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Home My WebLink About20081867.tiff WORK ORDER FORM PURSUANT TO AN AGREEMENT BETWEEN WELD COUNTY AND TERRACON DATED: June 16th, 2008 Work Order Number: TERRACON - 6 Project Title: Weld County Public Woks WCR 2 Road Improvements Commencement Date: June 18°i, 2008 Completion Date: October 15th, 2008 Limitations on compensation: Not to exceed $19,337.00 Project Description: Provide materials testing. Scope of Services: See attached Scope of Work dated June 13, 2008 Professional agrees to perform the services The attached forms are hereby accepted and identified above and on the attached forms in incorporated herein, by this reference, and accordance with the terms and conditions Notice to Proceed is hereby given. contained herein and in the Professional Services Agreement between the parties. In the event of a conflict between or ambiguity in the Weld Coin /ds terms of the Professional Services Agreement and this work order (including the attached By: S forms) the Professional Services Agreement Project Manager shall control. Date: 119-ob Professional By: Department Head Ten-acon Consulting Engineers Date: 1242 G � 1242 Bramwood Place Longmont, CO 8050 By: , Director of P an4 iQA ministration By: /��'__ � Date: Z t} Title: Cl1/hjc )/'JAL BY Chairman. V1UL1 (4 ri2iammissioncrs Date: 4,// 7/l/ Date: JUL--421008 2008-1867 C/fc11Q�G f �l� 1 rerracon Consulting Engineers&Scientists Terracon Consultants,Inc. 1242 Bramwood Place Longmont,Colorado 80501 Phone 303.776.3921 Fax 303.776.4041 www.terracon.com June 13, 2008 Mr. Josh Holbrook Weld County Public Works 1111 H Street, P.O. Box 758 Greeley, CO 80632 RE: Proposal for Construction Materials Testing Services Weld County Road 2 Lochbuie, Colorado Terracon Proposal No.C2208054 Referenced Weld County Proposal # B07-00069 Terracon Consultants, Inc. (Terracon) is pleased to submit this proposal for providing construction materials testing services for the referenced project. This proposal includes an outline of the project information provided to us, the proposed scope of services, our estimated fees and the proposed schedule. A. PROJECT INFORMATION As we understand, this phase of the project will consist of road improvements on Weld County Road 2. The roadway will include class 6 road base with HMA mat and drainage improvements. The project is located at Weld County Road 2 and I-76, Lochebuie, Colorado. B. PROPOSED SCOPE OF SERVICES Our understanding of the required construction materials testing services for this project is based upon information provided by your firm. The general services estimated for this project are listed below, followed by the specific scope of services for each service type: • Field density-compaction testing of soils; • Field testing and laboratory evaluation of concrete; • Field testing of asphalt-concrete. Delivering Success for Clients and Employees Since 1965 More Than 70 Offices Nationwide Weld County Rd 2 Terracon Proposal No.C2208054 June 16, 2008 Our services will be provided on an as-requested basis with scheduling by the Contractor or owner's representative. Since our personnel will not be at the site on a resident basis, it will be imperative that we be advised when to provide services on the project. Services must be scheduled a minimum of one (1) working day in advance. Unless other arrangements are made, scheduling of personnel will be on an as available basis, which may require changes in personnel assigned to the project. Terracon will not be responsible for scheduling our services and will not be responsible for tests that are not performed due to a failure to schedule our services on the project. The detailed scope of services envisioned to complete the testing is as follows: Field Density-Compaction Testing: Field density-compaction testing will be performed on an as-requested basis, during site grading, at the project. Additionally, density-compaction testing will be performed during slab, miscellaneous site work and pavement subgrade preparation. The field services will be supported by appropriate laboratory evaluation of soils used as fill and/or backfill at the project. The laboratory testing will include laboratory moisture-density relationships (Proctor). Laboratory material evaluations will be conducted, at a minimum, for each type of soil encountered during fill placement. The testing will be performed to determine compliance with project specifications. The Contractor on the site