIPMENT AND MAINTENANCE Vehicle equipment and maintenance should follow MM3 and SM6 located in the appendix Materials should be stored and handled in covered areas to prevent contact with stormwater, and chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff SIGNIFICANT DUST GENERATING PROCESSES Weld County Public Works — Storm Water Management Plan Page 3 of 7 Management of significant dust generating processes should follow EC 14 located in the appendix Disturbed areas not yet ready to be seeded, landscaped, paved, or otherwise stabilized shall be watered, or ripped as necessary to preclude visible dust emissions Contractor shall make every effort to minimize particulate emissions from vehicles performing the work, including but not limited to regular maintenance of construction equipment ROUTINE MAINTENANCE ACTIVITIES Routine maintenance activities should follow MM3 located in the appendix Materials should be stored and handled in covered areas to prevent contact with stormwater, and chemicals should be stored within berms or secondary containment devices to prevent leaks and spills from entering stormwater runoff ON -SITE WASTE MANAGEMENT On -Site waste management practices should follow MM3 located in the appendix Materials storage, waste disposal, and vehicle maintenance and fueling can occur within an enclosed and secure area The area can be enclosed with temporary fencing and accessed through a gate with a lock CONCRETE TRUCK/EQUIPMENT WASHING Concrete truck and equipment washing should follow MM1 located in the appendix A concrete washout facility will be provided onsite Properly wash out concrete trucks and other equipment in a manner and location (a minimum of 50 feet away from any inlet structures) so that the materials and wash water cannot discharge from the site, and never into a storm drain system or stream DEDICATED ASPHALT AND CONCRETE BATCH PLANTS There will be no dedicated batch plant on site NON -INDUSTRIAL WASTE MANAGEMENT Non -Industrial waste management should conform to MM3 located in the appendix Garbage cans shall be located at break areas and portable toilets shall be provided if onsite bathroom facilities cannot be used Locate dumpsters and portable toilets away from drainage courses (minimum 50 feet from any inlet structures) and stake down toilets to prevent tipping SAW CUTTING AND GRINDING The surface being cut shall be wetted to prevent dust To prevent slurry from entering stormwater runoff and discharging from the site, the contractor should use the minimum amount of water necessary to prevent dust Cutting slurry should be collected via vacuum or allowed to dry out and be swept up after cutting is finished OTHER NON -STORM WATER DISCHARGES AND DEWATERING All non-stormwater discharges should conform to SM9 located in the appendix Dewatering activities must be permitted through the state before activities commence Contractor shall obtain CDPHE permit before dewatering commences if required by site constraints Records of spills, leaks, or overflows that result in the discharge of pollutants must be documented and maintained Record all spills that are responded to, even if they do not result in a discharge of pollutants Weld County Public Works — Storm Water Management Plan Page 4 of 7 Information that should be recorded for all occurrences includes the time and date, weather conditions, reasons for the spill, etc. Some spills may need to be reported to immediately. Specifically, a release of any chemical, oil, petroleum product, sewage, etc., which may enter waters of the State of Colorado (which include surface water, ground water and dry gullies or storm sewers leading to surface water) must be reported. More guidance is available on the web at www.colorado.gov. The Division's toll -free 24 -hour number for environmental hazards and chemical spills and releases is 1-877-518-5608. CONSTRUCTION CONTROL MEASURES Sediment Control Logs (SCL): Sedi drainage patterns. Sediment control south, and north sides of the property control logs shall be installed at the point discharge areas where shown throughout the construction process. ment control logs shall be installed with respect to proposed logs shall be constructed along the portions of the east, west, and along any drainage areas subject to erosion. The sediment downhill side of the existing slopes across the site and at all or not, sediment control logs shall be maintained as needed Inlet Protection (IP): Each inlet on the proposed storm sewer system will have a temporary inlet sediment trap constructed around it. In paved areas, this trap consists of wire mesh socks, concrete blocks, and/or screens to filter the storm runoff and allow any silt to settle out. In fields or landscaped areas this trap consists of sediment control logs. permanent Outlet Protection (OP): Each outlet on the proposed storm sewer system will have a temporary outlet scouring protection mat. This mat consists of riprap installed to the height of the culvert or normal channel depth, whichever is less. The riprap shall extend to a length and width necessary to protect downstream adjacent soils from scouring. Riprap type and dimensions are detailed in the plans. Overlot Grading: All overlot grading in the non -irrigated areas will have the surface roughened and will be permanently landscaped or temporarily seeded until the planned installations are completed. Alternately, rough -cut driveways or proposed paved areas can be covered with a layer of aggregate, road base or asphalt paving. Dust Control Measures: Disturbed areas not yet ready to be seeded, landscape, paved, or otherwise stabilized shall be watered, or ripped as necessary to preclude visible dust emissions. INSTALLATION AND REMOVAL SEQUENCE OF CONSTRUCTION MEASURES Vehicle Tracking Control: VTC shall be installed prior to any construction activity, site excavation or earthwork activities. VTC shall be removed once activities that require going from dirt to hardscape are done for the site. Sediment Control Logs (SCL): Sediment control logs shall be installed once overlot grading is completed. The temporary sediment control logs will remain until the storm sewer structures are completed and final stabilization is achieved. Inlet Protection (IP): The inlet protection will be installed as the storm sewer structures are constructed. Inlet protection will remain until the site has been restored. Weld County Public Works — Storm Water Management Plan Page 5 of 7 Outlet Protection (OP) The outlet protection will be installed as the storm sewer structures are constructed Outlet protection will remain until permanent erosion control is installed Overlot Grading All open areas will be treated within 14 days of completion of the overlot grading At the completion of the mass grading, all exposed soil areas will have the surface roughened and planted with revegetation seed mix Vegetation is to be maintained throughout construction by the contractor until areas are permanently landscaped Dust Control Measures Dust control measures shall be provided as soon as soils are being disturbed until the site has been restored PHASING Construction Start Date May 2021 Overlot Grading May 2021. Utility Construction June 2021 Building Construction June 2021 Paving July 2021 Site Restoration August 2021 MAINTENANCE AND INSPECTION REQUIREMENTS The erosion control measures will be inspected every 14 days during construction by the contractor and after each rain event All inspections shall be documented and shall include the date of inspection, any incidence of non-compliance, signed certification that the site is in compliance, and any notes, drawings, maps, etc pertaining to repairs Copies of all documentation shall be distributed to municipalities and owner on a regular basis as specified by owner Sediment should be removed from inlet filters and sediment control logs before one half of the design depth has been filled Sediments deposited outside of the disturbed areas will be removed immediately The temporary vegetation of bare soils will be checked regularly and areas where it is lost or damaged will be reseeded At minimum, the contractor or his agent shall inspect all BMPs every 14 days and after significant precipitation or snow melt events Installations and modifications as required by Weld County will be implemented immediately Corrective actions not taken within 24 hours will result in liquidated damages Contractor shall remove temporary erosion control measures and repair areas as required after vegetation is established and accepted by owner FINAL VEGETATION AND STABILIZATION Permanent landscaping will include vegetative cover to open areas Native perennial seeding will be established in non -irrigated areas through seed drilling and sod or other vegetative cover will be established in irrigated open areas Areas receiving native seed will be covered with wetland topsoil and biotic soil amendments in order to achieve a fertile nesting ground for seeding The Weld County Public Works — Storm Water Management Plan Page 6 of 7 or erosion control blanket soil will be tested for suitability for planting before planting eVorts are coordinated. After seeds have been drilled the areas will be covered with hydromulch in order to protect seedlings until maturation. Final stabilization is reached when all soil disturbing activities at the site have been completed, and uniform vegetative cover has been established with a density of at least 70% of pre -disturbance levels or equivalent permanent and physical erosion reduction methods such as riprap a anketing have been installed. Final stabilization will be achieved using native seedin , permanent BMPs and other methods. The contractor will be responsible for final stabilization FYI - CDPHE does not consider erosion control blanket as an equivalent method of final stabilization. Please remove. SEQUENCE OF CONSTRUCTION ACTIVITIES Construction Sequencing: (Detailed construction sequencing to be determined by the contractor) 1. Installation of temporary erosion and sediment control measures. This includes all sediment control logs and rock socks where all land disturbing activities will occur. 2. Sequence of all land disturbing activity. Land disturbance will occur around the site for utility installation and the construction of the new structures. 3. Drainage facility construction. This includes the installation of evaporation and water quality ponds, valley pans, gutters, inlets, storm piping systems, and new outlet structures. 4. Sediment basins, temporary channel stabilization. Sediment control logs or erosion control blankets will be installed on all slopes tributary to sediment basins. 5. Seeding All disturbed areas will be seeded upon completing of finish grading. 6. Mulching. Spread hydromulch uniformly over seeded areas at a rate of 1500 lbs per acre of ground. No more than 10% of the ground should be visible. Erosion control blankets will be implemented in channelized areas and areas prone to rill erosion. 7. Required maintenance activities (e.g. after -storm checks of all BMPs, etc.). All temporary sediment control BMPs shall be inspected after each rain event to ensure proper protection and to determine if cleaning is necessary. Final cleaning of all storm facilities shall be provided upon final stabilization of site. REFERENCES 1. "Geotechnical Engineering Report Fuel Island Pavement Design", Northern Colorado Geotech, Dated August 18, 2020. 2. "Urban Storm Drainage Criteria Manual", Mile High Flood District, Updated November 2010 version. Weld County Public Works — Storm Water Management Plan Page 7 of 7 II� 1 EET I I .V%H // / / `,\ II ERO610N AND 6EN ENTATION NOME rj `` P / G 1RJ / / y , rL cP / \ I 1. CONTRACTOR IS RESPON94LE FOR WOTALUNDAND WINTANNO ALL CONTROLS DYRWO INTEL. MTERIN ANO MNLCONLIIGNB, . / / `�\ •. •• 2. 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NroRalGLaryN `'1 IEN I(ON F, I Y I , I r //\.\ I ,\ I , 1 I I I / I I I I I D 100 200 — ) — I — I I Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date'. 08/312020 Initials: MEC Date: Comments: Initials MASTER DRAINAGE OVERALL EROSION PLAN CONTROL PLAN I C PUBLIC WORKS DEPARTMENT 1111 H.SXREET P.O. BOX 768 9b0 80632-0068 PHONE: 9870) 04-649 0 - FAX: (870)3048487 No Revisions. 33130 Last Motldled Dale: 1272021 Initials: MEC 09/182020 ISSUE FOR 60% REVIEW MEC full Path. V9]T c u LC WO As 11/062020 ISSUE FOR e6% REVIEW MEC Revised: Designer: EN Dayon Number CE1.0 9 DEW File Name. 3313C-OE-ECP-0O.DWGGREELEE 01272021 ISSUE FOR 100% REVIEW MEC Detwiler MEC Void. Sheet Number 14 of 80 ANoCAD Version: 2020 Scale: AS NOTED Units: En h � - _ - Sheet Subset Sheet Subset: Please refer to the comments in the erosion control sheets of the Master Drainage Plan. ' PUBLIC WORKS OFFICE � RUBBER FILLED ' PONDfi '. �\ SEDIMENT CONTROL d LOGS AGAINST EXISTING \ ; \ - a CB / t •�® LANDSCAPING \ j 'ter A , •$ `\\ BUILDING 1• !• 1 THIS SHEET FUEL SITE ,. v V �: '- I 1 ET�J XISG DRAINAGE FLOWLINE 1 KEYMAP • � N LB WEED SHED \ � WELDING SHED BUILDING2 xyr SALT/SAND SHED \ \ POND 5, EVAP '\ \ BUILDING6 -. . uo*dD1 �c v [RIP'MP RUNDOWN "+ BERMx3RAVELA D V CCESS ROAD $C ` / 911' = �� BERM/GRAVELACC 5 ROAD _ _ - — - 1050 Haas 4fie9 alias u.w 0 100 200 DRAINAGE FLOWUNE WESTERN RETENTION POND Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Dale. 08/312020 Initials. MEC Date: Comments. Initials: MASTER DRAINAGE PLAN Lasl Modirled Dale: 1272021 Initials. MEC 03I11U2020 ISSUE FOR 60% REVIEW MEC K1:, ,: = PUBLIC DEPARTMENT WORKS No Revisions DETAILED EROSION CONTROL PLAN 3313c 11 WORKS S Full Palk mnsr c. 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 GREELEY, CO. 30832-0758 Revised Designer: ETN DravAng Number CE1.1 Drawing Fie Name: 33130-0E-ECP-01.DW3 01272021 ISSUE FOR 100% REVIEW MEC - PHONE: 870)358•IOW De[ailat MEC AutcCADVersion: 2020 Seek: AS NOTED Units: EnBlah - - FAX: (�7D)30a-8{87 Void Sheet Subset: Sheet Subset Sheet Number 15 of 80 Please refer to the comments in the erosion control sheets of the Master Drainage Plan. 7/' 1 -- __ -- __ - 1 --� H STREET i /,, _... __T —. - _ -, -- — THIS SHEET � I . _ .., — BERM � e r s , � I / I- W F— rc, // / Ii*--- ytf r t (SCLI 1 / ...� .cam n CB C7 Ln OND 3 1 b POND i Z Li ml N -- __ -J UL a O ; I 1, %IP W iL CB 0 100 200 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08/31)2020 Initials: MEC Data Comment: Initials MASTER DRAINAGE PLAN Last Modied Date'. 1272021 mists: MEC 09/182020 ISSUE FOR60%REVIEW MEC PUBLIC WORKS DEPARTMENT No Revisions. DETAILED EROSION CONTROL PLAN 3313c FuM Path: V13ti10 rw 1111 H. STREET 111062020 ISSUE FOR 95% REVIEW MEC P.O. BOX 758 Draeing Fite Name: 33130-OE-ECP-0I.DWG 01272021 ISSUE FOR 100% REVIEW MEC O PHONE,(87O) 306358-000070� Revised: Detailerr MEG Drav+inp Number CE1.2 AMOCAD Version: 2020 Soak: AS NOTED Units: En�ish - - - t' �FAX: (870)3D<-Bae7 Void: Sheet Number 18 of 80 Sheet Bobcat: Sheet Subset: Please refer to the comments in the erosion control sheets of the Master Drainage Plan /T2IPRAP' .. MAT f,. •4? PUBLIC WORKS OFFICE s' _ _ D6 �'. \s. Ce \ \\\'.•H BUILDING1 THISSHEET FUELSITE , - � A - _1V vH I 1 � � 1 i u _ r EXISTING DRAINAGE FLOWLINE. , •'> KEYMAP . 1� Nib pyh0 c r I D 0 WEED SHED I Y � IOING2WELDING SHED WE •" �„e SALT/SAND SHED BUILDING \ \ I POND 5• EVAP y\ \ y jt BUILDING6 POND t RIP MAT \ RIPRAP RUNDOWN --------- ,..w ♦ f- ��i�y� - PEc = a CB -;- BERWGRAVEL ACCESS ROAD ` BERM/GRAVELACC SROAD J -v _.. „., RIPRAP MAT _ — , RIPRAP MAT u L/c DRAINv;F FLOWUNE WESTERN RETENTION POND I___ I 1 , rc: Computer File Information Index of Revisions WELD COUNTY PUBLIC WORKS WELD COUNTY Project No./Code Creation Dale: 08/31/2020 Initials: MEG Date. comments: Initials MASTER DRAINAGE PLAN Las'Alotlifea Date. 1272021 Inioak, MEC 0911812020 ISSUE FOR 60% REVIEW MEC - PUBLIC WORKS DEPARTMENT No Revisions PERMANENT EROSION CONTROL PLAN 3313c FIJI Pam. ° 1111 H. STREET 11/082020 ISSUE FOR BS% REVIEW MEC P.O. BOX 755 RwiceO Designer ETN Drawing Dr wi Fig Name 3313C-0E-PECP-01DWO GREELEY, CO. 80632-0758 B Number CE1.3 ^5 01272021 ISSUE FOR 100%REVIEW MEC _ PHONE -. 00 18701356-40Detail., MEC ANcCADVfirswn &*:2020 S: AS NOTED Uik: EnBlnb - FAX (870)304-6487 Void Sheet Subset, Sheet Subset Sheet Number 15 of 80 Please refer to the comments in the erosion control sheets of the Master Drainage Plan. __ -- ••j 1 I-- HSTREET �,• THIS SHEET _ RIPRAP MAT — — BERM / ,r • \ }m '' NTS .TS I .. V ♦� Y I .I -� I u Z .. Z/. z •\\\\ W POND31 : B _ - \ FOND 4 ! RIPRAP MAT RIPRAP MAT ' �R ECH 0 100 200 Feet Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code C eahor Date 08/312020 Intets: MEC Data, Comments: Initials MASTER DRAINAGE PLAN PERMANENT EROSION CONTROL PLAN PUBLIC WORKS DEPARTMENT No Revisions: 3313c Last Modified Dale. 1272021 Initials MEC 081182020 ISSUE FOR 60% REVIEW MEC 1117 H. STREET FuN Path: 11/062020 ISSUE FOR 95% REVIEW MEG � � • , P.O. BOX 788 GREE PHONE: CO.70 356-4-0758 (870) 358-x000 FAX. (970)304-6497 Revised. Designer ETN Drawin Number CE1.4 9 Drawn9 Fie Name: 3313C-OE-PECP-01.D1Mi 07272021 ISSUE FOR 100% REVIEW MEC Detailer MEC Void ' Sheet Number 16 of 80 AutaCAD Version 2020 Swale: AS NOTED Units: EnpYsh - - Sheet Subset Sheet Subset STORMWATER MANAGEMENT PLAN (SWMP) THIS STORMWATER MANAGEMENT PLAN IS TO BE RETAINED AND MAINTAINED ONSITE INCLUDING FINAL LANDSCAPING PLANS AND ANY OTHER EROSION CONTROL DOCUMENTATION. A SWMP ADMINISTRATOR WILL BE DESIGNATED BY THE CONTRACTOR AND IS RESPONSIBLE FOR DEVELOPING, IMPLEMENTING, MAINTAINING, AND REVISING THIS SWMP. THE SWMP ADMINISTRATOR IS THE CONTACT FOR ALL SWMP-RELATED ISSUES AND IS RESPONSIBLE FOR ITS ACCURACY, COMPLETENESS, AND IMPLEMENTATION. THE FOLLOWING HAS BEEN DESIGNATED AS THE SWMP ADMINISTRATOR FOR THIS PROJECT: NAME: CONTACT INFO: THE SITE IS LOCATED AT 1111 H STREET, GREELEY, CO 80631 AND AT APPROXIMATELY 4O026147 LATITUDE, 104°42' 07" LONGITUDE. THE PROPOSED PROJECT CONSISTS OF OVERLOT GRADING, STORM INFRASTRUCTURE, DETENTION POND CONSTRUCTION, AND ASPHALT PAVING CONSTRUCTION IN THE THE CITY OF GREELEY AND WELD COUNTY. THE TOTAL PROPERTY IS APPROXIMATELY 41.3 ACRES WITH AT TOTAL DISTURBANCE OF 5.9 ACRES. NO AREAS GREATER THAN 40 ACRES SHALL BE DISTURBED AT ANY GIVEN TIME. NO CONSTRUCTION ACTIVITIES SHALL OCCUR OFFSITE OR OUTSIDE OF THE CONSTRUCTION LIMITS SHOWN ON THE CONSTRUCTION DOCUMENTS. THE SEQUENCE OF CONSTRUCTION STARTS IS AS FOLLOWS: PHASE ESTIMATED ACTUAL CONSTRUCTION START APRIL, 2021 ROAD AND OVERLOT GRADING MAY, 2021 UTILITY CONSTRUCTION MAY, 2021 PAVING JUNE, 2021 SITE RESTORATION AUGUST, 2021 THE EXISTING SITE CONSISTS OF DEVELOPED LAND AND NATIVE VEGETATION AND IS APPROXIMATELY 10% COVERED WITH VEGETATIVE GROUND COVER. THE ESTIMATED HISTORIC AND DEVELOPED RUNOFF COEFFICIENTS ARE 0.86 AND 0.86. THERE ARE CURRENTLY NO OFFSITE FLOWS ENTERING THE PROPERTY ONSITE FLOWS ARE 192.5 CFS. ONSITE DETENTION IS 5.30 ACRE FEET STORMWATER IS DISCHARGED FROM THIS SITE TOTHE POUDRE RIVER. A DRAINAGE REPORT FOR THIS DEVELOPMENT HAS BEEN SUBMITTED TO THE ENGINEER OF WELD COUNTY. OTHER POTENTIAL POLLUTION SOURCES SUCH AS A FUELING STATION AND MAGNESIUM CHLORIDE TANKS ARE LOCATED IN THE NORTHEASTERN DEVELOPED PORTION OF THE SITE. THE MAJORITY OF THE SITE CONSISTS OF AQUOLLS AND AQUENTS GRAVELLY SUBSTRATUM, WHICH IS OF THE HYDROLOGICAL SOIL GROUP D (HAVING LOW PERMEABILITY RATES AND PRODUCING RELATIVELY HIGH RUNOFF). THE PONDING AND RETENTION AREAS CONSIST OF MOSTLY ELLICOT-ELLICOT SANDY -SKELETAL COMPLEX, WHICH IS OF THE HYDROLOGICAL SOIL GROUP A (HAVING RELATIVELY HIGH PERMEABILITY RATES AND LOW RUNOFF POTENTIAL WHEN THOUROUGHLY WET). BEST MANAGEMENT PRACTICES FOR STORMWATER MANAGEMENT NON STRUCTURAL BMPS WILL BE IMPLEMENTED TO THE MAXIMUM EXTENT POSSIBLE. THE UTILIZATION OF NON STRUCTURAL BMPS WILL BE AN ONGOING PROCESS DIRECTED AT PREVENTING EROSION. THE NON STRUCTURAL BMPS WILL RECEIVE CONTINUOUS EMPHASIS THROUGHOUT CONSTRUCTION BECAUSE THEY AVERT PROBLEMS BEFORE THEY OCCUR AND REDUCE THE NEED FOR STRUCTURAL BMPS. NON STRUCTURAL BMPS WILL CONSIST PRIMARILY OF PRESERVATION OF EXISTING MATURE VEGETATION AND TREES, PLANNING AND SCHEDULING CONSTRUCTION ACTIVITIES AIMED AT ACHIEVING THE GOAL OF MINIMIZING EROSION. FURTHERMORE, CONSTRUCTION PERSONNEL WILL BE INSTRUCTED AND SUPERVISED IN CONSTRUCTION METHODS CONSISTENT WITH EROSION PREVENTION PRACTICES. PLANNED STRUCTURAL BMPS FOR EROSION AND SEDIMENT CONTROL ARE SHOWN ON THE EROSION AND SEDIMENTATION CONTROL PLAN. IMPLEMENTING THESE MEASURES SHOULD MINIMIZE NUISANCE SILT AND SEDIMENTATION EXITING THE SITE AND PREVENT CLOGGING EXISTING STORM SEWERS AND STREET GUTTERS. APPLICATION OF THESE BMPS FOR STORMWATER MANAGEMENT ARE FOR CONSTRUCTION PERIODS AND ARE CONSIDERED TEMPORARY. POST -DEVELOPMENT STORM WATER MANAGEMENT IS PROVIDED THROUGH VEGETATED LANDSCAPED AREAS, GRASSED SWALES, RIPRAP PROTECTION, STORM COLLECTION SYSTEM, AND THE UTILIZATION OF THE PERMANENT DETENTION AND WATER QUALITY POND. Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date: 08/312020 Initials MEC Date Comments Initials MASTER DRAINAGE PLAN Last Modified Date. 12/172020 Initials. MEC 09/18/2020 ISSUE FOR 60% REVIEW MEC lmo .-- PUBLIC WORKS DEPARTMENT No Revisions SWMP 3313c yr icWEL cUu uLc o w.E 1111 H. STREET Full Path. 11/062020 ISSUE FOR 95% ETN i Desgner REVIEW MEC P.O. BO%758 GREELEY. CO. 80632-0758 Revised. Dravnng Number CE1.3 Drawing File Name. 33130-0E-ECP-DET-00DVUG 01272 100021 ISSUE FOR 100°k REVIEW MEC PHONE' 1f970) 3564000 Detailer MEC AutoCAD Version 2020 Scale: AS NOTED Units. Engbsh - - FAX' (870)3044497 Void. Sheet Subset Sheet Subset Sheet Number 19 of 80 SEDIMENT CONTROL LOGS (SCL): SEDIMENT CONTROL LOGS SHALL BE INSTALLED WITH RESPECT TO PROPOSED DRAINAGE PATTERNS. SEDIMENT CONTROL LOGS SHALL BE CONSTRUCTED ALONG THE PORTIONS OF THE ENTIRE PROPERTY AND ALONG ANY DRAINAGE AREAS SUBJECT TO EROSION. THE SEDIMENT CONTROL LOGS SHALL BE INSTALLED AT THE DOWNHILL SIDE OF THE EXISTING SLOPES ACROSS THE SITE AND AT ALL POINT DISCHARGE AREAS WHETHER SHOWN OR NOT, SEDIMENT CONTROL LOGS SHALL BE MAINTAINED AS NEEDED THROUGHOUT THE CONSTRUCTION PROCESS. THE TEMPORARY SEDIMENT CONTROL LOGS WILL REMAIN UNTIL THE STORM SEWER STRUCTURES ARE COMPLETED AND GROUND COVER IS EFFECTIVE AND FINAL STABILIZATION IS ACHIEVED. INLET PROTECTION (P): THE INLET PROTECTION WILL BE INSTALLED AS THE STORM SEWER STRUCTURES ARE CONSTRUCTED. EACH INLET ON THE PROPOSED STORM SEWER SYSTEM WILL HAVE A TEMPORARY INLET SEDIMENT TRAP CONSTRUCTED AROUND IT. IN PAVED AREAS, THIS TRAP CONSISTS OF WIRE MESH SOCKS OR CONCRETE BLOCKS TO FILTER THE STORM RUNOFF AND ALLOW ANY SILT TO SETTLE OUT. IN FIELDS OR LANDSCAPED AREAS THIS TRAP CONSISTS OF SEDIMENT CONTROL LOGS. OUTLET PROTECTION (OP): THE STORM SEWER OUTLETS WILL BE PROTECTED WITH RIPRAP. PLACING RIPRAP AT PIPE OUTFALLS REDUCES EXIT VELOCITIES AND REDUCES SCOUR. THIS RIPRAP WILL BE LEFT IN PLACE AS PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN. OVERLOT GRADING: ALL OPEN AREAS WILL BE TREATED WITHIN 14 DAYS OF COMPLETION OF THE OVERLOT GRADING. ALL OVERLOT GRADING IN THE NON -IRRIGATED AREAS WILL HAVE THE SURFACE ROUGHENED AND WILL BE PERMANENTLY LANDSCAPED OR TEMPORARILY SEEDED UNTIL THE PLANNED INSTALLATIONS ARE COMPLETED. AT THE COMPLETION OF THE MASS GRADING, ALL EXPOSED SOIL AREAS WILL HAVE THE SURFACE ROUGHENED AND PLANTED WITH A REVEGETATION SEED MIX. VEGETATION IS TO BE MAINTAINED THROUGHOUT CONSTRUCTION BY THE CONTRACTOR UNTIL AREAS ARE PERMANENTLY LANDSCAPED. ALTERNATELY, ROUGH -CUT DRIVEWAYS OR PROPOSED PAVED AREAS CAN BE COVERED WITH A LAYER OF AGGREGATE, ROAD BASE OR ASPHALT PAVING. DUST CONTROL MEASURES: DISTURBED AREAS NOT YET READY TO BE SEEDED, LANDSCAPED, PAVED, OR OTHERWISE STABILIZED SHALL BE WATERED, OR RIPPED AS NECESSARY TO PRECLUDE VISIBLE DUST EMISSIONS. ITEMS ARE SCHEDULED TO BE IMPLEMENTED ACCORDING TO THE CONSTRUCTION SCHEDULE. AS WORK PROCEEDS, IMPLEMENTATION OF INDIVIDUAL BMPS IS TO COINCIDE WITH THE CONSTRUCTION THEREBY MINIMIZING THE EXPOSURE OF UNPROTECTED AREAS. THE INLET PROTECTION (FOR EXISTING INLETS), AND VEHICLE TRACKING CONTROL OF THE CONSTRUCTION ENTRANCE WILL BE PERFORMED WHEN THE GRADING BEGINS. THE INLET PROTECTION WILL BE INSTALLED AS THE STORM SEWER STRUCTURES ARE CONSTRUCTED. THE RIPRAP PROTECTION WILL BE INSTALLED AS THE STORM SEWER OUTFALLS OR CULVERTS ARE CONSTRUCTED. THE STRUCTURAL BMPS THAT DO NOT BECOME PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN ARE TO BE REMOVED, AS THE PAVING, LANDSCAPING, AND OTHER PERMANENT GROUNDCOVER INSTALLATIONS ARE COMPLETED. FUGITIVE DUST EMISSIONS RESULTING FROM GRADING ACTIVITIES AND/OR WIND SHALL BE CONTROLLED USING THE BEST AVAILABLE CONTROL TECHNOLOGY AS DEFINED BY THE COLORADO DEPARTMENT OF HEALTH AT THE TIME OF GRADING. THE GRAVELING IS TO BE MAINTAINED AND EXTENDED CONSTRUCTION PROGRESSES ESPECIALLY AROUND THE BUILDING SITE. THE STRUCTURAL BMPS ARE TO BE REMOVED, AS THE PERMANENT LANDSCAPING INSTALLATIONS ARE COMPLETED. THE EROSION AND SEDIMENT CONTROL PLAN MAY BE MODIFIED BY THE OWNER'S ENGINEER, COUNTY ENGINEERING INSPECTORS,OR WELD COUNTY OR ITS AUTHORIZED REPRESENTATIVE AS FIELD CONDITIONS WARRANT. STORMWATER DETENTION AND WATER QUALITY: WATER QUALITY TREATMENT IS PROVIDED ONSITE IN WATER QUALITY AREA. THE PROPOSED DETENTION AREAS WILL BE UTILIZED AS EVAPORATION PONDS, WQCV PONDS AND GRASS SWALES. Index of Initials MEC MEC 1 09182020 11122E FOR 60% REVIEW I MEC 11/082020 1252E FOR 85% REVIEW MEC -00.DWG I I 01272021 ISSUE FOR 100% REVIEW I MEC 2020 Scab: WELD CO PUBLIC WORKS DEPARTMENT 1111 H.STREET P.O. BOX 758 GREELEY, CO. 80632-0758 PHONE: (970) 3564000 FAX: (970) 304_6497 No Revisions Revised: Void: :LD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN SWMP Sheet Subset: MEC Sunset Project No, /Code 3313c Orav ng Number CE1.4 Sheet Number 20 of 80 TEMPORARY SEEDING AND MULCHING: ALL SEEDS FURNISHED SHALL BE FREE FROM NOXIOUS SEEDS (SUCH AS RUSSIAN OR CANADIAN THISTLE, COURSE FESCUE, EUROPEAN BINDWEED, JOHNSON GRASS, KNAPWEED, AND LEAFY SPURGE. THE FORMULA USED FOR DETERMINING THE QUALITY OF PURE LIVE SEED (PLS) SHALL BE (POUNDS OF SEED) X (PURITY) X (GERMINATION) = POUNDS OF PURE LIVE SEED (PLS). SEEDING RECOMMENDATIONS ARE PROVIDED BELOW, BUT MAY BE MODIFIED WITH THE OWNER'S APPROVAL TO MAKE THE BEST USE OF EXISTING CLEARINGS AND GRUBBINGS: SPECIES COMMON NAME VARIETY LBS/ACRE AGROPYRON SMITHI WESTERN WHEATGRASS ARRIBA 8.0 ARRHENATHERUM ELATES TALL OATGRASS 3.0 LOLIUM PERENNE PERENNIAL RYEGRASS PENNFINE 2.0 ALL SEEDS SHALL BE DRILLED NOT HYDROSEEDED. ALL DISTURBED AREAS SHALL BE SEEDED AND HYDROMULCHED IF PERMANENT VEGETATION IS NOT IMMEDIATELY INSTALLED. THE SEEDED AREA SHALL BE HYDROMULCHED AND THE MULCH ATTACHED WITHIN TWENTY-FOUR (24) HOURS AFTER SEEDING. AREAS NOT MULCHED AND ATTACHED WITHIN TWENTY-FOUR (24) HOURS AFTER SEEDING MUST BE RESEEDED WITH THE SPECIFIED MIX AT THE CONTRACTOR'S EXPENSE, PRIOR TO MULCHING AND ATTACHING. ON STEEP SLOPES OR OTHER SPECIFIED AREAS AS SHOWN ON THE PLANTING PLAN, WHICH ARE DIFFICULT TO MULCH AND ATTACH BY CONVENTIONAL METHOD, BURLAP OR OTHER BLANKETING MATERIALS PROPERLY ANCHORED AND SECURED MAY BE USED WHEN APPROVED BY THE WELD COUNTY ENGINEER. PERMANENT STABILIZATION MEASURES: RIPRAP FOR STORM DRAIN OUTFALLS AND ROCK CHECK DAMS WILL BECOME PART OF THE PERMANENT STORMWATER MANAGEMENT PLAN AND WILL NOT BE REMOVED. PERMANENT LANDSCAPING WILL INCLUDE SODDING, SEEDING, OR OTHER VEGETATIVE COVER TO OPEN AREAS. NATIVE PERENNIAL SEEDING WILL BE ESTABLISHED IN NON -IRRIGATED AREAS AND SOD OR OTHER VEGETATIVE COVER WILL BE ESTABLISHED IN IRRIGATED OPEN AREAS. ALL PERMANENT STABILIZATION MEASURES WILL BE SPECIFIED BY THE LANDSCAPE ARCHITECT OR OWNER. MATERIALS AND SPILL PREVENTION: THE CONTRACTOR WILL STORE CONSTRUCTION MATERIALS AND EQUIPMENT IN CONFINED AREAS ON SITE FROM WHICH RUNOFF WILL BE CONTAINED AND FILTERED. MATERIALS WILL BE STORED OFF THE GROUND AND PROTECTED FROM THE WEATHER BY A COVER OR STORED IN A CONTAINER SUCH AS A VAN OR TRAILER. AN EARTHEN DIKE WILL BE CONSTRUCTED AROUND THE PERIMETER OF THE FUEL STORAGE AREA TO PREVENT MATERIALS FROM CONTACT WITH SURFACE RUNOFF. EQUIPMENT MAINTENANCE WILL BE PERFORMED IN A DESIGNATED AREA AND STANDARD MAINTENANCE PROCEDURES, SUCH AS THE USE OF DRIP PANS, WILL BE USED TO CONTAIN PETROLEUM PRODUCTS. CONCRETE WASHOUT TO BE PERFORMED AWAY FROM CONVEYANCES IN A PREFABRICATED CONCRETE WASHOUT STRUCTURE. INSPECTION AND MAINTENANCE: THE EROSION CONTROL MEASURES WILL BE INSPECTED DAILY DURING CONSTRUCTION BY THE CONTRACTOR AND AFTER EACH RAIN EVENT. ALL INSPECTIONS SHALL BE DOCUMENTED AND SHALL INCLUDE THE DATE OF INSPECTION, ANY INCIDENCE OF NON-COMPLIANCE, SIGNED CERTIFICATION THAT THE SITE IS IN COMPLIANCE, AND ANY NOTES, DRAWINGS, MAPS, ETC. PERTAINING TO REPAIRS. COPIES OF ALL DOCUMENTATION SHALL BE DISTRIBUTED TO THE COUNTY AND OWNER ON A REGULAR BASIS AS SPECIFIED BY OWNER. SILT FENCE AND STRAW BALE BARRIERS WILL BE CHECKED FOR UNDERMINING AND BYPASS AND REPAIRED OR EXPANDED AS NEEDED. SEDIMENT SHOULD BE REMOVED FROM INLET FILTERS AND SILT FENCING BEFORE ONE HALF OF THE DESIGN DEPTH HAS BEEN FILLED. SEDIMENTS DEPOSITED IN THE PUBLIC RIGHTS -OF -WAY WILL BE REMOVED IMMEDIATELY. THE TEMPORARY VEGETATION OF BARE SOILS WILL BE CHECKED REGULARLY AND AREAS WHERE IT IS LOST OR DAMAGED WILL BE RESEEDED. AT MINIMUM THE CONTRACTOR OR HIS AGENT SHALL INSPECT ALL BMPS EVERY 14 DAYS AND AFTER SIGNIFICANT PRECIPITATION OR SNOWMELT EVENTS. INSTALLATIONS AND MODIFICATIONS AS REQUIRED BY THE WELD COUNTY WILL BE IMPLEMENTED IMMEDIATELY AS OF NOTIFICATION. CONTRACTOR SHALL REMOVE TEMPORARY EROSION CONTROL MEASURES AND REPAIR AREAS AS REQUIRED AFTER VEGETATION IS ESTABLISHED AND ACCEPTED BY OWNER AND MUNICIPALITY. FINAL STABILIZATION AND LONG-TERM STORMWATER QUALITY: FINAL STABILIZATION IS REACHED WHEN ALL SOIL DISTURBING ACTIVITIES AT THE SITE HAVE BEEN COMPLETED, AND UNIFORM VEGETATIVE COVER HAS BEEN ESTABLISHED WITH A DENSITY OF AT LEAST 70% OR PRE -DISTURBANCE LEVELS OR EQUIVALENT PERMANENT, PHYSICAL EROSION REDUCTION METHODS HAVE BEEN EMPLOYED. FINAL STABILIZATION WILL BE ACHIEVED USING SOD, NATIVE SEEDING, PERMANENT BMP'S, AND OTHER METHODS. CONTRACTOR SHALL BE RESPONSIBLE FOR FINAL STABILIZATION REGARDLESS OF ACCEPTANCE BY OWNER OF THE CONTRACTOR ITEM. Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Creation Date. 06/312020 Initials MEC Date Comments. Initials. MASTER DRAINAGE PLAN Last Modified Date. 12/172020 Initials MEC 091162020 ISSUE FOR 60% REVIEW MEC any .C PUBLIC WORKS DEPARTMENT No Revisions SWMP 3313c v X13 or. u u i Wo a MASTER AUAFE 1111 H STREET Full Path. 11/062020 ISSUE FOR 95% REVIEW MEC P.O. BO)35B 32.0758 Revised. Designer ETN Dravang Number CE1.5 Orawi Fik Name' 3313C-OE-ECP-DST-OO.DVVG GREENS CO 60640DO n9 01272021 ISSUE FOR 100Ya REVIEW MEC „v PHONE' 1CO. 3564000 Detwiler MEC FAX. (70)304-6497 AutoCAD Version'. 2020 Scak. AS NOTED Units. Eng4sh - - - } " Void Sheet Subset Sheet Subset. Sheet Number 21 of 80 n ROCK SOCK T GRATE a SEE ROCK SOCK DETAIL FOR JOINTING IP-3. ROCK SOCK SUMP/AREA INLET PROTECTION CANERAI INLET PROTECTION INSTALLATION NO C 1. SEE PLAN VIEW FOR: -LOCATION OF INLET PROTECTION. -TYPE OF INLET PROTECTION (IP.1, IP.2. IP.3, IP.4, IP 5. (P.6) 2. INLET PROTECTION SHALL BE INSTALLED PROMPTLY AFTER INLET CONSTRUCTION OR PAVING IS COMPLETE (TYPICALLY WITHIN 48 HOURS). IF A RAINFALL/RUNOFF EVENT IS FORECAST. INSTALL INLET PROTECTION PRIOR TO ONSET OF EVENT. 3. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. INLET PROTECTION MAINTENANCE NOTES 1. INSPECT BMP9 EACH WORKDAY. MID MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BMP9 SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMP9 AS SOON AS POSSIBLE (MID ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPs HAVE FAILED. REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4. SEDIMENT ACCUMULATED UPSTREAM OF INLET PROTECTION SHALL BE REMOVED AS NECESSARY TO MAINTAIN BMP EFFECTIVENESS, TYPICALLY WHEN STORAGE VOLUME REACHES 50% OF CAPACITY. A DEPTH OF 6' WHEN SILT FENCE IS USED. OR Y, OF THE HEIGHT FOR STRAW BALES. 5 INLET PROTECTION IS TO REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED. UNLESS THE LOCAL JURISDICTION APPROVES EARLIER REMOVAL OF INLET PROTECTION IN STREETS. 6. WHEN INLET PROTECTION AT AREA INLETS IS REMOVED, THE DISTURBED AREA SHALL BE COVERED WITH TOP SOIL. SEEDED AND MULCHED, OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCK JURISDICTION (DETAa AOAPIED FROM TOSN OF PMNER. ODUGRAOo MO CITY OF a910RA, IXKONF00. NOT ANARAKE IN AYTOCW) NOTE; MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCK JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. NOTE: INC DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL METHODS OF INLET PROTECTION IN THE DENVER METROPOLITAN AREA. THERE ARE MANY PROPRIETARY INLET PROTECTION METHODS ON ME MARKET. UDFCD NEITHER ENDORSES NOR DISCOURAGES USE or PROPRIETARY INLET PROTECTION; HOWEVER, IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWMP AND THE BMP MUST BE INSTALLED AND MAINTAINED AS SHOWN IN ME MANUFACTURER'S DETAILS. NOTE; SOME MUNICIPAUTIES DISCOURAGE OR PROHIBIT THE USE OF STRAW BALES FOR INLET PROTECTION. CHECK WITH LOCAL JURISDICTION TO DETERMINE IF STRAW BALE INLET PROTECTION IS ACCEPTABLE. L.omputer rile Imormatlon Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN EROSION CONTROL DETAILS Project No./Code Creation Date: 08/312020 Initials: MEC Date: Comments: Initials. PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY, CO. OD832-075e PHONE : (970) 35&4000 ..FAX: (970) 3046497 No Revision.: LasLMotlirie00ate: 12/172020 Initials MEC 3313c 091182020 ISSUE FOR 60% REVIEW MEC Full Palk VOmC u Le MACE 111062020 ISSUE FOR 95% REVIEW MEC Revised: Designer: ENDrevAng Number CE16 Drawing File Name: 3313C-OE-ECP-DET-OO.DWG 01272021 ISSUE FOR 100% REVIEW MEC Detailer: MEC Void: AutoCAD Version. 2020 Scale: AS NOTED Unib: Eoglsh - - Sheet Number 22 of 80 Sheet Subset Sheet Sunset Inlet Protection (IP) SC -6 SC -6 Inlet Protection (IP) F� GENERAL INLET PROF CTII ON INSTALLATION MOlts r I. SEE PLAN VIEW FOR: -LOCATION OF INLET PROTECTION. -TYPE OF INLET PROTECTION (IP.1. IP.2. IP.3. IP.4. PS, IP.6) FLOW ' D (t2' MIN) 2. INLET PROTECTION SHALL BE INSTALLED PROMPTLY AFTER INLET CONSTRUCTION OR PAYING B IS COMPLETE (TYPICALLY WITHIN 48 HOURS). IF A RAINFALL/RUNOFF EVENT IS FORECAST, INSTALL INLET PROTECTION PRIOR TO ONSET OF EVENT. CULVERT 3. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. ENO SECTION CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN BACKFILL UPSTREAM ROCK DIFFERENCES ARE NOTED ROCK SOCK OF WATTLE SOCK INLET PROTECTION MAINTENAN CULVERT INLET PROTECTION SECTION A PLAN 10- MIN. KEY IN ROCK SOCK 0' ON BEDROCK, PAVEMENT OR RIPRAP KEY IN ROCK SOCK 2ON EARTH SECTION B CIP-1. CULVERT INLET PROTECTION CU RT IN ET PROF TION INST L I ATION HO S 1. SEE PLAN VIEW FOR —LOCATION OF CULVERT INLET PROTECTION. 2. SEE ROCK SOCK DESIGN DETAIL FOR ROCK GRADATION REQUIREMENTS AND JOINTING DETAIL. CULVERT IN ET PROTECTION MAIN N NOT S 1. INSPECT BMPe EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE Of BMPe SHOULD BE PROACTIVE. NOT REACTIVE. INSPECT BMPe AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION. AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPe IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMP, HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF THE CULVERT SMALL BE REMOVED WHEN THE SEDIMENT DEPTH IS ly THE HEIGHT OF THE ROCK SOCK. 5. CULVERT INLET PROTECTION SMALL REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED AND APPROVED BY THE LOCAL JURISDICTION. (rA1L4 *WPtW ANON wIt iA CO. tSOO. NOT MNV6t N w10CM) NOTE: MANY JURISDICTIONS HAVE SUP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. uomputer Elie Information Index of Revisions WELD Date. 08/312020 Initials MEC Date Comments Imtials - lifted Dale. 12/172020 Initials MEC 08/182020 ISSUE FOR 60%REVIEW MEC VflIC*€DGQUN1V PLJLIC WORKS !M PtAM Avauna 11/062020 ISSUE FOR 95°h REVIEW MEC FLeName. 3313C-OE-ECP-DET-OO.DWG 01272021 ISSUE FOR ¶00% REVIEW MEC ,II ,n -,a !__L 1111^TO 11 -1 -.CC PUBLIC WORKS DEPARTMENT lit? H. STREET P.O. BOx 758 GREELEY. CO. OD632-0758 PHONE 70) 356-4000 FAX- (70)304-6497 1. INSPECT SIP. EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF AMP, SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BMP, AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATICNS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMP, IN EFFECTIVE OPERATING CONDITION. INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPe HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF INLET PROTECTION SHALL BE REMOVED AS NECESSARY TO MAINTAIN SUP EFFECTIVENESS, TYPICALLY WHEN STORAGE VOLUME REACHES 50% OF CAPACITY, A DEPTH OF 6" WHEN SILT FENCE IS USED, OR Z OF THE HEIGHT FOR STRAW BALES. 5 INLET PROTECTION IS TO REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED. UNLESS THE LOCAL JURISDICTION APPROVES EARLIER REMOVAL OF INLET PROTECTION IN STREETS. 6. WHEN INLET PROTECTION AT AREA INLETS IS REMOVED, THE DISTURBED AREA SHALL BE COVERED WITH TOP SOIL, SEEDED AND MULCHED, OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION. (DETAIL A0*Ito fROM TOM OF PMNLA. CGOIt.00 ANO GIY or ,WAORA OGLRDO. NOT M,WAB[ In wTOCAO) NOTE; MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS, CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN OIFFERENCES ARE NOTED. NOTE THE DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL METHODS OF INLET PROTECTION IN THE DENVER METROPOLITAN AREA. THERE ARE MANY PROPRIETARY INLET PROTECTION METHODS ON THE MARKET. UOFCO NEITHER ENDORSES NOR DISCOURAGES USE OF PROPRIETARY INLET PROTECTION; HOWEVER. IN THE EVENT PROPRIETARY METHODS ARE USED. THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWUP AND THE BMP MUST BE INSTALLED AND MAINTAINED AS SHOWN IN THE MANUFACTURER'S DETAILS. NOTE; SOME MUNICIPALITIES DISCOURAGE OR PROHIBIT THE USE OF STRAW BALES FOR INLET PROTECTION. CHECK WITH LOCAL JURISDICTION TO DETERMINE IF STRAW BALE INLET PROTECTION IS ACCEPTABLE. MASTER DRAINAGE PLAN NO Revisions: EROSION CONTROL DETAILS Reviled: Void. Sheet Subset MEC Project No./Code 3313c Draveng Number CE1.7 Sheet Number 22 of 80 Vehicle Tracking Control (VTC) SM-4 SM-4 Vehicle Tracking Control (VTC) VTC VTC CM TR OR I SEE PLANT HEIR PCO -LOCAI S1 10N EMRANC/txIr s)( or o TFNiciAiN CONSTRUCTION EnTNAnCE(S)/ExNS(57 (wIM/IMtNWT wnEEL WASH, ONSE C CONSTRUCTION MAT OR mN). 2 CONSTRUCTION MAT OR ARM STABILIZED CONSTRUCTION ENTRANCES PRE ONLY TO BE USED ON SHORT DURAnON PROJECTS (TYPICALLY RANGING FROM A WEEK TO A MONTH) DISTURBED AREA, WHERE THERE MU, BE LIMITED VEHICULAR ACCESS. CONSTRUCTION 5AE. 106 MAY—.� STABIuzm STORADE AREA 3. A STApNHD CONSTRUCTEN ION TRANCE/ENT SHALL ALL ES BC LOCATED AT ACCESS POINTS �. OR SrACING AREA WHERE VEHICLES ACCESS THE CONSTRUCTION SITE FROM PMED RIDHT -OF - WAYS. LAISTING PA,/E6 4 STABILIZED CONSTRUCTION ENN TRANCE/EXIT SMALL BE STALLED PRIOR r0 ANY LAND ROADWAY CONSTRUCTION MATS, WOVEN OR TRIM O15TURMINO ACTMTIf5. A NON -WOVEN GEOIEXRLE FABRIC SHALL BE PLACED UNDER THE STABILIZED CONSTRUCTION ENTRANCE/EXH PRIOR 10 THE PLACEMENT OF ROCK 6. UNLESS OTHERWISE SPECIFIED BY LOCAL JURISDICTION. ROCK SHALL CONSIST OF DOT SECT 1703. MSMO /3 COARSE AGGREGATE OR 6 (MINUS) ROCK. COI STABILIZED Jfl%JCT ONEt1jI?