HomeMy WebLinkAbout982437.tiff RESOLUTION
RE: APPROVE PROFESSIONAL SERVICES AGREEMENT AND AUTHORIZE CHAIR TO
SIGN - LIDSTONE AND ANDERSON, INC.
WHEREAS, the Board of County Commissioners of Weld County, Colorado, pursuant to
Colorado statute and the Weld County Home Rule Charter, is vested with the authority of
administering the affairs of Weld County, Colorado, and
WHEREAS, the Board has been presented with a Professional Services Agreement
between the County of Weld, State of Colorado, by and through the Board of County
Commissioners of Weld County, on behalf of the Department of Public Works, and Lidstone and
Anderson, Inc., with terms and conditions being as stated in said agreement, and
WHEREAS, after review, the Board deems it advisable to approve said agreement, a
copy of which is attached hereto and incorporated herein by reference.
NOW, THEREFORE, BE IT RESOLVED by the Board of County Commissioners of Weld
County, Colorado, that the Professional Services Agreement between the County of Weld, State
of Colorado, by and through the Board of County Commissioners of Weld County, on behalf of
the Department of Public Works, and Lidstone and Anderson, Inc., be, and hereby is, approved.
BE IT FURTHER RESOLVED by the Board that the Chair be, and hereby is, authorized
to sign said agreement.
The above and foregoing Resolution was, on motion duly made and seconded, adopted
by the following vote on the 16th day of December, A.D., 1998.
BOARD OF COUNTY COMMISSIONERS
£nn' $514c/'
COUNTY, COLORADO
ATTEST:
- Constance L. Harbert, Chair
Weld County Clerk to YF fe ti � ✓
fi'gst ` - _ ; EXCUSED
/ ':1,110 W. H. Webster, Pro-Tem
BY:
Deputy Clerk to the EXCUSED DATE OF APPROVAL
• „ orge E. Baxter
APP FORM:
all
•
my Att ney c (../ —
rbara J. Kirkmeyer
982437
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PROFESSIONAL SERVICES AGREEMENT
THIS AGREEMENT is made and entered into the day and year set forth below, by and
between WELD COUNTY, COLORADO, by and through the Board of County Commissioners
of Weld County, Colorado, whose address is 915 10th Street, Greeley, Colorado 80631,
hereinafter referred to as the "County," and LIDSTONE AND ANDERSON, INC., a Colorado
corporation, whose address is 760 Whalers Way, Suite B-200, Fort Collins, Colorado 80525,
hereinafter referred to as "Professional."
WITNESSETH:
WHEREAS, County is in need of professional services for the purpose of identifying
existing drainage problems and future drainage needs in an area of Weld County, developing cost
estimates of existing and future improvements, development of a financial plan for the
improvements, establishment of common drainage design criteria, and recommendations for an
administrative institution to manage drainage issues in the area, and
WHEREAS, Professional has the expertise and time to perform such tasks, and
WHEREAS, the parties hereto desire to enter into this Agreement for defining their
respective roles and responsibilities relative to Professional's completion of such tasks.
In consideration of the mutual covenants and obligations herein expressed, it is agreed by
and between the parties hereto as follows:
1. Scope of Services. Professional agrees to provide services in accordance with the
scope of services attached hereto as Exhibit"A," consisting of ten(10) pages, and
incorporated herein by this reference.
2. The Work Schedule. The services to be performed pursuant to this Agreement
shall be performed by Professional in accordance with the Work Schedule
attached hereto as Exhibit"B," consisting of one (1)page, and incorporated herein
by this reference. Work on Phase II of the Project shall not commence until such
time as authority to proceed has been received from the Weld County Project
Manager.
3. Time of Commencement and Completion of Services. The services to be
performed pursuant to this Agreement shall be initiated within five (5) days
following execution of this Agreement. The Draft Report of Phase I (Technical
Master Plan) referred to in Exhibit B shall be submitted to the Weld County
Project Manager by April 30, 1999. If funded, the Draft Report of Phase II
(Technical Master Plan) referred to in Exhibit B shall be submitted to the Weld
County Project Manager by May 14, 1999. Time is of the essence. Any
Page 1 of 5 Pages
91A,./37
extensions of the time limit set forth above must be agreed upon in writing by the
parties hereto.