will be informed of our field observations and test results. Written reports of test results will be prepared on a regular basis throughout the duration of the project. Concrete Testing: An Engineering Technician will be provided, on an as-requested basis, to sample the plastic concrete used during construction and site work as applicable. The concrete will be tested for slump, air content and temperature at the time of placement. Sets of four (4), 4-inch by 8-inch cylinders will be molded at each sampling. All samples will be field cured at the site and returned to our laboratory for moist curing prior to compressive strength testing. Compressive strength testing will be conducted in compliance with project specifications. All test results will be conveyed after testing is completed. Asphalt Concrete Paving: Field density-compaction testing by nuclear methods will be provided by an experienced Technician, on an as-requested basis, during the placement of asphalt concrete at the project. The density-compaction of the asphalt concrete will be evaluated utilizing information from the paving contractor's asphalt mix design. (Gradations, Rice, Marshall — etc). Daily reports of test results will be available on-site for your review and a written report will be prepared at the completion of the project. CDOT table below will be followed for frequency of tests under "Frequency-Acceptance" 2 Weld County Rd 2 Terracon Proposal No.C2208054 June 16, 2008 Element&Test Frequency- Frequency- Frequency- Check Test Standard Normal Increased* Acceptance Program Asphalt Content/ 1 /500 Tons 1 /250 Tons 1 /1,000 Tons 1 /10,000 Tons Gradation CP-85" Voids in Mineral Aggregate CPL-5102, 1 /1,000 Tons 1 /500 Tons 1 /1,000 Tons 1 /10,000 Tons 5103, 5115 Air Voids CPL-5102, 1 /1,000 Tons 1 1 500 Tons 1 /1,000 Tons 1 /10,000 Tons 5103, 5115 Hveem Stability CPL- 1 /10,000 Tons 1 /5000 Tons 1 /10,000 Tons N/A 5106&5115 Lottman CPL-5109 1 /10,000 Tons 1 /5000 Tons According to N/A Subsection 401.02 Gradation CP 31A&B 1 /10,000 Tons 1 /5000 Tons 1 /10,000 Tons N/A Mat Density CP-81 1 /500 Tons 1 /250 Tons 1 /500 Tons 1 /5000 Tons Joint Density CP-81 1 /2,500 Linear feet 1 /2,500 Linear feet 1 /5,000 Linear feet 1 /10,000 Linear Feet Aggregate Percent 1 /2000 Tons or 1 / 1 /2000 Tons or 1 / 1 /500 Tons N/A Moisture Day Day Percent Lime CP-60b 1 /Day N/A N/A N/A C. COMPENSATION The cost for our services, including all field work, laboratory testing, engineering analyses and report preparation has been estimated on the basis of unit rates especially prepared for this project. Our services will be provided to give the owner a greater degree of confidence in the work being constructed, however, these services in no way relieve the various contractors from their responsibility for properly constructing the work. For testing and observation services, our costs for the project are based on the following number of trips at the durations indicated: The time required for construction materials testing on the project will be directly related to the schedule and performance of the various contractors on the site. While the following phases of construction have been separated for estimating purposes, actual field testing services may be performed simultaneously on the various phases. As a result, total fees for 3 Weld County Rd 2 Terracon Proposal No.C2208054 June 16, 2008 construction materials testing services are based on applicable unit rates and we will invoice you on that basis. The estimated fees presented will include only those services outlined in the above section of the proposal. The fees presented are inclusive of all field work, laboratory work, mileage and report preparation required to complete standard testing requirements. Following are fees for performing construction materials testing for this project. Additional services not listed will be billed according to our current fee schedule. Description Unit Prices Est. Quantity Total Soil Density Testing $29.00/each 40 $1,160.00 Proctor Curve T-99 $119.00/each 6 $714.00 Proctor Curve T-180 $129.00/each 1 $129.00 Atteberg Limits, Classification, $72.00/each 12 $864.00 Sieve Analysis- (Plus#4 Material) $41.00/each 12 $492.00 Sieve Analysis- (Minus #4 Material) $46.00/each 12 $552.00 R-Value $310.00/each 2 $620.00 Concrete Testing $227.00/each 3 $681.00 Compressive Strength Tests $14.50/each 12 $174.00 Asphalt Density $27.00/each 50 $1,350.00 Maximum Theoretical Specific Gravity $88.00/point 13 $1,144.00 