•AyCE/Ear MAw1€NAgr_r NOTES I INSPECTNP. EACH WORKDAY, AND MNTAN THEM N EFFECTIVE OPERATING CONDITION I • MIN MAINTENANCE OF BNPI SHOULD BE PROACTIVE, Not REACTAE. INSPECT NAPA AS SOON AS CF'.LO SPIKES OR -` POSSIBLE (AND ALWAYS MTHIN 34 HOURS) FCILOWRIG A STORM THAT CAUSES SURFACE STAKES EROSION. AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINIENNICE W. NECESSARY r0 MAINTAIN BNPc IN .n r� 6,�A 'SO�V�'',Jr-SA' 'RU (NO OVERLAP NTH vE OPEft1WC CONDITION INSPECTIONS AND CORRECTNE MEASURES SHOULD BE JV' OD0CUMENTED $PIKE$ OR $iAx� OOCLJU MOROUGHLY. l� CONSTRUCTION MATS. KW EN tiq.E't `•_ jVCR TT()RfMFORCEMENt STRM CONNECTORS J. WHERE BNFA HAVE FNLCO. RERAN OR REPLACEMENT SHOULD BE NRNICD UPON DISCOVERY OF THE FAILURE J'�(T ♦. Rocn SHALL ut IrLN'FUW ON REGRADED AS NECESSARY TO THE STABILIZED COMSRB1CITdI WT ENO ENTRANCE/Exlt TO "MINN A CONSISTENT DEPTH_ RESTRICT COAST. VEHICLE ONALJ4 INTERLOCK WIN5. ACCESS TO SIDES Of SAT - STRM COP*CCTOR5 MENT _ AY AND ODAY ONTOPAVEDD DNot TBEHWASHED PSHOKUNDC = AT THE END OF THE ON SWEEPING. SSEEDMENT MAY N DOWN STORM SEWER DRINKS. T 20 OR AS REMORED MY ECO 0 EO OETNL6. YY FROM DBE CONS LOCAL JUCNR15C4COONS TDETAIL TO ACCOMMODATE SILT "N AS TO WHICIN SHOULD USED NVNCIPNED DIFFERENCES ARE NOTED. TRAFf1C (WIDTH (Wa, Apwm nqu brr rc llCOCf1 . ftl8t' . NT Av.WNar H WOGfn CAN BE LESS IF COAST. YHCLES ARE PHYSICALLY CONFINED Oti BOTH SIDES) VTC-3 VEHICLE TRACKING CONTROL W/ CONSTRUCTION MAT OR TURF REINFORCEMENT MAT (TRM) November 2_01O Urban Drainage and Flood Control District V'IY''5 Urban Storm Drainage Criteria Manual Volume 3 VTC-b Urban Drainage and Flood Control District November 2010 Urban Smnn Drainage Criteria Manual Volume 3 Computer File Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS Project No./Code Create, Date: 08/312020 Initials MEC Date: Comments: Initials. MASTER DRAINAGE PLAN EROSION CONTROL DETAILS PUBLIC WORKS DEPARTMENT 1111 No Revisions: 3373c Last Modified Date: 12/172020 Initials: MEC 09118/2020 ISSUE FOR 60% REVIEW MEG full Path: vl 1 L N PUBLIC MASTER 11/082020 ISSUE FOR 95% REVIEW MEC P.O.. BOX BOX 758 GREELEY, CO. 80632-0758 PHONE:(870)35864000 FAX: (870)304-9497 Rm'laad: Designer: ETN DraN1ng Number CE1.8 Dr ing File Herne: 3313E-0E-ECP-DET-0O.DWG 01272021 ISSUE FOR 100% REVIEW MEC Detwiler MEG Void: Sheet Number 24 of 80 AuIICRD Venun: 2020 Sala: AS NOTED Unds: ETIBE6h _ _ _ Sheet Subset: Sheet Subset Concrete Washout Area (CWA) MM-i ID VDMCLE TRACKING CONTROL (SEE VTC DETAR) OR OMEN ST LE SURFACE CONCRETE WASHOUT AREA PLAN 12' iN. COMPACTED E6RM ARDUNO 1 a4 fNIE PENNETER f— `l I 1A SLOP[. UNOIsiURBED ORi IT � COMPACTED SOR VEHICLE TRACKING B X B MIN. CONTROL (SEE VTC SECTION A MTML I CWA-1. CONCRETE WASHOUT AREA CWA INSTALLATION NOTES 1. SEE PLAN VIEW F. -CWA INSTALLATION LOCATION 2. DO NOT LOCATE M UNLINED CWA WITHIN ADO' OF MT NATURAL DRANKE PATHWAY OR WATERBODY. DO NOT LOCATE WITHIN ;.000' DF ANY WELLS OR DRINKING WATER SOURCES. IF SITE CONSTRAINTS MAKE THIS INFEASIBLE. OR IF HIGHLY PEAMFABLE SOILS VISIT NN SITE, THE CWA MUST BE INSTALLED WITH M IMPERMEA$E LINER (16 ML ON THICKNESS) OR SURFACE STORAGE ALLERIAtPVES USING PREFABRICATED CONCRETE WASHWt DEVICES OR A UNED ABOI GROUND STORAGE ARE SHOULD BE USED. 3. TINE CWA SN11 BE NSrAUEO PRIDR TO CONCRETE PLACEMENT ON STE. 4. CWA SFMLL INCLUDE A FLAT SUBSURFACE At INAr IS Ar LEAST a' BY B' SLOPES LEAONG OUT OF THE SUBSURFACE PIT SHALL BE 31 OR FLATTER THE PR SHALL BE AT LEAST 3 DEEP. 5 BERM SURROUNDING SIDES AHO BACK OF ME CWA SHULL HAVE NNIMUM CC&41 OF I' 6. VEHICLE TRACKING PAD SHAU. BE SLOPED 2A TOWMOS TIE CWA T SIGNS SHALL BE PLACED AT LHE CONSTRUCTION ENTRANCE, AT THE CO, NO ELSEV4IERE AS NECESSARY TO CLEARLY INDICATE THE LOCATION OF Ti CWM TO OPERATORS OF CONCRETE TRUCKS AND PUMP RICS. 8. USE EXCAVATED (TEAL FOR PERIMETER &RN CONSTRUCTION. November 2010 Urban Drainage and Flood Control District CWA-? Ulan Storm Drainage Criteria Manual Volume 3 CWA MAINTENANCE NOTES 1. INSPECT BMPi EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF AMP, SHOULD BE PROACTIVE, NOT REACTIVE. INSPECT BAPS AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE. 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPS IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPB HAVE FAILED. REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. THE CWA SHALL BE REPAIRED, CLEANED, OR ENLARGED AS NECESSARY TO MAINTAIN CAPACITY FOR CONCRETE WASTE. CONCRETE MATERIALS, ACCUMULATED IN PIT, SHALL BE REMOVED ONCE THE MATERIALS HAVE REACHED A DEPTH OF 2. S. CONCRETE WASHOUT WATER, WASTED PIECES OF CONCRETE AND ALL OTHER DEBRIS IN THE SUBSURFACE PIT SMALL BE TRANSPORTED FROM THE JOB SITE IN A WATER -TIGHT CONTAINER AND DISPOSED OF PROPERLY. 6. THE CWA SHALL REMAIN IN PLACE UNTIL ALL CONCRETE FOR THE PROJECT IS PLACED. 7. WHEN THE CWA IS REMOVED, COVER THE DISTURBED AREA WITH TOP SOIL, SEED AND MULCH OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION, (IkEML ADAPEW FROM DOUGLAS COUNTY. COLORADO MID DIE CITY OF PAMrER. COLORADO. NOT AWABt£ W Mf100 0). INOTE. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCO STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. Computer vile Information Index of Revisions WELD COUNTY WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN EROSION CONTROL DETAILS Project No, /Code Creation Date: 06131/2020 Initials MEC Date. Comments Initials PUBLIC WORKS DEPARTMENT 1111 H.STREET P.O. BOX 758 GREELEY, CO. 806320758 M PHONE: (870) 356-4000 - FAX: (870)304-8487 No Revisions: 3313c Iasi Modified Dole: 12/170020 Initials MEC 0&182020 ISSUE FOR 60% REVIEW MEC vl 1 L oNKs MASTER Full Path: - 11MM20 ISSUE FOR 95% REVIEW MEC Revived. Designer ETN Drav in Number CE1.8 B Drawing Fe Nerve: 33130-0E-ECP-GET-DU.DWG 9 01/272021 ISSUE FOR 100% REVIEW MEC Detaller MEC Void: Sheet Number 25 of 80 AubCAD Version: 2020 S®le: AS NOTED Unit: English - Sheet Subset Sheet Subset vx—sa—fcu ! SCL/ 6 8' (MIN) WOODEN STAkE _ 9" DIAMETER (MIN) `� SEDIMENT CONTROL LOG 3• a' MA1T - CENIER T, FLOW --- pF SCL \��] DIAM �; ,r,,1�r ,. 'LARGER Ol4METER T" a SEDMENT CONTROL t, >. LOGS MAY NEED Ti RE EMBEDDED DEEPER 2 PUCE LOG ACMNST SIDEWALK OR BACk OF CURB WHEN ADJACENT T] THESE FEATURES TRENCHED SEDIMENT CONTROL LOG I-E".TEI :TAKE IN CONTROL LOG •TE E,,:AvATEC _. S- _ 9" DIAMETER (MIN) T-E\.H SOIL _---- SEDIMENT CONTROL LOG FL ia1 — .- )S DIAM. sCL (TYP.) 6- MEC I Last Modified Date: 12/172020 Initials', MEC File Name: SECTION TRENCHED SEDIMENT CONTROL LOG `A _..r ,E' (MIL) J._ L L_: r. Units. English OVERLA•' , ,1j.. . WOODEN LOG JOINTS TRENCHED SEDIMENT CONTROL LOG Date: Comment 09/182020 ISSUE FOR 60% REVIEW 111062020 ISSUE FOR 95% REVIEW Inieds MEC MEC )IMENT CONTROL LOG INSTALLATION NOIrS SEE PLAN VIEW FOR LOCATION AND LENGTH OF SEDIMENT CONTROL LOGS 2. SEDIMENT CONTROL LOGS THAT ACT AS A PERIMETER CONTROL SHALL BE INSTALLED PRIOR TO ANY UPGRADIENT LAND -DISTURBING ACTIVITIES. 3. SEDIMENT CONTROL LOGS SHALL CONSIST OF STRAW, COMPOST, EXCELSIOR OR COCONUT FIBER, AND SHALL BE FREE OF ANY NOXIOUS WEED SEEDS OR DEFECTS INCLUDING RIPS. HOLES AND OBVIOUS WEAR. 4. SEDIMENT CONTROL LOGS MAY BE USED AS SMALL CHECK DAMS IN DITCHES AND SWALES. HOWEVER, THEY SHOULD NOT BE USED IN PERENNIAL STREAMS. 5. IT IS RECOMMENDED THAT SEDIMENT CONTROL LOGS BE TRENCHED INTO THE GROUND TO A DEPTH OF APPROXIMATELY )S OF THE DIAMETER OF THE LOC. IF TRENCHING TO THIS DEPTH IS NOT FEASIBLE AND/OR DESIRABLE (SHORT TERM INSTALLATION WITH DESIRE NOT TO DAMAGE LANDSCAPE) A LESSER TRENCHING DEPTH MAY BE ACCEPTABLE WITH MORE ROBUST STAKING. COMPOST LOGS THAT ARE 8 LB/FT DO NOT NEED TO BE TRENCHED. 6. THE UPHILL SIDE OF THE SEDIMENT CONTROL LOC SHALL BE BACKFILIFD WITH SOIL OR FILTER MATERIAL THAT IS FREE OF ROCKS AND DEBRIS. THE SOIL SHALL BE TIGHTLY COMPACTED INTO THE SHAPE OF A RIGHT TRIANGLE USING A SHOVEL OR WEIGHTED LAWN ROLLER OR BLOWN IN PLACE. 7, FOLLOW MANUFACTURERSGUIDANCE FOR STAKING. IF MANUFACTURERS' INSTRUCTIONS DO NOT SPECIFY SPACING, STAKES SHALL BE PLACED ON 4' CENTERS AND EMBEDDED A MINIMUM OF 6" INTO THE GROUND. 3" OF THE STAKE SHALL PROTRUDE FROM THE TOP OF THE LOG. STAKES THAT ARE BROKEN PRIOR TO INSTALLATION SHALL BE REPLACED. COMPOST LOGS SHOULD BE STAKED 10' ON CENTER. SEDIMENT CONTROL LOG MAINTENANCE NOTES 1. INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION. MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION. AND PERFORM NECESSARY MAINTENANCE 2. FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION, INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY. 3. WHERE BMPg HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE. 4. SEDIMENT ACCUMULATED UPSTREAM OF SEDIMENT CONTROL LOG SHALL BE REMOVED AS NEEDED TO MAINTAIN FUNCTIONALITY OF THE BMP, TYPICALLY WHEN DEPTH OF ACCUMULATED SEDIMENTS IS APPROXIMATELY $ OF THE HEIGHT OF THE SEDIMENT CONTROL LOG. 5. SEDIMENT CONTROL LOG SHALL BE REMOVED AT THE ENO OF CONSTRUCTION.COMPOST FROM COMPOST LOGS MAY BE LEFT IN PLACE AS LONG AS BAGS ARE REMOVED AND THE AREA SEEDED. IF DISTURBED AREAS EXIST AFTER REMOVAL, THEY SHALL BE COVERED WITH TOP SOIL. SEEDED AND MULCHED OR OTHERWISE STABIUZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION. (OETAL9 ADAPTW FAOU TOWN OF PARKER, COLORADO. JVnMSoN CWNTY. COLORADO, OOUCAA4 COOMV, COLORADO. fl.D CITY OF ALNORA COLORADO, NOT AIMI ABLE IN AUiOCAD) NOTE: MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS. CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED. WELD COU PUBLIC WORKS DEPARTMENT 1111 H. STREET P.O. BOX 758 GREELEY. CO. 80632-0758 PHONE: (870) 3561000 FAX (970) 300-0497 WELD COUNTY PUBLIC WORKS MASTER DRAINAGE PLAN No Revisions EROSION CONTROL DETAILS Revised Designer: ETN Detailer. MEC Void Sheet Subset: Sheet Subset Project No./Code 33130 Drawing Number CE7.10 Sheet Number 26 of 80 ��Zs •* Ct�� 1, 7 ,N 'k j F•R ' f'� j 5.. ',y•+� M }S• �'•tt;�j ,. . F,. ... �. ' � I sdi a nY I y 'may` I � H _ r Areas of dsturOance,L Vicinity Map NTS Fist W9 �ilap l Soil Map —Weld County, Colorado, Southern Part MAP LEGEND MAP INFORMATION Area of Interest (AOI) Ig Spoil Area The soil surveys that comprise your AOI were mapped at Area of Interest (AOI) Q 1:24,000. Stony Spot Soils Very Stony Spot I Warning: Soil Map may not be valid at this scale. Soil Map Unit Polygons Wet Spot Enlargement of maps beyond the scale of mapping can cause ,.,. Soil Map Unit Lines misunderstanding of the detail of mapping and accuracy of soil Other line placement. The maps do not show the small areas of ® Sail Map Unit Points contrasting soils that could have been shown at a more detailed Special Line Features Special Point Features •' scale. V Blowout Water Features Streams and Canals Please rely on the bar scale on each map sheet for map Borrow Pit measurements. Transportation Clay Spot i r ► Rails Source of Map: Natural Resources Conservation Service Closed Depression Web Soil Survey URL: Interstate Highways Coordinate System: Web Mercator (EPSG:3857) X Gravel Pit US Routes Maps from the Web Soil Survey are based on the Web Mercator Gravelly Spot Major Roads projection, which preserves direction and shape but distorts distance and area. A projection that preserves area, such as the Landfill Local Roads Albers equal-area conic projection, should be used if more A. Lava Flow Background accurate calculations of distance or area are required. Marsh or swamp . Aerial Photography This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Mine or Quarry Soil Survey Area: Weld County, Colorado, Southern Part Op Miscellaneous Water Survey Area Data: Version 19, Jun 5, 2020 Perennial Water Soil map units are labeled (as space allows) for map scales Rock Outcrop 1:50,000 or larger. __} Saline Spot Date(s) aerial images were photographed: Jul 19, 2018 —Aug 10, 2018 Sandy Spot The orthophoto or other base map on which the soil lines were Severely Eroded Spot compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor Sinkhole shifting of map unit boundaries may be evident. Slide or Slip oa Sodic Spot USDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 2 of 3 Soil Map —Weld County, Colorado, Southern Part Map Unit Legend Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI 3 Aquolls and Aquents, gravelly substratum 28.9 69.4% 10 Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded 4.2 10.2% 34 Kim loam, 5 to 9 percent slopes 1.0 2.4% 85 Water 2.7 6.4% 86 Borrow Pits 4.8 11.5% Totals for Area of Interest 41.6 100.0% USDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 3 of 3 Map Unit Description: Kim loam, 5 to 9 percent slopes --Weld County, Colorado, Southern Part Weld County, Colorado, Southern Part 34 —Kim loam, 5 to 9 percent slopes Map Unit Setting National map unit symbol: 362d Elevation: 4,900 to 5,250 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 46 to 52 degrees F Frost -free period: 125 to 150 days Farmland classification: Farmland of local importance Map Unit Composition Kim and similar soils: 90 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Kim Setting Landform: Alluvial fans, plains Down -slope shape: Linear Across -slope shape: Linear Parent material: Mixed eolian deposits derived from sedimentary rock Typical profile H1 - 0 to 10 inches: loam H2 - 10 to 35 inches: loam H3 - 35 to 60 inches: fine sandy loam Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 5.95 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 15 percent Available water capacity: Moderate (about 8.8 inches) Interpretive groups Land capability classification (irrigated): 4e Land capability classification (nonirrigated): 6e Hydrologic Soil Group: A Ecological site: R067BY008CO - Loamy Slopes Hydric soil rating: No USDA Natural Resources Web Soil Survey 8/14/2020 i Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Kim loam, 5 to 9 percent slopes --Weld County, Colorado, Southern Part Minor Components Otero Percent of map unit: 6 percent Hydric soil rating: No Valent Percent of map unit: 4 percent Hydric soil rating: No Data Source Information Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 LSDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 2 of 2 Map Unit Description: Aquolls and Aquents, gravelly substratum ---Weld County, Colorado, Southern Part Weld County, Colorado, Southern Part 3—Aquolls and Aquents, gravelly substratum Map Unit Setting National map unit symbol: 3627 Elevation: 4,000 to 7,200 feet Mean annual precipitation: 12 to 18 inches Mean annual air temperature: 45 to 55 degrees F Frost -free period: 80 to 155 days Farmland classification: Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Map Unit Composition Aquolls and similar soils: 55 percent Aquents, gravelly substratum, and similar soils: 30 percent Minor components: 15 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Aquolls Setting Landform: Streams, flood plains, swales Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 48 inches: loam H2 - 48 to 60 inches: gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Low Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.20 to 2.00 in/hr) Depth to water table: About 6 to 48 inches Frequency of flooding: FrequentNone Frequency of ponding: None Maximum salinity: Nonsaline to slightly saline (0.0 to 4.0 mmhos/cm) Available water capacity: Moderate (about 8.0 inches) Interpretive groups Land capability classification (irrigated): None specified Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow QSDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 1 of 2 Map Unit Description: Aquolls and Aquents, gravelly substratum --Weld County, Colorado, Southern Part Hydric soil rating: Yes Description of Aquents, Gravelly Substratum Setting Landform: Stream terraces Down -slope shape: Linear Across -slope shape: Linear Parent material: Recent alluvium Typical profile HI - 0 to 48 inches: variable H2 - 48 to 60 inches: very gravelly sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Runoff class: Very high Capacity of the most limiting layer to transmit water (Ksat): Moderately high to very high (0.57 to 19.98 in/hr) Depth to water table: About 6 to 24 inches Frequency of flooding: FrequentNone Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Maximum salinity: Nonsaline to moderately saline (0.0 to 8.0 mmhos/cm) Available water capacity: Moderate (about 6.6 inches) Interpretive groups Land capability classification (irrigated): 6w Land capability classification (nonirrigated): 6w Hydrologic Soil Group: D Ecological site: R067BY035CO - Salt Meadow Hydric soil rating: Yes Minor Components Bankard Percent of map unit: 10 percent Hydric soil rating: No Ustic torrifluvents Percent of map unit: 5 percent Hydric soil rating: No Data Source Information Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 USDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 2 of 2 Map Unit Description: Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded ---Weld County, Colorado, Southern Part Weld County, Colorado, Southern Part 10 —Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded Map Unit Setting National map unit symbol: 2xsth Elevation: 3,950 to 5,960 feet Mean annual precipitation: 13 to 17 inches Mean annual air temperature: 50 to 54 degrees F Frost -free period: 135 to 165 days Farmland classification: Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60 Map Unit Composition Ellicott, rarely flooded, and similar soils: 65 percent Ellicott sandy -skeletal, rarely flooded, and similar soils: 25 percent Minor components: 10 percent Estimates are based on observations, descriptions, and transects of the mapunit. Description of Ellicott, Rarely Flooded Setting Landform: Flood plains on intermittent streams, drainageways Down -slope shape: Linear Across -slope shape: Concave Parent material: Noncalcareous, stratified sandy alluvium Typical profile A - 0 to 4 inches: sand AC - 4 to 13 inches: sand C1 - 13 to 30 inches: sand C2 - 30 to 44 inches: sand C3 - 44 to 80 inches: coarse sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water capacity: Very low (about 2.1 inches) Interpretive groups Land capability classification (irrigated): 4e USDA Natural Resources Web Soil Survey 8/14/2020 a" Conservation Service National Cooperative Soil Survey Page 1 of 3 Map Unit Description: Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded —Weld County, Colorado, Southern Part Land capability classification (nonirrigated): 7s Hydrologic Soil Group: A Ecological site: R067BY031 CO - Sandy Bottomland Hydric soil rating: No Description of Ellicott Sandy -skeletal, Rarely Flooded Setting Landform: Channels on intermittent streams, channels on drainageways Down -slope shape: Linear Across -slope shape: Concave, linear Parent material: Noncalcareous, stratified sandy alluvium Typical profile A - 0 to 4 inches: very gravelly coarse sand AC - 4 to 13 inches: very gravelly sand Cl - 13 to 30 inches: very gravelly sand C2 - 30 to 44 inches: very gravelly sand C3 - 44 to 80 inches: very gravelly coarse sand Properties and qualities Slope: 0 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Excessively drained Runoff class: Negligible Capacity of the most limiting layer to transmit water (Ksat): High to very high (13.00 to 39.96 in/hr) Depth to water table: More than 80 inches Frequency of flooding: Rare Frequency of ponding: None Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm) Available water capacity: Very low (about 1.2 inches) Interpretive groups Land capability classification (irrigated): 4s Land capability classification (nonirrigated): 8s Hydrologic Soil Group: A Ecological site: R067BY031 CO - Sandy Bottomland Hydric soil rating: No Minor Components Haverson Percent of map unit: 10 percent Landform: Terraces Landform position (three-dimensional): Tread Down -slope shape: Linear Across -slope shape: Linear Ecological site: R067BY036CO - Overflow USDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 2 of 3 Map Unit Description: Ellicott -Ellicott sandy -skeletal complex, 0 to 3 percent slopes, rarely flooded --Weld County, Colorado, Southern Part Hydric soil rating: No Data Source Information Soil Survey Area: Weld County, Colorado, Southern Part Survey Area Data: Version 19, Jun 5, 2020 USDA Natural Resources Web Soil Survey 8/14/2020 Conservation Service National Cooperative Soil Survey Page 3 of 3 GEOTECHNICAL ENGINEERING REPORT FUEL ISLAND PAVEMENT DESIGN 1113 "H" STREET GREELEY, COLORADO NORTHERN COLORADO GEOTECH PROJECT NO. 111-20 AUGUST 18, 2020 Prepared for: Weld County Buildings and Grounds 1105 "H" Street Greeley, Colorado 80631 Attn: Curtis Naibauer Northern Colorado Geotech 2956 29th Street, Unit 21 Greeley, Colorado 80631 Phone: (970) 506-9244 Fax: (970) 506-9242 Northern Colorado Geotech August 18, 2020 Weld County Buildings and Grounds 1105 "H" Street Greeley, Colorado 80631 Attn: Curtis Naibauer Re: Geotechnical Engineering Report Fuel Island Pavement Design Northern Colorado Geotech Project No. 111-20 2956 29th Street, Unit 21 Greeley, Colorado 80631 Phone: (970) 506-9244 Fax: (970) 506-9242 Northern Colorado Geotech has completed a geotechnical engineering exploration for the pavement improvements to the fuel island located at 1113 "H" Street in Greeley, Colorado. The subsurface soils at the site consisted of varying layers of silty sand with gravel, silty clayey sand and well graded sand with silt and gravel to a depth of 10 feet. Groundwater was encountered at an approximate depth of 7 feet below existing site grade. The results of our field exploration and laboratory testing indicate that the soils are non -expansive and will provide fair subgrade support for the proposed pavements. If you have any questions concerning this report or any of our consulting services, please do not hesitate to contact us. Sincerely, NORTHERN COLORADO GEOTECH Prepared by: Doug Leafgren, P.G. President Reviewed by: Gary G. Weeks, P.E. Vice President Copies to: Addressee (3) TABLE OF CONTENTS Page No. Letterof Transmittal.............................................................................................................. ii SCOPE.................................................................................................................................1 SITECONDITIONS...............................................................................................................1 PROPOSED CONSTRUCTION............................................................................................1 SITEEXPLORATION............................................................................................................1 LaboratoryTesting.......................................................................................................2 SUBSURFACE CONDITIONS..............................................................................................2 SoilConditions.............................................................................................................2 GroundwaterConditions..............................................................................................2 Field and Laboratory Test Results...............................................................................3 DESIGNRECOMMENDATIONS..........................................................................................3 Pavement Design and Construction.............................................................................3 GeneralEarthwork.......................................................................................................5 SitePreparation..................................................................................................5 Fill Materials and Placement...............................................................................5 GENERALCOMMENTS.......................................................................................................7 ATTACHMENTS Boring Location Plan Logs of Borings Laboratory Test Results GEOTECHNICAL ENGINEERING REPORT FUEL ISLAND PAVEMENT DESIGN 1113 "H" STREET GREELEY, COLORADO NORTHERN COLORADO GEOTECH PROJECT NO. 111-20 AUGUST 18, 2020 SCOPE This report contains the results of our geotechnical engineering exploration for the proposed paving project at the Weld County Fuel Island located at 1113 "H" Street in Greeley, Colorado. This report includes descriptions of, and geotechnical engineering recommendations relative to: • subsurface soil conditions • groundwater conditions • pavement design and construction • earthwork The recommendations contained in this report are based upon the results of field and laboratory testing, engineering analyses, and experience with similar soil conditions, structures and our understanding of the proposed project. SITE CONDITIONS The site is a paved lot with multiple fuel pumps and containment areas for liquids that are used by the Weld County road maintenance crews. Overall surface drainage is poor to the south. The site is bordered to the east by "H" Street. Existing Weld County warehouse/office structure are located to the south and west. A vacant parcel is located to the north. PROPOSED CONSTRUCTION As we understand it, the project will consist of re -paving the parcel around the fuel island for a large quantity of truck traffic. SITE EXPLORATION A total of three test borings were drilled on July 2, 2020. The borings were drilled to approximate depths of 10 feet at the locations shown on the Site Plan, Figure 1. All borings were advanced with a truck -mounted drilling rig, utilizing 4 -inch diameter solid stem augers. Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No. 111-20 The borings were located in the field by pacing from property lines and/or existing site features. The accuracy of boring locations should only be assumed to the level implied by the methods used. Lithologic logs of each boring were recorded by a representative of Northern Colorado Geotech during the drilling operations. At selected intervals, samples of the subsurface materials were taken by driving split -spoon samplers. Standard penetration measurements were recorded while driving a split - spoon sampler into the subsurface materials. The standard penetration test is a useful index in estimating the density of the materials encountered. Groundwater conditions were evaluated in each boring at the time of subsurface exploration. Laboratory Testing The samples retrieved during the subsurface exploration were returned to our laboratory for observation by the project manager. The soils were classified in general accordance with the Unified Soil Classification System. At that time, the field descriptions were confirmed or modified and an applicable laboratory testing program was formulated. Boring logs were prepared and are attached with this report. Laboratory tests were conducted on selected samples and are presented on the boring logs and attached laboratory test sheets. The test results were used for the geotechnical engineering analyses, and the development of foundation and earthwork recommendations. Selected samples were tested for the following engineering properties: • Water Content • Atterberg Limits • Percent Fines SUBSURFACE CONDITIONS Soil Conditions Soils at the site generally consisted of varying layers of silty sand with gravel, silty clayey sand and well graded sand with silt and gravel to a depth of 10 feet. Summary boring logs are attached with this report. Groundwater Conditions Groundwater was encountered at approximate depth of 7 feet in the test borings at the time of field exploration. These observations represent groundwater conditions at the time of the field exploration, 2 Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No. 111-20 and may not be indicative of other times, or at other locations. Groundwater levels can be expected to fluctuate with varying seasonal and weather conditions. Field and Laboratory Test Results Field test results indicate that the sand soils vary from loose to medium dense in relative density. Laboratory test results indicate that the soils are non -expansive and should provide fair subgrade support for the proposed pavements. DESIGN RECOMMENDATIONS Pavement Design and Construction The design of pavements for the project has been based on the procedures outlined in the 1993 Guideline for Design of Pavement Structures by the American Association of State Highway and Transportation Officials (AASHTO). The required total thickness for the pavement structure is dependent primarily upon the foundation soil or subgrade and upon traffic conditions. It is our understanding that a high percentage of the vehicles using the fuel islands will be County trucks. Based on the soil conditions encountered at the site, the anticipated type and volume of traffic and using a group index of 2 as the criterion for pavement design, the following minimum pavement thicknesses are recommended: Traffic Area Alternative Recommended Pavement Thicknesses (Inches) Asphalt Aggregate Plant -Mixed Portland Concrete ' Base Course Bituminous Cement Surface Base Concrete Total Fuel Island Re -Paving A 5 6 11 B 7 7 Each alternative should be investigated with respect to current material availability and economic conditions. Aggregate base course (if used on the site) should consist of a blend of sand and gravel which meets strict specifications for quality and gradation. Use of materials meeting Colorado Department of Transportation (CDOT) Class 5 or 6 specifications is recommended for base course. Aggregate base course should be placed in lifts not exceeding six inches and should be compacted to a minimum of 95% Standard Proctor Density (ASTM D698). 3 Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No. 111-20 Asphalt concrete and/or plant -mixed bituminous base course should be composed of a mixture of aggregate, filler and additives, if required, and approved bituminous material. The bituminous base and/or asphalt concrete should conform to approved mix designs stating the Superpave properties, optimum asphalt content, job mix formula and recommended mixing and placing temperatures. Aggregate used in plant -mixed bituminous base course and/or asphalt concrete should meet particular gradations. Material meeting Colorado Department of Transportation Grading S or SX specification is recommended for asphalt concrete. Aggregate meeting Colorado Department of Transportation Grading G specifications is recommended for plant -mixed bituminous base course. Mix designs should be submitted prior to construction to verify their adequacy. Asphalt material should be placed in maximum 3 -inch lifts and should be compacted to a minimum of 92% maximum theoretical specific gravity. Where rigid pavements are used, the concrete should be obtained from an approved mix design with the following minimum properties: • Modulus of Rupture @ 28 days • Strength Requirements ............ • Cement Type ........................... • Concrete Aggregate ................. .............................................. 600 psi minimum ........................................................ASTM C94 ..............................................Type I -II Portland ................. ASTM C33 and CDOT Section 703 Concrete should be deposited by truck mixers or agitators and placed a maximum of 90 minutes from the time the water is added to the mix. Other specifications outlined by the Colorado Department of Transportation should be followed. Longitudinal and transverse joints should be provided as needed in concrete pavements for expansion/contraction and isolation. The location and extent of joints should be based upon the final pavement geometry. Sawed joints should be cut within 24 -hours of concrete placement, and should be a minimum of 25% of slab thickness plus 1/4 inch. All joints should be sealed to prevent entry of foreign material and dowelled where necessary for load transfer. Based upon the subsurface conditions determined from the geotechnical exploration, subgrade soils exposed during construction are anticipated to be relatively stable. However, the stability of the subgrade may be affected by precipitation, repetitive construction traffic or other factors. When unstable conditions develop, workability may be improved by scarifying and drying. Overexcavation of wet zones and replacement with granular materials may be necessary. Use of lime, fly ash, kiln dust, cement or geotextiles could also be considered as a stabilization technique. Laboratory evaluation is 4 Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No. 111-20 recommended to determine the effect of chemical stabilization on subgrade soils prior to construction. Lightweight excavation equipment may be required to reduce subgrade pumping. General Earthwork All earthwork on the project should be observed and evaluated by Northern Colorado Geotech. The evaluation of earthwork should include observation and testing of engineered fill, subgrade preparation, foundation bearing soils, and other geotechnical conditions exposed during the construction of the project. Site Preparation Strip and remove existing vegetation, debris, and other deleterious materials from proposed building and pavement areas. All exposed surfaces should be free of mounds and depressions which could prevent uniform compaction. Demolition of the existing pavement and improvements should include complete removal of all foundation systems within the proposed construction area. This should include removal of any loose backfill found adjacent to existing foundations. All materials derived from the demolition of existing structures and pavements should be removed from the site, and not be allowed for use in any on -site fills. If unexpected fills or underground facilities are encountered, such features should be removed and the excavation thoroughly cleaned prior to backfill placement and/or construction. It is anticipated that excavations for the proposed construction can be accomplished with conventional earthmoving equipment. The individual contractor(s) is responsible for designing and constructing stable, temporary excavations as required to maintain stability of both the excavation sides and bottom. All excavations should be sloped or shored in the interest of safety following local, and federal regulations, including current OSHA excavation and trench safety standards. Fill Materials and Placement The site should be graded to create a relatively level surface to receive fill, and to provide for a relatively uniform thickness of fill beneath proposed building structures. All exposed areas which will receive fill should be scarified to a minimum depth of eight inches, conditioned to near optimum moisture content, and compacted. 5 Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No. 111-20 The placement of soils on the site should be observed by Northern Colorado Geotech. The fill should be assessed for suitability of use in the proposed fill and tested for placement including compaction percentage and moisture content. Engineered fill should be placed and compacted in horizontal lifts, using equipment and procedures that will produce recommended moisture contents and densities throughout the lift. Recommended compaction criteria for engineered fill materials are as follows: Clean on -site soils or approved imported materials may be used as fill material. Imported soils (if required) should conform to the following: Gradation 6"............................................. 3"............................................. No. 4 Sieve .............................. No. 200 Sieve.......................... • Liquid Limit ........ • Plasticity Index... Material Scarified subgrade soils ... Percent fines by weight (ASTM C136) ...............100 ..........70-100 ..........50-100 .......50 (max) ..30 (max) 5 (max) Minimum Percent (ASTM D698) ............95 On -site and imported fill soils: Beneath pavements.................................................................... 95 Aggregate base (beneath slabs)............................................................95 On -site or imported granular soils should be compacted within a moisture range of 3 percent below to 3 percent above optimum unless modified by the project geotechnical engineer. Weld County Buildings and Grounds Proposed Pavement Design at 1113 "H" Street Northern Colorado Geotech Project No 111-20 GENERAL COMMENTS The analysis and recommendations presented in this report are based upon data obtained from borings performed to obtain representative subsurface conditions at the site Variations in the soil between borings will occur Northern Colorado Geotech should be present during construction to observe the excavation and construction procedures and confirm or modify our recommendations The scope of services for this project does not include either specifically or by implication any environmental assessment of the site This report is intended exclusively for the use by the client Any use or reuse of the findings and/or recommendations of this report by parties other than the client without the written consent of Northern Colorado Geotech is undertaken at said parties' sole risk This report has been prepared in accordance with generally accepted geotechnical engineering practices in this area at this time No warranties, either express or implied, are intended or made 7 No.1 25' 0 25' 5C' DIAGRAM IS FOR GENERAL LOCATION ONLY, AND IS NOT INTENDED FOR CONSTRUCTION PURPOSES N 4 No.2S S No.3S S LIQUID CONTAINMENT BORING LOCATION PLAN PROPOSED PAVEMENT DESIGN WELD COUNTY FUEL ISLAND - 1113 "H" STREET GREELEY, COLORADO FOR WELD COUNTY BUILDINGS AND GROUNDS Northern olorado Geotech 2956 29th Street, Unit 21 Greeley, Colorado 80631 Phone: (970)506-9244 Fax: (970) 506-9242 Project No. Scale: Date: Project Mgr Figure No. 111-20 1"=50' 8-17-20 DML 1 LOG OF BORING No. I Sheet I of I CLIENT ARCHITECT/ENGINEER Weld County Buildings and Grounds SITE 1113 H Street PROJECT Greeley, Colorado Fuel Island Pavement Design SAMPLES TESTS o W w o n w OO V I✓ �W X WO Z WW di- �J m W ELU ❑� < O¢ mZ z Otr ZZ 2 oo o0 2i 3"ASPHALT 05 24 1 SS 12 2 SILTY SAND WITH GRAVEL Tan, moist, medium dense ° b` b 6' o- pa 4 0 a 0' 10 2 SS 12 25 SILTY CLAYEY SAND Black, moist, loose 5 Tan, moist to wet, medium dense Q . d.• c•Q 13 13 I SS I 12 I 10 10 WATER LEVEL OBSERVA11ONS 1VVI LIIII I STARTED 7/2/20 FINISHED 7/2/20 WL a 70 WD Colorado Geotech DRILL CO Drilling Eng DRILL RIG CME-55 2956 29th Street, Unit 21 LOGGED BY TK APPROVED DML Greeley, Colorado 80631 Hole Filled in After Boring Phone 970-506-9244 Fax 970-506-9242 NCG PROJECT NO 111-20 LOG OF BORING No. 2 Sheet 1 of 1 CLIENT ARCHITECT/ENGINEER Weld County Buildings and Grounds SITE 1113 H Street PROJECT Greeley, Colorado Fuel Island Pavement Design SAMPLES TESTS 0 o n XX W W O -J cU L . r -W !Y WO Z WH ?F- Q I- ?