4. Early Termination by County. Notwithstanding the time periods contained
herein, the County may terminate this Agreement at any time without cause by
providing written notice of termination to Professional. Such notice shall be
delivered at least fifteen (15) days prior to the termination date contained in said
notice unless otherwise agreed in writing by the parties. All notices provided
under this Agreement shall be effective when mailed, postage prepaid and sent to
the addresses set forth above.
In the event of any such early termination by the County, Professional shall be
paid for services rendered prior to the date of termination, subject only to the
satisfactory performance of Professional's obligations under this Agreement.
Such payment shall be Professional's sole right and remedy for such termination.
5. Design. Project, Indemnity and Insurance Responsibility. Professional shall be
responsible for the professional quality, technical accuracy, timely completion and
the coordination of all services rendered by Professional, including but not limited
to designs, plans, reports, specifications, and drawings and shall, without
additional compensation, promptly remedy and correct any errors, omissions, or
other deficiencies. Professional shall indemnify, save and hold harmless the
County, its officers and employees in accordance with Colorado law, from all
damages whatsoever claimed by third parties against the County; and for the
County's costs and reasonable attorneys fees, arising directly or indirectly out of
Professional's performance of any of the services furnished under this Agreement.
Professional shall maintain commercial general liability insurance in the amount
of$600,000 combined single limits, and errors and omissions insurance in the
amount of$600,000.
6. Compensation. In consideration of the services to be performed pursuant to this
Agreement, County agrees to pay Professional on a time and reimbursable direct
cost basis designated in Exhibit"C," consisting of one (1) page, attached hereto
and incorporated herein by this reference with maximum compensation (for both
Professional's time and reimbursable direct costs) not to exceedifif 976. Monthly
partial payments based upon Professional's billings and itemized statements of
reimbursable direct costs are permissible. The amounts of all such partial
payments shall be based upon Professional's County-verified progress in
completing the services to be performed pursuant hereto and upon the County's
approval of Professional's reimbursable direct costs. Final payment shall be made
following acceptance of the work by County. Upon final payment, all final
reports, maps, drawings, technical documentation and other services rendered by
Professional shall become the sole property of County, which may then be made
Page 2 of 5 Pages
96o7,/37
available by County to any of the jurisdictions participating in the project. The
parties acknowledge that County has received funding for only Phase I of the
Project as of the date of the signing of this Agreement. Professional shall not
proceed working on Phase II, and shall not be compensated for any such work,
until such time as authority to proceed has been received from the Weld County
Project Manager.
7. County Representative. County shall designate, prior to commencement of work,
its project 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 the County Representative
8. Project Final Reports, Maps, Drawings, and Technical Documentation. Upon
conclusion of the project and before final payment, Professional shall provide
County with reproducible original copies of all final reports and technical
documentation supporting the work completed on the project. Maps and drawings
shall be provided in machine readable format, specifically formatted to
"AUTOCAD Release 14."
9. Monthly Report. Commencing thirty (30) days after the date of execution of this
Agreement and every thirty (30) days thereafter, Professional is required to
provide the County Representative with a written report of the status of the work
with respect to the Scope of Services, Work Schedule, and other material
information. Failure to provide any required monthly report may, at the option of
County, suspend the processing of any partial payment request.
10. Independent Contractor. The services to be performed by Professional are those
of an independent contractor and not of an employee of Weld County. County
shall not be responsible for withholding any portion of Professional's
compensation hereunder for the payment of FICA, Workers' Compensation, other
taxes or benefits or for any other purpose. None of the employees of Professional
shall be considered employees of County, or eligible for County benefits.
11. Personal Services. It is understood that:the County enters into this Agreement
based on the special abilities of Professional and that this Agreement shall be
considered as an agreement for personal services. Accordingly, Professional shall
neither assign any responsibilities nor delegate any duties arising under this
Agreement without the prior written consent of County.
12. Acceptance Not Waiver. County's approval of drawings, designs, plans,
specifications, reports, and incidental work or materials furnished hereunder shall
not in any way relieve Professional of responsibility for the quality or technical
Page 3 of 5 Pages
9oJ7
accuracy of the work. County's approval or acceptance of, or payment for, any of
the services shall not be construed to operate as a waiver of any rights or benefits
provided to County under this Agreement.