Lottman (TSR) Test $248.00/each 2 $496.00 Mix Design Bulk Unit Weight and $258.00/each 2 $516.00 Hveem Stability Verification Extraction / Gradation $185.00/each 13 $2,405.00 Core samples $46.00/hour 20 $920.00 Cores per inch $5.00/inch 160 $800.00 Project Manager $88.00/hour 15 $1,320.00 Other Professional Services $5,000.00 Standby Time / Cylinder Pickup $49.50/hour Total $19,337.00 Our estimated project costs are based upon our understanding of the project, information provided by the individuals listed above, information from the project plans provided and the State of Colorado. Additionally, the following assumptions were used in preparing our estimated fees: • Should additional services be required beyond the scope of work outlined above, our standard unit rates will be applicable; 4 Weld County Rd 2 Terracon Proposal No. C2208054 June 16, 2008 • The client and/or contractor is responsible for scheduling all testing and inspection services with a minimum of 24 hours notice; • Unit rates will be applicable for on-site duration's in excess of those outlined; and • Invoices for the project will be submitted on a monthly basis. This proposal may be accepted by executing both originals of the attached Agreement for Services and returning one executed copy along with this proposal to Terracon. The remaining executed copy is for your files. This agreement, including the limitations it contains, shall constitute the exclusive terms, conditions and services to be performed for this project. Commencement of services by Terracon will be considered acceptance of this proposal and the attached Agreement for Services. We appreciate your consideration of Terracon for this work, and look forward to working as your geotechnical and materials engineering consultant on this and future projects. Sincerely, CON CONSULTANTS INC. oo a-A-CLAPeS Doug chneider Edward J. Paas, P.E. CMT Manager Principal Copies to: Addressee (2) 5 #(0 elet "Licise MEMORANDUM CTO: Clerk to the Board DATE: June 26, 2008 • COLORADO FROM: Joshua Holbrook, Public Works SUBJECT: Agenda Item Attached are two originals of each: 1) Work Order Forms Pursuant to an agreement with Terracon,Terracon-6 in the amount of$19,337. 2) Change Order for original contract time extension and change of original rate schedule Please return one signed original each to Public Works upon execution. Enclosures M SFranc ie\AgendaMikeBedel l.doc M: Francie\AgendaJoshuaHolbrook. doc firnhavIt 7-a-QlThh 6,Oo` BOARD OF COUNTY COMMISSIONERS REVIEW/WORK SESSION REQUEST RE: Terracon Contract Work Order 6 for material testing on rd. 2 and new pay rate schedule for 2008. DEPARTMENT: PUBLIC WORKS DATE: 6-16-2008 PERSON REQUESTING: Joshua Holbrook, Construction Inspection Supervisor. Brief description of the problem/issue: Change Order No. 1 - The original agreement for Professional Services could extended from June 18th, 2008 to June 17th, 2009 as permitted by the contract. This extension would be in the second year of the four year term limit. The 2007 rate Schedule of the original contract would be replaced with the attached Exhibit A, 2008 Rate Schedule. Work Order No. 6 — Public Works is proceeding with WCR 2 Road Project from I-76 to WCR 45. We have selected Terracon to perform theses services under the On-Call Geotechnical Contract. Terrracon has submitted a proposal and will not exceed the cost to complete the requested services. These services are required to ensure materials used during construction meet contract specifications for embankment, gravel, concrete and asphalt. Attached is Work Order No. 6 outlining the scope of work and cost to complete the work. Terracon estimates the cost for WCR 2 from I-76 to WCR 45 to be $19,337.00. What options exist for the Board? (Include consequences, impacts, costs, etc. of options) BOCC can either approve Work Order No. 6 and the Change Order No. 1 and continue proceeding with the work or deny approval for Work Order No. 6 and Change Order No. 1. Recommendation to the Board: I recommend approval of Work Order No. 6 and Change Order No. 1 for Terracon under the On-Call Geotechnical Contract. Approve Schedule Recommendation Work Session Comments William H. Jerke, Chair Robert D. Masden, Pro-Tem V William F. Garcia David E. Long Douglas Rademacher — Attachments: Two (2) Work Order Form No. 6, Scope of Work, Two (2) Change Order from No. 1 with 2008 Rate Schedule pc: Mona Weidenkeller, Public Works M:Y Administration\Forms\Work Session Request.doc Hello