�¢ m W ≥ oW 7 1- W O o- � 5 J OZ ohl cAU mz z zz >L1 o0 ZO _F- 3 C=W O oW 0ao 3" ASPHALT 05 24 1 SS 12 5 NV/NP/22 SILTY SAND WITH GRAVEL o Tan, moist, medium dense d b 11 V 40 0 11 2 SS 12 18 SILTY CLAYEY SAND Black, moist, medium dense 5_I 60 ° WELL GRADED SAND WITH SILT AND `a:•: GRAVEL Tan, moist to wet, loose .d.. •.��'� 5 3 SS 12 14 •°••J'S 100 10 BOTTOM OF BORING WATER LEVEL OBSERVATIONS Northern Colorado STARTED 7/2/20 FINISHED 7/2/20 WL Sz 72 WD Geotech DRILL CO Drilling Eng DRILL RIG CME-55 2956 29th Street, Unit 21 LOGGED BY TK APPROVED DML Greeley, Colorado 80631 Phone 970-506-9244 Fax 970-506-9242 Hole Filled in After Boring NCG PROJECT NO 111-20 LOG OF BORING No. 3 Sheet 1 of I CLIENT ARCHITECT/ENGINEER Weld County Buildings and Grounds SITE 1113 H Street PROJECT Greeley, Colorado Fuel Island Pavement Design SAMPLES TESTS 0 o a w O U w w w p of Z W W Q F-¢2 Q m ≥ ❑ w u O mZ SO C7 ❑ Z I- ?Z ❑d Y ASPHALT 05 a 26 1 SS 12 4 SILTY SAND WITH GRAVEL Tan, moist, medium dense b° i3° e p° 40 10 2 SS 12 18 SILTY CLAYEY SAND Black, moist, loose 5 60 a.•. WELL GRADED SAND WITH SILT AND GRAVEL Tan, moist to wet, medium dense Q ©: • ct ': 26 3 SS 12 6 •-'�� 100 10 BOTTOM OF BORING WATER LEVEL OBSERVATIONS Northern Colorado STARTED 7/2/20 FINISHED 7/2/20 WL 71 WD Geotech DRILL CO Drilling Eng DRILL RIG CME-55 2956 29th Street, Unit 21 Greeley, Colorado 80631 Phone 970-506-9244 Fax 970-506-9242 LOGGED BY TK APPROVED DML Hole Filled in After Boring NCG PROJECT NO 111-20 Sediment Control Log (SCL) SC -2 Description A sediment control log is a linear roll made of natural materials such as straw, coconut fiber, or compost. The most common type of sediment control log has straw filling and is often referred to as a "straw wattle." All sediment control logs are used as a sediment barrier to intercept sheet flow runoff from disturbed areas. Appropriate Uses Sediment control logs can be used in the following applications to trap sediment: ■ As perimeter control for stockpiles and the site. ■ As part of inlet protection designs. ■ As check dams in small drainage ditches. (Sediment control logs are not intended for use in channels with high flow velocities.) ■ On disturbed slopes to shorten flow lengths (as an erosion control). Photographs SCL-1 and SCL-2. Sediment control logs used as 1) a perimeter control around a soil stockpile; and, 2) as a "J -hook" perimeter control at the comer of a construction site. ■ As part of multi -layered perimeter control along a receiving water such as a stream, pond or wetland. Sediment control logs work well in combination with other layers of erosion and sediment controls. Design and Installation Sediment control logs should be installed along the contour to avoid concentrating flows. The maximum allowable tributary drainage area per 100 lineal feet of sediment control log, installed along the contour, is approximately 0.25 acres with a disturbed slope length of up to 150 feet and a tributary slope gradient no steeper than 3:1. Longer and steeper slopes require additional measures. This recommendation only applies to sediment control logs installed along the contour. When installed for other uses, such as perimeter control, it should be installed in a way that will not produce concentrated flows. For example, a "J -hook" installation may be appropriate to force runoff to pond and evaporate or infiltrate in multiple areas rather than concentrate and cause erosive conditions parallel to the BMP. Sediment Control Log Functions Erosion Control Moderate Sediment Control Yes Site/Material Management No November 2015 Urban Drainage and Flood Control District SCL-1 Urban Storm Drainage Criteria Manual Volume 3 SC -2 Sediment Control Log (SCI ) Although sediment control logs initially allow runoff to flow through the BMP, they can quickly become a barrier and should be installed as if they are impermeable Design details and notes for sediment control logs are provided in the following details Sediment logs must be properly installed per the detail to prevent undercutting, bypassing and displacement When installed on slopes, sediment control logs should be installed along the contours (i e, perpendicular to flow) Improper installation can lead to poor performance Be sure that sediment control logs are properly trenched (if lighter than 8 lb/foot), anchored and tightly jointed Maintenance and Removal Be aware that sediment control logs will eventually degrade Remove accumulated sediment before the depth is one-half the height of the sediment log and repair damage to the sediment log, typically by replacing the damaged section Once the upstream area is stabilized, remove and properly dispose of the logs Areas disturbed beneath the logs may need to be seeded and mulched Sediment control logs that are biodegradable may occasionally be left m place (e g, when logs are used in conjunction with erosion control blankets as permanent slope breaks) However, removal of sediment control logs after final stabilization is typically appropriate when used in perimeter control, inlet protection and check dam applications Compost from compost sediment control logs may be spread over the area and seeded as long as this does not cover newly established vegetation SCL-2 Urban Drainage and Flood Control District November 2015 Urban Storm Drainage Criteria Manual Volume 3 Sediment Control Log (SCL) SC -2 - SCL-SCL - SCL- SCL x tYi" x }8" (MIN) WOODEN STAI<E 9' Dk?N1ETER (MIN) SEDIMENT CONTROL LOG 3" -' MA` -QN CENTER (Ti? L FLOW -rte OF SCL GIxM 1 LARGER DIAMETER SEDIMENT CONTROL P LOGS MAY NEED TO BE EMBEDDED DEEPER 2 PLACE LOG AGAINST /,�/✓jJ�/f� ��\\ill}/�f�(if✓tr�"� SIDEWALK OR PACK OF CURB WHEN ADJACENT TO THESE FEATURES TRENCHED SEDIMENT CONTROL LOG i CENTER STAKE IN CONTROL LOG COMPACTED EXCAVATED 3„ 9' DIAMETER (MIN) TRENCH SOIL SEDIMENT CONTROL LOG r Ys DIAM SCL (TYP ) FLOW — -- b' SECTION r� TRENCHED SEDIMENT CONTROL LOG 12" OVERLAP (MIN 7 1Y2" x t72" t 18' (MIN) WOODEN STAKE 9 ' DIAMETER (MIN) SEDIMENT CONTROL LOG LOG JOINTS SCL-1 TRENCHED SEDIMENT CONTROL LOG November 2015 Urban Drainage and Flood Control District SCL-3 Urban Storm Drainage Criteria Manual Volume 3 SC=2 Sediment Control Log (SCL) SCL' x 1)�" x 18" (MIN) WOODEN STAKE 8' DIAMETER (MIN) COMPOST SEDIMENT CONTROL LOG NOTES FLOW -r 1 THIS DETAIL IS FOR USE WITH SEDIMENT CONTROL LOGS THAT ARE A MINIMUM OF 8 LB/FT 2 PLACE LOG AGAINST SIDEWALK OR BACK OF CURB WHEN ADJACENT TO THESE FEATURES COMPOST SEDIMENT CONTROL LOG (WEIGHTED) BLOW MED1I CENTER STAKE IN CONTROL LOG ER (VIN) COMPOST CONTROL LOO SECTION A COMPOST SEDIMENT CONTROL LOG 9" DIAMETER (MIN) SEDIMENT CONTROL LOG 12 OVERLAP LOG JOINTS 1X2 x 1Y2' x 1B' (MIN) WOODEN STAKE SCL-2 COMPOST SEDIMENT CONTROL LOG (WEIGHTED) SCL-4 Urban Drainage and Flood Control District November 2015 Urban Storm Drainage Criteria Manual Volume 3 Sediment Control Log (SCL) SC -2 4 MAX FOR TRENCHED SCLs 10 MAX FOR COMPOST SCLs VERTICAL SPACING VARIES DEPENDING ON SLOPE r CONTINUOUS SCL AT PERIMETER OF CONSTRUCTION SITE SCL-3 SEDIMENT CONTROL LOGS TO CONTROL SLOPE LENGTH November 2015 Urban Drainage and Flood Control District SCL-5 Urban Storm Drainage Criteria Manual Volume 3 SC -2 Sediment Control Log (SCL) SEDIMENT CONTROL LOG INSTALLATION NOTES 1 SEE PLAN VIEW FOR LOCATION AND LENGTH OF SEDIMENT CONTROL LOGS 2 SEDIMENT CONTROL LOGS THAT ACT AS A PERIMETER CONTROL SHALL BE INSTALLED PRIOR TO ANY UPGRADIENT LAND -DISTURBING ACTIVITIES 3 SEDIMENT CONTROL LOGS SHALL CONSIST OF STRAW, COMPOST, EXCELSIOR OR COCONUT FIBER, AND SHALL BE FREE OF ANY NOXIOUS WEED SEEDS OR DEFECTS INCLUDING RIPS, HOLES AND OBVIOUS WEAR 4 SEDIMENT CONTROL LOGS MAY BE USED AS SMALL CHECK DAMS IN DITCHES AND SWALES HOWEVER, THEY SHOULD NOT BE USED IN PERENNIAL STREAMS 5 IT IS RECOMMENDED THAT SEDIMENT CONTROL LOGS BE TRENCHED INTO THE GROUND TO A DEPTH OF APPROXIMATELY 1`s OF THE DIAMETER OF THE LOG IF TRENCHING TO THIS DEPTH IS NOT FEASIBLE AND/OR DESIRABLE (SHORT TERM INSTALLATION WITH DESIRE NOT TO DAMAGE LANDSCAPE) A LESSER TRENCHING DEPTH MAY BE ACCEPTABLE WITH MORE ROBUST STAKING COMPOST LOGS THAT ARE 8 LB/FT DO NOT NEED TO BE TRENCHED 6 THE UPHILL SIDE OF THE SEDIMENT CONTROL LOG SHALL BE BACKFILLED WITH SOIL OR FILTER MATERIAL THAT IS FREE OF ROCKS AND DEBRIS THE SOIL SHALL BE TIGHTLY COMPACTED INTO THE SHAPE OF A RIGHT TRIANGLE USING A SHOVEL OR WEIGHTED LAWN ROLLER OR BLOWN IN PLACE 7 FOLLOW MANUFACTURERS' GUIDANCE FOR STAKING IF MANUFACTURERS' INSTRUCTIONS DO NOT SPECIFY SPACING, STAKES SHALL BE PLACED ON 4' CENTERS AND EMBEDDED A MINIMUM OF 6" INTO THE GROUND 3" OF THE STAKE SHALL PROTRUDE FROM THE TOP OF THE LOG STAKES THAT ARE BROKEN PRIOR TO INSTALLATION SHALL BE REPLACED COMPOST LOGS SHOULD BE STAKED 10' ON CENTER SEDIMENT CONTROL LOG MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN Bf4Ps IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 SEDIMENT ACCUMULATED UPSTREAM OF SEDIMENT CONTROL LOG SHALL BE REMOVED AS NEEDED TO MAINTAIN FUNCTIONALITY OF THE BMP, TYPICALLY WHEN DEPTH OF ACCUMULATED SEDIMENTS IS APPROXIMATELY if OF THE HEIGHT OF THE SEDIMENT CONTROL LOG 5 SEDIMENT CONTROL LOG SHALL BE REMOVED AT THE END OF CONSTRUCTION COMPOST FROM COMPOST LOGS MAY BE LEFT IN PLACE AS LONG AS BAGS ARE REMOVED AND THE AREA SEEDED IF DISTURBED AREAS EXIST AFTER REMOVAL, THEY SHALL BE COVERED WITH TOP SOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION (DETAILS ADAPTED FROM TOWN OF PARKER COLORADO, JEFFERSON COUNTY, COLORADO, DOUGLAS COUNTY, COLORADO AND CITY OF AURORA, COLORADO, NOT AVAILABLE IN AUTOCAD) NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED SCL-6 Urban Drainage and Flood Control District November 2015 Urban Storm Drainage Criteria Manual Volume 3 Inlet Protection (IP Description Inlet protection consists of permeable barriers installed around an inlet to filter runoff and remove sediment prior to entering a storm drain inlet. Inlet protection can be constructed from rock socks, sediment control logs, silt fence, block and rock socks, or other materials approved by the local jurisdiction. Area inlets can also be protected by over -excavating around the inlet to form a sediment trap. Appropriate Uses Install protection at storm sewer inlets that are operable during construction. Photograph IP-1. Inlet protection for a curb opening inlet. Consider the potential for tracked -out sediment or temporary stockpile areas to contribute sediment to inlets when determining which inlets must be protected. This may include inlets in the general proximity of the construction area, not limited to downgradient inlets. Inlet protection is not a stand-alone BMP and should be used in conjunction with other upgradient BMPs. SC -6 Design and Installation To function effectively, inlet protection measures must be installed to ensure that flows do not bypass the inlet protection and enter the storm drain without treatment. However, designs must also enable the inlet to function without completely blocking flows into the inlet in a manner that causes localized flooding. When selecting the type of inlet protection, consider factors such as type of inlet (e.g., curb or area, sump or on -grade conditions), traffic, anticipated flows, ability to secure the BMP properly, safety and other site -specific conditions. For example, block and rock socks will be better suited to a curb and gutter along a roadway, as opposed to silt fence or sediment control logs, which cannot be properly secured in a curb and gutter setting, but are effective area inlet protection measures. Several inlet protection designs are provided in the Design Details. Additionally, a variety of proprietary products are available for inlet protection that may be approved for use by local governments. If proprietary products are used, design details and installation procedures from the manufacturer must be followed. Regardless of the type of inlet protection selected, inlet protection is most effective when combined with other BMPs such as curb socks and check dams. Inlet protection is often the last barrier before runoff enters the storm sewer or receiving water. Design details with notes are provided for these forms of inlet protection: IP-1. Block and Rock Sock Inlet Protection for Sump or On -grade Inlets IP-2. Curb (Rock) Socks Upstream of Inlet Protection, On -grade Inlets Inlet Protection (various forms) Functions Erosion Control No Sediment Control Yes Site/Material Management No August 2013 Urban Drainage and Flood Control District IP-1 Urban Storm Drainage Criteria Manual Volume 3 SC -6 Inlet Protection (lI) IP-3 Rock Sock Inlet Protection for Sump/Area Inlet IP-4 Silt Fence Inlet Protection for Sump/Area Inlet IP-5 Over -excavation Inlet Protection IP-6 Straw Bale Inlet Protection for Sump/Area Inlet CIP-1 Culvert Inlet Protection Propriety inlet protection devices should be installed in accordance with manufacturer specifications More information is provided below on selecting inlet protection for sump and on -grade locations Inlets Located in a Sump When applying inlet protection in sump conditions, it is important that the inlet continue to function during larger runoff events For curb inlets, the maximum height of the protective barrier should be lower than the top of the curb opening to allow overflow into the inlet during larger storms without excessive localized flooding If the inlet protection height is greater than the curb elevation, particularly if the filter becomes clogged with sediment, runoff will not enter the inlet and may bypass it, possibly causing localized flooding, public safety issues, and downstream erosion and damage from bypassed flows Area inlets located in a sump setting can be protected through the use of silt fence, concrete block and rock socks (on paved surfaces), sediment control logs/straw wattles embedded in the adjacent soil and stacked around the area inlet (on pervious surfaces), over -excavation around the inlet, and proprietary products providing equivalent functions Inlets Located on a Slope For curb and gutter inlets on paved sloping streets, block and rock sock inlet protection is recommended in conjunction with curb socks in the gutter leading to the inlet For inlets located along unpaved roads, also see the Check Dam Fact Sheet Maintenance and Removal Inspect inlet protection frequently Inspection and maintenance guidance includes Inspect for tears that can result in sediment directly entering the inlet, as well as result in the contents of the BMP (e g, gravel) washing into the inlet Check for improper installation resulting in untreated flows bypassing the BMP and directly entering the inlet or bypassing to an unprotected downstream inlet For example, silt fence that has not been properly trenched around the inlet can result in flows under the silt fence and directly into the inlet Look for displaced BMPs that are no longer protecting the inlet Displacement may occur following larger storm events that wash away or reposition the inlet protection Traffic or equipment may also crush or displace the BMP Monitor sediment accumulation upgradient of the inlet protection IP-2 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Inlet Protection (IF) SC -6 ■ Remove sediment accumulation from the area upstream of the inlet protection, as needed to maintain BMP effectiveness, typically when it reaches no more than half the storage capacity of the inlet protection For silt fence, remove sediment when it accumulates to a depth of no more than 6 inches Remove sediment accumulation from the area upstream of the inlet protection as needed to maintain the functionality of the BMP ■ Propriety inlet protection devices should be inspected and maintained in accordance with manufacturer specifications If proprietary inlet insert devices are used, sediment should be removed in a timely manner to prevent devices from breaking and spilling sediment into the storm drain Inlet protection must be removed and properly disposed of when the drainage area for the inlet has reached final stabilization August 2013 Urban Drainage and Flood Control District IP-3 Urban Storm Drainage Criteria Manual Volume 3 CURB SOCK SC 6 Inlet Protection (IF) a .V�a��r�� C' tvil.y 'h>T�•S,. ri7�g�i/ -. INLET PROTECTION BLOCK AND CURB SOCK INLET PROTECTION INSTALLATION NOTES 1 SEE ROCK SOCK DESIGN DETAIL FOR INSTALLATION REQUIREMENTS 2 CONCRETE "CINDER" BLOCKS SHALL BE LAID ON THEIR SIDES AROUND THE INLET IN A SINGLE ROW, ABUTTING ONE ANOTHER WITH THE OPEN END FACING AWAY FROM THE CURB 3 GRAVEL BAGS SHALL BE PLACED AROUND CONCRETE BLOCKS, CLOSELY ABUTTING ONE ANOTHER AND JOINTED TOGETHER IN ACCORDANCE WITH ROCK SOCK DESIGN DETAIL MINIMUM OF TWO CURB SOCKS APPROX 30 DEC BLOCK AND ROCK SOCK INLET PROTECTION(SEE DETAIL IP-1) FLOW - IP-2 CURB ROCK SOCKS UPSTREAM OF INLET PROTECTION CURB ROCK SOCK INLET PROTECTION INSTALLATION NOTES 1 SEE ROCK SOCK DESIGN DETAIL INSTALLATION REQUIREMENTS 2 PLACEMENT OF THE SOCK SHALL BE APPROXIMATELY 30 DECREES FROM PERPENDICULAR IN THE OPPOSITE DIRECTION OF FLOW 3 SOCKS ARE TO BE FLUSH WITH THE CURB AND SPACED A MINIMUM OF 5 FEET APART 4 AT LEAST TWO CURB SOCKS IN SERIES ARE REQUIRED UPSTREAM OF ON -GRADE INLETS IP-4 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Inlet Protection (IP) I SC 6 Mi.- '401 ROCK SOCK =T GRATE I P SEE ROCK SOCK DETAIL FOR JOINTING IP-3 ROCK SOCK SUMP/AREA INLET PROTECTION ROCK SOCK SUMP/AREA INLET PROTECTION INSTALLATION NOTES 1 SEE ROCK SOCK DESIGN DETAIL FOR INSTALLATION REQUIREMENTS 2 STRAW WATTLES/SEDIMENT CONTROL LOGS MAY BE USED IN PLACE OF ROCK SOCKS FOR INLETS IN PERVIOUS AREAS INSTALL PER SEDIMENT CONTROL LOG DETAIL LSFJ .I UNAIt SILT FENCE (SEE SILT FENCE DESIGN DETAIL IP-4 SILT FENCE FOR SUMP INLET PROTECTION SILT FENCE INLET PROTECTION INSTALLATION NOTES 1 SEE SILT FENCE DESIGN DETAIL FOR INSTALLATION REQUIREMENTS 2 POSTS SHALL BE PLACED AT EACH CORNER OF THE INLET AND AROUND THE EDGES AT A MAXIMUM SPACING OF 3 FEET 3 STRAW WATTLES/SEDIMENT CONTROL LOGS MAY BE USED IN PLACE OF SILT FENCE FOR INLETS IN PERVIOUS AREAS INSTALL PER SEDIMENT CONTROL LOG DETAIL August 2013 Urban Drainage and Flood Control District IP-5 Urban Storm Drainage Criteria Manual Volume 3 SC -6 Inlet Protection (IF) SILT I P FENCE AREA INLET SHEET I SILT FLOW FENCE ECB 21 MAX AREA 2' MAX ECB INLET 4 ROCK FILTER L CONCENTRATED OR ROCK SOCK FLOW (USE IF FLOW IS CONCENTRATED) IP-5. OVEREXCAVATION INLET PROTECTION OVEREXCAVATION INLET PROTECTION INSTALLATION NOTES 1 THIS FORM OF INLET PROTECTION IS PRIMARILY APPLICABLE FOR SITES THAT HAVE NOT YET REACHED FINAL GRADE AND SHOULD BE USED ONLY FOR INLETS WITH A RELATIVELY SMALL CONTRIBUTING DRAINAGE AREA 2 WHEN USING FOR CONCENTRATED FLOWS, SHAPE BASIN IN 21 RATIO WITH LENGTH ORIENTED TOWARDS DIRECTION OF FLOW 3 SEDIMENT MUST BE PERIODICALLY REMOVED FROM THE OVEREXCAVATED AREA STRAW BALE (SEE STRAW BALE DESIGN DETAIL) III 1�1 --I - INLET GRATE IP-6 STRAW BALE FOR SUMP INLET PROTECTION STRAW BALE BARRIER INLET PROTECTION INSTALLATION NOTES I SEE STRAW BALE DESIGN DETAIL FOR INSTALLATION REQUIREMENTS 2 BALES SHALL BE PLACED IN A SINGLE ROW AROUND THE INLET WITH ENDS OF BALES TIGHTLY ABUTTING ONE ANOTHER IP-6 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Inlet Protection (IP) SC -6 P CIP ri -w L FLOW D (12" MIN) 1 'CND ULVERT SECTION BACKFILL UPSTREAM ROCK ROCK SOCK OF WATTLE SOCK CULVERT INLET PROTECTION SECTION A PLAN 10" MIN } KEY IN ROCK SOCK 0" ON BEDROCK, PAVEMENT OR RIPRAP KEY IN ROCK SOCK 2" ON EARTH SECTION B CIP-1. CULVERT INLET PROTECTION CULVERT INLET PROTECTION INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF CULVERT INLET PROTECTION 2 SEE ROCK SOCK DESIGN DETAIL FOR ROCK GRADATION REQUIREMENTS AND JOINTING DETAIL CULVERT INLET PROTECTION MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 SEDIMENT ACCUMULATED UPSTREAM OF THE CULVERT SHALL BE REMOVED WHEN THE SEDIMENT DEPTH IS Yz THE HEIGHT OF THE ROCK SOCK 5 CULVERT INLET PROTECTION SHALL REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED AND APPROVED BY THE LOCAL JURISDICTION (DETAILS AOAPTEO FROM AURORA, COLORADO, NOT AVAJIABLE IN AUTOCAD) NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED August 2013 Urban Drainage and Flood Control District IP-7 Urban Storm Drainage Criteria Manual Volume 3 SC -6 Inlet Protection (IP) GENERAL INLET PROTECTION INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF INLET PROTECTION -TYPE OF INLET PROTECTION (IP I IP 2, IP 3, IP 4. IP 5, IP 6) 2 INLET PROTECTION SHALL BE INSTALLED PROMPTLY AFTER INLET CONSTRUCTION OR PAVING IS COMPLETE (TYPICALLY WITHIN 48 HOURS) IF A RAINFALL/RUNOFF EVENT IS FORECAST, INSTALL INLET PROTECTION PRIOR TO ONSET OF EVENT 3 MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED INLET PROTECTION MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 SEDIMENT ACCUMULATED UPSTREAM OF INLET PROTECTION SHALL BE REMOVED AS NECESSARY TO MAINTAIN BMP EFFECTIVENESS, TYPICALLY WHEN STORAGE VOLUME REACHES 50% OF CAPACITY, A DEPTH OF 6" WHEN SILT FENCE IS USED, OR Ya OF THE HEIGHT FOR STRAW BALES 5 INLET PROTECTION IS TO REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS PERMANENTLY STABILIZED, UNLESS THE LOCAL JURISDICTION APPROVES EARLIER REMOVAL OF INLET PROTECTION IN STREETS 6 WHEN INLET PROTECTION AT AREA INLETS IS REMOVED, THE DISTURBED AREA SHALL BE COVERED WITH TOP SOIL SEEDED AND MULCHED, OR OTHERWISE STABIUZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION (DETAIL ADAPTED FROM TOWN OF PARKER COLORADO AND CITY OF AURORA, COLORADO, NOT AVAILABLE IN AUTOCAD) NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED NOTE THE DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL METHODS OF INLET PROTECTION IN THE DENVER METROPOLITAN AREA THERE ARE MANY PROPRIETARY INLET PROTECTION METHODS ON THE MARKET UDFCD NEITHER ENDORSES NOR DISCOURAGES USE OF PROPRIETARY INLET PROTECTION, HOWEVER, IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWMP AND THE BMP MUST BE INSTALLED AND MAINTAINED AS SHOWN IN THE MANUFACTURER'S DETAILS NOTE SOME MUNICIPALITIES DISCOURAGE OR PROHIBIT THE USE OF STRAW BALES FOR INLET PROTECTION CHECK WITH LOCAL JURISDICTION TO DETERMINE IF STRAW BALE INLET PROTECTION IS ACCEPTABLE IP-8 Urban Drainage and Flood Control District August 2013 Urban Storm Drainage Criteria Manual Volume 3 Concrete Washout Area (CWA) MM -1 Description Concrete waste management involves designating and properly managing a specific area of the construction site as a concrete washout area. A concrete washout area can be created using one of several approaches designed to receive wash water from washing of tools and concrete mixer chutes, liquid concrete waste from dump trucks, mobile batch mixers, or pump trucks. Three basic approaches are available: excavation of a pit in the ground, use of an above ground storage area, or use of prefabricated haul - away concrete washout containers. Surface discharges of concrete washout water from construction sites are prohibited. Appropriate Uses Photograph CWA-1. Example of concrete washout area. Note gravel tracking pad for access and sign. Concrete washout areas must be designated on all sites that will generate concrete wash water or liquid concrete waste from onsite concrete mixing or concrete delivery. Because pH is a pollutant of concern for washout activities, when unlined pits are used for concrete washout, the soil must have adequate buffering capacity to result in protection of state groundwater standards; otherwise, a liner/containment must be used. The following management practices are recommended to prevent an impact from unlined pits to groundwater: ■ The use of the washout site should be temporary (less than 1 year), and ■ The washout site should be not be located in an area where shallow groundwater may be present, such as near natural drainages, springs, or wetlands. Design and Installation Concrete washout activities must be conducted in a manner that does not contribute pollutants to surface waters or stormwater runoff. Concrete washout areas may be lined or unlined excavated pits in the ground, commercially manufactured prefabricated washout containers, or aboveground holding areas constructed of berms, sandbags or straw bales with a plastic liner. Although unlined washout areas may be used, lined pits may be required to protect groundwater under certain conditions. Do not locate an unlined washout area within 400 feet of any natural drainage pathway or waterbody or within 1,000 feet of any wells or drinking water sources. Even for lined concrete washouts, it is advisable to locate the facility away from waterbodies and drainage paths. If site constraints make these Concrete Washout Area Functions Erosion Control No Sediment Control No Site/Material Management Yes November 2010 Urban Drainage and Flood Control District CWA-1 Urban Storm Drainage Criteria Manual Volume 3 MM -1 Concrete Washout Area (CWA) setbacks infeasible or if highly permeable soils exist in the area, then the pit must be installed with an impermeable liner (16 mil minimum thickness) or surface storage alternatives using prefabricated concrete washout devices or a lined aboveground storage area should be used. Design details with notes are provided in Detail CWA- 1 for pits and CWA-2 for aboveground storage areas. Pre -fabricated concrete washout container information can be obtained from vendors. Maintenance and Removal A key consideration for concrete washout areas is to ensure that adequate signage is in place identifying the location of the washout area. Part of inspecting and maintaining washout areas is ensuring that adequate signage is provided and in good repair and that the washout area is being used, as opposed to washout in non -designated areas of the site. Remove concrete waste in the washout area, as needed to maintain BMP function (typically when filled to about two-thirds of its capacity). Collect concrete waste and deliver offsite to a designated disposal location. Upon termination of use of the washout site, accumulated solid waste, including concrete waste and any contaminated soils, must be removed from the site to prevent on -site disposal of solid waste. If the wash water is allowed to evaporate and the concrete hardens, it may be recycled. Photograph CWA-2. Prefabricated concrete washout. Photo courtesy of CDOT. Photograph CWA-3. Earthen concrete washout. Photo courtesy of CDOT. CWA-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Concrete Washout Area (CWA) CONCRETE WASHOUT AREA PLAN COMPACTED BERM AROUND THE PERIMETER 12" TYP >4 k'ITA BI { CWA VEHICLE TRACKING CONTROL (SEE VTC DETAIL) OR OTHER STABLE SURFACE 2% SLOPE 13' MIN 1 UNDISTURBED OR_\ ≥3 } >3 COMPACTED SOIL I VEHICLE TRACKING 8 X 8 MIN CONTROL (SEE VTC SECTION A DETAIL CWA-1 CONCRETE WASHOUT AREA CWA INSTALLATION NOTES 1 SEE PLAN VIEW FOR -CWA INSTALLATION LOCATION 2 DO NOT LOCATE AN UNLINED CWA WITHIN 400 OF ANY NATURAL DRAINAGE PATHWAY OR WATERBODY DO NOT LOCATE WITHIN 1,000' OF ANY WELLS OR DRINKING WATER SOURCES IF SITE CONSTRAINTS MAKE THIS INFEASIBLE, OR IF HIGHLY PERMEABLE SOILS EXIST ON SITE, THE CWA MUST BE INSTALLED WITH AN IMPERMEABLE LINER (16 MIL MIN THICKNESS) OR SURFACE STORAGE ALTERNATIVES USING PREFABRICATED CONCRETE WASHOUT DEVICES OR A LINED ABOVE GROUND STORAGE ARE SHOULD BE USED 3 THE CWA SHALL BE INSTALLED PRIOR TO CONCRETE PLACEMENT ON SITE 4 CWA SHALL INCLUDE A FLAT SUBSURFACE PIT THAT IS AT LEAST 8' BY 8' SLOPES LEADING OUT OF THE SUBSURFACE PIT SHALL BE 31 OR FLATTER THE PIT SHALL BE AT LEAST 3' DEEP 5 BERM SURROUNDING SIDES AND BACK OF THE CWA SHALL HAVE MINIMUM HEIGHT OF 1' 6 VEHICLE TRACKING PAD SHALL BE SLOPED 2% TOWARDS THE CWA 7 SIGNS SHALL BE PLACED AT THE CONSTRUCTION ENTRANCE, AT THE CWA, AND ELSEWHERE AS NECESSARY TO CLEARLY INDICATE THE LOCATION OF THE CWA TO OPERATORS OF CONCRETE TRUCKS AND PUMP RIGS 8 USE EXCAVATED MATERIAL FOR PERIMETER BERM CONSTRUCTION November 2010 Urban Drainage and Flood Control District CWA-3 Urban Storm Drainage Criteria Manual Volume 3 ti 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 THE CWA SHALL BE REPAIRED, CLEANED, OR ENLARGED AS NECESSARY TO MAINTAIN CAPACITY FOR CONCRETE WASTE CONCRETE MATERIALS, ACCUMULATED IN PIT, SHALL BE REMOVED ONCE THE MATERIALS HAVE REACHED A DEPTH OF 2' 5 CONCRETE WASHOUT WATER, WASTED PIECES OF CONCRETE AND ALL OTHER DEBRIS IN THE SUBSURFACE PIT SHALL BE TRANSPORTED FROM THE JOB SITE IN A WATER -TIGHT CONTAINER AND DISPOSED OF PROPERLY 6 THE CWA SHALL REMAIN IN PLACE UNTIL ALL CONCRETE FOR THE PROJECT IS PLACED 7 WHEN THE CWA IS REMOVED, COVER THE DISTURBED AREA WITH TOP SOIL, SEED AND MULCH OR OTHERWISE STABILIZED IN A MANNER APPROVED BY THE LOCAL JURISDICTION (DETAIL ADAPTED FROM DOUGLAS COUNTY COLORADO AND THE CITY OF PARKER COLORADO NOT AVAILABLE IN AUTOCAD) NOTEMANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED CWA-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stockpile Management (SP) MM -2 Description Stockpile management includes measures to minimize erosion and sediment transport from soil stockpiles. Appropriate Uses Stockpile management should be used when soils or other erodible materials are stored at the construction site. Special attention should be given to stockpiles in close proximity to natural or manmade storm systems. Design and Installation Photograph SP -1. A topsoil stockpile that has been partially revegetated and is protected by silt fence perimeter control. Locate stockpiles away from all drainage system components including storm sewer inlets. Where practical, choose stockpile locations that that will remain undisturbed for the longest period of time as the phases of construction progress. Place sediment control BMPs around the perimeter of the stockpile, such as sediment control logs, rock socks, silt fence, straw bales and sand bags. See Detail SP -1 for guidance on proper establishment of perimeter controls around a stockpile. For stockpiles in active use, provide a stabilized designated access point on the upgradient side of the stockpile. Stabilize the stockpile surface with surface roughening, temporary seeding and mulching, erosion control blankets, or soil binders. Soils stockpiled for an extended period (typically for more than 60 days) should be seeded and mulched with a temporary grass cover once the stockpile is placed (typically within 14 days). Use of mulch only or a soil binder is acceptable if the stockpile will be in place for a more limited time period (typically 30-60 days). Timeframes for stabilization of stockpiles noted in this fact sheet are "typical" guidelines. Check permit requirements for specific federal, state, and/or local requirements that may be more prescriptive. Stockpiles should not be placed in streets or paved areas unless no other practical alternative exists. See the Stabilized Staging Area Fact Sheet for guidance when staging in roadways is unavoidable due to space or right-of-way constraints. For paved areas, rock socks must be used for perimeter control and all inlets with the potential to receive sediment from the stockpile (even from vehicle tracking) must be protected. Maintenance and Removal Inspect perimeter controls and inlet protection in accordance with their respective BMP Fact Sheets. Where seeding, mulch and/or soil binders are used, reseeding or reapplication of soil binder may be necessary. When temporary removal of a perimeter BMP is necessary to access a stockpile, ensure BMPs are reinstalled in accordance with their respective design detail section. Stockpile Management Functions Erosion Control Yes Sediment Control Yes Site/Material Management Yes November 2010 Urban Drainage and Flood Control District SP -1 Urban Storm Drainage Criteria Manual Volume 3 MMm2 Stockpile Management (SM) When the stockpile is no longer needed, properly dispose of excess materials and revegetate or otherwise stabilize the ground surface where the stockpile was located SP -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 STOCKPILE Stockpile Management (SP) MM®2 SP 3 0' MIN l , SILT FENCE (SEE SF DETAIL FOR \ / INSTALLATION REQUIREMENTS) STOCKPILE PROTECTION PLAN MAXIMUM 2 SILT FENCE (SEE SF DETAIL FOR 1 INSTALLATION REQUIREMENTS) SECTION A SP -1 STOCKPILE PROTECTION STOCKPILE PROTECTION INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF STOCKPILES -TYPE OF STOCKPILE PROTECTION 2 INSTALL PERIMETER CONTROLS IN ACCORDANCE WITH THEIR RESPECTIVE DESIGN DETAILS SILT FENCE IS SHOWN IN THE STOCKPILE PROTECTION DETAILS HOWEVER, OTHER TYPES OF PERIMETER CONTROLS INCLUDING SEDIMENT CONTROL LOGS OR ROCK SOCKS MAY BE SUITABLE IN SOME CIRCUMSTANCES CONSIDERATIONS FOR DETERMINING THE APPROPRIATE TYPE OF PERIMETER CONTROL FOR A STOCKPILE INCLUDE WHETHER THE STOCKPILE IS LOCATED ON A PERVIOUS OR IMPERVIOUS SURFACE, THE RELATIVE HEIGHTS OF THE PERIMETER CONTROL AND STOCKPILE, THE ABILITY OF THE PERIMETER CONTROL TO CONTAIN THE STOCKPILE WITHOUT FAILING IN THE EVENT THAT MATERIAL FROM THE STOCKPILE SHIFTS OR SLUMPS AGAINST THE PERIMETER, AND OTHER FACTORS 3 STABILIZE THE STOCKPILE SURFACE WITH SURFACE ROUGHENING, TEMPORARY SEEDING AND MULCHING, EROSION CONTROL BLANKETS, OR SOIL BINDERS SOILS STOCKPILED FOR AN EXTENDED PERIOD (TYPICALLY FOR MORE THAN 60 DAYS) SHOULD BE SEEDED AND MULCHED WITH A TEMPORARY GRASS COVER ONCE THE STOCKPILE IS PLACED (TYPICALLY WITHIN 14 DAYS) USE OF MULCH ONLY OR A SOIL BINDER IS ACCEPTABLE IF THE STOCKPILE WILL BE IN PLACE FOR A MORE LIMITED TIME PERIOD (TYPICALLY 30-60 DAYS) 4 FOR TEMPORARY STOCKPILES ON THE INTERIOR PORTION OF A CONSTRUCTION SITE, WHERE OTHER OOWNGRADIENT CONTROLS, INCLUDING PERIMETER CONTROL, ARE IN PLACE, STOCKPILE PERIMETER CONTROLS MAY NOT BE REQUIRED November 2010 Urban Drainage and Flood Control District SP -3 Urban Storm Drainage Criteria Manual Volume 3 l M®2 Stockpile Management (SM) OCKPILE PROTECTION MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE STOCKPILE PROTECTION MAINTENANCE NOTES 4 IF PERIMETER PROTECTION MUST BE MOVED TO ACCESS SOIL STOCKPILE REPLACE PERIMETER CONTROLS BY THE END OF THE WORKDAY 5 STOCKPILE PERIMETER CONTROLS CAN BE REMOVED ONCE ALL THE MATERIAL FROM THE STOCKPILE HAS BEEN USED (DETAILS ADAPTED FROM PARKER COLORADO NOT AVAILABLE IN AUTOCAD) NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED SP -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stockpile Management (SF) MM -2 ORANGE SAFETY CONE TARP ANCHOR -- ROAD CL ROADWAY -� A POLY LINER -\ F__ti _X�' ___ p LPOLY TARP 6' MAX SA- P SOIL/LANDSCAPE '- MATERIAL 6" PVC PIPE FOR DRAINAGE IN FLOWLINE CURB LINE TARP ANCHOR (CINDER BLOCK, OR 5 GALLON BUCKET OF WATER) POLY LINER BERM MATERIAL (TRIANGULAR SILT DIKE, 6"MIN 1 SEDIMENT CONTROL LOG, 6' MAX MUST NOT 6" PVC PIPE ROCK SOCK, OR OTHER BE LOCATED WITHIN WRAPPED MATERIAL) A DRIVE LANE SP -2 MATERIALS STAGING IN ROADWAY MATERIALS STAGING IN ROADWAYS INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF MATERIAL STAGING AREA(S) -CONTRACTOR MAY ADJUST LOCATION AND SIZE OF STAGING AREA WITH APPROVAL FROM THE LOCAL JURISDICTION 2 FEATURE MUST BE INSTALLED PRIOR TO EXCAVATION, EARTHWORK OR DELIVERY OF MATERIALS 3 MATERIALS MUST BE STATIONED ON THE POLY LINER ANY INCIDENTAL MATERIALS DEPOSITED ON PAVED SECTION OR ALONG CURB LINE MUST BE CLEANED UP PROMPTLY 4 POLY LINER AND TARP COVER SHOULD BE OF SIGNIFICANT THICKNESS TO PREVENT DAMAGE OR LOSS OF INTEGRITY 5 SAND BAGS MAY BE SUBSTITUTED TO ANCHOR THE COVER TARP OR PROVIDE BERMING UNDER THE BASE LINER 6 FEATURE IS NOT INTENDED FOR USE WITH WET MATERIAL THAT WILL BE DRAINING AND/OR SPREADING OUT ON THE POLY LINER OR FOR DEMOLITION MATERIALS 7 THIS FEATURE CAN BE USED FOR -UTILITY REPAIRS -WHEN OTHER STAGING LOCATIONS AND OPTIONS ARE LIMITED -OTHER LIMITED APPLICATION AND SHORT DURATION STAGING November 2010 Urban Drainage and Flood Control District SP -5 Urban Storm Drainage Criteria Manual Volume 3 M -2 Stockpile Management (SM) MATERIALS STAGING IN ROADWAY MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 INSPECT PVC PIPE ALONG CURB LINE FOR CLOGGING AND DEBRIS REMOVE OBSTRUCTIONS PROMPTLY 5 CLEAN MATERIAL FROM PAVED SURFACES BY SWEEPING OR VACUUMING NOTE. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED (DETAILS ADAPTED FROM AURORA, COLORADO) SP -6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (GH) Description Implement construction site good housekeeping practices to prevent pollution associated with solid, liquid and hazardous construction -related materials and wastes. Stormwater Management Plans (SWMPs) should clearly specify BMPs including these good housekeeping practices: ■ Provide for waste management. ■ Establish proper building material staging areas. ■ Designate paint and concrete washout areas. ■ Establish proper equipment/vehicle fueling and maintenance practices. ■ Control equipment/vehicle washing and allowable non- stormwater discharges. • Develop a spill prevention and response plan. Acknowledgement: This Fact Sheet is based directly on EPA guidance provided in Developing Your Stormwater Pollution Prevent Plan (EPA 2007). Appropriate Uses MM -3 Photographs GH-1 and GH-2. Proper materials storage and secondary containment for fuel tanks are important good housekeeping practices. Photos courtesy of CDOT and City of Aurora. Good housekeeping practices are necessary at all construction sites. Design and Installation The following principles and actions should be addressed in SWMPs: ■ Provide for Waste Management. Implement management procedures and practices to prevent or reduce the exposure and transport of pollutants in stormwater from solid, liquid and sanitary wastes that will be generated at the site. Practices such as trash disposal, recycling, proper material handling, and cleanup measures can reduce the potential for stormwater runoff to pick up construction site wastes and discharge them to surface waters. Implement a comprehensive set of waste -management practices for hazardous or toxic materials, such as paints, solvents, petroleum products, pesticides, wood preservatives, acids, roofing tar, and other materials. Practices should include storage, handling, inventory, and cleanup procedures, in case of spills. Specific practices that should be considered include: Solid or Construction Waste o Designate trash and bulk waste -collection areas on - site. Good Housekeeping Functions Erosion Control No Sediment Control No Site/Material Management Yes November 2010 Urban Drainage and Flood Control District GH- 1 Urban Storm Drainage Criteria Manual Volume 3 MM -3 Good Housekeeping Practices (GH o Recycle materials whenever possible (e.g., paper, wood, concrete, oil). o Segregate and provide proper disposal options for hazardous material wastes. o Clean up litter and debris from the construction site daily. o Locate waste -collection areas away from streets, gutters, watercourses, and storm drains. Waste - collection areas (dumpsters, and such) are often best located near construction site entrances to minimize traffic on disturbed soils. Consider secondary containment around waste collection areas to minimize the likelihood of contaminated discharges. o Empty waste containers before they are full and overflowing. Sanitary and Septic Waste o Provide convenient, well -maintained, and properly located toilet facilities on -site. o Locate toilet facilities away from storm drain inlets and waterways to prevent accidental spills and contamination of stormwater. o Maintain clean restroom facilities and empty portable toilets regularly. o Where possible, provide secondary containment pans under portable toilets. o Provide tie -downs or stake -downs for portable toilets. o Educate employees, subcontractors, and suppliers on locations of facilities. o Treat or dispose of sanitary and septic waste in accordance with state or local regulations. Do not discharge or bury wastewater at the construction site. o Inspect facilities for leaks. If found, repair or replace immediately. o Special care is necessary during maintenance (pump out) to ensure that waste and/or biocide are not spilled on the ground. Hazardous Materials and Wastes o Develop and implement employee and subcontractor education, as needed, on hazardous and toxic waste handling, storage, disposal, and cleanup. o Designate hazardous waste -collection areas on -site. o Place all hazardous and toxic material wastes in secondary containment. Photograph GH-3. Locate portable toilet facilities on level surfaces away from waterways and storm drains. Photo courtesy of WWE. GH-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (GH) MM -3 o Hazardous waste containers should be inspected to ensure that all containers are labeled properly and that no leaks are present Establish Proper Building Material Handling and Staging Areas The SWMP should include comprehensive handling and management procedures for building materials, especially those that are hazardous or toxic Paints, solvents, pesticides, fuels and oils, other hazardous materials or building materials that have the potential to contaminate stormwater should be stored indoors or under cover whenever possible or in areas with secondary containment Secondary containment measures prevent a spill from spreading across the site and may include dikes, berms, curbing, or other containment methods Secondary containment techniques should also ensure the protection of groundwater Designate staging areas for activities such as fueling vehicles, mixing paints, plaster, mortar, and other potential pollutants Designated staging areas enable easier monitoring of the use of materials and clean up of spills Training employees and subcontractors is essential to the success of this pollution prevention principle Consider the following specific materials handling and staging practices o Train employees and subcontractors in proper handling and storage practices o Clearly designate site areas for staging and storage with signs and on construction drawings Staging areas should be located in areas central to the construction site Segment the staging area into sub -areas designated for vehicles, equipment, or stockpiles Construction entrances and exits should be clearly marked so that delivery vehicles enter/exit through stabilized areas with vehicle tracking controls (See Vehicle Tracking Control Fact Sheet) o Provide storage in accordance with Spill Protection, Control and Countermeasures (SPCC) requirements and plans and provide cover and impermeable perimeter control, as necessary, for hazardous materials and contaminated soils that must be stored on site o Ensure that storage containers are regularly inspected for leaks, corrosion, support or foundation failure, or other signs of deterioration and tested for soundness o Reuse and recycle construction materials when possible Designate Concrete Washout Areas Concrete contractors should be encouraged to use the washout facilities at their own plants or dispatch facilities when feasible, however, concrete washout commonly occurs on construction sites If it is necessary to provide for concrete washout areas on - site, designate specific washout areas and design facilities to handle anticipated washout water Washout areas should also be provided for paint and stucco operations Because washout areas can be a source of pollutants from leaks or spills, care must be taken with regard to their placement and proper use See the Concrete Washout Area Fact Sheet for detailed guidance Both self -constructed and prefabricated washout containers can fill up quickly when concrete, paint, and stucco work are occurring on large portions of the site Be sure to check for evidence that contractors are using the washout areas and not dumping materials onto the ground or into drainage facilities If the washout areas are not being used regularly, consider posting additional signage, relocating the facilities to more convenient locations, or providing training to workers and contractors When concrete, paint, or stucco is part of the construction process, consider these practices which will help prevent contamination of stormwater Include the locations of these areas and the maintenance and inspection procedures in the SWMP November 2010 Urban Drainage and Flood Control District GH-3 Urban Storm Drainage Criteria Manual Volume 3 MM -3 Good Housekeeping Practices (G o Do not washout concrete trucks or equipment into storm drains, streets, gutters, uncontained areas, or streams Only use designated washout areas o Establish washout areas and advertise their locations with signs Ensure that signage remains in good repair o Provide adequate containment for the amount of wash water that will be used o Inspect washout structures daily to detect leaks or tears and to identify when materials need to be removed o Dispose of materials properly The preferred method is to allow the water to evaporate and to recycle the hardened concrete Full service companies may provide dewatering services and should dispose of wastewater properly Concrete wash water can be highly polluted It should not be discharged to any surface water, storm sewer system, or allowed to infiltrate into the ground in the vicinity of waterbodies Washwater should not be discharged to a sanitary sewer system without first receiving written permission from the system operator ■ Establish Proper Equipment/Vehicle Fueling and Maintenance Practices Create a clearly designated on -site fueling and maintenance area that is clean and dry The on -site fueling area should have a spill kit, and staff should know how to use it If possible, conduct vehicle fueling and maintenance activities in a covered area Consider the following practices to help prevent the discharge of pollutants to stormwater from equipment/vehicle fueling and maintenance Include the locations of designated fueling and maintenance areas and inspection and maintenance procedures in the SWMP o Train employees and subcontractors in proper fueling procedures (stay with vehicles during fueling, proper use of pumps, emergency shutoff valves, etc ) - o Inspect on -site vehicles and equipment regularly for leaks, equipment damage, and other service problems o Clearly designate vehicle/equipment service areas away from drainage facilities and watercourses to prevent stormwater run-on and runoff o Use drip pans, drip cloths, or absorbent pads when replacing spent fluids o Collect all spent fluids, store in appropriate labeled containers in the proper storage areas, and recycle fluids whenever possible o Control Equipment/Vehicle Washing and Allowable Non-Stormwater Discharges. Implement practices to prevent contamination of surface and groundwater from equipment and vehicle wash water Representative practices include o Educate employees and subcontractors on proper washing procedures o Use off -site washing facilities, when available o Clearly mark the washing areas and inform workers that all washing must occur in this area o Contain wash water and treat it using BMPs Infiltrate washwater when possible, but maintain separation from drainage paths and waterbodies GH-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Good Housekeeping Practices (GH) MM -3 o Use high-pressure water spray at vehicle washing facilities without detergents Water alone can remove most dirt adequately o Do not conduct other activities, such as vehicle repairs, in the wash area o Include the location of the washing facilities and the inspection and maintenance procedures in the SWMP Develop a Spill Prevention and Response Plan. Spill prevention and response procedures must be identified in the SWMP Representative procedures include identifying ways to reduce the chance of spills, stop the source of spills, contain and clean up spills, dispose of materials contaminated by spills, and train personnel responsible for spill prevention and response The plan should also specify material handling procedures and storage requirements and ensure that clear and concise spill cleanup procedures are provided and posted for areas in which spills may potentially occur When developing a spill prevention plan, include the following o Note the locations of chemical storage areas, storm drains, tributary drainage areas, surface waterbodies on or near the site, and measures to stop spills from leaving the site o Provide proper handling and safety procedures for each type of waste Keep Material Safety Data Sheets (MSDSs) for chemical used on site with the SWMP o Establish an education program for employees and subcontractors on the potential hazards to humans and the environment from spills and leaks o Specify how to notify appropriate authorities, such as police and fire departments, hospitals, or municipal sewage treatment facilities to request assistance Emergency procedures and contact numbers should be provided in the SWMP and posted at storage locations o Describe the procedures, equipment and materials for immediate cleanup of spills and proper disposal o Identify personnel responsible for implementing the plan in the event of a spill Update the spill prevention plan and clean up materials as changes occur to the types of chemicals stored and used at the facility November 2010 Urban Drainage and Flood Control District GH-5 Urban Storm Drainage Criteria Manual Volume 3 MM -3 Good Housekeeping Practices (G Spill Prevention, Control, and Countermeasure (SPCC) Plan Construction sites may be subject to 40 CFR Part 112 regulations that require the preparation and implementation of a SPCC Plan to prevent oil spills from aboveground and underground storage tanks. The facility is subject to this rule if it is a non -transportation -related facility that: ■ Has a total storage capacity greater than 1,320 gallons or a completely buried storage capacity greater than 42,000 gallons. ■ Could reasonably be expected to discharge oil in quantities that may be harmful to navigable waters of the United States and adjoining shorelines. Furthermore, if the facility is subject to 40 CFR Part 112, the SWMP should reference the SPCC Plan. To find out more about SPCC Plans, see EPA's website on SPPC at www.epa.gov/oilspill/spcc.htm. /oilspill/spcc.htm. Reporting Oil Spills In the event of an oil spill, contact the National Response Center toll free at 1-800-424- 8802 for assistance, or for more details, visit their website: www.nrc.uscg.mil. Maintenance and Removal Effective implementation of good housekeeping practices is dependent on clear designation of personnel responsible for supervising and implementing good housekeeping programs, such as site cleanup and disposal of trash and debris, hazardous material management and disposal, vehicle and equipment maintenance, and other practices. Emergency response "drills" may aid in emergency preparedness. Checklists may be helpful in good housekeeping efforts. Staging and storage areas require permanent stabilization when the areas are no longer being used for construction -related activities. Construction -related materials, debris and waste must be removed from the construction site once construction is complete. Design Details See the following Fact Sheets for related Design Details: MM -I Concrete Washout Area MM -2 Stockpile Management SM-4 Vehicle Tracking Control Design details are not necessary for other good housekeeping practices; however, be sure to designate where specific practices will occur on the appropriate construction drawings. GH-6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Wind Erosion/Dust Control (DC) Description Wind erosion and dust control BMPs help to keep soil particles from entering the air as a result of land disturbing construction activities. These BMPs include a variety of practices generally focused on either graded disturbed areas or construction roadways. For graded areas, practices such as seeding and mulching, use of soil binders, site watering, or other practices that provide prompt surface cover should be used. For construction roadways, road watering and stabilized surfaces should be considered. Appropriate Uses EC -14 Photograph DC -t. Water truck used for dust suppression. Photo courtesy of Douglas County. Dust control measures should be used on any site where dust poses a problem to air quality. Dust control is important to control for the health of construction workers and surrounding waterbodies. Design and Installation The following construction BMPs can be used for dust control: ■ An irrigation/sprinkler system can be used to wet the top layer of disturbed soil to help keep dry soil particles from becoming airborne. ■ Seeding and mulching can be used to stabilize disturbed surfaces and reduce dust emissions. ■ Protecting existing vegetation can help to slow wind velocities across the ground surface, thereby limiting the likelihood of soil particles to become airborne. ■ Spray -on soil binders form a bond between soil particles keeping them grounded. Chemical treatments may require additional permitting requirements. Potential impacts to surrounding waterways and habitat must be considered prior to use. ■ Placing rock on construction roadways and entrances will help keep dust to a minimum across the construction site. ■ Wind fences can be installed on site to reduce wind speeds. Install fences perpendicular to the prevailing wind direction for maximum effectiveness. Maintenance and Removal When using an irrigation/sprinkler control system to aid in dust control, be careful not to overwater. Overwatering will cause construction vehicles to track mud off -site. Wind Erosion Control/ Dust Control Functions Erosion Control Yes Sediment Control No Site/Material Management Moderate November 2010 Urban Drainage and Flood Control District DC -1 Urban Storm Drainage Criteria Manual Volume 3 Stabilized Staging Area (SSA) Description A stabilized staging area is a clearly designated area where construction equipment and vehicles, stockpiles, waste bins, and other construction -related materials are stored. The contractor office trailer may also be located in this area. Depending on the size of the construction site, more than one staging area may be necessary. Appropriate Uses Most construction sites will require a staging area, which should be clearly designated in SWMP drawings. The layout of the staging area may vary depending on the type of construction activity. Staging areas located in roadways due to space constraints require special measures to avoid materials being washed into storm inlets. SM-6 Design and Installation Photograph SSA -1. Example of a staging area with a gravel surface to prevent mud tracking and reduce runoff. Photo courtesy of Douglas County. Stabilized staging areas should be completed prior to other construction activities beginning on the site. Major components of a stabilized staging area include: ■ Appropriate space to contain storage and provide for loading/unloading operations, as well as parking if necessary. ■ A stabilized surface, either paved or covered, with 3 -inch diameter aggregate or larger. ■ Perimeter controls such as silt fence, sediment control logs, or other measures. ■ Construction fencing to prevent unauthorized access to construction materials. ■ Provisions for Good Housekeeping practices related to materials storage and disposal, as described in the Good Housekeeping BMP Fact Sheet. ■ A stabilized construction entrance/exit, as described in the Vehicle Tracking Control BMP Fact Sheet, to accommodate traffic associated with material delivery and waste disposal vehicles. Over -sizing the stabilized staging area may result in disturbance of existing vegetation in excess of that required for the project. This increases costs, as well as requirements for long-term stabilization following the construction period. When designing the stabilized staging area, minimize the area of disturbance to the extent practical. Stabilized Staging Area Functions Erosion Control Yes Sediment Control Moderate Site/Material Yes November 2010 Urban Drainage and Flood Control District SSA -1 Urban Storm Drainage Criteria Manual Volume 3 SM-6 Stabilized Staging Area (SSA) Minimizing Long -Term Stabilization Requirements ■ Utilize off -site parking and restrict vehicle access to the site. ■ Use construction mats in lieu of rock when staging is provided in an area that will not be disturbed otherwise. ■ Consider use of a bermed contained area for materials and equipment that do not require a stabilized surface. ■ Consider phasing of staging areas to avoid disturbance in an area that will not be otherwise disturbed. See Detail SSA -1 for a typical stabilized staging area and SSA -2 for a stabilized staging area when materials staging in roadways is required. Maintenance and Removal Maintenance of stabilized staging areas includes maintaining a stable surface cover of gravel, repairing perimeter controls, and following good housekeeping practices. When construction is complete, debris, unused stockpiles and materials should be recycled or properly disposed. In some cases, this will require disposal of contaminated soil from equipment leaks in an appropriate landfill. Staging areas should then be permanently stabilized with vegetation or other surface cover planned for the development. SSA -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Stabilized Staging Area (SSA) SM-6 SF/CF SF/CF ro ONSU'E[____v • CONSTRUCTION VEHICLE . . BARKING (1F° \ NEEDED)a CONSTRUCTION El SITE ACCESS \ 1 ° ° a � o n 'T1 a N ' ° a MATERIAL STORAGE CONSTRUCTION TRAILERS 3" MIN THICKNESS GRANULAR MATERIAL SSA STABILIZED AREA ° v CONSTRUCTION ' n ENTRANCE (SEE ° v� DETAILS VTC-1 TO VTC-3) SF/CF SF/CF SILT FENCE OR CONSTRUCTION FENCING AS NEEDED EXISTING ROADWAY SSA -1. STABILIZED STAGING AREA STABILIZED STAGING AREA INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION OF STAGING AREA(S) -CONTRACTOR MAY ADJUST LOCATION AND SIZE OF STAGING AREA WITH APPROVAL FROM THE LOCAL JURISDICTION 2 STABILIZED STAGING AREA SHOULD BE APPROPRIATE FOR THE NEEDS OF THE SITE OVERSIZING RESULTS IN A LARGER AREA TO STABILIZE FOLLOWING CONSTRUCTION 3 STAGING AREA SHALL BE STABILIZED PRIOR TO OTHER OPERATIONS ON THE SITE 4 THE STABILIZED STAGING AREA SHALL CONSIST OF A MINIMUM 3" THICK GRANULAR MATERIAL 5 UNLESS OTHERWISE SPECIFIED BY LOCAL JURISDICTION, ROCK SHALL CONSIST OF DOT SECT #703 AASHTO #3 COARSE AGGREGATE OR 6" (MINUS) ROCK 6 ADDITIONAL PERIMETER BMPs MAY BE REQUIRED INCLUDING BUT NOT LIMITED TO SILT FENCE AND CONSTRUCTION FENCING STABILIZED STAGING AREA MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 ROCK SHALL BE REAPPLIED OR REGRADED AS NECESSARY IF RUTTING OCCURS OR UNDERLYING SUBGRADE BECOMES EXPOSED November 2010 Urban Drainage and Flood Control District SSA -3 Urban Storm Drainage Criteria Manual Volume 3 SM-6 Stabilized Staging Area (SSA) STABILIZED STAGING AREA MAINTENANCE NOTES 5 STABILIZED STAGING AREA SHALL BE ENLARGED IF NECESSARY TO CONTAIN PARKING, STORAGE, AND UNLOADING/LOADING OPERATIONS 6 THE STABILIZED STAGING AREA SHALL BE REMOVED AT THE END OF CONSTRUCTION THE GRANULAR MATERIAL SHALL BE REMOVED OR, IF APPROVED BY THE LOCAL JURISDICTION, USED ON SITE, AND THE AREA COVERED WITH TOPSOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED IN A MANNER APPROVED BY LOCAL JURISDICTION NOTE• MANY MUNICIPALITIES PROHIBIT THE USE OF RECYCLED CONCRETE AS GRANULAR MATERIAL FOR STABILIZED STAGING AREAS DUE TO DIFFICULTIES WITH RE-ESTABLISHMENT OF VEGETATION IN AREAS WHERE RECYCLED CONCRETE WAS PLACED NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED (DETAJLS ADAPTED FROM DOUGLPS COUNTY COLORADO, NOT AVAILABLE IN AUTOCAD) SSA -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Street Sweeping and Vacuumin Description Street sweeping and vacuuming remove sediment that has been tracked onto roadways to reduce sediment transport into storm drain systems or a surface waterway. Appropriate Uses Use this practice at construction sites where vehicles may track sediment offsite onto paved roadways. Design and Installation Photograph SS -t. A street sweeper removes sediment and potential Street sweeping or vacuuming should be pollutants along the curb line at a construction site. Photo courtesy of Tom Gore. conducted when there is noticeable sediment accumulation on roadways adjacent to the construction site. Typically, this will be concentrated at the entrance/exit to the construction site. Well -maintained stabilized construction entrances, vehicle tracking controls and tire wash facilities can help reduce the necessary frequency of street sweeping and SS) SM-7 vacuuming. On smaller construction sites, street sweeping can be conducted manually using a shovel and broom. Never wash accumulated sediment on roadways into storm drains. Maintenance and Removal ■ Inspect paved roads around the perimeter of the construction site on a daily basis and more frequently, as needed. Remove accumulated sediment, as needed. Following street sweeping, check inlet protection that may have been displaced during street sweeping. Inspect area to be swept for materials that may be hazardous prior to beginning sweeping operations. Street Sweeping/ Vacuuming Functions Erosion Control No Sediment Control Yes Site/Material Management Yes November 2010 Urban Drainage and Flood Control District SS -1 Urban Storm Drainage Criteria Manual Volume 3 Rock Sock (RS) SC -5 Description A rock sock is constructed of gravel that has been wrapped by wire mesh or a geotextile to form an elongated cylindrical filter. Rock socks are typically used either as a perimeter control or as part of inlet protection. When placed at angles in the curb line, rock socks are typically referred to as curb socks. Rock socks are intended to trap sediment from stormwater runoff that flows onto roadways as a result of construction activities. Appropriate Uses Photograph RS -1. Rock socks placed at regular intervals in a curb Rock socks can be used at the perimeter line can help reduce sediment loading to storm sewer inlets. Rock of a disturbed area to control localized socks can also be used as perimeter controls. sediment loading. A benefit of rock socks as opposed to other perimeter controls is that they do not have to be trenched or staked into the ground; therefore, they are often used on roadway construction projects where paved surfaces are present. Use rock socks in inlet protection applications when the construction of a roadway is substantially complete and the roadway has been directly connected to a receiving storm system. Design and Installation When rock socks are used as perimeter controls, the maximum recommended tributary drainage area per 100 lineal feet of rock socks is approximately 0.25 acres with disturbed slope length of up to 150 feet and a tributary slope gradient no steeper than 3:1. A rock sock design detail and notes are provided in Detail RS- 1. Also see the Inlet Protection Fact Sheet for design and installation guidance when rock socks are used for inlet protection and in the curb line. When placed in the gutter adjacent to a curb, rock socks should protrude no more than two feet from the curb in order for traffic to pass safely. If located in a high traffic area, place construction markers to alert drivers and street maintenance workers of their presence. Maintenance and Removal Rock socks are susceptible to displacement and breaking due to vehicle traffic. Inspect rock socks for damage and repair or replace as necessary. Remove sediment by sweeping or vacuuming as needed to maintain the functionality of the BMP, typically when sediment has accumulated behind the rock sock to one-half of the sock's height. Once upstream stabilization is complete, rock socks and accumulated sediment should be removed and properly disposed. Rock Sock Functions Erosion Control No Sediment Control Yes Site/Material Management No November 2010 Urban Drainage and Flood Control District RS- I Urban Storm Drainage Criteria Manual Volume 3 SC 5 Rock Sock (RS) RS 1Y2" (MINUS) CRUSHED ROCK ENCLOSED IN WIRE MESH 1J�" (MINUS) CRUSHED ROCK ENCLOSED IN WIRE MESH WIRE TIE ENDS tf 4" TO 6" MAX AT 0' ON BEDROCK OR ` GROUN❑ SURFACE L CURBS, OTHERWISE HARD SURFACE, 2" 6"-10" DEPENDING IN SOIL ON EXPECTED SEDIMENT LOADS ROCK SOCK SECTION ROCK SOCK PLAN ANY GAP AT JOINT SHALL BE FILLED WITH AN ADEQUATE AMOUNT OF 1}2" (MINUS) CRUSHED ROCK AND WRAPPED WITH ADDITIONAL WIRE MESH SECURED TO ENDS OF ROCK ROCK SOCK, REINFORCED SOCK AS AN ALTERNATIVE TO FILLING JOINTS TYP BETWEEN ADJOINING ROCK SOCKS WITH CRUSHED ROCK AND 12" 12" ADDITIONAL WIRE WRAPPING, ROCK SOCKS CAN BE OVERLAPPED (TYPICALLY 12 -INCH OVERLAP) TO AVOID GAPS ROCK SOCK JOINTING ROCK SOCK INSTALLATION NOTES 1 SEE PLAN VIEW FOR -LOCATION(S) OF ROCK SOCKS GRADATION TABLE SIEVE SIZE MASS PERCENT PASSING SQUARE MESH SIEVES NO 4 2 100 1Yz° 90 - 100 1" 20-55 0 - 15 0-5 MATCHES SPECIFICATIONS FOR NO 4 COARSE AGGREGATE FOR CONCRETE PER AASHTO M43 ALL ROCK SHALL BE FRACTURED FACE, ALL SIDES 2 CRUSHED ROCK SHALL BE 1Yz" (MINUS) IN SIZE WITH A FRACTURED FACE (ALL SIDES) AND SHALL COMPLY WITH GRADATION SHOWN ON THIS SHEET (1}¢" MINUS) 3 WIRE MESH SHALL BE FABRICATED OF 10 GAGE POULTRY MESH, OR EQUIVALENT, WITH A MAXIMUM OPENING OF 14", RECOMMENDED MINIMUM ROLL WIDTH OF 48' 4 WIRE MESH SHALL BE SECURED USING "HOG RINGS" OR WIRE TIES AT 6" CENTERS ALONG ALL JOINTS AND AT 2" CENTERS ON ENDS OF SOCKS 5 SOME MUNICIPALITIES MAY ALLOW THE USE OF FILTER FABRIC AS AN ALTERNATIVE TO WIRE MESH FOR THE ROCK ENCLOSURE RS -1. ROCK SOCK PERIMETER CONTROL RS -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rock Sock (RS) SC -5 OCK SOCK MAINTENANCE NO 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMP9 HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 ROCK SOCKS SHALL BE REPLACED IF THEY BECOME HEAVILY SOILED, OR DAMAGED BEYOND REPAIR 5 SEDIMENT ACCUMULATED UPSTREAM OF ROCK SOCKS SHALL BE REMOVED AS NEEDED TO MAINTAIN FUNCTIONALITY OF THE BMP, TYPICALLY WHEN DEPTH OF ACCUMULATED SEDIMENTS IS APPROXIMATELY }r� OF THE HEIGHT OF THE ROCK SOCK 6 ROCK SOCKS ARE TO REMAIN IN PLACE UNTIL THE UPSTREAM DISTURBED AREA IS STABILIZED AND APPROVED BY THE LOCAL JURISDICTION 7 WHEN ROCK SOCKS ARE REMOVED, ALL DISTURBED AREAS SHALL BE COVERED WITH TOPSOIL, SEEDED AND MULCHED OR OTHERWISE STABILIZED AS APPROVED BY LOCAL JURISDICTION (DETAIL ADAPTED FROM TOWN OF PARKER COLORADO AND CITY OF AURORA, COLORADO NOT AVAILABLE IN AUTOCAD) NOTE. MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED NOTE THE DETAILS INCLUDED WITH THIS FACT SHEET SHOW COMMONLY USED, CONVENTIONAL METHODS OF ROCK SOCK INSTALLATION IN THE DENVER METROPOLITAN AREA THERE ARE MANY OTHER SIMILAR PROPRIETARY PRODUCTS ON THE MARKET UDFCD NEITHER NDORSES NOR DISCOURAGES USE OF PROPRIETARY PROTECTION PRODUCTS, HOWEVER, IN THE EVENT PROPRIETARY METHODS ARE USED, THE APPROPRIATE DETAIL FROM THE MANUFACTURER MUST BE INCLUDED IN THE SWMP AND THE BMP MUST BE INSTALLED AND MAINTAINED AS SHOWN IN THE MANUFACTURER'S DETAILS November 2010 Urban Drainage and Flood Control District RS -3 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products (RECP) EC -6 Description Rolled Erosion Control Products (RECPs) include a variety of temporary or permanently installed manufactured products designed to control erosion and enhance vegetation establishment and survivability, particularly on slopes and in channels. For applications where natural vegetation alone will provide sufficient permanent erosion protection, temporary products such as netting, open weave textiles and a variety of erosion control blankets (ECBs) made of biodegradable natural materials Photograph RECP-1. Erosion control blanket protecting the slope from (e.g., Straw, coconut fiber) can be used. erosion and providing favorable conditions for revegetation. For applications where natural vegetation alone will not be sustainable under expected flow conditions, permanent rolled erosion control products such as turf reinforcement mats (TRMs) can be used. In particular, turf reinforcement mats are designed for discharges that exert velocities and sheer stresses that exceed the typical limits of mature natural vegetation. Appropriate Uses RECPs can be used to control erosion in conjunction with revegetation efforts, providing seedbed protection from wind and water erosion. These products are often used on disturbed areas on steep slopes, in areas with highly erosive soils, or as part of drainageway stabilization. In order to select the appropriate RECP for site conditions, it is important to have a general understanding of the general types of these products, their expected longevity, and general characteristics. The Erosion Control Technology Council (ECTC 2005) characterizes rolled erosion control products according to these categories: ■ Mulch control netting: A planar woven natural fiber or extruded geosynthetic mesh used as a temporary degradable rolled erosion control product to anchor loose fiber mulches. ■ Open weave textile: A temporary degradable rolled erosion control product composed of processed natural or polymer yams woven into a matrix, used to provide erosion control and facilitate vegetation establishment. ■ Erosion control blanket (ECB): A temporary degradable rolled erosion control product composed of processed natural or polymer fibers which are mechanically, structurally or chemically bound together to form a continuous matrix to provide erosion control and facilitate vegetation establishment. ECBs can be further differentiated into rapidly degrading single -net and double -net types or slowly degrading types. Rolled Erosion Control Products Functions Erosion Control Yes Sediment Control No Site/Material Management No November 2010 Urban Drainage and Flood Control District RECP-1 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) Turf Reinforcement Mat (TRM) A rolled erosion control product composed of non -degradable synthetic fibers, filaments, nets, wire mesh, and/or other elements, processed into a permanent, three- dimensional matrix of sufficient thickness TRMs, which may be supplemented with degradable components, are designed to impart immediate erosion protection, enhance vegetation establishment and provide long-term functionality by permanently reinforcing vegetation during and after maturation Note TRMs are typically used in hydraulic applications, such as high flow ditches and channels, steep slopes, stream banks, and shorelines, where erosive forces may exceed the limits of natural, unreinforced vegetation or in areas where limited vegetation establishment is anticipated Tables RECP- 1 and RECP-2 provide guidelines for selecting rolled erosion control products appropriate to site conditions and desired longevity Table RECP- I is for conditions where natural vegetation alone will provide permanent erosion control, whereas Table RECP-2 is for conditions where vegetation alone will not be adequately stable to provide long-term erosion protection due to flow or other conditions RECP-2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products ( CIP) EC -6 Table RECP-1 ECTC Standard Specification for Temporary Rolled Erosion Control Products (Adapted from Erosion Control Technology Council 2005) Slope Channel Minimum Expected Description Applications* Applications* Tensile 1 Strength Longevity Maximum C Factor2 5 Max Shear Gradient Stress Mulch Control Nets 5 1 (H V) _<0 10 @ 0 25 lbs/ft2 5 lbs/ft 5 1 (12 Pa) (0 073 kN/m) Netless Rolled <0 10 @ 0 5 lbs/ft2 5 lbs/ft Erosion Control 4 1 (H V) 4 1 (24 Pa) (0 073 kN/m) Blankets Up to 12 months Single -net Erosion <0 15 @ 1 5 lbs/ft2 50 lbs/ft Control Blankets & 3 1 (H V) 3 1 (72 Pa) (0 73 kN/m) Open Weave Textiles Double -net Erosion 2 1 (H V) <0 20 @ 1 75 lbs/ft2 75 lbs/ft Control Blankets 2 1 (84 Pa) (1 09 kN/m) Mulch Control Nets 5 1 (H V) <0 10 @ 0 25 lbs/ft2 f 25 lbs/ft 24 months 5 1 (12 Pa) (0 36 kN/m) Erosion Control Blankets & Open 1 5 1 (H V) <0 25 @ 2 00 lbs/ft2 100 lbs/ft 24 months Weave Textiles 1 5 1 (96 Pa) (145 kN/m) (slowly degrading) Erosion Control <0 25 @ 2 25 lbs/ft2 125 lbs/ft Blankets & Open 11 (H V) 11 (108 Pa) (1 82 kN/m) 36 months Weave Textiles * C Factor and shear stress for mulch control nettings must be obtained with netting used in conjunction with pre -applied mulch material (See Section 5 3 of Chapter 7 Construction BMPs for more information on the C Factor) 1 Minimum Average Roll Values, Machine direction using ECTC Mod ASTM D 5035 2 C Factor calculated as ratio of soil loss from RECP protected slope (tested at specified or greater gradient, H V) to ratio of soil loss from unprotected (control) plot in large-scale testing 3 Required minimum shear stress RECP (unvegetated) can sustain without physical damage or excess erosion (> 12 7 mm (0 5 in) soil loss) during a 30 -minute flow event in large-scale testing 4 The permissible shear stress levels established for each performance category are based on historical experience with products characterized by Manning's roughness coefficients in the range of 0 01 - 0 05 5 Acceptable large-scale test methods may include ASTM D 6459, or other independent testing deemed acceptable by the engineer 6 Per the engineer's discretion Recommended acceptable large-scale testing protocol may include ASTM D 6460, or other independent testing deemed acceptable by the engineer November 2010 Urban Drainage and Flood Control District RECP-3 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) Table RECP-2. ECTC Standard Specification for Permanent' Rolled Erosion Control Products (Adapted from: Erosion Control Technology Council 2005) Product Type Slope Channel Applications Applications Maximum Maximum Minimum Gradient Shear Stress4,s ^ Tensile z TRMs with a minimum thickness of 2 (288 Pa) 125 lbs/ft (1.82 0.25 inches (6.35 mm) per ASTM D 0.5:1 (H:V) 6.0 lbs/ft kN/m) 6525 and UV stability of 80% per ASTM D 4355 (500 hours 150 lbs/ft (2.19 exposure). 0.5:1 (H:V) 8.0 lbs/ft2 (384 Pa) kN/m) 0.5:1 (H:V) ( 10,0 lbs/ft2 (480 Pa) 175 lbs/ft (2.55 kN/m) 'For TRMs containing degradable components, all property values must be obtained on the non- degradable portion of the matting alone. 2 Minimum Average Roll Values, machine direction only for tensile strength determination using ASTM D 6818 (Supersedes Mod. ASTM D 5035 for RECPs) 3 Field conditions with high loading and/or high survivability requirements may warrant the use of a TRM with a tensile strength of 44 kN/m (3,000 lb/ft) or greater. 4 Required minimum shear stress TRM (fully vegetated) can sustain without physical damage or excess erosion (> 12.7 mm (0.5 in.) soil loss) during a 30 -minute flow event in large scale testing. s Acceptable large-scale testing protocols may include ASTM D 6460, or other independent testing deemed acceptable by the engineer. Design and Installation RECPs should be installed according to manufacturer's specifications and guidelines. Regardless of the type of product used, it is important to ensure no gaps or voids exist under the material and that all corners of the material are secured using stakes and trenching. Continuous contact between the product and the soil is necessary to avoid failure. Never use metal stakes to secure temporary erosion control products. Often wooden stakes are used to anchor RECPs; however, wood stakes may present installation and maintenance challenges and generally take a long time to biodegrade. Some local jurisdictions have had favorable experiences using biodegradable stakes. This BMP Fact Sheet provides design details for several commonly used ECB applications, including: ECB- I Pipe Outlet to Drainageway ECB-2 Small Ditch or Drainageway ECB-3 Outside of Drainageway RECP-4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products (RECP) EC -6 Staking patterns are also provided in the design details according to these factors ECB type ® Slope or channel type For other types of RECPs including TRMs, these design details are intended to serve as general guidelines for design and installation, however, engineers should adhere to manufacturer's installation recommendations Maintenance and Removal Inspection of erosion control blankets and other RECPs includes Check for general signs of erosion, including voids beneath the mat If voids are apparent, fill the void with suitable soil and replace the erosion control blanket, following the appropriate staking pattern ■ Check for damaged or loose stakes and secure loose portions of the blanket Erosion control blankets and other RECPs that are biodegradable typically do not need to be removed after construction If they must be removed, then an alternate soil stabilization method should be installed promptly following removal Turf reinforcement mats, although generally resistant to biodegradation, are typically left in place as a dense vegetated cover grows in through the mat matrix The turf reinforcement mat provides long-term stability and helps the established vegetation resist erosive forces November 2010 Urban Drainage and Flood Control District RECP-5 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) UNDISTURBED SOIL f7 PERIMETER ANCHOR TRENCH TYP ECB JOINT ANCHOR TOP OF TRENCH. TYP CHANNEL BANK TYPE OF ECB AS INDICATED IN PLAN VIEW INSTALL IN'ALL ALL DISTURBED AREAS OF STREAMS AND DRAINAGE CHANNELS TO DEPTI D ABOVE CHANNEL INVERT ECB SHALL GENERALLY BE ORIENTED PARALLEL TO FLOW DIRECTION (I E LONG DIMENSIONS OF BLANKET PARALLEL TO FLOWUNES) STAKING PATTERN SHALL MATCH ECB AND/OR CHANNEL TYPE ECB-1 PIPE OUTLET TO DRAINAGEWAY 6" JOINT ANCHOR TRENCH, TYP TYPE OF ECB, INDICATED IN PLAN VIEN ECB SHALL EXTEND TO THE TOP OF THE CHANNEL D PERIMETER ANCHOR TRENCH TYP COMPACTED SUBGRADE STAKING PATTERN PER MANUFACTURER SPEC OR PATTERN BASED ON ECB AND/OR CHANNEL TYPE (SEE STAKING PATTERN DETAIL) ECB-2. SMALL DITCH OR DRAINAGEWAY ANCHOR DETAILS GEOTEXTILE �� ABRIC OR MAT, TYP 3" MIN, TYP 'MIN, YP NGLE EDGE KE, TYP 7COFMPACTED BACKFILL, TYP PERIMETER ANCHOR TRENCH TWO EDGES OF TWO ADJACENT ROLLS JOINT ANCHOR TRENCH LOOP FROM MIDDLE OF ROLL INTERMEDIATE ANCHOR TRENCH FLOW OVERLAPPING JOINT --I I- 3' MIN 12" MIN WOOD STAKE DETAIL RECP-6 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products (RECP) EC 6 STAGGER OVERLAPS DIVERSION DITCH TYPICALLY AT TOP OF SLOPE OVERLAPPING JOINT STAKING PATTERN PER MANUFACTURER SPEC OR PATTERN BASED ON ECO AND/OR SLOPE TYPE (SEE STAKING PATTERN DETAIL) NPERIMETER ANCHOR TRENCH ECB-3. OUTSIDE OF DRAINAGEWAY ROLL PERIMETER WIDTH ANCHOR W TYP TRENCH OR JOINT, TYP 61110 T-� Y2 I STRAW Yz W o I o 6' o O 0 T3 FI STRAW —COCONUT O I YxW 0 O _ 4' J o o J_ O L 2' COCONUT OR EXCELSIOR STAKING PATTERNS BY ECB TYPE 6'i3' ? Y2 W 41-31 SLOPES 2 3' —�I F--- Y2 6' O W o FY 0 3 1 -2 1 1 SLOPES pop 4' j T o Yx W I�L 000 20" [- LOW FLOW CHANNEL W w 2' --o —)4W 4' o —'o '— 32 w 0 0 2 1 AND STEEPER SLOPES 4' 000 }�Y2 w 20" 0000 I_ 0 0 0 L 2 HIGH FLOW CHANNEL STAKING PATTERNS BY SLOPE OR CHANNEL TYPE November 2010 Urban Drainage and Flood Control District RECP-7 Urban Storm Drainage Criteria Manual Volume 3 EC -6 Rolled Erosion Control Products (RECP) 1 SEE PLAN VIEW FOR -LOCATION OF ECB -TYPE OF ECB (STRAW, STRAW -COCONUT, COCONUT, OR EXCELSIOR) -AREA, A, IN SQUARE YARDS OF EACH TYPE OF ECB 2 100% NATURAL AND BIODEGRADABLE MATERIALS ARE PREFERRED FOR RECPs, ALTHOUGH SOME JURISDICTIONS MAY ALLOW OTHER MATERIALS IN SOME APPLICATIONS 3 IN AREAS WHERE ECBs ARE SHOWN ON THE PLANS, THE PERMITTEE SHALL PLACE TOPSOIL AND PERFORM FINAL GRADING, SURFACE PREPARATION, AND SEEDING AND MULCHING SUBGRADE SHALL BE SMOOTH AND MOIST PRIOR TO ECB INSTALLATION AND THE ECB SHALL BE IN FULL CONTACT WITH SUBGRADE NO GAPS OR VOIDS SHALL EXIST UNDER THE BLANKET 4 PERIMETER ANCHOR TRENCH SHALL BE USED ALONG THE OUTSIDE PERIMETER OF ALL BLANKET AREAS 5 JOINT ANCHOR TRENCH SHALL BE USED TO JOIN ROLLS OF ECBs TOGETHER (LONGITUDINALLY AND TRANSVERSELY) FOR ALL ECBs EXCEPT STRAW WHICH MAY USE AN OVERLAPPING JOINT 6 INTERMEDIATE ANCHOR TRENCH SHALL BE USED AT SPACING OF ONE-HALF ROLL LENGTH FOR COCONUT AND EXCELSIOR ECBs 7 OVERLAPPING JOINT DETAIL SHALL BE USED TO JOIN ROLLS OF ECBs TOGETHER FOR ECBs ON SLOPES 8 MATERIAL SPECIFICATIONS OF ECBs SHALL CONFORM TO TABLE ECB-1 9 ANY AREAS OF SEEDING AND MULCHING DISTURBED IN THE PROCESS OF INSTALLING ECBS SHALL BE RESEEDED AND MULCHED 10 DETAILS ON DESIGN PLANS FOR MAJOR DRAINAGEWAY STABILIZATION WILL GOVERN IF DIFFERENT FROM THOSE SHOWN HERE TABLE ECB-1 ECB MATERIAL SPECIFICATIONS TYPE COCONUT STRAW EXCELSIOR RECOMMENDED CONTENT CONTENT CONTENT NETTING'* STRAW' - 100% - DOUBLE/ NATURAL STRAW- 30% MIN 70% MAX _ DOUBLE/ COCONUT NATURAL COCONUT 100% - - DOUBLE/ NATURAL EXCELSIOR DOUBLE/ - - 100% NATURAL '.1—. CVOMql v,iLr OL VDCU l.V,OIVG — JI!