13. Default. Each and every term and condition hereof shall be deemed to be a
material element of this Agreement. In the event either party should fail or refuse
to perform according to the terms of this agreement, such party may be declared
in default.
14. Remedies. In the event a party has been declared in default, such defaulting party
shall be allowed a period of ten (10) days within which to cure said default. In the
event the default remains uncorrected,the party declaring default may elect to (a)
terminate the Agreement and seek damages; (b) treat the Agreement as continuing
and require specific performance; or(c) avail itself of any other remedy at law or
equity. If the non-defaulting party commences legal or equitable actions against
the defaulting party, the defaulting party shall be liable to the non-defaulting party
for the non-defaulting party's reasonable attorney fees and costs incurred because
of the default.
15. Entire Agreement/Binding Effect. This writing, together with the exhibits hereto,
constitutes the entire Agreement between the parties and shall be binding upon
said parties, their officers, employees, agents and assigns and shall inure to the
benefit of the respective survivors, heirs, personal representatives, successors and
assigns of said parties.
16. Law/Severability. The laws of the State of Colorado shall govern the
construction, interpretation, execution and enforcement of this Agreement. In the
event any provision of this Agreement shall be held invalid or unenforceable by
any court of competent jurisdiction, such holding shall not invalidate or render
unenforceable any other provision of this Agreement.
17. No Waiver of Immunity. No portion of this Agreement shall be deemed to
constitute a waiver of any immunities the parties or their officers or employees
may possess, nor shall any portion of this Agreement be deemed to have created a
duty of care which did not previously exist with respect to any person not a party
to this Agreement .
18. 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
Page 4 of 5 Pages
undersigned parties receiving services or benefits under this Agreement shall be
an incidental beneficiary only.Sign by the parties thel6thday of December , 1998.
i
ATTEST: � , BOARD OF COUNTY COMMISSIONERS
CLERK TO THE BOA`.�� �'"0,,,, .IL OF WELD COUNTY, COLORADO
COUNTY COMMIS iaN. ;S� G� '.
BY: ,'-//. ".„ BY:
Deputy Clerk t.%' t. fit. c - -c v Constance L. Harbert, Chair (12/16/9s)
INN
ATTEST: LIDSTONEAND ANDERSON, INC.
/gpvl.e. Zatirefiti C77-1 By: %14
,Corporate Secretary
Title: 14 C �{ll plc-mil
(Corporate Seal) Corporate President or Vice President
Page 5 of 5 Pages
9Y74/31
Page 1 of 10
EXHIBIT A
SCOPE OF WORK
for
I-25 CORRIDOR MASTER DRAINAGE PLAN,
SOUTH WELD COUNTY, COLORADO
December 15, 1998
PHASE I - TECHNICAL ANALYSES AND PLANNING
Task 1. Phase I Coordination Meetings
Two coordination meetings will be held with the Weld County Project Manager and staff, and critical
members of the Lidstone & Anderson (LA) Project Team. It is anticipated that the initial meeting will take
place early in the project in order to promote a full understanding of all project requirements and to
summarize the results of the Project Team's efforts to collect, compile and summarize all available reports,
mapping and pertinent data. These sources will include: (a) the files of the City of Dacono, the Towns
of Frederick, Firestone and Erie; (b) Weld County Department of Public Works; (c) ditch companies; (d)
the Colorado Department of Transportation; and (e) the Federal Emergency Management Agency. If
available, information obtained will include: (1) drainage studies and hydrologic/hydraulic modeling
information; (2)previously proposed drainage facilities; (3) "as-built" drawings of drainage and conveyance
features; (4) mapping information; and (5) information pertaining to future plans and development.
The initial meeting may also include a field reconnaissance of existing problem areas, facilities and
drainageways within the limits of the study area. In part, this effort will aid in ensuring that the
expectations associated with the project deliverables coincide with the project scope, schedule and budget.
Depending on the findings associated with the review of existing information, the initial meeting may
include discussion of the following items:
• Project goals and objectives
• Project schedule
• Project deliverables
• Mapping considerations
• Storm drainage criteria
• Criteria and assumptions for basin modeling
• Criteria and assumptions for evaluating existing and future structures
• Location and identification of existing problem areas
• Drainageway planning concepts and evaluation procedures
• Identification of contact person(s) necessary for project coordination
• Conceptual alternative solutions
• Implementation plans and potential funding sources
One additional progress meeting between the Project Manager and the LA team is anticipated, with this
meeting being scheduled midway through the project.