{GnMJ P//MU UIWIIViUL Id INQL ••ALTERNATE NETTING MAY BE ACCEPTABLE IN SOME JURISDICTIONS RECP-8 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Rolled Erosion Control Products ( ECF) EC 6 EROSION CONTROL BLANKET MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE, NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACEMENT SHOULD BE INITIATED UPON DISCOVERY OF THE FAILURE 4 ECBs SHALL BE LEFT IN PLACE TO EVENTUALLY BIODEGRADE, UNLESS REQUESTED TO BE REMOVED BY THE LOCAL JURISDICTION 5 ANY ECB PULLED OUT, TORN, OR OTHERWISE DAMAGED SHALL BE REPAIRED OR REINSTALLED ANY SUBGRADE AREAS BELOW THE GEOTEXTILE THAT HAVE ERODED TO CREATED A VOID UNDER THE BLANKET, OR THAT REMAIN DEVOID OF GRASS SHALL BE REPAIRED, RESEEDED AND MULCHED AND THE ECB REINSTALLED NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED (DETAILS ADAPTED FROM DOUGLAS COUNTY, COLORADO AND TOWN OF PARKER COLORADO, NOT AVAILABLE IN AUTOCAD) November 2010 Urban Drainage and Flood Control District RECP-9 Urban Storm Drainage Criteria Manual Volume 3 EC -4 Mulching (MU) Clean, weed -free and seed -free cereal grain straw should be applied evenly at a rate of 2 tons per acre and must be tacked or fastened by a method suitable for the condition of the site Straw mulch must be anchored (and not merely placed) on the surface This can be accomplished mechanically by crimping or with the aid of tackifiers or nets Anchoring with a crimping implement is preferred, and is the recommended method for areas flatter than 3 1 Mechanical crimpers must be capable of tucking the long mulch fibers into the soil to a depth of 3 inches without cutting them An agricultural disk, while not an ideal substitute, may work if the disk blades are dull or blunted and set vertically, however, the frame may have to be weighted to afford proper soil penetration Grass hay may be used in place of straw, however, because hay is comprised of the entire plant including seed, mulching with hay may seed the site with non-native grass species which might in turn out -compete the native seed Alternatively, native species of grass hay may be purchased, but can be difficult to find and are more expensive than straw Purchasing and utilizing a certified weed -free straw is an easier and less costly mulching method When using grass hay, follow the same guidelines as for straw (provided above) On small areas sheltered from the wind and heavy runoff, spraying a tackifier on the mulch is satisfactory for holding it in place For steep slopes and special situations where greater control is needed, erosion control blankets anchored with stakes should be used instead of mulch Hydraulic mulching consists of wood cellulose fibers mixed with water and a tackifying agent and should be applied at a rate of no less than 1,500 pounds per acre (1,425 lbs of fibers mixed with at least 75 lbs of tackifier) with a hydraulic mulcher For steeper slopes, up to 2000 pounds per acre may be required for effective hydroseeding Hydromulch typically requires up to 24 hours to dry, therefore, it should not be applied immediately prior to inclement weather Application to roads, waterways and existing vegetation should be avoided ■ Erosion control mats, blankets, or nets are recommended to help stabilize steep slopes (generally 3 1 and steeper) and waterways Depending on the product, these maybe used alone or in conjunction with grass or straw mulch Normally, use of these products will be restricted to relatively small areas Biodegradable mats made of straw and jute, straw -coconut, coconut fiber, or excelsior can be used instead of mulch (See the ECM/TRM BMP for more information) Some tackifiers or binders may be used to anchor mulch Check with the local jurisdiction for allowed tackifiers Manufacturer's recommendations should be followed at all times (See the Soil Binder BMP for more information on general types of tackifiers ) ■ Rock can also be used as mulch It provides protection of exposed soils to wind and water erosion and allows infiltration of precipitation An aggregate base course can be spread on disturbed areas for temporary or permanent stabilization The rock mulch layer should be thick enough to provide full coverage of exposed soil on the area it is applied Maintenance and Removal After mulching, the bare ground surface should not be more than 10 percent exposed Reapply mulch, as needed, to cover bare areas MU -2 Urban Drainage and Flood Control District June 2012 Urban Storm Drainage Criteria Manual Volume 3 Compost Blanket and Filter Berm (CB) EC -5 Description A compost blanket is a layer of compost uniformly applied to the soil in disturbed areas to control erosion, facilitate revegetation, and retain sediment resulting from sheet -flow runoff. A compost filter berm is a dike of compost or a compost product that is placed perpendicular to runoff to control erosion in disturbed areas and retain sediment. Compost berms can be placed at regular intervals to help reduce the formation of rill and gully erosion when a compost blanket is stabilizing a slope. Appropriate Uses Compost blankets can be used as an alternative to erosion control blankets and mulching to help stabilize disturbed areas where sheet flow conditions are present. Compost blankets should not be used in areas of concentrated flows. Compost provides an excellent source of nutrients for plant growth, and should be considered for use in areas that will be permanently vegetated. Design and Installation See Detail CB- 1 for design details and notes. Photograph CB -1. Application of a compost blanket to a disturbed area. Photo courtesy of Caltrans. Do not place compost in areas where it can easily be transported into drainage pathways or waterways. When using a compost blanket on a slope, berms should be installed periodically to reduce the potential for concentrated flow and ruling. Seeding should be completed before an area is composted or incorporated into the compost. Compost quality is an important consideration when selecting compost blankets or berms. Representative compost quality factors include pH, salinity, moisture content, organic matter content, stability (maturity), and physical contaminants. The compost should meet all local, state, and federal quality requirements. Biosolids compost must meet the Standards for Class A biosolids outlined in 40 CFR Part 503. The U.S. Composting Council (USCC) certifies compost products under its Seal of Testing Assurance (STA) Program. Compost producers whose products have been certified through the STA Program provide customers with a standard product label that allows comparison between compost products. Only STA certified, Class I compost should be used. Compost Blankets and Berms Functions Erosion Control Yes Sediment Control Moderate Site/Material Management No November 2010 Urban Drainage and Flood Control District CB -I Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seedin Description Temporary seeding can be used to stabilize disturbed areas that will be inactive for an extended period. Permanent seeding should be used to stabilize areas at final grade that will not be otherwise stabilized. Effective seeding includes preparation of a seedbed, selection of an appropriate seed mixture, proper planting techniques, and protection of the seeded area with mulch, geotextiles, or other appropriate measures. Appropriate Uses When the soil surface is disturbed and Photograph TS/PS -1. Equipment used to drill seed. Photo courtesy of will remain inactive for an extended Douglas County. period (typically 30 days or longer), proactive stabilization measures should be implemented. If the inactive period is short-lived (on the order of two weeks), techniques such as surface roughening may be appropriate. For longer periods of inactivity, temporary seeding and mulching can provide effective erosion control. Permanent seeding should be used on finished areas that have not been otherwise stabilized. S/PS) EC -2 Typically, local governments have their own seed mixes and timelines for seeding. Check jurisdictional requirements for seeding and temporary stabilization. Design and Installation Effective seeding requires proper seedbed preparation, selection of an appropriate seed mixture, use of appropriate seeding equipment to ensure proper coverage and density, and protection with mulch or fabric until plants are established. The USDCM Volume 2 Revegetation Chapter contains detailed seed mix, soil preparations, and seeding and mulching recommendations that may be referenced to supplement this Fact Sheet. Drill seeding is the preferred seeding method. Hydroseeding is not recommended except in areas where steep slopes prevent use of drill seeding equipment, and even in these instances it is preferable to hand seed and mulch. Some jurisdictions do not allow hydroseeding or hydromulching. Seedbed Preparation Prior to seeding, ensure that areas to be revegetated have soil conditions capable of supporting vegetation. Overlot grading can result in loss of topsoil, resulting in poor quality subsoils at the ground surface that have low nutrient value, little organic matter content, few soil microorganisms, rooting restrictions, and conditions less conducive to infiltration of precipitation. As a result, it is typically necessary to provide stockpiled topsoil, compost, or other Temporary and Permanent Seeding Functions Erosion Control Yes Sediment Control No Site/Material Management No June 2012 Urban Drainage and Flood Control District TS/PS-1 Urban Storm Drainage Criteria Manual Volume 3 EC -2 Temporary and Permanent Seeding (TS/PS) soil amendments and rototill them into the soil to a depth of 6 inches or more Topsoil should be salvaged during grading operations for use and spread on areas to be revegetated later Topsoil should be viewed as an important resource to be utilized for vegetation establishment, due to its water -holding capacity, structure, texture, organic matter content, biological activity, and nutrient content The rooting depth of most native grasses in the semi -arid Denver metropolitan area is 6 to 18 inches At a minimum, the upper 6 inches of topsoil should be stripped, stockpiled, and ultimately respread across areas that will be revegetated Where topsoil is not available, subsoils should be amended to provide an appropriate plant -growth medium Organic matter, such as well digested compost, can be added to improve soil characteristics conducive to plant growth Other treatments can be used to adjust soil pH conditions when needed Soil testing, which is typically inexpensive, should be completed to determine and optimize the types and amounts of amendments that are required If the disturbed ground surface is compacted, rip or rototill the surface prior to placing topsoil If adding compost to the existing soil surface, rototilling is necessary Surface roughening will assist in placement of a stable topsoil layer on steeper slopes, and allow infiltration and root penetration to greater depth Prior to seeding, the soil surface should be rough and the seedbed should be firm, but neither too loose nor compacted The upper layer of soil should be in a condition suitable for seeding at the proper depth and conducive to plant growth Seed -to -soil contact is the key to good germination Seed Mix for Temporary Vegetation To provide temporary vegetative cover on disturbed areas which will not be paved, built upon, or fully landscaped or worked for an extended period (typically 30 days or more), plant an annual grass appropriate for the time of planting and mulch the planted areas Annual grasses suitable for the Denver metropolitan area are listed in Table TS/PS-1 These are to' be considered only as general recommendations when specific design guidance for a particular site is not available Local governments typically specify seed mixes appropriate for their jurisdiction Seed Mix for Permanent Revegetation To provide vegetative cover on disturbed areas that have reached final grade, a perennial grass mix should be established Permanent seeding should be performed promptly (typically within 14 days) after reaching final grade Each site will have different characteristics and a landscape professional or the local jurisdiction should be contacted to determine the most suitable seed mix for a specific site In lieu of a specific recommendation, one of the perennial grass mixes appropriate for site conditions and growth season listed in Table TS/PS-2 can be used The pure live seed (PLS) rates of application recommended in these tables are considered to be absolute minimum rates for seed applied using proper drill -seeding equipment If desired for wildlife habitat or landscape diversity, shrubs such as rubber rabbitbrush (Chrysothamnus nauseosus), fourwing saltbush (Atriplex canescens) and skunkbrush sumac (Rhus trilobata) could be added to the upland seedmixes at 0 25, 0 5 and 1 pound PLS/acre, respectively In riparian zones, planting root stock of such species as American plum (Prunus americana), woods rose (Rosa woodsu), plains cottonwood (Populus sargentu), and willow (Populus spp) maybe considered On non-topsoiled upland sites, a legume such as Ladak alfalfa at 1 pound PLS/acre can be included as a source of nitrogen for perennial grasses TS/PS-2 Urban Drainage and Flood Control District June 2012 Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seeding (TS/PS) EC 2 Seeding dates for the highest success probability of perennial species along the Front Range are generally in the spring from April through early May and in the fall after the first of September until the ground freezes If the area is irrigated, seeding may occur in summer months, as well See Table TS/PS-3 for appropriate seeding dates Table TS/PS-1 Minimum Drill Seeding Rates for Various Temporary Annual Grasses Pounds of Planting Species' Growth Pure Live Seed Depth (Common name) Seasonb (PLS)/acre (inches) 1 Oats Cool 35 - 50 1 - 2 2 Spring wheat Cool 25 - 35 1 - 2 3 Spring barley Cool 25 - 35 1 - 2 4 Annual ryegrass Cool 10 - 15 '/2 5 Millet Warm 3-15 Y2-3/4 6 Sudangrass Warm 5-10 '/2 - 3/4 7 Sorghum Warm 5-10 '/2 -3/4 8 Winter wheat Cool 20-35 1 - 2 9 Winter barley Cool 20-35 1 - 2 10 Winter rye Cool 20-35 1 - 2 11 Triticale Cool 25-40 1 - 2 a Successful seeding of annual grass resulting in adequate plant growth will usually produce enough dead -plant residue to provide protection from wind and water erosion for an additional year This assumes that the cover is not disturbed or mowed closer than 8 inches Hydraulic seeding may be substituted for drilling only where slopes are steeper than 3 1 or where access limitations exist When hydraulic seeding is used, hydraulic mulching should be applied as a separate operation, when practical, to prevent the seeds from being encapsulated in the mulch b See Table TS/PS-3 for seeding dates Irrigation, if consistently applied, may extend the use of cool season species during the summer months ° Seeding rates should be doubled if seed is broadcast, or increased by 50 percent if done using a Bullion Drill or by hydraulic seeding June 2012 Urban Drainage and Flood Control District TS/PS-3 Urban Storm Drainage Criteria Manual Volume 3 EC -2 Temporary and Permanent Seeding (TS/PS) Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses Common a Name Botanical Name I Growth Seasonb I Growth Form Seeds/ Pound I Pounds of PLS/acre Alakali Soil Seed Mix Alkali sacaton Sporobolus airoides Cool Bunch 1,750,000 0 25 Basin wildrye Elymus cinereus Cool Bunch 165,000 2 5 Sodar streambank wheatgrass Agropyron riparium 'Sodar' Cool Sod 170,000 2 5 Jose tall wheatgrass Agropyron elongatum 'Jose' Cool Bunch 79,000 7 0 Arriba western wheatgrass Agropyron smithtu 'Arriba' Cool Sod 110,000 5 5 Total 1775 Fertile Loamy Soil Seed Mix Ephnam crested wheatgrass Agropyron cristatum 'Ephriam' Cool Sod 175,000 2 0 Dural hard fescue Festuca ovina 'duriuscula' Cool Bunch 565,000 1 0 Lincoln smooth brome Bromus inermis leyss 'Lincoln' Cool Sod 130,000 3 0 Sodar streambank wheatgrass Agropyron riparium 'Sodar' Cool Sod 170,000 2 5 Aruba western wheatgrass Agropyron smithii 'Arriba' Cool Sod 110,000 7 0 Total 155 High Water Table Soil Seed Mix Meadow foxtail Alopecurus pratensis Cool Sod 900,000 0 5 Redtop Agrostis alba Warm Open sod 5,000,000 0 25 Reed canarygrass Phalaris arundinacea Cool Sod 68,000 0 5 Lincoln smooth brome Bromus inermis leyss 'Lincoln' Cool Sod 130,000 3 0 Pathfinder switchgrass Panicum virgatum 'Pathfinder' Warm Sod 389,000 1 0 Alkar tall wheatgrass Agropyron elongatum 'Alkar' Cool Bunch 79,000 5 5 Total 10 75 Transition Turf Seed Mix` Ruebens Canadian bluegrass Poa compressa 'Ruebens' Cool Sod 2,500,000 0 5 Dural hard fescue Festuca ovina duriuscula' Cool Bunch 565,000 1 0 Citation perennial ryegrass Loliumperenne 'Citation' Cool Sod 247,000 3 0 Lincoln smooth brome Bromus inermis leyss 'Lincoln' Cool Sod 130,000 3 0 Total 7 5 TS/PS-4 Urban Drainage and Flood Control District June 2012 Urban Storm Drainage Criteria Manual Volume 3 Temporary and Permanent Seeding (TS/PS) EC -2 Table TS/PS-2. Minimum Drill Seeding Rates for Perennial Grasses (cont) Common Botanical I Growth I Growth I Seeds/ Pounds of Name Name Seasonb Form Pound PLS/acre Sandy Soil Seed Mix Blue grama Bouteloua gracilrs W Sod -forming bunchgrass 825,000 0 5 Camper little bluestem Schizachyrium scoparium 'Camper' WarmBunch 240,000 1 0 Praine sandreed Calamovilfa longifolia Warm Open sod 274,000 1 0 Sand dropseed Sporobolus cryptandrus Cool Bunch 5,298,000 0 25 Vaughn sideoats grama Bouteloua curtipendula 'Vaughn' WarmSod 191,000 20 Amba western wheatgrass Agropyron smtthtt 'Arriba' Cool Sod 110,000 5 5 Total 10 25 Heavy Clay, Rocky Foothill Seed Mix Ephnam crested wheatgrassd Agropyron cristatum Cool Sod 175,000 1 5 'Ephriam' Oahe Intermediate wheatgrass Agropyron intermedium Cool Sod 115,000 55 'Oahe' Vaughn sideoats gramae Bouteloua curtipendula WarmSod 191,000 20 Vaughn' Lincoln smooth brome Bromus inermis leyss 'Lincoln' Cool Sod 130,000 3 0 Amba western wheatgrass Agropyron smtthtt 'Arriba' Cool Sod 110,000 5 5 Total 175 a All of the above seeding mixes and rates are based on dull seeding followed by cnmped straw mulch These rates should be doubled if seed is broadcast and should be increased by 50 percent if the seeding is done using a Brillion Drill or is applied through hydraulic seeding Hydraulic seeding may be substituted for dulling only where slopes are steeper than 3 1 If hydraulic seeding is used, hydraulic mulching should be done as a separate operation b See Table TS/PS-3 for seeding dates ` If site is to be imgated, the transition turf seed rates should be doubled d Crested wheatgrass should not be used on slopes steeper than 6H to 1V e Can substitute 0 5 lbs PLS of blue grama for the 2 0 lbs PLS of Vaughn sideoats grama June 2012 Urban Drainage and Flood Control District TS/PS-5 Urban Storm Drainage Criteria Manual Volume 3 EC -2 Temporary and Permanent Seeding (TS/PS) Table TS/PS-3. Seeding Dates for Annual and Perennial Grasses Annual Grasses (Numbers in table reference species in Table TS/PS-1) Perennial Grasses Seeding Dates Warm Cool Warm Cool January 1 —March 15 ✓ ✓ March 16 —April 30 4 1,2,3 ✓ ✓ May l —May 15 4 ✓ May 16 —June 30 4,5,6,7 - July 1 —July 15 5,6,7 July 16 —August 31 September 1 —September 30 _ 8,9,10,11 October 1 —December 31 ✓ ✓ Mulch Cover seeded areas with mulch or an appropriate rolled erosion control product to promote establishment of vegetation Anchor mulch by crimping, netting or use of a non-toxic tackifier See the Mulching BMP Fact Sheet for additional guidance Maintenance and Removal Monitor and observe seeded areas to identify areas of poor growth or areas that fail to germinate Reseed and mulch these areas, as needed An area that has been permanently seeded should have a good stand of vegetation within one growing season if irrigated and within three growing seasons without irrigation in Colorado Reseed portions of the site that fail to germinate or remain bare after the first growing season Seeded areas may require irrigation, particularly during extended dry periods Targeted weed control may also be necessary Protect seeded areas from construction equipment and vehicle access TS/PS-6 Urban Drainage and Flood Control District June 2012 Urban Storm Drainage Criteria Manual Volume 3 Surface Roughening (SR Description Surface roughening is an erosion control practice that involves tracking, scarifying, imprinting, or tilling a disturbed area to provide temporary stabilization of disturbed areas. Surface roughening creates variations in the soil surface that help to minimize wind and water erosion. Depending on the technique used, surface roughening may also help establish conditions favorable to establishment of vegetation. Appropriate Uses EC -1 Surface roughening can be used to Photograph SR -t. Surface roughening via imprinting for temporary provide temporary stabilization of stabilization. disturbed areas, such as when revegetation cannot be immediately established due to seasonal planting limitations. Surface roughening is not a stand-alone BMP, and should be used in conjunction with other erosion and sediment controls. Surface roughening is often implemented in conjunction with grading and is typically performed using heavy construction equipment to track the surface. Be aware that tracking with heavy equipment will also compact soils, which is not desirable in areas that will be revegetated. Scarifying, tilling, or ripping are better surface roughening techniques in locations where revegetation is planned. Roughening is not effective in very sandy soils and cannot be effectively performed in rocky soil. Design and Installation Typical design details for surfacing roughening on steep and mild slopes are provided in Details SR -1 and SR -2, respectively. Surface roughening should be performed either after final grading or to temporarily stabilize an area during active construction that may be inactive for a short time period. Surface roughening should create depressions 2 to 6 inches deep and approximately 6 inches apart. The surface of exposed soil can be roughened by a number of techniques and equipment. Horizontal grooves (running parallel to the contours of the land) can be made using tracks from equipment treads, stair -step grading, ripping, or tilling. Fill slopes can be constructed with a roughened surface. Cut slopes that have been smooth graded can be roughened as a subsequent operation. Roughening should follow along the contours of the slope. The tracks left by truck mounted equipment working perpendicular to the contour can leave acceptable horizontal depressions; however, the equipment will also compact the soil. Surface Roughening Functions Erosion Control Yes Sediment Control No Site/Material Management No November 2010 Urban Drainage and Flood Control District SR -1 Urban Storm Drainage Criteria Manual Volume 3 EC -1 Surface Roughening (SR) Maintenance and Removal Care should be taken not to drive vehicles or equipment over areas that have been surface roughened Tire tracks will smooth the roughened surface and may cause runoff to collect into rills and gullies Because surface roughening is only a temporary control, additional treatments may be necessary to maintain the soil surface in a roughened condition Areas should be inspected for signs of erosion Surface roughening is a temporary measure, and will not provide long-term erosion control SR -2 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 Surface Roughening (SR) EC4 0 2" TO 4" DEEP 6" MAX l � TRACKING OR IMPRINTING FURROWS 2" TO 4" DEEP WITH 6" MAXIMUM SPACING PARALLEL TO CONTOURS SR -1 SURFACE ROUGHENING FOR STEEP SLOPES (3 1 OR STEEPER) SCARIFYING OR TILLING ROUGHENED ROWS SHALL BE 4" TO 6' L 4" TO 6" DEEP WITH 6" MAXIMUM SPACING PARALLEL DEEP TO CONTOURS SR -2. SURFACE ROUGHENING FOR LOW SLOPES (LESS THAN 3 1) SR November 2010 Urban Drainage and Flood Control District SR -3 Urban Storm Drainage Criteria Manual Volume 3 EC -1 Surface Roughening (SR) CE ROUGHENING INSTALLATION NO 1 SEE PLAN VIEW FOR -LOCATION(S) OF SURFACE ROUGHENING 2 SURFACE ROUGHENING SHALL BE PROVIDED PROMPTLY AFTER COMPLETION OF FINISHED GRADING (FOR AREAS NOT RECEIVING TOPSOIL) OR PRIOR TO TOPSOIL PLACEMENT OR ANY FORECASTED RAIN EVENT 3 AREAS WHERE BUILDING FOUNDATIONS, PAVEMENT, OR SOD WILL BE PLACED WITHOUT DELAY IN THE CONSTRUCTION SEQUENCE, SURFACE ROUGHENING IS NOT REQUIRED 4 DISTURBED SURFACES SHALL BE ROUGHENED USING RIPPING OR TILLING EQUIPMENT ON THE CONTOUR OR TRACKING UP AND DOWN A SLOPE USING EQUIPMENT TREADS 5 A FARMING DISK SHALL NOT BE USED FOR SURFACE ROUGHENING SURFACE ROUGHENING MAINTENANCE NOTES 1 INSPECT BMPs EACH WORKDAY, AND MAINTAIN THEM IN EFFECTIVE OPERATING CONDITION MAINTENANCE OF BMPs SHOULD BE PROACTIVE NOT REACTIVE INSPECT BMPs AS SOON AS POSSIBLE (AND ALWAYS WITHIN 24 HOURS) FOLLOWING A STORM THAT CAUSES SURFACE EROSION, AND PERFORM NECESSARY MAINTENANCE 2 FREQUENT OBSERVATIONS AND MAINTENANCE ARE NECESSARY TO MAINTAIN BMPs IN EFFECTIVE OPERATING CONDITION INSPECTIONS AND CORRECTIVE MEASURES SHOULD BE DOCUMENTED THOROUGHLY 3 WHERE BMPs HAVE FAILED, REPAIR OR REPLACE UPON DISCOVERY OF THE FAILURE 4 VEHICLES AND EQUIPMENT SHALL NOT BE DRIVEN OVER AREAS THAT HAVE BEEN SURFACE ROUGHENED 5 IN NON -TURF GRASS FINISHED AREAS, SEEDING AND MULCHING SHALL TAKE PLACE DIRECTLY OVER SURFACE ROUGHENED AREAS WITHOUT FIRST SMOOTHING OUT THE SURFACE 6 IN AREAS NOT SEEDED AND MULCHED AFTER SURFACE ROUGHENING, SURFACES SHALL BE RE -ROUGHENED AS NECESSARY TO MAINTAIN GROOVE DEPTH AND SMOOTH OVER RILL EROSION (DETAILS AOAPTEO FROM TOWN OF PARKER COLORADO NOT AVAILABLE IN AUTOCAD) NOTE MANY JURISDICTIONS HAVE BMP DETAILS THAT VARY FROM UDFCD STANDARD DETAILS CONSULT WITH LOCAL JURISDICTIONS AS TO WHICH DETAIL SHOULD BE USED WHEN DIFFERENCES ARE NOTED SR -4 Urban Drainage and Flood Control District November 2010 Urban Storm Drainage Criteria Manual Volume 3 L4 Environmental 13 Dos Rios Greeley, CO 80634 Weld County December 8th, 2021 RE: Public Works Stormwater Improvement Project Dear Weld County Staff, Thank you for the opportunity to submit a proposal for Public Works Stormwater Improvement Project. We are a specialty company with a successful history solving complex environmental construction related challenges. L4 has excellent relationships with local engineers, government agencies, property owners and our clients. We value honest and realistic communication, efficient use of resources, and producing high value per dollar for our clients. Thank you for your consideration. Sincerely, The L4 Environmental Team Matt Lamar, President mlamar@I4construction.com 304 Main St. Unit C, Lyons CO 80540 www.L4Environmental.com ADDENDUM 5- REVISED 11/30/2021 Only populate the Unit Cost column in yellow. All other cells are pre -populated with the appropriate formulas. Item Descr 1C10nMPPk1k=ta Unit U 'nit Cost Project Total Per Item Pond 1 Pond 2 Pond 3 Pond 4 Pond 5 Pond 6 Pond T Swab Description of Change from Previous Version O Total Cost Qty j Total Cost Qty Total Cost Qty Total Cost Qtv Total Cost Qty Total Cost Oty jTotalCost Qty Total Cost Construction Clearir & Grubbing - AC $4,100.00 2.3 $9.553.00 0.2 $820.00 0.9 $3567.00 0.5 $2050.00 0.2 $984.00 0.1 $287.00 0.5 $1,845.00 To oil Stockpile - CV $12.00 1535 $18,420.00 120 $1440.00 700 $8400.00 60 $960.00 210 $2520.00 55 $660.00 370 $4440.00 Topsoil Placement CY $18.00 1535 $27630.00 120 $2160.00 700 $12,600.00 80 $1440.00 210 $3780.00 55 $990.00 370 $6660.00 Unclassified Excavation - CV $20.00 5945 $118900.00 110 $2,200.00 1945 $38900.00 400 58 000.00 2435 $48700.00 605 512100.00 200 $4000.00 250 $5,000.00 Embankment Material IR-value 20) - CY $21.00 2345 $49,245.00 150 $3150.00 1425 $29925.00 120 52520.00 340 57140.00 80 $1,680.00 80 $1680.00 150 $3150.00 Export Fill - CV $14.00 2800 $39200.00 10 $140.00 110 $1,540.00 1685 $23,590.00 585 $8.190.00 170 $2,380.00 240 $3,360.00 Impart Fill (R -value 40) - CV $30.00 1350 $40,500.00 1350 $40,500.00 Remove & Replace Rpiap - CV $40.00 20 $800.00 20 $800.00 Ri ra 9" CV $130.00 174 $22,620.00 34 $4,420.00 132 $17,160.00 4 $520.00 2 $260.00 2 $260.00 Riprap 9" (Grouted) CY $1000.00 33 $33,000.00 10 $10,000.00 6 36,000.00 17 $17000.00 Riprap 17 - CY $100.00 109 510900.00 20 $2000.00 77 $7700.00 12 $1,200.00 Saw As halt Mat - LF $3.00 3098 59,294,00 $870.00 433 $1299.00 725 $2175.00 760 $2340.00 870 $2,610.00 Removal of Asphalt Mat SY $9.00 3270 $29,430.00 $5580.00 215 $1,935.00 280 $2,520.00 1390 $12,510.00 765 $6,685.00 HMA Gr SX 100 PG 64-22 - TO $135.00 1230 $166,050.00 [290 $24300.00 65 $8 775.00 600 $81 000.00 160 $21,600.00 225 $30 375.00 ftQare�ate Base Course Class 6 Rvalue 69 YES TO $35.00 1220 $42 700.00 $6 125.00 60 $2100.00 615 $21525.00 155 $5,425.00 215 $7525.00 Concrete Pan 4' - LF $55.00 1410 $77 550.00 $19,800.00 780 $42,900.00 90 $4950.00 110 $6,050.00 70 $3850.00 Concrete Pan (6') - LF $65.00 410 $26,650.00 250 $16250.00 160 $10,400.00 Concrete Pan 10 - LF $90.00 669 $60,210.00 535 $48150.00 134 512060.00 Quantities were adjusted. Concrete Pavement 7" SY $80.00 1359 $108720.00 304 $24,320.00 224 $17920.00 711 556 880.00 120 $9600.00 Quantities were adjusted. Concrete Cutoff Wall S iltwa - LF $50.00 368 318,400.00 144 $7,200.00 224 $11,200.00 Line item was added. Curb and Gutter (Section I -B) - LF $30.00 480 $14400.00 220 $6600.00 260 $7800.00 Concrete Retaining Wall (3' Max Height) - LF $95.00 950 $90,250.00 950 $90250.00 Quantities were adiusted. PVC (SDR51) 6" YES LF $100.00 16 $1600.00 16 $1,600.00 PVC C900 17 YES LF $105.00 455 $47775.00 180 $18900.00 40 $4200.00 200 $21 000.00 35 $3675.00 RCP (Stren�h Class 111 (15") YES LF $115.00 150 $17,250.00 150 $17,250.00 RCP Stre h Class 111 16" YES LF $125.00 165 $20625.00 125 $15625.00 40 $5,000.00 Concrete FES 15' w/ Toe Wail YES EA $2400.00 1 $2,400.00 1 $2,400.00 Concrete FES 18" YES EA $1,800.00 1 51,800.00 1 $1,800.00 Concrete FES 18 vd Toe Wall YES EA $2600.00 1 $2600.00 1 $2600.00 DIP (315 STRC) 18" YES LF $190.00 190 $36,100.00 190 536 100.00 Small Pipe Headwall YES EA $2,000.00 5 $10000.00 2 $4,000.00 1 $2,000.00 1 $2,000.00 1 $2,000.00 Small Pipe Headwall (Double) YES EA $3,100.00 1 $3100.00 1 $3100.00 Outlet Structure YES EA $4100.00 4 $16400.00 1 $4,100.00 1 $4,100.00 1 $4,100.00 1 $4,100.00 Outlet Structure vd He ate YES EA $4500.00 1 $4,500.00 1 $4500.00 Type C Inlet 5' (Grate Closed Mesh) YES EA $3500.00 3 $10,500.00 1 $3,500.00 2 $7,000.00 Type D Inlet 5' (Grate Closed Mesh) YES EA $5900.00 1 $5,900.00 1 $5,900.00 Si le Combo Inlet YES EA $3900.00 1 $3900.00 1 $3900.00 Manhole 4' 5'Depth) YES EA $3600.00 3 $10800.00 1 $3600.00 2 $7200.00 Sand Oil Separator YES EA $7,900.00 1 $7900.00 1 $7900.00 Pipe Removal - LF $25.00 50 $1250.00 50 $1250.00 Remove & Replace Fence (Chain Link Only) - LF $13.00 300 $3900.00 300 $3,900.00 Remove & Re ace Gate Post - EA $400.00 1 $400.00 1 $400.00 Remove & Replace Light Pole - EA $600.00 1 $600.00 1 $600. DO Electric Line Relocation - EA $4100.00 2 $8,200.00 1 $410000 1 $4,100.00 Irr anon Une Relocation - LF $7.00 435 $3045.00 285 $1995.00 150 $1050.00 Remove Electric Utility EA $3,900.00 1 53900.00 1 $3900.00 Tree Removal - EA $500.00 1 $500.00 1 $500.00 Care Drill & Connect to Existing Manhole - EA $2500.00 1 $2500.00 1 $2,500.00 Bollard - EA $700.00 15 $10500.00 15 $10500.00 Mobilization LS 5150,000.00 - $150,000.00 Survey (Construction) LS $12,000.00 - $12000.00 Survey (MS4 As -Built) - EA $2,300.00 7 $16,100.00 1 I $2,300.00 1 I $2300.00 1 I $2300.00 1 I $2,300.00 1 I $2,300.00 1 I $2,300.00 I $2,300.00 Construction Subtotal Each Pond) $1430467.00 $146 825.00 $282,856.00 $217100.00 $166949.00 $236,170.00 $174 812.00 $43,755.00 Force Account - Minor Contract Revision $200000.00 Erosion Control Seeding - AC $1400.00 1.88 $2,632.00 0.15 $210.00 D.87 $1218.00 0.10 $140.00 0.24 $336.00 0.07 $98.00 0.45 $630.D0 Biotic Earth - AC $4100.00 1.88 $7,708.00 0.15 $615.00 0.87 $3567.00 0.10 $410.00 0.24 $984.00 0.07 $287.00 0.45 $1,845.00 Hydraulic Mulch - AC $3000.00 1.17 $3,510.00 0.05 $150.00 0.47 $1410.00 0.01 $30.00 D,13 5390.00 0.06 5180.00 0.45 $1350.00 ADDENDUM 5- REVISED 11/30/2021 • Only populate the Unit Cost column in yellow. All other cells are pre -populated with the appropriate formulas. Mu one Cotnplala in Place Unit Cost Project Total Per Item) Pond 1 Pond 2 Pond 3 Pond 4 Pond 5 Pond 8 Pond 7 Sala Description of Change from Previous Version Qty Total Cost O Tow Coal Qty Total Cost O Total Cost O Total Cost Oty Total Coat Qty Total Cost OW Total Cost Soil Retention Blanket Straw/Coconut - SV 55.00 3068 $15340.00 380 $1,900.00 1655 $8.275.00 408 $2.040.00 385 $1925.00 240 $1.200.00 Mirafi FW300Geotextile - SY $6.00 573 $3438.00 80 $480.00 275 $1,650.00 22 $132.00 150 $900.00 23 5138.00 23 $138.00 AggregateB - LF $8.00 290 52320.00 50 $400.00 10 $80.00 110 $880.00 10 $80.00 110 $880-00 Erosion Control Log - LF $4.00 1820 $7280.00 170 $680.00 530 $2,120.00 270 $1,080.00 80 $320.00 270 $1,080.00 500 $2000.00 OranQe Crush Eco Bag - EA $95.00 15 $1,425.00 3 $285.00 12 $1,140.00 Concrete Washout Pre -Fab - EA $750.00 7 $5,250.00 1 $750.00 1 $750.00 1 $750.00 1 $750.00 1 $750.00 1 $750.00 1 $750.00 Dewaterin - LS $25.000.00 2 $50,000.00 1 $25000.00 1 $25,000.00 Erosion Control Manaciement Days - EA $250.00 91 $22,750.00 13 $3250.00 13 $3250.00 13 $3.250.00 13 $3,250.00 13 33 250.00 13 $3,250.00 13 $3,250.00 Vehicle Tracking Control (Pre -Fab) - EA $10,810.00 2 $20000.00 1 $10000.00 1 $10000.00 Erosion Control Subtotal (Each Pond) $141,553.00 $8720.00 $32,320.00 *33.712.00 $8.935.00 $14000.00 $34,003.00 $9,963.00 Force Account - Erosion Control $50,000.00 Force Account - Coordinate with Fuel Site Pr ect Maracj.rlConfractor $9,000.00 Force Account - Coordinate with PW Operations Manager for Snow Removal Operations $21,000.00 Estimated Project Total Construction + Erosion Control + Force Account Items) (All Ponds) $1,852120.00 L4 Construction LLC dba L4 Environmental Total Bid: One Million Eight Hundred and Fifty Two Thousand, One Hundred and Twenty Dollars PROPOSAL BOND The bid security attached is to become the property of the County in the event the contract and bond are not executed within the time above set forth, as liquidated damages for the delay and additional expense to the County caused thereby. Respectively submitted, By: Matt Lamar President L4 Construction DBA L4 Environmental (SEAL - If bid is by a corporation) Title: President Address; 13 Dos Rios Greeley, CO 80634 • SEAL J ,� 2014• , .NN...#•%I ''#,9OLORIfr 171. Bortd# BND1008797-00 PROPOSAL BOND PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B21 00076) KNOW ALL MEN BY THESE PRESENTS, that we, L4 Construction. LLC dba L4 Environmental as Principal, hereinafter called the Principal, a corporation [corporation, partnership, or individual] duly authorized by law to do business in the State of Colorado, and Fair American Insurance and Reinsurance Company [Surety Company Name], a corporation duly authorized to do surety business under the laws of the State of Colorado as Surety, hereinafter called the Surety, are hereby held and firmly bound unto Weld County, Colorado as Obligee in the penal sum of Five Percent of Amount Bid Not to Exceed Ninety Five Thousand Dollars ($ ss,0oa.oa ), lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, our heirs, executors, administrators, successors and assigns, jointly and severally, firmly to these presents. WHEREAS, the Principal has submitted a Proposal dated Decembers , 2021 for the Public Works stomnwater Improvements Project, and if selected as the Contractor on this Project, the Principal and Surety are firmly bound and jointly and severally liable to the Owner in the penal sum described above. WHEREAS, the Owner has required as a condition for receiving said Proposal that the principal deposit with the Owner either a certified check equivalent to not less than five percent (5%) of the amount of said Proposal or in lieu thereof furnish a Proposal Bond for said amount conditioned such that in the event of failure to execute the proposed Contract for such construction if the Contract is to be awarded to him, that said sum be paid immediately to the Owner as liquidated damages and not as a penalty for the principal's failure to perform. The above obligation is void if the Principal enters into the Contract within sixty (60) days of selection of the Principal, negotiates any final terms and conditions in good faith, and has furnished all required documents for issuance of the Notice to Proceed, unless time is extended by Weld County. IN WITNESS WHEREOF, the above parties have executed this instrument under their several seals this 8th day of December , 2021 the name and corporate seal of each corporate party being hereto affixed and these presents duly signed by its undersi ned representative pursuant to authority of its gov ruing board. Principal: L4 Construction, LLC db L4 Envi mental Witness: Signature: Printed Name: f`►'a i� r ! Title: _____ 9 h ATTEST: By: Surety: Fair American Insurance and Reinsurance Company Witness. Printed Name: Laurie A. Krolws Title: Stefan E. Tauger, Attomey-in-Fact ATTEST: By: 18IPage FAIR AMERICAN INSURANCE AND REINSURANCE COMPANY One Liberty Plaza, 165 Broadway, New York, NY 10006 POWER OF ATTORNEY Know all men by these Presents, that Fair American insurance and Reinsurance Company ("Company"), a New York corporation, had made, constituted and appointed, and by these presents does make, constitute and appoint, Andrew C. Heaner of Atlanta, Georgia; Stefan E. Tauger of Parker, Colorado; Arthur S. Johnson of Atlanta, Georgia; James E. Feldner of West Lake, Ohio; Jeffery L. Booth of Blacklick, Ohio; Melanie J. Stokes of Atlanta, Georgia; David R. Brett of Columbia, South Carolina; Scott E. Stoltzner of Birmingham, Alabama; Jason S. Centrella of Jacksonville, Florida; James A. Mallis of Charlotte, NC; Michael J. Brown of Cumming, Georgia; Tamara D. Johnson of Atlanta, Georgia; or Omar G. Guerra of Overland Park, Kansas, EACH as its true and lawful attorney -in -fact to sign, execute, seal, deliver for, and on behalf of the said Company, and as its act and deed any place in the United States any and all surety, bonds, undertakings, recognizances and contracts of suretyship to be given to all obligees provided that no bond or undertaking or contract of suretyship executed under this authority shall exceed in amount of the sum of $7,000,000 (Seven Million Dollars), any single instance. Provided, however, that this power of attorney limits the acts of those named herein; and they shall have no authority to bind the Company except in the manner stated and to the extent of any limitation herein. This Power of Attorney is granted and is signed and sealed by facsimile under and by the authority of the following Resolutions adopted pursuant to due authorization by the Board of Directors of the Company on the 2nd day of February, 2016. RESOLVED, that the President. Chairman, or any Senior Vice President or Vice President of the Company, in conjunction with any Senior Vice President or Vice President, be, and that each or any of them hereby is, authorized to appoint Attorneys -in -fact of the Company as may be necessary to act on behalf of the Company to make, execute, seal, acknowledge and deliver as surety any and all bonds, undertakings, recognizances, contracts of suretyship and other surety obligations. Such Attorneys -in -fact, subject to the limitations set forth in their respective powers of attorney, shall have full power to bind the Company by their signature and execution of any such instruments and to attach thereto the seal of the Company. When so executed such instruments shall be as binding as if signed by the President and attested by the Secretary. FURTHER RESOLVED, that any and all Powers of Attorney and Certified Copies of such Powers of Attorney and certification in respect thereto, granted and executed by the President or Senior Vice President, in conjunction with any Senior Vice President or Vice President of the Company, shall be binding on the Company to the same extent as if all signatures therein were manually affixed, even though one or more of any such signatures thereon may be facsimile. IN WITNESS WHEREOF, the Company has caused its official seal to be hereto affixed, and these presents to be sealed with its corporate seal and duly attested to by the President and this Senior Vice President this 28nd day of January 2021. STATE of NEW YORK COUNTY of NEW YORK On January 28, 2021 before me, the above named President and Senior Vice President, personally appeared, who proved to me on the basis of satisfactory evidence to be the persons whose names are subscribed to the within instrument and acknowledged to me that they executed the same in their authorized capacities, that they know the seal of Fair American Insurance and Reinsurance Company, and that their signatures and the seals of Fair American Insurance and Reinsurance Company were duly affixed and subscribed to said instrument by the authority and direction of the Company. I certify under PENALTY OF PERJURY under the laws of the State of New York that the foregoing paragraph is true and correct. VIN' PATRICK ENG WITNESS my hand and official seal. Notary Public State of New York New York Cotmty Uc. fi021EN6383eci5 Signature CG (Seal) gym' ' bec 7 2oz3 I, Christopher O'Gwen, the undersigned, an Officer of Fair American Insurance and Reinsurance Company, a New York Corporation, DO HEREBY CERTIFY that the foregoing and attached Power of Attorney is a true and correct copy of the original power of attorney, and do hereby further certify that the said Powers are still in force and effect. Signed and sealed.attti bity o1' New York. Dated the 8th day of December , 2021 . Christopher O'Gwen, President No. 5525 For Bond# BND1008797-00 RECEIPT OF ADDENDA The undersigned acknowledges receipt of the following Addenda to the Invitation for Bids, Drawings, Specifications and other Contract Documents. Addendum No. 1, 2 Date: 11/10 By: Matt Lamar, President Addendum No. 3, 4, 5 Date:11/30 _By_ Matt Lamar, President Addendum No. Date: By: Addendum No. Date: _By:__________ Contractor agrees to perform all Work described in the Contract Documents for the prices as shown in the Bid Tabulation. Progress payments shall be based on a percentage of the Lump Sum price shown in the bid tabulation which has been completed or the actual quantities furnished, installed or constructed. The undersigned, by his/her signature, hereby acknowledges and represents that: 1. Performance of each and every portion of the Work Is included as part of the Contractor's Price. 2. All designs, equipment, materials, labor, insurance and bond premiums, offices, other overhead, profit and services relating to the Contractor's performance of its obligations under the Contract Documents (including all Work, Warranties, equipment, materials, labor, and services provided by subcontractor and intellectual property rights necessary to perform the Work) are included as part of the Contractor's Price. 3. The cost of obtaining all Governmental Approvals (except for approvals which are the responsibility of the County, as specifically provided elsewhere in the Contract Documents) is included as part of the Contractor's Price. 4. All costs of compliance with and maintenance of the Governmental Approvals and compliance with legal requirements are included as part of the Contractor's Price. 5. Payment of any taxes, duties, permit fees, and other fees and/or royalties imposed with respect to the Work and any equipment, materials, labor, or services included therein are included a part of the Contractor's Price. 6. All fines, penalties, and damage payments to others as Contractor is obligated to pay herein are include as part of the Contractor's Price. 7. The Contractor's Price proposed herein meets all the conditions, specifications and special provisions set forth in the request for proposal for Request No. B2100076. 8. The signatory is authorized to bind the below -named contractor for the amount shown on the accompanying bid tabulation. 9. The signed bid submitted, all the documents o€ the Request for Proposal contained herein (including, but not limited to, product specifications and scope of services), and the formal acceptance of the bid by Weld County, together constitutes a contract, with the contract date being the date of formal acceptance of the bid by Weld County. 10. Weld County reserves the right to reject any and all bids, to waive any informality in the bids, and to accept the bid that, in the opinion of the Board of County Commissioners, is to the best interests of Weld Coun . The bid(s) may be awarded to more than one vendor. FIRM L4 Construction DBA L4 Environmental BY (Please print) BUSINESS 13 Dos Rios ADDRESS DATE 2-08-2021 CITY, STATE, ZIP CODE Greeley, Colorado 80634 TELEPHONE SIGNATURE E-MAIL TAX ID # 46-4570055 191. Fof111 W9 Request for Taxpayer Give Form to the (Rev. umber 2014) I Identification Number and Certification requester. Do not Department of the Treasury send to the IRS. Internal Revenue service 1 Name (as shown on your income tax return). Name is required on this tine; do not leave this line blank. L4 Construction LLC N 2 Business name/disregarded entity name, if different from above $, L4 Environmental m rL 3 Check appropriate box for federal tax classification; check only one of the following seven boxes: 4 Exemptions (codes apply only to ecertain ❑ Individual/sole proprietor or 0 C Corporation ❑ S Corporation ❑ Partnership 0 Trust/estate entities, not individuals; see instructions on page 3): •c single member LLC ❑ Limited liability company. Enter the tax classification (C --C corporation. S=S corporation. P=partnershp) ► S Exempt payee code fd a Note. For a single -member LLC LLC that is disregarded, do not check LLC; check the appropriate box in the line above for Exemption from FATCA reporting the tax classification of the single -member owner. code (if any) ❑ Other (see instructions) ► offerer a MMM—da,miw v. us) 5 Address (number, street, and apt. or suite no.) Requester's name and address (optional) 13 Dos Rios 6 City, state, and ZIP code Greeley, CO 80634 7 List account number(s) here (optional) Taxpayer Identification Number (TIN) Enter your TIN in the appropriate box. The TIN provided must match the name given on line 1 to avoid Social security number backup when, sole . For individuals,ror this is generally yyour ar security number (SSN). . For However, froc a _ m _ resident alien, sole proprietor, or disregarded entity, see the Part I instructions on page 3. For other entities, it is your employer identification number (EIN). If you do not have a number, see How to get a TIN on page 3. or Note. if the account is in more than one name, see the instructions for line 1 and the chart on page 4 for I Employer Identification number guidelines on whose number to enter. . I . I _1 _ Under penalties of perjury, I certify that 1. The number shown on this form is my correct taxpayer identification number (or I am waiting for a number to be issued to me): and 2. 1 am not subject to backup withholding because: (a) I am exempt from backup withholding, or (b) I have not been notified by the Internal Revenue Service (IRS) that I am subject to backup withholding as a result of a failure to report all interest or dividends, or (c) the IRS has notified me that I am no longer subject to backup withholding; and 3. 1 am a U.S. citizen or other U.S. person (defined below); and 4. The FATCA code(s) entered on this form (if any) indicating that I am exempt from FATCA reporting is correct. Certification instructions. You must cross out item 2 above if you have been notified by the IRS that you are currently subject to backup withholding because you have failed to report all interest and dividends on your tax return. For real estate transactions, item 2 does not apply. For mortgage interest paid, acquisition or abandonment of secured property, cancellation of debt, contributions to an individual retirement arrangement (IRA), and generally, payments other than interest and dividends, you are not required to sign the certification, but you must provide your correct TIN. See the instructions on page 3. ' 1 Here I U.& p.rso ► /f/2//I , //!�j/YjLL1iiC_ Date ► Tj /(D /,� l General Instructions Section references are to the Internal Revenue Code unless otherwise noted. Future developments. Information about developments affecting Form W-9 (such as legislation enacted after we release it) is at www.iragov/tw9. Purpose of Form An individual or entity (Form W-9 requester) who is required to file an information return with the IRS must obtain your correct taxpayer identIfx athon number (TIN) which may be your social security number (SSN), Individual taxpayer identification number MTIN). adoption taxpayer identification number (ATIN). or employer identification number (FIN), to report on an information return the amount paid to you, or other amount reportable on an information return. Examples of information returns Include, but are not limited to, the following: • Form 1099-INT (interest earned or paid) 3. Claim exemption from backup withholding If you are a U.S. exempt payee. If cab • Form /099 -ON (dividends, including those from stocks or mutual funds) applicable, e, you are also certifying that as a V.S. person, your allocable share of any partnership income from a U.S. trade or business is not subject to the • Form 1099-MISC (various types of income, prizes, awards, or gross proceeds) withholding tax on foreign partners' share of effectively connected income, and • Form 1099-8 (stock or mutual fund sales and certain other transactions by 4. Certify that FATCA code(s) entered on this form (If any) indicating that you are brokers) exempt from the FATCA reporting, is correct. See What is FATCA reporting? on • Form 1099-S (proceeds from real estate transactions) page 2 for further information. • Form 1099-K (merchant card and third party network transactions) • Form 1098 Mama mortgage interest), 1098-E (student loan Interest), 1098-T (tuition) • Form 1099-C (canceled debt) • Form 1099-A (acquisition or abandonment of secured property) Use Form W-9 only if you are a U.S. person (including a resident alien), to provide your correct TIN. If you do riot return Form W-9 to the requester with a TIN, you might be subject to backup withholding. See What is backup withholding? on page 2. By signing the filled -out form, you: 1. Certify that the TIN you are giving is correct (or you are waiting for a number to be issued), 2. Certify that you are not subject to backup withholding, or Cat. No. 10231X Form W-9 (Rev. 12-2014) **ALL BIDDERS SHALL PROVIDE A W-9 WITH THE SUBMISSION OF THEIR BID. FAILURE TO SUBMIT A W-9 SHALL RESULT IN THE Rin NAT RGINr_ AcccoTcn ** ANTI -COLLUSION AFFIDAVIT PUBLIC WORKS STORMWATER IMPROVEMENTS 00076) I hereby attest that I am the person responsible within my firm for the final decision as to the price(s) and amount of this bid or, if not, that I have written authorization, enclosed herewith, from that person to make the statements set out below on his or her behalf and on behalf of my firm. I further attest that 1. The price(s) and amount of this bid have been arrived at independently, without consultation, communication or agreement for the purpose or with the effect of restricting competition with any other firm or person who Is a bidder or potential prime bidder. 2A. Neither the price(s) nor the amount of this bid have been disclosed to any other firm or person who is a bidder or potential prime bidder on this project and will not be so disclosed prior to bid opening. 2B. Neither the prices nor the amount of the bid of any other firm or person who is a bidder or potential prime bidder on this project have been disclosed to me or my firm. 3A. No attempt has been made to solicit, cause or induce any firm or person who is a bidder or potential prime bidder to refrain from bidding on this project, or to submit a bid higher than the bid of this firm, or any intentionally high or non- competitive bid or other form of complementary bid. 3B. No agreement has been promised or solicited for any other firm or person who is a bidder or potential prime bidder on this project to submit an intentionally high, noncompetitive or other form of complementary bid on this project. 4. The bid of my firm is made in good faith and not pursuant to any consultation, communication, agreement or discussion with, or inducement or solicitation by or from any firm or person to submit any intentionally high, noncompetitive or other form of complementary bid. 5. My firm has not offered or entered into a subcontract or agreement regarding the purchase or sale of materials or services from any firm or person, or offered, promised or paid cash or anything of value to any firm or person, whether in connection with this or any other project, in consideration for an agreement or promise by any firm or person to refrain from bidding or to submit any intentionally high, noncompetitive or other form of complementary bid or agreeing or promising to do so on this project. 6. My firm has not accepted or been promised any subcontract or agreement regarding the sale of materials or services to any firm or person and has not been promised or paid cash or anything of value by any firm or person, whether in connection with this or any other project, in consideration for my firm's submitting any intentionally high, noncompetitive or other form of complementary bid, or agreeing or promising to do so, on this project. 7. I have made a diligent inquiry of all members, officers, employees, and agents of my firm with responsibilities relating to the preparation, approval or submission of my firm's bid on this project and have been advised by each of them that he or she has not participated in any communication, consultation, discussion, agreement, collusion, or other conduct inconsistent with any of the statements and representations made in this affidavit. 8. I understand and my firm understands that any misstatement in this affidavit is and shall be treated as a fraudulent concealment from the Colorado Department of Transportation, of the true facts relating to submission of bids for this contract. I DECLARE UNDER PENALTY OF PERJURY IN THE SECOND DEGREE, AND ANY OTHER APPLICABLE STATE OR FEDERAL LAWS, THAT THE STATEMENTS MADE ON THIS DOCUMENT ARE TRUE AND CO ETE TO THE BEST OF MY KNOWLEDGE. Contractor's firm or company name By Matt Lamar Date 1zmmov L4 Construction DBA L4 Environmental Title Preside 2nd contractor's firm or company name. (If joint venture.) By Date Title Sworn to before me this 07th day of, December , 2021 Notary Public CHRISTINA TRENHOLM Notary Public State of Colorado Notary ID n 2oi 84028493 My commission expires o- i i . NOTE: This document must be signed in ink. Weld Form #606 21 1 :, TITL4 49, CFR, PART 29 DEBARMENT AND SUSPENSION CERTIFICATION (To be signed by authorized signatory of Proposer, each Major Participant) The undersigned, under penalty of perjury, certifies that, except as noted below, he/she or any other person associated therewith in the capacity of owner, partner, director, officer, manager: • Is not currenfy under suspension, debarment, voluntary exclusion, or determination of ineligibility by any federal agency. • Has not been suspended, debarred, voluntarily excluded or determined ineligible by any federal agency within the past 3 years. • Does not have a proposed debarment pending. • Has not been Indicted, convicted, or had a civil judgment rendered against it by a court of competent jurisdiction in any manner involving fraud or official misconduct within the past 3 years. • Has not within the past 3 years had one or more public transactions (federal, state or local) terminated for cause or default. If there are any exceptions to this certification, Insert the exceptions in the following space. Exceptions will not necessarily result in denial 4f Award but will be considered in determining bidder responsibility. For any exception noted above, indicate below to whom it applies, initiating agency, and dates of action. Note: Providing false information may result in criminal prosecution or administrative Date; 12/07/2021 /IAA I, tee. Signature President Title 221 NO. Weld County ASSIGNMENT OF ANTITRUST CLAIMS Contractor and Weld County recognize that in actual economic practice antitrust violations ultimately impact on Weld County. Therefore, for good cause and as consideration for executing this contract and for receiving payments hereunder: 1. Contractor hereby irrevocably assigns to Weil County any and all claims it may now have or which may hereafter accrue to it under federal or state antitrust laws in connection with the particular project, goods or services purchased or acquired by Weld County pursuant to this contract. 2. Contractor hereby expressly agrees: a. That, upon becoming aware that a third party has commenced a civil action asserting on Contractor's behalf an antitrust claim which has been assigned to Weld County hereunder, Contractor shall immediately advise in writing: (1) Such third party that the antitnjst claim has been assigned to Weld County, and (2) Weld County that such civil action is pending and of the date on which, in accordance with subparagraph a. (1) above, Contractor notified such third party that the antitrust claim had been assigned to Weld County; b. To take no action which will in any way diminish the value of the claims or rights assigned or dedicated to Weld County hereunder; and c. Promptly to pay over to Weld County its proper share of any payment under an antitrust claim brought on Contractor's behalf by any third party and which claim has been assigned to Weld County hereunder. 3. Further, Contractor agrees that in the event it hires one or more subcontractors to perform any of its duties under the contract, Contractor shall require that each such subcontractor: a. Irrevocaply assign to Weld County (as a third party beneficiary) any and all claims that such subcontractor may have or which tTiay thereafter accrue to the subcontractor under federal or state antitrust laws in connection with any goods or services provided by the subcontractor in carrying out the subcontractor's obligations to Contractor; b. Upon becoming aware that a third party has commenced a civil action on the subcontractor's behalf asserting an antitrust claim which has been assigned to Weld County hereunder, shall immediately advise in writing: (1) Such third party that the antitrust claim has been assigned to Weld County, and (2) Contractor and Weld County that such civil action is pending and of the date on which, in accordance with subparagraph b. (1) above, the subcontractor notified such third party that the antitrust claim had been assigned to Weld County; c. Take no action which will in any way diminish the value of the claims or rights assigned or dedicated to Weld County hereunder; and d. Promptly pay over to Weld County its proper share of any payment under an antitrust claim brought on the subcontractor's behalf by ahy third party and which claim has been assigned or dedicated to Weld County pursuant hereto. I, acting in my capacity as officer of a bidder (bidders if a joint venture) do agree to the above assignment of antitrust claims. or'sInnorcdnpamryname By Matt Lamar(T7 Date 12/08/2021 L4 Construction DBA L4 Environmental lT. — .. ./7 or company name. Title Weld Form 1821 1120 24 I P V Weld County CONTRACTORS PERFORMANCE CAPABILITY STATEMENT Project # 1. List names of partnerships or joint ventures none 2. List decreases in the contractors fiscal or workmanship qualifications compared to the last prequalification statement submitted to Weld County. (Attach additional sheets if necessary.) a. Key personnel changes none b. Key equipment changes one C. Fiscal capability changes (legal actions, etc.) tone d. Other changes that may effect the contractors ability to perform work. Vone I DECLARE UNDER PENALTY OF PERJURY IN THE SECOND DEGREE, AND ANY OTHER APPLICABLE STATE OR FEDERAL LAWS, THAT THE STATEMENTS MADE ON THIS DOCUMENT ARE TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE Contractor's firm or company name L4 Construction DBA L4 Environmental By Matt Lamar Date 12/08/2021 rue Presid 2nd Contractor's firm or company name (if Joint venture) By Date Title wea Farm a000 1120 23I, December 15, 2021 PUBLIC WORKS DEPARTMENT 1111 H STREET, P.O. BOX 758 GREELEY, COLORADO 80632 WEBSITE: www.weldgov.com v.com PHONE: (970) 304-6496 FAX: (970) 304-6497 To: Board of County Commissioners From: Lyndsay Holbrook Subject: PW Stormwater Improvements; B2100076 In 2021, Public Works completed the design of a Public Works Master Drainage Plan for redevelopment of the site to be in compliance with MS4 stormwater treatment requirements. The plan details a series of stormwater improvements that will convey and treat stormwater runoff from the Public Works campus and the adjacent fuel site prior to discharging to the Cache la Poudre River. On November 3`d, a Request For Proposal (RFP) for the construction of these stormwater improvements was advertised and bids were due on December 8th. Public Works received four responsive bids ranging from $1,852,120 to $3,270,215, with the lowest responsive bidder being L4 Environmental. Public Works recommends awarding the bid to L4 Environmental in the amount of $1,852,120. The anticipated completion date for this project is May 31, 2022. If you have any questions, please contact me at extension 3788. Sincerely, Lyndsay Holbrook MS4 Administrator NOTICE OF AWARD To: L4 Construction, LLC dba L4 Environmental 304 Main Street, Unit C Lyons, CO 80540 Project Description: PUBLIC WORKS STORMWATER IMPROVEMENTS The project in general consists of the construction of seven water quality features, including five water quality ponds, one water quality swale, and one evaporation pond. Additionally, one oil/sand separator will be installed at the fuel site. The project also includes all associated drainage features including concrete pans, concrete curb and gutter, inlets, a manhole, underground culverts, outlet structures, concrete spillways, riprap spillways and riprap rundowns. It also involves the implementation of a Stormwater Management Plan and installation of temporary erosion control measures to prevent offsite discharge of pollutants during construction. The Owner has considered the Bid submitted by you for the above -described Work in response to its Invitation for Bids and Instructions to Bidders. You are hereby notified that your Bid has been accepted in the amount of $1,852,120.O0 or as shown in the Bid Schedule. You are required by the Instructions to Bidders to execute one original of the Agreement and furnish the required Performance Bond, Payment Bond and Certificates of Insurance within ten (10) calendar days from the date of this Notice to you. If you fail to execute said Agreement and to furnish said Bonds within ten (10) days from the date of this Notice, said Owner will be entitled to consider all your rights arising out of the Owner's acceptance of your bid as abandoned. The Owner will be entitled to such other rights as may be granted by law. You are required to return an acknowledged copy of this Notice of Award to the Owner. Dated this 28th day of December 2021 `,geld Coun Colorado, Owner By. Lyndsay Holbrook, dministrator ACCEPTANCE OF NOTICE Receipt of the above Notice of Award is hereby acknowledged by L4 Construction LLC dba L4 Environmental (Contractor) Dated this 28th day of December . 2021 By. Matt Lamar Title: President / T ® AC oRo CERTIFICATE OF LIABILITY INSURANCE DATE (MMIDD/YYYY) 01 /07/2022 THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS NO RIGHTS UPON THE CERTIFICATE HOLDER. THIS CERTIFICATE DOES NOT AFFIRMATIVELY OR NEGATIVELY AMEND, EXTEND OR ALTER THE COVERAGE AFFORDED BY THE POLICIES BELOW. THIS CERTIFICATE OF INSURANCE DOES NOT CONSTITUTE A CONTRACT BETWEEN THE ISSUING INSURER(S), AUTHORIZED REPRESENTATIVE OR PRODUCER, AND THE CERTIFICATE HOLDER. IMPORTANT: If the certificate holder is an ADDITIONAL INSURED, the policy(ies) must have ADDITIONAL INSURED provisions or be endorsed. If SUBROGATION IS WAIVED, subject to the terms and conditions of the policy, certain policies may require an endorsement A statement on this certificate does not confer rights to the certificate holder in lieu of such endorsement(s). PRODUCER CONTACT Terri Hauk NAME: ISU Insurance Services of Colorado acNNo Ext : (303) 534-2133 aC, No): (303) 892-5579 350 Indiana Street, Suite 750 E-MAIL ADDRESS: thauk@isuinsurance.com INSURER(S) AFFORDING COVERAGE NAIC # INSURERA: Cincinnati Insurance Companies 10677 Golden CO 80401 INSURED INSURER B: Pinnacol Assurance Co 41190 L 4 Construction LLC INSURER C: Homeland Insurance Co L 4 Environmental INSURER D: Lloyds of London 304 Main St, Unit C INSURER E: Lyons CO 80540 INSURERF: : COVERAGES CERTIFICATE NUMBER: 2021-2022 Master REVISION NUMBER: THIS IS TO CERTIFY THAT THE POLICIES OF INSURANCE LISTED BELOW HAVE BEEN ISSUED TO THE INSURED NAMED ABOVE FOR THE POLICY PERIOD INDICATED. NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THIS CERTIFICATE MAY BE ISSUED OR MAY PERTAIN, THE INSURANCE AFFORDED BY THE POLICIES DESCRIBED HEREIN IS SUBJECT TO ALL THE TERMS, EXCLUSIONS AND CONDITIONS OF SUCH POLICIES. LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS. INS TYPE OF INSURANCE •N&'WVD POLICY NUMBER POLICY EFF MM/DD EXP MM DD Y LIMITS X COMMERCIAL GENERAL LIABILITY EACH OCCURRENCE $ 1,000,000 I I CLAIMS -MADE [J OCCUR DAMAGE TO RENTED PREMISES (Ea occurrence $ 500,000 MED EXP (Any one person) $ 10,000 PERSONAL&ADV INJURY $ 1,000,000 A/C Y ENP0607969 /793-01-09-27-000 03/12/2021 03/12/2022 GEN'LAGGREGATE LIMIT APPLIES PER: GENERALAGGREGATE $ 2,000,000 POLICY PRO ❑ LOC JECT PRODUCTS - COMP/OPAGG $ 2,000,000 Pollution Limits Agg/Occ $ 2 mil / $1 mil X OTHER: Pollution Liability AUTOMOBILE LIABILITY COMBINED SINGLE LIMIT Ea accident $ 1,000,000 BODILY INJURY (Per person) $ ANY AUTO A X OWNED SCHEDULED AUTOS ONLY AUTOS HIRED NON -OWNED AUTOS ONLY AUTOS ONLY ENP0607969 03/12/2021 03/12/2022 BODILY INJURY (Per accident) $ X PROPERTY DAMAGE Per accident $ X UMBRELLA LIAR X OCCUR EACH OCCURRENCE $ 5,000,000 EXCESS LIAB CLAIMS -MADE ENP0607969 03/12/2021 03/12/2022 AGGREGATE $ 5,000,000 DED I RETENTION $ $ 1ANY WORKERS COMPENSATION AND EMPLOYERS' LIABILITY YIN PROPRIETOR/PARTNER/EXECUTIVE OFFICER/MEMBER EXCLUDED? (Mandatory in NH) NIA 4178182 11/01/2021 11/01/2022 xl STATUTE OOTH E. L. EACH ACCIDENT $ 1,000,000 E.L. DISEASE - EA EMPLOYEE $ 1,000,000 If yes, describe under DESCRIPTION OF OPERATIONS below E.L. DISEASE - POLICY LIMIT 1,000,000 $ Install Floater Lmt/Ded $100,000 / $1,000 A/D Installation Floater Professional Liability (eff 6/1/21-22) ENP0607969 / B087520C9N505 03/12/2021 03/12/2022 Prof Liab Limit $2,000,000 Agg $1,000,000 Occ DESCRIPTION OF OPERATIONS I LOCATIONS I VEHICLES (ACORD 101, Additional Remarks Schedule, may be attached if more space is required) Weld County, Colorado, its elected officials and employees are listed as an additional insured with regard to General Liability (per attached form #GA233 & GA472) Auto Liability (per attached form #AA288). General Liability is Primary and Non-contributory (per form #GA233). A Waiver of Subrogation is afforded to the certificate holder in regard to General Liability (per form #GA233), Auto Liability (per form # AA288), Umbrella Liability and Work Comp (per form #359-B). SHOULD ANY OF THE ABOVE DESCRIBED POLICIES BE CANCELLED BEFORE THE EXPIRATION DATE THEREOF, NOTICE WILL BE DELIVERED IN Weld County, Colorado ACCORDANCE WITH THE POLICY PROVISIONS. PO Box 758 AUTHORIZED REPRESENTATIVE Greeley CO 80632 J 1 © 1988-2015 ACORD CORPORATION. All rights reserved. ACORD 25 (2016/03) The ACORD name and logo are registered marks of ACORD PINNIACOL ASSURANCE L4 Construction LLC PO Box 409 Lyons, CO 80540 ENDORSEMENT: Blanket Waiver of Subrogation 7501 E. Lowry Blvd. Denver, CO 80230-7006 303.361.4000 I 800.873.7242 Pinnacol.com NCCI #: WC000313B Policy #: 4178182 ISU Insurance Services of Colorado 350 Indiana Street Suite 750 Golden, CO 80401 (303) 534-2133 We have the right to recover our payments from anyone liable for an injury covered by this policy. We will not enforce our right against the person or organization named in the Schedule. This agreement applies only to the extent that you perform work under a written contract that requires you to obtain this agreement from us. This agreement shall not operate directly or indirectly to benefit anyone not named in the Schedule. SCHEDULE To any person or organization when agreed to under a written contract or agreement, as defined above and with the insured, which is in effect and executed prior to any loss. Effective Date:November 1, 2019 Expires on: November 1, 2020 Pinnacol Assurance has issued this endorsement November 1, 2019 7501 E. Lowry Blvd Denver, CO 80230-7006 Page 1 of 1 P ISA- 11/01/2019 18:21:20 4178182 54940262 359-B THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. CONTRACTORS' COMMERCIAL GENERAL LIABILITY BROADENED ENDORSEMENT This endorsement modifies insurance provided under the following: COMMERCIAL GENERAL LIABILITY COVERAGE PART A. Endorsement - Table of Contents: Coverage: Begins on Page: 1. Employee Benefit Liability Coverage.......................................................................................3 2. Unintentional Failure To Disclose Hazards.............................................................................9 3. Damage To Premises Rented To You......................................................................................9 4. Supplementary Payments......................................................................................................10 5. Medical Payments...................................................................................................................10 6. 180 Day Coverage For Newly Formed Or Acquired Organizations...................................10 7. Waiver Of Subrogation...........................................................................................................11 8. Automatic Additional Insured -Specified Relationships:..................................................11 • Managers Or Lessors Of Premises; • Lessor Of Leased Equipment; • Vendors; • State Or Governmental Agency Or Subdivision Or Political Subdivision - Permits Or Authorizations Relating To Premises; and • Mortgagee, Assignee Or Receiver 9. Property Damage To Borrowed Equipment.........................................................................14 10. Employees As Insureds - Specified Health Care Services And Good Samaritan Services...................................................................................................................................15 11. Broadened Notice Of Occurrence.........................................................................................15 12. Nonowned Aircraft..................................................................................................................15 13. Bodily Injury Redefined..........................................................................................................15 14. Expected Or Intended Injury Redefined...............................................................................15 15. Former Employees As Insureds............................................................................................15 16. Voluntary Property Damage Coverage And Care, Custody Or Control Liability Coverage..................................................................................................................................16 17. Broadened Contractual Liability -Work Within 50' Of Railroad Property .........................17 18. Alienated Premises................................................................................................................. 