99 V3 1
Page 2 of 10
Task 2. Preparation of Base Mapping
Digital USGS quadrangles will be obtained for the study area and combined to form a single, contiguous
topographic base map. In addition, the U.S. Soil Conservation Service (SCS) Soils Report for Weld
County will be obtained, and hydrologic soils groups identified, digitized and tied to the same coordinate
base as the topographic mapping. Finally, all current Comprehensive Plans will be compiled, and land use
zoning designations digitized using the same coordinate base as the topographic mapping. It is assumed
that future development conditions will be indicated by current zoning contained in the communities'
Comprehensive Plans.
This task will also include the identification of coverage for each of the 1"=400' maps required for
presentation of Master Drainage Plan improvements. It is currently expected that a total of 12 maps will
be required at this scale to provide complete coverage of both the Tri-Town and Godding Hollow Basins.
Task 3. Field Reconnaissance, Supplemental Surveying and Inventory/Evaluation of Existing
Drainage Facilities
Field reconnaissance efforts will focus on both the inventory and determination of conveyance capacity of
all significant existing drainage facilities and structures. Information contained in previous studies,
compiled as part of Task 1, will be utilized to assist in the evaluation of drainage facilities. All primary
detention facilities, culverts, bridges, road crossings, drainage channels, irrigation ditches, and major storm
sewers will be inventoried and evaluated. The inventory will include a tabulation of the location, type and
condition of each major structure in addition to photographic documentation of each structure.
Given the use of USGS topographic data and the ten-foot contour interval, elevations shown on the maps
should be accurate to within +/- five feet. Therefore, more accurate invert elevations will be required at
critical hydraulic structures. Field measurements (dimensions, configurations, condition of materials, etc.)
will be made of critical structures to verify or to supplement existing information. Where it is necessary
to supplement existing topographic mapping, field survey requirements will be identified. Survey
information will be collected using a Global Positioning System (GPS) in order to:
(a) define existing structures(bridges, culverts, outlet structures, and major storm sewers) with respect
to geometric configuration, invert elevations, and overtopping elevations;
(b) provide channel cross section and profile data at critical locations; and
(c) provide verification of the available topographic mapping, and identification of general drainage
patterns in specific locations where the accuracy of the topographic mapping appears to be
inadequate.
The capacity of each structure will be determined and the feasibility of integrating existing facilities into
the master plan investigated. Results of the inventory will be specifically utilized in the hydrologic
modeling efforts to provide a baseline condition indicative of existing and potential flooding problems.
In conjunction with the inventory of existing drainage facilities, field reconnaissance efforts will also be
directed toward the definition and verification of locations of existing drainage problems, as well as the
conceptual formulation of plans for improvements at these locations.
Page 3 of 10
Task 4. Identification of Existing Flood Problems and Delineation of Major Drainage Basin
Boundaries
To provide insight into existing and potential flooding problems within the study area and to aid in
delineating major basin boundaries for the Drainage Master Plan, a detailed review of all available reports,
mapping and data pertinent to the existing facilities will be conducted. This information will include, but
is not limited to, the following: (a) existing drainage criteria and policies; (b) existing and ongoing
drainage studies; (c) zoning data; (d) pertinent soils, rainfall and runoff data; (e) inventories of existing
facilities; (t) available mapping and utility data bases; and (g) agreements with various entities including
ditch companies, and county agencies. Interviews with both public employees, ditch company
representatives, and private citizens are anticipated to establish the location and extent of known or
potential flooding problems.
Boundaries of the major drainage basins within the study area will be defined using USGS topographic
mapping (quadrangles) provided in a digital format, supplemented by field observations and surveying
information collected as part of Task 3.
Task 5. Hydrologic Model Formulation and Analyses
Definition of Deskn Storm Events. It is anticipated that a 2-hour rainfall event will be used as the design
storm for the Tri-Town and Godding Hollow Basins. Total rainfall depths will be defined for the 2-, 5-,
10-, 25-, 50- and 100-year return period events based on data and procedures defined in the Precipitation-
Fequency Atlas of the Western United States, NOAA Atlas 2, Volume III, Colorado [1973]. Design
rainfall hyetographs will be defined using an SCS Type II storm distribution.