17 B. Limits Of Insurance: The Commercial General Liability Limits of Insurance apply to the insurance provided by this endorse- ment, except as provided below: 1. Employee Benefit Liability Coverage Each Employee Limit: $1,000,000 Aggregate Limit: $3,000,000 Deductible Amount: $ 1,000 3. Damage To Premises Rented To You The lesser of: a. The Each Occurrence Limit shown in the Declarations; or b. $500,000 unless otherwise stated $ 4. Supplementary Payments a. Bail Bonds: $2,500 Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 1 of 17 b. Loss Of Earnings: $ 500 5. Medical Payments Medical Expense Limit: $ 10,000 9. Property Damage To Borrowed Equipment Each Occurrence Limit $10,000 Deductible Amount: $ 250 16. Voluntary Property Damage Coverage (Coverage a.) And Care, Custody Or Control Liability Coverage (Coverage b.) Limits Of Insurance Coverage a. $1,000 Each Occurrence $5,000 Aggregate Coverage b. $5,000 Each Occurrence unless otherwise stated $ Deductible Amount (Each Occurrence) Coverage a. $250 Coverage b. $250 unless otherwise stated $ COVERAGE PREMIUM BASIS RATE ADVANCE PREMIUM (a) Area (For Limits in Excess of (For Limits in Excess of (b) Payroll $5,000) $5,000) (c) Gross Sales (d) Units (e)__Other b. Care, Custody Or $ Control TOTAL ANNUAL PREMIUM Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 2 of 17 C. Coverages this endorsement pro- 1. Employee Benefit Liability Coverage vided: a) You did not havea. The following is added to Section I - knowledge of a Coverages: claim or "suit' on or Employee Benefit Liability Cover- before the "first ef- age fective date" of this endorsement. (1) Insuring Agreement You will be (a) We will pay those sums that deemed to have the insured becomes legally knowledge of a obligated to pay as damag- claim or "suit' es caused by any act, error when any "author - or omission of the insured, ized representa- or of any other person for tive"; whose acts the insured is legally liable, to which this i) Reports all, or insurance applies. We will any part, of the have the right and duty to act, error or defend the insured against omission to us any "suit' seeking those or any other damages. However, we will insurer, have no duty to deferxi ii) Receives a against any "suit' seeking written or ver- damages to which this in- bal demand or- ca surance does not apply. We pp y� claim for dam - may, at our discretion, in- ages because vestigate any report of an of the act, Br- act, error or omission and ror or omis- settle any claim or "suit' that sion; and may result. But: b) There is no other 1) The amount we will pay applicable insur- for damages is limited ance. as described in Section III - Limits Of Insur- (2) Exclusions once; and This insurance does not apply to: 2) Our right and duty to defend ends when we (a) Bodily Injury, Property have used up the appli- Damage Or Personal And cable limit of insurance Advertising Injury in the payment of judg- "Bodily injury", "property ments or settlements. damage" or "personal and No other obligation or liabil- advertising injuryl". ity to pay sums or perform (b) Dishonest, Fraudulent, acts or services is covered Criminal Or Malicious Act unless explicitly provided for under Supplementary Damages arising out of any Payments. intentional, dishonest, fraudulent, criminal or mali- o This insurance applies to s (b)dama cious act, error or omission, es only if the act, er- gcommitted by any insured, ror or omission, is negligent- including the willful or reck- ly committed in the "admin- less violation of any statute. istration" of your "employee benefit program"; and (c) Failure To Perform A Con- tract 1) Occurs during the policy period; or Damages arising out of fail- ure of performance of con - 2) Occurredprior to the tract by any nsurer. "first effective date" of Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 3 of 17 (d) Insufficiency Of Funds (i) Taxes, Fines Or Penalties Damages arising out of an Taxes, fines or penalties, in - insufficiency of funds to cluding those imposed un- meet any obligations under der the Internal Revenue any plan induded in the Code or any similar state or "employee benefit program". local law. (e) Inadequacy Of Perfor- (j) Employment -Related Prac- mance Of Invest- tices ment/Advice Given With Respect To Participation Any liability arising out of any: Any daim based upon: (1) Refusal to employ; 1) Failure of any invest- ment to perform; (2) Termination of employ- ment; 2) Errors in providing in- formation on past per- (3) Coercion, demotion, formance of investment evaluation, reassign - vehicles; or ment, discipline, defa- mation, harassment, 3) Advice given to any humiliation, discrimina- person with respect to tion or other employ - that person's decision to ment - related practices, participate or not to par- acts or omissions; or ticipate in any plan in- cluded in the "employee (4) Consequential liability benefit program". as a result of (1), (2) or (3) above. (f) Workers' Compensation And Similar Laws This exclusion applies whether the insured may be Any claim arising out of your held liable as an employer failure to comply with the or in any other capacity and mandatory provisions of any to any obligation to share workers' compensation, un- damages with or repay employment compensation someone else who must pay insurance, social security or damages because of the in - disability benefits law or any jury. similar law. (3) Supplementary Payments (g) ERISA Section I - Coverages, Sup - Damages for which any in- plementary Payments - Cover- sured is liable because of Ii- ages A And B also apply to this ability imposed on a fiduci- Coverage. ary by the Employee Re- tirement Income Security b. Who Is An Insured Act of 1974, as now or As respects Employee Benefit Lia- hereafter amended, or by bility Coverage, Section II - Who Is any similar federal, state or An Insured is replaced by the follow - local laws. ing: (h) Available Benefits (1) If you are designated in the Dec - Any daim for benefits to the larations as: extent that such benefits are (a) An individual, you and your available, with reasonable spouse are insureds, but on - effort and cooperation of the ly with respect to the con - insured, from the applicable duct of a business of which funds accrued or other cal- you are the sole owner. ledible insurance. (b) A partnership or joint ven- ture, you are an insured. Your members, your part - Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 4 of 17 ners, and their spouses are zation. However, coverage under also insureds but only with this provision: respect to the conduct of your business. (a) Is afforded only until the 180th day after you acquire (c) A limited liability company, or form the organization or you are an insured. Your the end of the policy period, members are also insureds, whichever is earlier; and but only with respect to the conduct of your business. (b) Does not apply to any act, Your managers are in- error or omission that was sureds, but only with respect committed before you ac - to their duties as your man- quired or formed the organi- agers. zation. (d) An organization other than a c. Limits Of Insurance partnership, joint venture or As respects Employee Benefit Lia- limited liability company, you bility Coverage, Section III - Limits are an insured. Your "execu- Of Insurance is replaced by the fol- tive officers" and directors lowing: are insureds, but only with respect to their duties as (1) The Limits of Insurance shown in your officers or directors. Section B. Limits Of Insurance, Your stockholders are also 1. Employee Benefit Liability insureds, but only with re- Coverage and the rules below fix spect to their liability as the most we will pay regardless stockholders, of the number of. (e) A trust, you are an insured. (a) Insureds; Your trustees are also in- sureds, but only with respect (b) Claims made or "suits" to their duties as trustees. brought; (2) Each of the following is also an (c) Persons or organizations insured: making claims or bringing "suits"; (a) Each of your "employees" who is or was authorized to (d) Acts, errors or omissions; or administer your "employee (e) Benefits included in your benefit program"; "employee benefit program". (b) Any persons, organizations (2) The Aggregate Limit shown in or "employees" having prop- Section B. Limits Of Insurance, er temporary authorization "employ- 1. Employee Benefit Liability to administer your Coverage of this endorsement is ee benefit program" if you the most we will pay for all dam - die, but only until your legal ages because of acts, errors or representative is appointed; omissions negligently committed or in the "administration" of your (c) Your legal representative if "employee benefit program". you die, but only with re- (3) Subject to the limit described in spect to duties as such. That (2) above, the Each Employee representative will have all Limit shown in Section B. Limits your rights and duties under Of Insurance, 1. Employee this Coverage Part. Benefit Liability Coverage of (3) Any organization you newly ac- this endorsement is the most we quire or form, other than a part- will pay for all damages sus- nership, joint venture or limited tained by any one "employee", liability company, and over which including damages sustained by you maintain ownership or major- such "employee's" dependents ity interest, will qualify as a and beneficiaries, as a result of: Named Insured if no other similar (a) An act, error or omission; or insurance applies to that organi- Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 5 of 17 (b) A series of related acts, er- tification of the action taken, rors or omissions, regard- you shall promptly reim- less of the amount of time burse us for such part of the that lapses between such Deductible Amount as we acts, errors or omissions; have paid. negligently committed in the d. Additional Conditions "administration" of your "employ- ee benefit program". As respects Employee Benefit Lia- bility Coverage, Section IV - Com- However, the amount paid under mercial General Liability Condi- this endorsement shall not ex- tions is amended as follows: ceed, and will be subject to the limits and restrictions that apply (1) Item 2. Duties In The Event Of to the payment of benefits in any Occurrence, Offense, Claim Or plan included in the "employee Suit is replaced by the following: benefit program." 2. Duties In The Event Of An (4) Deductible Amount Act, Error Or Omission, Or Claim Or Suit (a) Our obligation to pay dam- ages on behalf of the in- a. You must see to it that sured applies only to the we are notified as soon amount of damages in ex- as practicable of an act, cess of the Deductible error or omission which Amount stated in the Deda- may result in a claim. rations as applicable to To the extent possible, Each Employee. The limits notice should include: of insurance shall not be re- (1) What the act, error duced by the amount of this or omission was deductible. and when it oc- (b) The Deductible Amount curred; and stated in the Declarations (2) The names and applies to all damages sus- addresses of any - tamed by any one "employ- one who may suf- ee", including such "employ- fer damages as a ee's" dependents and bene- result of the act, fidaries, because of all acts, error or omission. errors or omissions to which this insurance applies. b. If a claim is made or "suit' is brought against c The terms of this insurance, ( ) any insured, you must: including those with respect to: (1) Immediately record the specifics of the 1) Our right and duty to "suit' and defend the insured thecla the date received; against any "suits" and seeking those damag- es; and (2) Notify us as soon as practicable. 2) Your duties, and the du- ties of any other in- You must see to it that volved insured, in the we receive written no - event of an act, error or tice of the claim or "suit' omission, or claim; as soon as practicable. apply irrespective of the ap- c. You and any other in- plication of the Deductible volved insured must: Amount. (1) Immediately send (d) We may pay any part or all us copies of any of the Deductible Amount to demands, notices, effect settlement of any summonses or le - claim or "suit' and, upon no- gal papers re - Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 6 of 17 ceived in connec- tion with the claim or "suit'; (2) Authorize us to ob- tain records and other information; (3) Cooperate with us in the investigation or settlement of the claim or defense against the "suit'; and (4) Assist us, upon our request, in the en- forcement of any right against any person or organi- zation which may be liable to the in- sured because of an act, error or omission to which this insurance may also apply. d. No insured will, except at that insured's own cost, voluntarily make a payment, assume any obligation, or incur any expense without our consent. (2) Item 5. Other Insurance is re- placed by the following: 5. Other Insurance If other valid and collectible insurance is available to the insured for a loss we cover under this Coverage Part, our obligations are limited as follows: a. b. Primary Insurance This insurance is prima- ry except when c. below applies. If this insurance is primary, our obliga- tions are not affected unless any of the other insurance is also prima- ry. Then, we will share with all that other insur- ance by the method de- scribed in b. below. Method Of Sharing If all of the other insur- ance permits contribu- tion by equal shares, we will follow this meth- od also. Under this ap- proach each insurer contributes equal amounts until it has paid its applicable limit of insurance or none of the loss remains, whichever comes first. If any of the other in- surance does not permit contribution by equal shares, we will contrib- ute by limits. Under this method, each insurer's share is based on the ratio of its applicable limit of insurance to the total applicable limits of insurance of all insur- ers. c. No Coverage This insurance shall not cover any loss for which the insured is entitled to recovery under any other insurance in force previous to the effective date of this Coverage Part. Additional Definitions As respects Employee Benefit Lia- bility Coverage, Section V - Defini- tions is amended as follows: (1) The following definitions are added: 1. "Administration" means: a. Providing information to "employees", including their dependents and beneficiaries, with re- spect to eligibility for or scope of "employee benefit programs"; b. Interpreting the "em- ployee benefit pro- grams"; c. Handling records in connection with the "employee benefit pro- grams"; or d. Effecting, continuing or terminating any "em- ployee's" participation in Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 7 of 17 any benefit included in c. Unemployment insur- the "employee benefit ance, social security program". benefits, workers' com- pensation and disability However, "administration" benefits; and does not include: d. Vacation plans, includ- a. Handling payroll deduc- ing buy and sell pro- tions; or grams; leave of ab- b. The failure to effect or sence programs, includ- maintain any insurance ing military, maternity, or adequate limits of family, and civil leave; coverage of insurance, tuition assistance plans; including but not limited transportation and to unemployment insur- ance, social security 4. "First effective date" means benefits, workers' com- the date upon which cover- pensation and disability age was first effected in a benefits. series of uninterrupted re - 2. "Cafeteria plans" means newals of insurance cover - plans authorized by applica- age. ble law to allow "employees" (2) The following definitions are de - to elect to pay for certain leted in their entirety and re - benefits with pre-tax dollars. placed by the following: 3. "Employee benefit pro- 8. "Employee" means a person grams" means a program actively employed, formerly providing some of all of the employed, on leave of ab- following benefits to "em- sence or disabled, or retired. ployees", whether provided "Employee" includes a through a "cafeteria plan" or "leased worker". "Employee" otherwise: does not include a "tempo - a. Group life insurance; rary worker". group accident or health 21. "Suit" means a civil proceed - insurance; dental, vision ing in which money damag- and hearing plans; and es because of an act, error flexible spending ac- or omission to which this in - counts; provided that no surance applies are alleged. one other than an "em- 'Suit" includes: ployee" may subscribe to such benefits and a. An arbitration proceed - such benefits are made ing in which such dam - generally available to ages are claimed and to those "employees" who which the insured must satisfy the plan's eligibil- submit or does submit ity requirements; with our consent; b. Profit sharing plans, b. Any other alternative employee savings dispute resolution pro - plans, employee stock ceeding in which such ownership plans, pen- damages are daimed sion plans and stock and to which the in - subscription plans, pro- sured submits with our vided that no one other consent; or than an "employee" may subscribe to such c. An appeal of a civil pro - benefits and such bene- ceeding. fits are made generally available to all "employ- ees" who are eligible under the plan for such benefits; Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 8 of 17 2. Unintentional Failure To Disclose Haz- 2) Rust or other cor- ards rosion, decay, de- Section IV - Commercial General Liabil- terioration, den or latent aefector ltentdhiefecto ity Conditions, 7. Representations is of any n amended by the addition the following: property that caus- y tquhat s - Based on our dependence upon your rep- es it to damage or resentations as to existing hazards, if un- intentionally you should fail to disclose all 3) Smog; such hazards at the inception date of your policy, we will not reject coverage under 4) Mechanical break - this Coverage Part based solely on such down, including failure, rupture or bursting 3. Damage To Premises Rented To You caused by centrif- ugal force; a. The last Paragraph of 2. Exclusions 5) Settling, cracking, under Section I - Coverage A - Bod- shrinking or ex- ily Injury And Property Damage Li- pansion; ability is replaced by the following: Nesting festa- icharge Exclusions c. through q. do not apply ti6) dr on, discharge to "property damage" by fire, explo- aor or release waste sion, lightning, smoke or soot to products oro premises while rented to you or tem- tions, by insects, porarily occupied by you with permis- birds, nor o r other sion of the owner, for which the animals; other or amount we will pay is limited to the Damage To Premises Rented To 7) Presence, growth, You Limit as described in Section III proliferation, - Limits Of Insurance. spread or any ac- tivity ofungus, for b. The insurance provided under Sec- cluding mold r tion I - Coverage A - Bodily Injury 9 mildew, mildew, and any y And Property Damage Liability ap- mycotoxins, plies to "property damage" arising out spores, scents or of water damage to premises that are byproducts pro - both rented to and occupied by you. duced or released (1) As respects Water Damage Le- by fungi. gal Liability, as provided in Para- (b) 'Property damage" caused graph 3.b. above: directly or indirectly by any The exclusions under Section I - of the following: Coverage A - Bodily Injury And (i) Earthquake, volcanic Property Damage Liability, 2. eruption, landslide or Exclusions, other than i. War any other earth move - and the Nuclear Energy Liabil- ment; ity Exclusion (Broad Form), are deleted and the following are (ii) Water that backs up or added: overflows or is other- wise discharged from a This insurance does not apply to: sewer, drain, sump, (a) "Property damage": sump pump or related equipment; (i) Assumed in any con- tract or agreement or (ii) Water under the ground surface pressing on, or (ii) Caused by or resulting flowing or seeping from any of the follow- through: ing: 1) Foundations, walls, 1) Wear and tear; floors or paved surfaces; Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 9 of 17 2) Basements, you with permission of whether paved or the owner; not; or b. In the case of damage 3) Doors, windows or by fire, explosion, light - other openings. ning, smoke or soot, while rented to you; or (c) "Property damage" caused by or resulting from water c. In the case of damage that leaks or flows from by water, while rented plumbing, heating, air condi- to and occupied by you. tioning, fire protection sys- tems, or other equipment, (2) The most we will pay is limited as caused by or resulting from described in Section B. Limits freezing, unless: Of Insurance, 3. Damage To Premises Rented To You of this () You did your best to endorsement. maintain heat in the building or structure; or 4. Supplementary Payments (ii) You drained the equip- Under Section I - Supplementary Pay- ment and shut off the ments - Coverages A And B: water supply if the heat a. Paragraph 2. is replaced by the fol- was not maintained. lowing: (d) "Property damage" to: (i) Plumbing, heating, air conditioning, fire protec- tion systems, or other equipment or applianc- es; or (ii) The interior of any building or structure, or to personal property in the building or structure, caused by or resulting from rain, snow, sleet or ice, whether driven by wind or not. c. Limit Of Insurance With respect to the insurance afford- ed in Paragraphs 3.a. and 3.b. above, the Damage To Premises Rented To You Limit as shown in the Decla- rations is amended as follows: (1) Paragraph 6. of Section III - Limits Of Insurance is replaced by the following: 6. Subject to Paragraph 5. above, the Damage To Premises Rented To You Limit is the most we will pay under Coverage A - Bodily Injury And Property Dam- age Liability for damages because of "property dam- age' to any one premises: a. While rented to you, or temporarily occupied by Up to the limit shown in Section B. Limits Of Insurance, 4.a. Bail Bonds of this endorsement for cost of bail bonds required because of accidents or traffic law violations arising out of the use of any vehicle to which the Bodily Injury Liability Coverage ap- plies. We do not have to furnish these bonds. b. Paragraph 4. is replaced by the fol- lowing: All reasonable expenses incurred by the insured at our request to assist us in the investigation or defense of the claim or "suit', including actual loss of earnings up to the limit shown in Sec- tion B. Limits Of Insurance, 4.b. Loss Of Earnings of this endorsement per day because of time off from work. 5. Medical Payments The Medical Expense Limit of Any One Person as stated in the Declarations is amended to the limit shown in Section B. Limits Of Insurance, 5. Medical Pay- ments of this endorsement. 6. 180 Day Coverage For Newly Formed Or Acquired Organizations Section II - Who Is An Insured is amended as follows: Subparagraph a. of Paragraph 3. is re- placed by the fdlowing: a. Insurance under this provision is af- forded only until the 180th day after Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 10 of 17 you acquire or form the organization use of that part of the prem- or the end of the policy period, ises leased to you, subject whichever is earlier; to the following additional exclusions: 7. Waiver Of Subrogation This insurance does not ap- Section IV - Commercial General Liabil- ply to: ity Conditions, 9. Transfer Of Rights Of Recovery Against Others To Us is (i) Any "occurrence" which amended by the addition of the following: takes place after you cease to be a tenant in right of recovery we may We waive any g that premises; have against any person or organization against whom you have agreed to waive (ii) Structural alterations, such right of recovery in a written contract new construction or or agreement because of payments we demolition operations make for injury or damage arising out of performed by or on be - your ongoing operations or "your work" half of such additional done under a written contract or agree- insured. ment with that person or organization and "products (b) Lessor Of Leased Equip- included in the -completed oper- ations hazard". However, our rights may ment only be waived prior to the "occurrence" Any person or organization giving rise to the injury or damage for from whom you lease which we make payment under this Coy- equipment when you and erage Part The insured must do nothing such person(s) or organiza- after a loss to impair our rights. At our re- tion(s) have agreed per Par - quest, the insured will bring "suit' or trans- agraph 8.a.(1) of this en- fer those rights to us and help us enforce dorsement to provide insur- those rights. ance. Such person(s) or or - 8. Automatic Additional Insured - Speci- ganization(s) are insureds fied Relationships only with respect to liability "bodily "property for injury", a. The following is added to Section II - damage" or "personal and Who Is An Insured: advertising injury" caused, in or in part, by your 1 Any person(s) or organization(s)whole ( ) P ( ) maintenance, operation or described in Paragraph 8.a.(2) of use of equipment leased to this endorsement (hereinafter re- you by such person(s) or or- ferred to as additional insured) ganization(s). A person's or whom you are required to add as organization's status as an an additional insured under this additional insured under this Coverage Part by reason of a endorsement ends when written contract, written agree- their contract or agreement ment, written permit or written with you for such leased authorization, equipment ends. However, (2) Only the following persons or or- this insurance does not ap- "occurrence" ganizations are additional in- ply to any sureds under this endorsement, which takes place after the and insurance coverage provided equipment lease expires. to such additional insureds is lim- (c) Vendors ited as provided herein: Any person or organization (a) Managers 9 Or Lessors Of (referred to below as ven- Premises dor) with whom you have The manager or lessor of a agreed per Paragraph premises leased to you with 8.a.(1) of this endorsement whom you have agreed per to provide insurance, but on - Paragraph 8.a.(1) of this en- ly with respect to 'bodily in- "property dorsement to provide insur- jury" or damage" ance, but only with respect arising out of "yyour products" to liability arising out of the which are distributed or sold ownership, maintenance or in the regular course of the Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 11 of 17 vendor's business, subject or repair opera - to the following additional tions, except such exdusions: operations per- formed t The insurance afforded at the yen - (I) dor's premises in the vendor does not connection with the apply to: sale of the product; 1) "Bodily injury' or 7) Products which, af- "property damage" ter distribution or for which the ven- sale by you, have dor is obligated to been labeled or re- pay damages by labeled or used as reason of the as- a container, part or sumption of liability ingredient of any in a contract or other thing or sub - agreement. This stance by or f+or the exclusion does not vendor; or apply to liability for damages that the 8) "Bodily injury' or vendor would have "property damage" in the absence of arising out of the the contract or sole negligence of agreement; the vendor for its own acts or omis- 2) Any express war- sions or those of ranty unauthorized its employees or by you; anyone else acting 3) Any physical or on its behalf. How - chemical change in ever, this exclusion the product made does not apply to: intentionally by the a) The excep- vendor; tions contained 4) Repackaging, ex- in Paragraphs cept when un- (c) (i) 4) or 6) packed solely for of this en - the purpose of in- spection, demon- b) Such inspec- stration, testing, or tions, acijust- the substitution of ments, tests or parts under in- servicing as structions from the the vendor has manufacturer, and agreed to then repackaged in make or nor - the original con- mally under- tainer; takes to make 5) Any failure to make in the usual such inspections, course of adjustments, tests business, in or servicing as the connection vendor vendor has agreed with the distil - make or normal- bution or sale ly undertakes to of the prod - make in the usual ucts. course of busi- (ii) This insurance does not ness, in connection apply to any insured with the distribution person or organization: or sale of the products; 1) From whom you have acquired 6) Demonstration, in- such products, or stallation, servicing any ingredient, part Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 12 of 17 or container, enter- (e) Mortgagee, Assignee Or ing into, accompa- Receiver nying or containing such products; or Any person or organization with whom you have agreed 2) When liability in- per Paragraph 8.a.(1) of this cluded within the endorsement to provide in- "products- surance, but only with re - completed opera- spect to their liability as tions hazard" has mortgagee, assignee, or re - been excluded un- ceiver and arising out of the der this Coverage ownership, maintenance, or Part with respect to use of the premises by you. such products. However, this insurance does not apply to structural d State Or Governmental (d)alterations, new construction Agency Or Subdivision Or and demolition operations Political Subdivision performed by or for that per - Permits Or Authorizations son or organization. Relating To Premises (3) The insurance afforded to addi- Any state or governmental tional insureds described in Par - agency or subdivision or po- agraph 8.a.(1) of this endorse- litical subdivision with which ment: you have agreed per Para- graph 8.a.(1) of this en- (a) Only applies to the extent dorsement to provide insur- permitted by law; and ance, subject to the follow- ing additional provision: (b) Will not be broader than that which you are required by This insurance applies only the written contract, written with respect to the following agreement, written permit or hazards for which the state written authorization to pro - or governmental agency or vide for such additional in - subdivision or political sub- sured; and division has issued a permit or authorization in connec- (c) Does not apply to any per- tion with premises you own, son, organization, vendor, rent or control and to which state, governmental agency this insurance applies: or subdivision or political subdivision, specifically (i) The existence, mainte- named as an additional in- nance, repair, construc- sured under any other provi- tion, erection or removal sion of, or endorsement of advertising signs, added to, this Coverage awnings, canopies, cel- Part, provided such other lar entrances, coal provision or endorsement holes, driveways, man- covers the injury or damage holes, marquees, hoist for which this insurance ap- away openings, side- plies. walk vaults, street ban- ners or decorations and b. With respect to the insurance afford - similar exposures; or ed to the additional insureds de- scribed in Paragraph 8.a.(1) of this (ii) The construction, erec- endorsement, the following is added tion or removal of eleva- to Section III - Limits Of Insurance: tors; or The most we will pay on behalf of the (iii) The ownership, mainte- additional insured is the amount of in- nance or use of any el- surance: evators covered by this insurance. (1) Required by the written contract, written agreement, written permit or written authorization described Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 13 of 17 in Paragraph 8.a.(1) of this en- dorsement; or (2) Available under the applicable Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the applicable Limits of Insurance shown in the Declarations. c. Section IV - Commercial General Liability Conditions is amended to include the following: Automatic Additional Insured Pro- vision This insurance applies only if the "bodily injury" or "property damage" occurs, or the "personal and advertis- ing injury" offense is committed: (1) During the policy period; and (2) Subsequent to your execution of the written contract or written agreement, or the issuance of a written permit or written authori- zation, described in Paragraph 8.a.(1). d. Section IV - Commercial General Liability Conditions is amended as follows: Condition 5. Other Insurance is amended to include: Primary And Noncontributory In- surance This insurance is primary to and will not seek contribution from any other insurance available to an additional insured per Paragraph 8.a.(1) of this endorsement provided that: (1) The additional insured is a Named Insured under such other insurance; and (2) You have agreed in writing in a contract, agreement, permit or authorization described in 8.a.(2) of this endorsement that this in- surance would be primary and would not seek contribution from any other insurance available to the additional insured. 9. Property Damage To Borrowed Equip- ment a. The following is added to Exclusion 2.j. Damage To Property under Sec- tion I - Coverage A - Bodily Injury And Property Damage Liability: Paragraphs (3) and (4) of this exclu- sion do not apply to tools or equip- ment loaned to you, provided they are not being used to perform operations at the time of loss. b. With respect to the insurance provid- ed by this section of the endorse- ment, the following additional provi- sions apply: (1) The Limits of Insurance shown in the Declarations are replaced by the limits designated in Section B. Limits Of Insurance, 9. Property Damage To Borrowed Equipment of this endorsement with respect to coverage provid- ed by this endorsement. These limits are inclusive of and not in addition to the limits being re- placed. The Limits of Insurance shown in Section B. Limits Of Insurance, 9. Property Damage To Borrowed Equipment of this endorsement fix the most we will pay in any one "occurrence" re- gardless of the number of: (a) Insureds; (b) Claims made or "suits" brought; or (c) Persons or organizations making claims or bringing "suits". (2) Deductible Clause (a) Our obligation to pay dam- ages on your behalf applies only to the amount of dam- ages for each "occurrence" which are in excess of the Deductible Amount stated in Section B. Limits Of Insur- ance, 9. Property Damage To Borrowed Equipment of this endorsement. The limits of insurance will not be re- duced by the application of such deductible amount. (b) Section IV - Commercial General Liability Condi- tions, 2. Duties In The Event Of Occurrence, Of- fense, Claim Or Suit, ap- plies to each claim or "suit' irrespective of the amount. Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 14 of 17 (c) We may pay any part or all of the deductible amount to effect settlement of any claim or "suit' and, upon no- tification of the action taken, you shall promptly reim- burse us for such part of the deductible amount as has been paid by us. 10. Employees As Insureds - Specified Health Care Services And Good Samar- itan Services Paragraph 2.a.(1Xd) under Section II - Who Is An Insured does not apply to: a. Your "employees" who provide pro- fessional health care services on your behalf as a duly licensed nurse, emergency medical technician or paramedic in the jurisdiction where an "occurrence" or offense to which this insurance applies takes place; or b. Your "employees" or "volunteer work- ers", other than an employed or vol- unteer doctor, providing first aid or good samaritan services during their work hours for you will be deemed to be acting within the scope of their employment by you or performing du- ties related to the conduct of your business. 11. Broadened Notice Of Occurrence Paragraph a. of Condition 2. Duties In The Event Of Occurrence, Offense, Claim Or Suit under Section IV - Com- mercial General Liability Conditions is replaced by the following: a. You must see to it that we are notified as soon as practicable of an "occur- rence" or an offense which may result in a claim. To the extent possible, no- tice should include: (1) How, when and where the "oc- currence" or offense took place; (2) The names and addresses of any injured persons and wit- nesses; and (3) The nature and location of any iryury or damage arising out of the "occurrence" or offense. This requirement applies only when the "occurrence" or offense is known to an "authorized representative". 12. Nonowned Aircraft The following is added to Exclusion 2.g. Aircraft, Auto Or Watercraft under Sec- tion I - Coverage A - Bodily Injury And Property Damage Liability: This exclusion does not apply to an air- craft you do not own, provided that: a. The pilot in command holds a current effective certificate, issued by a duly constituted authority of the United States of America or Canada, desig- nating that person as a commercial or airline transport pilot; b. The aircraft is rented with a trained, paid crew; and c. The aircraft does not transport per- sons or cargo for a charge. 13. Bodily Injury Redefined Section V - Definitions, 4. "Bodily injury" is replaced by the following: 4. "Bodily injury' means bodily harm or injury, sickness, disease, disability, humiliation, shock, fright, mental an- guish or mental injury, including care, loss of services or death resulting from any of these at any time. 14. Expected Or Intended Injury Redefined The last sentence of Exclusion 2.a. Ex- pected Or Intended Injury under Sec- tion I - Coverage A - Bodily Injury And Property Damage Liability is replaced by the following: This exclusion does not apply to "bodily injury" or "property damage" resulting from the use of reasonable force to protect per- sons or property. 15. Former Employees As Insureds The following is added to Paragraph 2. under Section II -Who Is An Insured: 2. Each of the following is also an in- sured: Any of your former "employees", di- rectors, managers, members, part- ners or "executive officers", including but not limited to retired, disabled or those on leave of absence, but only for acts within the scope of their em- ployment by you or for duties related to the conduct of your business. Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with DTs permission. Page 15 of 17 16. Voluntary Property Damage Coverage a. Coverage D - Voluntary Property Damage Coverage Section I - Coverages is amended to include the following: GA 233 0917 (1) Insuring Agreement (a) We will pay the cost to re- pair or replace "property damage" to property of oth- ers arising out of operations incidental to your business when: 1) Damage is caused by you; or 2) Damage occurs while in your possession. At your written request, we will make this payment re- gardless of whether you are at fault for the "property damage". If you, at our request, re- place, or make any repairs to, damaged property of others, the amount we will pay under Voluntary Prop- erty Damage Coverage will be determined by your actu- al cost to replace or repair the damaged property, ex- cluding any profit or over- head. Any payment we make un- der Voluntary Property Damage Coverage shall not be interpreted as an admis- sion of liability by you or by us. It shall be your duty, not our duty, to defend any claim or "suit' to which this insurance applies. No other obligation or liabil- ity to pay sums or perform acts or services is covered. (b) This insurance applies to 'property damage" only if 1) The "property damage" takes place in the "cov- erage territory'; and (2) Exclusions This insurance does not apply to "property damage" that would be excluded by Coverage A - Bodi- ly Injury And Property Damage Liability, 2. Exclusions, except for j. Damage To Property, par- agraphs (3), (4), (5) and (6), k. Damage To Your Product, and I. Damage To Your Work. (3) Definitions For purposes of Voluntary Property Damage Coverage only, the following definitions un- der Section V - Definitions are replaced by the following: 16. "Occurrence" means an in- cident, including continuous or repeated exposure to substantially the same gen- eral harmful conditions that result in "property damage". 20. "Property damage" means physical injury to tangible property. "Electronic data" is not tangible property, and "property damage" does not include disappearance, ab- straction or theft. b. Care, Custody Or Control Liability Coverage For purposes of the coverage provid- ed by Care, Custody Or Control Li- ability Coverage in this endorsement only: (1) Section I - Coverage A - Bodily Injury And Property Damage Liability, 2. Exclusions, j. Damage To Property, Subpara- graphs (3), (4) and (5) do not ap- ply to 'property damage" to the property of others described therein. (2) It shall be your duty, not our duty, to defend any claim or "suit" to which this insurance applies. No other obligation or liability to pay sums or perform acts or ser- vices is covered. This Paragraph (2) supersedes any provision in the Coverage Part to the contrary. 2) The "property damage" occurs during the policy (3) "Property damage" for which period. Care, Custody Or Control Lia- bility Coverage provides cover - Includes copyrighted material of Insurance Services Office, Inc., with its permission. Page 16 of 17 age shall be deemed to be (3) The Voluntary Property Dam - caused by an "occurrence" but age Coverage, Aggregate Limit shall not serve to limit or restrict Of Insurance is the most we will the applicability of any exclusion pay for the sum of all damages for "property damage" under this under Voluntary Property Coverage Part. Damage Coverage. This limit applies separately to each "cov- c. Limits Of Insurance And Deducti- erage term". bles (4) Deductible Clause For purposes of the coverage provid- ed by Voluntary Property Damage (a) Our obligation to pay dam - Coverage and Care, Custody Or ages on your behalf applies Control Liability Coverage, Section only to the amount of dam - III - Limits Of Insurance is amended ages for each "occurrence" to include the following: which are in excess of the Deductible Amount stated 1 The Limits of Insurance shown in ( ) for the applicable coverage the Dedarations are replaced by in the Schedule. The limits the limits designated in Section of insurance will not be re - B. Limits Of Insurance, 16. duced by the application of Voluntary Property Damage such Deductible Amount. Coverage And Care, Custody Or Control Liability Coverage, (b) Section IV - Commercial in this endorsement. These limits General Liability Condi- are inclusive of, and not in addi- tions, 2. Duties In The tion to, the limits being replaced. Event Of Occurrence, Of - The Limits of Insurance shown in fense, Claim Or Suit, ap- the Schedule fix the most we will plies to each claim or "suit' pay regardless of the number of: irrespective of the amount. (a) Insureds; (c) We may pay any part or all of the Deductible Amount to b Claims made or "suits" (b) effect settlement of any brought; or claim or "suit' and, upon no - (c) Persons or organizations tification of the action taken, making claims or bringing you shall promptly reim- "suits". burse us for such part of the Deductible Amount as has (2) (a) Subject to (3) below, the been paid by us. Voluntary Property Dam- age Coverage, Each Occur- 17. Broadened Contractual Liability - Work rence Limit Of Insurance is Within 50 Of Railroad Property the most we will pay for the Section V - Definitions, 12. "Insured con - sum of damages under Vol- tract" is amended as follows: untary Property Damage Coverage; a. Paragraph c. is replaced by the fol- lowing: (b) The Care, Custody Or Con- trol Liability Coverage, c. Any easement or license agree - Each Occurrence Limit Of ment; Insurance is the most we will pay for the sum of damages b. Paragraph f.