Soils Evaluation and Infiltration Considerations. An average set of infiltration parameters will be
defined for each of the two major drainage basins. An evaluation of the soils within each basin will be
conducted using soils information and infiltration values cited in the SCS Soils Report for Weld County.
Any and all local soils information which has been collected within the study area will also be factored into
the evaluation. Depending on the relative variability of infiltration rates throughout the area, it may be
appropriate to simply specify a region-wide set of infiltration values.
Hydrologic Model Formulation. Four hydrologic models will be prepared, one each for existing and
fully-developed conditions within the basins, for each of the two major drainage basins. All four models
will assume the presence of existing drainage facilities throughout the basins. The existing condition
models will provide for evaluation of current hydrologic conditions within the two basins, including
evaluation of existing facilities and flood hazard areas. The fully-developed condition models will allow
evaluation of the scenario where no drainage improvements are implemented while full development is
attained in the basins. In addition, this second set of models will set the stage for evaluation of drainage
improvement alternatives and development of regional storm water management plans, as well as the
preparation of the two models representing fully-developed conditions with Master Plan facilities.
The identification of hydrologic design points will be completed initially to specify all locations where
hydrologic and/or hydraulic conditions need to be defined. Hydrologic design points will be located at all
major drainage facilities, road crossings, and areas with existing and potential flooding problems. For the
urbanized areas, the delineation of subbasins will be based on several considerations; the location of major
drainage facilities and road crossings will be considered, as well as the location of existing or potential
flooding problems. It is anticipated that the average size of the drainage subbasins will be decreased within
the urbanized area; however, the modeling effort will not include the simulation of all local streets and
Page 4 of 10
associated storm sewers and inlets. For the more rural areas outside of the central urban area, subbasin
sizes will be increased but not excessively so as to compromise modeling accuracy.
Hydrologic Analyses. The four hydrologic models will be used to analyze the two major drainage basins
for the two scenarios described above. The hydrologic analyses will include evaluation of the 2-, 5-, 10-,
25-, 50- and 100-year return period events. It is anticipated that either EPA SWMM or HEC-1 will be
utilized to conduct the hydrologic analyses. Based in part on meeting FEMA requirements, LA will
propose the use of an appropriate hydrologic model. However, final acceptance/approval of the hydrologic
model will be made by the Weld County Public Works Department. It will be necessary to make this
selection early in the project to allow tailoring of data collection to the selected model.
Task 6. Hydraulic Analysis of Existing Drainage Facilities
In conjunction with the inventory of existing facilities, a hydraulic analysis of these facilities will be
completed. This analysis will include the evaluation of all road crossings, conveyance channels, and water
control structures located along the two major drainage channels. The hydraulic capacity of existing
facilities will be determined and compared to the design flood events to determine the level of protection
afforded by each structure for existing development conditions.
Several tools will be utilized to facilitate the hydraulic analysis of existing facilities as well as the analysis
and conceptual design of future improvements;these tools are not limited to but may include the following:
(a) the U.S. Army Corps of Engineers' HEC-2 computer model for simulation of backwater profiles
and normal depth computations for irregular cross sections, as necessary, within the major
drainage/conveyance channels or street systems;
(b) the Federal Highway Administrations' computer program (HY-8) for culvert analyses; and
(c) the Urban Storm Drainage District's UDSewer model for analysis and design of storm sewer
systems.
Task 7. Formulation and Evaluation of Alternative Stormwater Management Improvements
Formulation of Alternative Stormwater Management Improvements. Results of the previous
hydrologic modeling and hydraulic evaluation efforts will provide the basis for formulation of alternative
stormwater management plans within each of the two major drainage basins. It is anticipated that the 100-
year event will be used as the design event. If it is determined that providing 100-year protection
throughout the basin is impractical or infeasible, discussions will be held with the Project Manager to
determine the preferred course of action. Specific structures which lack adequate conveyance capacity will
be earmarked for improvement. The formulation of alternative plans to mitigate existing and potential
flood hazard problems may include: (a) utilization of regional versus on-site detention facilities; (b)
improvements to existing drainageways, road crossings and outfall systems; (c) potential enlargement of
existing storm sewers; and (d) construction of storm runoff conveyance channels which parallel irrigation
ditches presently capturing storm runoff. Internal consideration and evaluation of alternatives will occur
continually throughout this process.