(1) is deleted in its entire - under Care, Custody Or ty. Control Liability Coverage; 18. Alienated Premises because of all "property damage" Exclusion 2j. Damage to Property, arising out of any one "occur- Paragraph (2) under Section I - Cover- rence". age A - Bodily Injury And Property Damage Liability does not apply if the premises are 'your work". Includes copyrighted material of Insurance GA 233 0917 Services Office, Inc., with its permission. Page 17 of 17 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. CinciPlus® BUSINESS AUTO XC+® (EXPANDED COVERAGE PLUS) ENDORSEMENT This endorsement modifies insurance provided by the following: BUSINESS AUTO COVERAGE FORM With respect to the coverage provided by this endorsement, the provisions of the Coverage Form apply unless modified by this endorsement. A. Blanket Waiver of Subrogation SECTION IV - BUSINESS AUTO CONDI- TIONS, A. Loss Conditions, 5. Transfer of Rights of Recovery Against Others to Us is amended by the addition of the following: We waive any right of recovery we may have against any person or organization because of payments we make for 'bodily injury" or "property damage" arising out of the operation of a covered "auto" when you have assumed liability for such "bodily injury" or "property damage" under an "insured contract", provid- ed the "bodily injury" or "property damage" oc- curs subsequent to the execution or the "in- sured contract". B. Noncontributory Insurance SECTION IV - BUSINESS AUTO CONDI- TIONS, B. General Conditions, 5. Other In- surance c. is replaced by the following: c. Regardless of the provisions of Par- agraph a. above, this Coverage Form's Liability Coverage is primary and we will not seek contribution from any other insurance for any lia- bility assumed under an "insured contract" that requires liability to be assumed on a primary noncontributo- ry basis. C. Additional Insured by Contract SECTION II - LIABILITY COVERAGE, A. Coverage, I. Who is an Insured is amended to include as an insured any person or organi- zation with which you have agreed in a valid written contract to provide insurance as is af- forded by this policy. This provision is limited to the scope of the valid written contract. This provision does not apply unless the valid written contract has been: 1. Executed prior to the accident causing "bodily injury' or "property damage"; and 2. Is still in force at the time of the "accident' causing "bodily injury" or "property dam- age". D. Employee Hired Auto 1. Changes in Liability Coverage The following is added to the Section 1I - Liability Coverage, A. Coverage, 1. Who is an Insured: An "employee" of yours is an "insured" while operating an "auto" hired or rented under a contract or agreement in that "employee's" name, with your permission, while performing duties related to the conduct of your business. 2. Changes in General Conditions SECTION IV - BUSINESS AUTO CON- DITIONS, B. General Conditions, 5. Other Insurance is amended by replac- ing Paragraph 5.b. with the following: b. For Hired Auto Physical Damage Coverage the following are deemed to be covered "autos" you own: (1) Any covered "auto" you lease, hire, rent or borrow; and (2) Any covered "auto" hired or rented by your "employee" under a contract in that individual "em- ployee's" name, with your per- mission, while performing duties related to the conduct of your business. Includes copyrighted material of ISO AA 288 0116 Properties, Inc., with its permission. Page 1 of 4 However, any "auto" that is leased, hired, rented or borrowed with a driver is not a covered "auto". E. Audio, Visual and Data Electronic Equip- ment SECTION III - PHYSICAL DAMAGE COV- ERAGE, C. Limit of Insurance is amended by adding the following: 4. The most we will pay for all "loss" to au- dio, visual or data electronic equipment and any accessories used with this equipment as a result of any one "acci- dent" is the lesser of a. The actual cash value of the dam- aged or stolen property as of the time of the "accident"; b. The cost of repairing or replacing the damaged or stolen property with oth- er property of like kind and quality; or C. $2,500. Provided the equipment, at the time of the "loss" is: a. Permanently installed in or upon the covered "auto" in a housing, opening or other location that is not normally used by the "auto" manufacturer for the installation of such equipment; b. Removable from a permanently in- stalled housing unit as described in Paragraph 2.a. above; or c. An integral part of such equipment. F. Who is an Insured - Amended SECTION II - LIABILITY COVERAGE, A. Coverage, 1. Who is an Insured is amended by adding the following: The following are "insureds": 1. Any subsidiary which is a legally incorpo- rated entity of which you own a financial interest of more than 50% of the voting stock on the effective date of this cover- age form. However, the insurance afforded by this provision does not apply to any subsidiary that is an "insured" under any other au- tomobile liability policy, or would be an "insured" under such policy but for termi- nation of such policy or the exhaustion of such policy's limits of insurance. 2. Any organization that is newly acquired or formed by you and over which you main- tain majority ownership. The insurance provided by this provision: a. Is effective on the date of acquisition or formation, and is afforded for 180 days after such date; b. Does not apply to "bodily injury' or "property damage" resulting from an "accident" that occurred before you acquired or formed the organization; c. Does not apply to any newly acquired or formed organization that is a joint venture or partnership; and d. Does not apply to an insured under any other automobile liability policy, or would be an insured under such a policy but for the termination of such policy or the exhaustion of such poli- cy's limits of insurance. 3. Any of your "employees" while using a covered "auto" in your business or your personal affairs, provided you do not own, hire or borrow that "auto". G. Liability Coverage Extensions - Supple- mentary Payments - Higher Limits SECTION II - LIABILITY COVERAGE, A. Coverage, 2. Coverage Extensions, a. Sup- plementary Payments is amended by: 1. Replacing the $2,000 Limit of Insurance for bail bonds with $4,000 in (2); and 2. Replacing the $250 Limit of Insurance for reasonable expenses with $500 in (4). H. Amended Fellow Employee Exclusion SECTION 11 - LIABILITY COVERAGE, B. Ex- clusions, 5. Fellow Employee is modified as follows: Exclusion 5. Fellow Employee is deleted. I. Hired Auto - Physical Damage If hired "autos" are covered "autos" for Liability Coverage, then Comprehensive and Collision Physical Damage Coverages as provided un- der SECTION III - PHYSICAL DAMAGE COVERAGE of this Coverage Part are ex- tended to "autos" you hire, subject to the fol- lowing: 1. The most we will pay for "loss" to any hired "auto" is $50,000 or the actual cash value or cost to repair or replace, which- ever is the least, minus a deductible. 2. The deductible will be equal to the largest deductible applicable to any owned "auto" for that coverage, or $1,000, whichever is less. 3. Hired Auto - Physical Damage coverage is excess over any other collectible insur- ance. Includes copyrighted material of ISO AA 288 01 16 Properties, Inc., with its permission. Page 2 of 4 4. Subject to the above limit, deductible, and excess provisions we will provide cover- age equal to the broadest coverage appli- cable to any covered "auto" you own in- sured under this policy. Coverage includes loss of use of that hired au- to, provided it results from an "accident" for which you are legally liable and as a result of which a monetary loss is sustained by the leasing or rental concern. The most we will pay for any one "accident" is $3,000. If a limit for Hired Auto - Physical Damage is shown in the Schedule, then that limit replac- es, and is not added to, the $50,000 limit indi- cated above. J. Rental Reimbursement SECTION III - PHYSICAL DAMAGE is amended by adding the following: We will pay for rental reimbursement ex- penses incurred by you for the rental of an "auto" because of a "loss" to a covered "auto". Payment applies in addition to the otherwise applicable amount of each cov- erage you have on a covered "auto". No deductible applies to this coverage. 2. We will pay only for those expenses in- curred during the policy period beginning 24 hours after the "loss" and ending, re- gardless of the policy's expiration, with the lesser of the following number of days: a. The number of days reasonably re- quired to repair the covered "auto". If "loss" is caused by theft, this number of days is added to the number of days it takes to locate the covered "auto" and return it to you; or b. 30 days. 3. Our payment is limited to the lesser of the following amounts: a. Necessary and actual expenses in- curred; or b. $50 per day. 4. This coverage does not apply while there are spare or reserve "autos" available to you for your operations. K. Transportation Expense - Higher Limits SECTION III - PHYSICAL DAMAGE COV- ERAGE, A. Coverage, 4. Coverage Exten- sions is amended by replacing $20 per day with $50 per day, and $600 maximum with $1,500 maximum in Extension a. Transpor- tation Expenses. L. Airbag Coverage SECTION III - PHYSICAL DAMAGE COV- ERAGE, B. Exclusions, 3.a. is amended by adding the following: However, the mechanical and electrical breakdown portion of this exclusion does not apply to the accidental discharge of an airbag. This coverage for airbags is excess over any other collectible insurance or warranty. M. Loan or Lease Gap Coverage SECTION III - PHYSICAL DAMAGE COVERAGE, C. Limit of Insurance is deleted in its entirety and replaced by the following, but only for private passenger type "autos" with an original loan or lease, and only in the event of a "total loss" to such a private passenger type "auto": a. The most we will pay for "loss" in any one "accident" is the greater of: (1) The amount due under the terms of the lease or loan to which your covered private passenger type "auto" is subject, but will not include: (a) Overdue lease or loan pay- ments; (b) Financial penalties imposed under the lease due to high mileage, excessive use or abnormal wear and tear; (c) Security deposits not re- funded by the lessor; (d) Costs for extended warran- ties, Credit Life Insurance, Health, Accident or Disabil- ity Insurance purchased with the loan or lease; and (e) Carry-over balances from previous loans or leases, or 5. We will pay under this coverage only that amount of your rental reimbursement ex- (2) Actual cash value of the stolen penses which is not already provided for or damaged property. under SECTION III - PHYSICAL DAM- b. An adjustment for depreciation and AGE COVERAGE, A. Coverage, 4. physical condition will be made in de - Coverage Extensions. termining actual cash value at the time of "loss". Includes copyrighted material of ISO AA 288 0116 Properties, Inc., with its permission. Page 3 of 4 2. SECTION V - DEFINITIONS is amended by adding the following, but only for the purposes of this Loan or Lease Gap Coverage: "Total loss" means a "loss" in which the cost of repairs plus the salvage value ex- ceeds the actual cash value. N. Glass Repair - Waiver of Deductible SECTION III - PHYSICAL DAMAGE COV- ERAGE, D. Deductible is amended by adding the following: No deductible applies to glass damage if the glass is repaired in a manner acceptable to us rather than replaced. O. Duties in the Event of an Accident, Claim, Suit or Loss - Amended SECTION IV - BUSINESS AUTO CONDI- TIONS, A. Loss Conditions, 2. Duties in the Event of Accident, Claim, Suit or Loss, a. is amended by adding the following: This condition applies only when the "accl- dent"or'loss" is known to: 1. You, if you are an individual; 2. A partner, if you are a partnership; 3. An executive officer or insurance manag- er, if you are a corporation; or 4. A member or manager, if you are a lim- ited liability company. P. Unintentional Failure to Disclose Hazards SECTION IV - BUSINESS AUTO CONDI- TIONS, B. General Conditions, 2. Conceal- ment, Misrepresentation or Fraud is amended by adding the following: However, if you unintentionally fail to disclose any hazards existing on the effective date of this Coverage Form, we will not deny cover- age under this Coverage Form because of such failure. Q. Mental Anguish Resulting from Bodily Inju- ry SECTION V - DEFINITIONS, C. "Bodily inju- ry" is deleted in its entirety and replaced by the following: "Bodily injury" means bodily injury, sickness or disease sustained by a person, including men- tal anguish and death sustained by the same person that results from such bodily injury, sickness or disease. "Bodily injury" does not include mental anguish or death that does not result from bodily injury, sickness or disease. R. Coverage for Certain Operations in Con- nection with Railroads With respect to the use of a covered "auto" in operations for or affecting a railroad: 1. Section V - Definitions, H. "Insured con- tract", 1.c. is amended to read: c. An easement or license agreement; 2. Section V - Definitions, H. "Insured con- tract", 2.a. is deleted. Includes copyrighted material of ISO AA 288 01 16 Properties, Inc., with its permission. Page 4 of 4 THIS ENDORSEMENT CHANGES THE POLICY. PLEASE READ IT CAREFULLY. CONTRACTORS ADDITIONAL INSURED - AUTOMATIC STATUS AND AUTOMATIC WAIVER OF SUBROGATION WHEN REQUIRED IN WRITTEN CONTRACT, AGREEMENT, PERMIT OR AUTHORIZATION This endorsement modifies insurance provided under the following: COMMERCIAL GENERAL LIABILITY COVERAGE PART A. Additional Insured - Owners, Lessees Or Contractors - Automatic Status For Other Parties When Required In Written Contract Or Agreement With You 1. Section II - Who Is An Insured is amended to include as an additional in- sured any person or organization you have agreed in writing in a contract or agreement to add as an additional in- sured on this Coverage Part. Such per- son(s) or organization(s) is an additional insured only with respect to liability for: a. "Bodily injury', "property damage" or "personal and advertising injury" caused, in whole or in part, by the performance of your ongoing opera- tions by you or on your behalf, under that written contract or written agreement. Ongoing operations does not apply to 'bodily injury" or "proper- ty damage" occurring after: (1) All work, including materials, parts or equipment furnished in connection with such work, on the project (other than service, maintenance or repairs) to be performed by or on behalf of the additional insured(s) at the loca- tion of the covered operations has been completed; or (2) That portion of "your work" out of which the injury or damage aris- es has been put to its intended use by any person or organiza- tion other than another contrac- tor or subcontractor engaged in performing operations for a prin- cipal as a part of the same pro- ject; and b. "Bodily injury' or "property damage" caused, in whole or in part, by "your work" performed under that written contract or written agreement and in cluded in the "products -completed operations hazard", but only if: (1) The Coverage Part to which this endorsement is attached pro- vides coverage for "bodily injury" or "property damage" included within the "products -completed operations hazard"; and (2) The written contract or written agreement requires you to pro- vide additional insured coverage included within the "products - completed operations hazard" for that person or organization. If the written contract or written agreement requires you to provide additional insured coverage included within the 'products -completed oper- ations hazard" for a specified length of time for that person or organiza- tion, the "bodily injury" or "property damage" must occur prior to the ex- piration of that period of time in order for this insurance to apply. If the written contract or written agreement requires you to provide additional insured coverage for a person or organization per only ISO additional insured endorsement form number CG 20 10, without specifying an edition date, and without specifi- cally requiring additional insured coverage included within the "prod- ucts -completed operations hazard", this Paragraph b. does not apply to that person or organization. 2. If the written contract or written agree- ment described in Paragraph 1. above specifically requires you to provide addi- tional insured coverage to that person or organization: a. Arising out of your ongoing opera- tions or arising out of'your work"; or Includes copyrighted material of Insurance GA 47209 18 Services Office, Inc., with its permission. Page 1 of 3 b. By way of an edition of an ISO addi- tional insured endorsement that in- cludes arising out of your ongoing operations or arising out of "your work"; then the phrase caused, in whole or in part, by in Paragraph A.1.a. and/or Para- graph A.1.b. above, whichever applies, is replaced by the phrase arising out of. 3. With respect to the insurance afforded to the additional insureds described in Para- graph Al., the following additional exclu- sion applies: This insurance does not apply to "bodily injury', "property damage" or "personal and advertising injury" arising out of the rendering of, or the failure to render, any professional architectural, engineering or surveying services, including: a. The preparing, approving or failing to prepare or approve, maps, shop drawings, opinions, reports, surveys, field orders, change orders or draw- ings and specifications; or b. Supervisory, inspection, architectural or engineering activities. This exclusion applies even if the claims against any insured allege negligence or other wrongdoing in the supervision, hir- ing, employment, training or monitoring of others by that insured, if the "occurrence" which caused the "bodily injury" or "prop- erty damage", or the offense which caused the "personal and advertising inju- ry", involved the rendering of, or the fail- ure to render, any professional architec- tural, engineering or surveying services. 4. This Paragraph A. does not apply to addi- tional insureds described in Paragraph B. B. Additional Insured - State Or Governmental Agency Or Subdivision Or Political Subdi- vision - Automatic Status When Required In Written Permits Or Authorizations I. Section II - Who Is An Insured is amended to include as an additional in- sured any state or governmental agency or subdivision or political subdivision you have agreed in writing in a contract, agreement, permit or authorization to add as an additional insured on this Coverage Part. Such state or governmental agency or subdivision or political subdivision is an additional insured only with respect to op- erations performed by you or on your be- half for which the state or governmental agency or subdivision or political subdivi- sion issued, in writing, a contract, agree- ment, permit or authorization. 2. With respect to the insurance afforded to the additional insureds described in Para- graph B.1., the following additional exclu- sions apply: This insurance does not apply to: a. "Bodily injury', "property damage" or "personal and advertising injury" aris- ing out of operations performed for the federal government, state or mu- nicipality; or b. "Bodily injury' or "property damage" included within the "products - completed operations hazard." C. The insurance afforded to additional insureds described in Paragraphs A. and B.: 1. Only applies to the extent permitted by law, and 2. Will not be broader than that which you are required by the written contract, writ- ten agreement, written permit or written authorization to provide for such addition- al insured; and 3. Does not apply to any person, organiza- tion, state, governmental agency or sub- division or political subdivision specifically named as an additional insured for the same project in the schedule of an en- dorsement added to this Coverage Part. D. With respect to the insurance afforded to the additional insureds described in Paragraphs A. and B., the following is added to Section III - Limits Of Insurance: The most we will pay on behalf of the addi- tional insured is the amount of insurance: 1. Required by the written contract, written agreement, written permit or written au- thorization described in Paragraphs A. and B.; or 2. Available under the applicable Limits of Insurance shown in the Declarations; whichever is less. This endorsement shall not increase the appli- cable Limits of Insurance shown in the Decla- rations. E. Section IV - Commercial General Liability Conditions is amended to add the following: Automatic Additional Insured Provision This insurance applies only if the "bodily inju- ry" or "property damage" occurs, or the "per- sonal and advertising injury' offense is com- mitted: 1. During the policy period; and Includes copyrighted material of Insurance GA 47209 18 Services Office, Inc., with its permission. Page 2 of 3 2. Subsequent to your execution of the writ- ten contract or written agreement, or the issuance of a written permit or written au- thorization, described in Paragraphs A. and B. F. Except when G. below applies, the following is added to Section IV - Commercial General Liability Conditions, 5. Other Insurance, and supersedes any provision to the contrary: When Other Additional Insured Coverage Applies On An Excess Basis This insurance is primary to other insurance available to the additional insured described in Paragraphs A. and B. except: 1. As otherwise provided in Section IV - Commercial General Liability Condi- tions, 5. Other Insurance, b. Excess In- surance; or 2. For any other valid and collectible insur- ance available to the additional insured as an additional insured by attachment of an endorsement to another insurance policy that is written on an excess basis. In such case, this insurance is also excess. H. G. The following is added to Section IV - Com- mercial General Liability Conditions, 5. Other Insurance, and supersedes any provi- sion to the contrary: Primary Insurance When Required By Writ- ten Contract, Agreement, Permit Or Au- thorization Except when wrap-up insurance applies to the claim or "suit' on behalf of the additional in- sured, this insurance is primary to any other insurance available to the additional insured described in Paragraphs A. and B. provided that: The additional insured is a Named In- sured under such other insurance; and 2. You have agreed in writing in a contract, agreement, permit or authorization de- scribed in Paragraph A. or B. that this in- surance would be primary to any other in- surance available to the additional in- sured. As used in this endorsement, wrap-up insur- ance means any insurance provided by a con- solidated (wrap-up) insurance program. Primary And Noncontributory Insurance When Required By Written Contract, Agreement, Permit Or Authorization Except when wrap-up insurance applies to the claim or "suit' on behalf of the additional in- sured, this insurance is primary to and will not seek contribution from any other insurance available to the additional insured described in Paragraphs A. and B. provided that: 1. The additional insured is a Named In- sured under such other insurance; and 2. You have agreed in writing in a contract, agreement, permit or authorization de- scribed in Paragraph A. or B. that this in- surance would be primary and would not seek contribution from any other insur- ance available to the additional insured. As used in this endorsement, wrap-up insur- ance means any insurance provided by a con- solidated (wrap-up) insurance program. Section IV - Commercial General Liability Conditions, 9. Transfer Of Rights Of Re- covery Against Others To Us is amended by the addition of the following: We waive any right of recovery we may have against any additional insured under this en- dorsement against whom you have agreed to waive such right of recovery in a written con- tract, written agreement, written permit or writ- ten authorization because of payments we make for injury or damage arising out of your ongoing operations or "your work" done under a written contract, written agreement, written permit or written authorization. However, our rights may only be waived prior to the "occur- rence" giving rise to the injury or damage for which we make payment under this Coverage Part. The insured must do nothing after a loss to impair our rights. At our request, the insured will bring "suit' or transfer those rights to us and help us enforce those rights. Includes copyrighted material of Insurance GA 47209 18 Services Office, Inc., with its permission. Page 3 of 3 PERFORMANCE BOND Bond # BND1009123-00 (PAGE 1 OF 2) PROJECT DESCRIPTION: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) KNOW ALL MEN BY THE PRESENTS; that L4 Construction. LLC DBA L4 Environmental (Name of Contractor) 13 Dos Rios Greeley, CO 80634 (Address of Contractor) Corporation , hereinafter called Contractor, and a (Corporation, Partnership, or Individual) Fair American Insurance and Reinsurance Company (Name of Surety) 365 Northridge Rd Ste 250 Atlanta, GA 30350 (Address of Surety) hereinafter called surety, are held and firmly bound unto Weld County. Colorado (Name of Owner) P.O. Box 758 1111 H Street Greeley Colorado 80632 (Address of Owner) One Million Eight Hundred Fifty Two, hereinafter called Owner, in the penal sum of One Hundred Twenty and 001100 Dollars, (s 1,852,120.00 _____). in lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, successors and assigns, jointly and severally firmly by these presents. THE CONDITION OF THIS OBLIGATION is such that whereas, the Contractor entered into a certain Contract with the Owner, dated the 27th day of December 2021, a copy of which is hereto attached and made a part hereof for the construction of: PW STORMWATER IMPROVEMENTS PROJECT described in the Invitation for Bids, Bid No. B2100076. NOW THEREFORE, if the Contractor shall well, truly and faithfully perform its duties, all of the undertakings, covenants, terms, conditions, and agreements of said contract during the original term thereof, and any extensions thereof which may be granted by the Owner, with or without notice to the Surety and during the one year guaranty period, and if he shall satisfy all claims and demands incurred under such contract, and shall fully indemnify and save harmless the Owner from all costs and damages which it may suffer by reason of failure to do so, and shall reimburse and repay the Owner all outlay and expense which the Owner may incur in making good any default, then this obligation shall be void; otherwise to remain in force and effect. PROVIDED, FURTHER, that the said Surety for value received hereby stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract or to the Work to be performed thereunder of the Specifications accompanying the same shall in any way affect its obligation on this Bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the contract or to the Work or to the Specifications. 351Page PERFORMANCE BOND (PAGE 2 OF 2) PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) PROVIDED, FURTHER, that no final settlement between the Owner and the Contractor shall abridge the right of any beneficiary hereunder, whose claim may be unsatisfied. IN WITNESS WHEREOF, this instrument is executed in two (2) counterparts, each one of which shall be deemed an original, this 28th day of December , 2021. L4 Construction, LLC DBA L4 Environmental Contractor L %ui.i1it By (C tractor) ecreta (SEAL) 9l';�' SEAL 13 Dos Rios "s (Address) ' • •••••'''p Greeley, CO 80634��'c�,�RP0 Secretary (SEAL) Fair American Insurance and Reinsurance Company Stefan E. Tauger Attorney -in -Fact 365 Northridge Rd Ste 250 (Address) Atlanta. GA 30350 By NOTE: Date of Bond must not be prior to date of Contract. If Contractor is Partnership, all partners should execute Bond. IMPORTANT: Surety companies executing Bonds must appear on the Treasury Department's most current list (Circular 570 as amended) and be authorized to transact business in the State where the Project is located. 36 1 P a g e LABOR & MATERIALS PAYMENT BOND Bond # BND1009123-00 (PAGE 1 OF 2) PROJECT: PW STORMWATER IMRPROVEMENTS KNOW ALL MEN BY THE PRESENTS; that L4 Construction, LLC DBA L4 Environmental (Name of Contractor) 13 Dos Rios Greeley, CO 80634 (Address of Contractor) hereinafter called Contractor, and a (Corporation, Partnership, or Individual) Fair American Insurance and Reinsurance Company (Name of Surety) 365 Northridge Rd Ste 250 Atlanta, GA 30350 (Address of Surety) hereinafter called surety, are held and firmly bound unto Weld County. Colorado (Name of Owner) P.O. Box 758, 1111 H Street Greeley, Colorado 80632 (Address of Owner) One Million Eight Hundred Fifty Two, One Hundred Twenty and 00/100 1 852 120.00 hereinafter called Owner, in the penal sum of Dollars ($ in lawful money of the United States of America, for the payment of which sum well and truly to be made, we bind ourselves, successors and assigns, jointly and severally firmly by these presents. THE CONDITION OF THIS OBLIGATION is such that whereas, the Contractor entered into a certain Contract with the Owner, dated the 27th day of December , 2021, a copy of which is hereto attached and made a part hereof for the construction of: PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B2100076) NOW, THEREFORE, if the Contractor shall promptly make payment to all persons, firms, Subcontractors, and corporations furnishing materials for or performing labor in the prosecution of the Work provided for in such contract, and any authorized extension or modification thereof, including all amounts due for materials, lubricants, oil, gasoline, repairs on machinery, equipment and tools, consumed or used in connection with the construction of such Work, and all insurance premiums on said Work, and for all labor, performed in such Work whether by Subcontractor or otherwise, then this obligation shall be void,; otherwise to remain in full force and effect. PROVIDED, FURTHER, that the said Surety for value received hereby stipulates and agrees that no change, extension of time, alteration or addition to the terms of the contract or to the Work to be performed thereunder of the Specifications accompanying the same shall in any way affect its obligation on this Bond, and it does hereby waive notice of any such change, extension of time, alteration or addition to the terms of the Contract or to the Work or to the Specifications. 37IPage LABOR & MATERIALS PAYMENT BOND (PAGE 2 OF 2) PROJECT: PUBLIC WORKS STORMWATER IMPROVEMENTS (B21 00076) PROVIDED, FURTHER, that no final settlement between the Owner and the Contractor shall abridge the right of any beneficiary hereunder, whose claim may be unsatisfied. IN WITNESS WHEREOF, this instrument is executed in two (2) counterparts, each one of which shall be deemed an original, this 28th day of December , 2021. L4 Construction, LLC DBA L4 Environmental N Contractor m By `"-- r k-rn.A iWa C - (SEAL) witness as to c;opjrsci 13 Dos Rios LAL (Address) Greeley, CO 80634 STT, Secretary Fair American Insurance and Reinsurance Company (SEA!,,) By e as to Surety A ey-in-Fact Stefan E. Tauger 65 Northridge Rd Ste 250 Atlanta, GA 30350 (Address) NOTE: Date of Bond must not be prior to date of Contract. If Contractor is Partnership, all partners shall execute Bond. IMPORTANT: Surety companies executing Bonds must appear on the Treasury Department's most current list (Circular 570 as amended) and be authorized to transact business in the State where the Project is located. 38IPage V AA p d 3.i•.:=: AN Q2 �' NQ §f Ir�y■/I��l,.� ■/1�j 1 a t uIP Y 9, s POWER OF ATTORNEY ttadrrade. men a ;hand bye intloesmake. ctafr n� t d vita 'a, ; Stefan E. Taugerof Parker, Colorado; Arthur S. Johnson of Atlanta, Georgia; James E. Feldner of West Lake. Ohio; Jeffery L Booth of Blla��(cli, . M J Stokes , A R Brett Col�r�blaSo�uth t E $ Hof firming,, = Ta� Johnst� Ora; Oma alend Pa '3Ka as iif Ule - vy, ACI•t as Its true and al h n-fac t to sign, execute, seal, deliver for, and cn behalf of the said Company, a as its act and deed any place in the United States any and all surety, bonds, undertakings, recognizances and contracts of our tyship to be given to all opli i f Via? rtd �e�Ci or 4n o e'artx!ted sunder ink' of tin „ ed ,too (Ftv k Prylih� at6�nttua aote net er►�nd they to 6n1dy eept inane nnnet lire o�Niditai herein. fi This POW of _1B ra and is srgne�d a s,"ledd facniimrle t ter and the aI of tyre Resoiutfone adopted r0q due t�lrelard of in Fpr"y °n�fhe , 20i �. v 3 • s. g; .[ b z :..'l .Ta r y, Y3 'A. ks� -,/_" t `.H .r ,' i : _° Y RESOLVED, that the President, crat`mran, or any Senior Vice President or Vide Pr eshnt of the Company; In conjunction with any Senior Vice President or Vice President be, and that each or any of them hereby Is, authorized to appoint Attorneys -in -fact of the Company as m beet baof a,stq metsa� E suy a0 bide;` of oitet s E₹ in bk have��ll poem to bind COn"'g" it sign afrrf mgdt insdcnnenre and to attach thereto the seal of the Company. When so executed such insln.iments shall be as binding as If signed by the Pred�and aEd�tr�s S'►• Ultt RE N Powe l#oeynrCertified Copies of audillrs of AUOmeynCettjfon in respect therreto, granted and executed by the President or Senor Vice President, in cor4uncdon wbh aryl Senior Vioe President President of line Company, shaft be binding on the Company to the same extent as If all signatures therein were manually attixed, even though one 3y1 `flf more�rfany 8U£ snatire may blsfaralmlle riff WITNESS WHEFtEOF rnpany has causeditsofficiat aes�i`to be i,erete atli≥aed and use presents to 'sea viidh its corporate seal and duty attested to by these Senior Vice Presidents this 7th day of January2020 ti Y:, �� • Fair a .. .F . �'Y'•�� Qa � $' F.- ..�A, y yna . , � 3 a ?F..` a -uw^,a _,. tiw.av iE J 8` . t'I t r Chit Gwen, Vice President 31iI'T °.r .. -3 "Y Suzy enkx re e New Contract Request Entity Information Entity Name* L4 CONSTRUCTION LLC Contract Name * PIN STORMWATER IMPROVEMENTS Contract Status CTB REVIEW Entity ID* 9,00039420 ❑ New Entity? Contract ID 5513 Contract Lead* LHOLBROOK Contract Lead Email lholbrook eldgov.corn Contract Description CONSTRUCTION OF WATER QUALITY PONDS IN COMPLIANCE WITH MS4 REQUIREMENTS. Contract Description 2 Parent Contract ID Requires Board Approval YES Department Project # Contract Type* Department Requested BOCC Agenda Due Date CONTRACT PUBLIC WORKS Date* 01 13/2022 01:177022 Amount* Department Email $1,852,120.00 CM- Will a work session with BOCC be required?* PubfcWorks )weldgov.com NO Renewable NO Department Head Entail Does Contract require Purchasing Dept to be included? CM-PublicWorks- NO Automatic Renewal DeptHeadtieldgov.com Grant County Attorney BOB CHOATE ICA County Attorney Email BCHOATE,' CO.WELD.CO.US if this is a renewal enter previous Contract ID If this is part of a MSA enter MSA Contract ID Note: the Previous Contract Number and Master Services Agreement Number should be left blank if those contracts are not in OnBase Contract Dates Effective Date Review Date * Renewal Date 05162022 Termination Notice Period Committed Delivery Date Expiration Date* 06'21x2022 Contact Information Contact Info Contact Name Purchasing Purchasing Approver Approval Process Department Head JAY MCDONALD DH Approved Date 0111/2022 Final Approval BOCC Approved BOCC Signed Date BOCC Agenda Date 01172022 Originator LHOLBROOK Contact Type Contact Email Contact Phone 1 Contact Phone 2 Purchasing Approved Date Finance Approver CHRIS D'OVIDJO Finance Approved Date 01ill ;2022 Tyler Ref # AG 011722 Legal Counsel ROB CHOATE Legal Counsel Approved Date 01 : 1 1 2022 December 15, 2021 PUBLIC WORKS DEPARTMENT 1111 H STREET, P.O. BOX 758 GREELEY, COLORADO 80632 WEBSITE: www.weldgov.com PHONE: (970) 304-6496 FAX: (970) 304-6497 To: Board of County Commissioners From: Lyndsay Holbrook Subject: PW Stormwater Improvements; B2100076 In 2021, Public Works completed the design of a Public Works Master Drainage Plan for redevelopment of the site to be in compliance with MS4 stormwater treatment requirements. The plan details a series of stormwater improvements that will convey and treat stormwater runoff from the Public Works campus and the adjacent fuel site prior to discharging to the Cache la Poudre River. On November 3rd, a Request For Proposal (RFP) for the construction of these stormwater improvements was advertised and bids were due on December 8th. Public Works received four responsive bids ranging from $1,852,120 to $3,270,215, with the lowest responsive bidder being L4 Environmental. Public Works recommends awarding the bid to L4 Environmental in the amount of $1,852,120. The anticipated completion date for this project is May 31, 2022. If you have any questions, please contact me at extension 3788. Sincerely, Lyndsay Holbrook MS4 Administrator Z0ZI-33�$` WELD COUNTY PURCHASING 1150 O Street, Room #107, Greeley, CO 80631 E -Mail: cmpeters(c�weldgov.com E-mail: reverett(-weldgov.com E-mail: rturf(c�weldgov.com Phone: (970) 400-4223, 4222 or 4216 DATE OF BID: DECEMBER 8, 2021 REQUEST FOR: PUBLIC WORKS STORM IMPROVEMENTS PROJECT DEPARTMENT: PUBLIC WORKS BID NO: B2100076 PRESENT DATE: DECEMBER 13, 2021 APPROVAL DATE: DECEMBER 27, 2021 VENDORS TOTAL L4 CONSTRUCTION $1,852,120.00 DBA: L4 ENVIRONMENTAL 13 DOS RIOS GREELEY CO 80634 DU RAN EXCAVATING INC $2,416,270.20 14332 CR 64 GREELEY CO 80631 ELEVATED EXCAVATING INC $2,650,874.83 5402 COUNTY ROAD 23 FORT LUPTON CO 80621 NATIVE SUN CONSTRUCTION $3,270,215.00 3107 W. COLORADO AVENUE #312 COLORADO SPRINGS CO 80904 Total cost consists of : (Construction +Erosion Control + Force Account Items) (All Ponds) THE PUBLIC WORKS DEPARTMENT IS REVIEWING THE BIDS. 2021-3388 IZ/13 Hello