During the development of alternative plans, the following factors will be initially considered:
9,F, 17-3 1
Page 5 of 10
(a) feasibility of improvements to reduce or eliminate flood hazard problems;
(b) feasibility of improvements given the complex nature of the study area in terms of governing
agencies and involvement of multiple parties;
(c) order-of-magnitude capital construction costs, land acquisition, and operation and maintenance
costs.
The development of alternative plans will also be tempered by more intangible issues related to corridor
planning, including impacts to water quality, wetlands, potential loss of open space, and recreational
opportunities. In addition, the stability of all conveyance facilities will be evaluated with respect to the
potential for erosion of the channel bed and banks on a qualitative level.
A two-phased screening approach to alternative evaluation will be utilized. A preliminary screening
process will be instituted internally to identify only the most feasible alternative'storm water management
plans. The intent of the preliminary screening process is to identify "fatal flaws" which would preclude
an alternative from further consideration. The final screening of alternatives should be based on evaluation
criteria chosen in conjunction with the Project Manager. These criteria may include but are not limited
to the following: (a) feasibility and degree of reducing existing and future flooding potential; (b) capital
construction, and long-term operation and maintenance costs; (c) cost of rights-of-way, easements, and
utility crossings; (d) integration of corridor planning issues and open space requirements; (e) impact on
wetlands and other environmental considerations; and (0 ability to address storm water quality concerns.
Recommendations will be made by the Project Team regarding the selection of the preferred improvement
plan; however, it is anticipated that the final selection of the preferred plan will rest with the Project
Manager assisted by ongoing coordination with the Project Team throughout the formulation and evaluation
process.
Hydrologic/Hydraulic Evaluation and Conceptual Design of Improvements. Given the selected
stormwater management plan for each of the two major basins, a hydrologic/hydraulic evaluation and
conceptual design will be completed for the facilities which represent the components of the plan. A fully-
developed condition hydrologic model will be prepared with the proposed drainage facilities imposed. This
will provide a basin-wide evaluation of the proposed system to ensure appropriate protection levels and
capacities are provided.
Following the hydraulic evaluation of all proposed improvements, conceptual plans will be provided for
each type of structure including culverts, bridges, detention ponds and outlet structures, storm sewers and
all appurtenant storm drainage structures. While construction drawings will not be provided as a part of
this task, the conceptual design information will provide substantial guidance and facilitate future
preliminary and final design efforts.
Preliminary Cost Estimates. Easements and Land Acquisition. Preliminary cost estimates for the
proposed regional drainage facilities will be compiled at this point in the project. Engineering design,
construction and land acquisition costs for dedicated easements or rights-of-way for facilities associated
with the preferred alternative will be estimated. A standardized tabular format will be developed for
presentation purposes. Every effort will be made to assign a complete dollar value to these cost analyses,
but intangibles, such as potential recreational/natural benefits, may need to be included as narrative aspects
of selected alternatives.
98,'31
Page 6 of 10
Task S. Development of Review Criteria
Uniform criteria for the planning and design of drainage facilities will be developed through coordination
with the Project Manager. This task will include the review and preparation of a summary of existing
storm drainage criteria adopted by the various communities. this effort will assist in the development of
recommended uniform criteria specifically for this master planning effort. The criteria will be limited to
the planning and design of major drainageway facilities and improvements, and on-site detention
requirements.
Task 9. Phase I Presentations and Deliverables
Project Presentations. Given both the public interest and number of local jurisdictions involved in this
project, up to three public workshops will be held. It is recommended that two of these workshops be held
early in the process to promote a full understanding of the value and foresight of the investment in a
comprehensive drainage planning effort. A final workshop is anticipated near the end of the project to
serve as an "open house" in order to communicate back to the public the final stormwater improvement
plan.
A workshop format is recommended where all those attending may contribute or ask questions. It is
anticipated that the workshop will focus on obtaining information pertaining to flood prone areas, gather
public input and support, and potential alternative improvements. It is recommended that a clear direction
and justification for the project be identified immediately and communicated to the public. Rather than a
call for a public consensus, the workshop will focus on education and potential community benefit, as well
as demonstrate the economic benefit of potential alternatives.
Project Deliverables. All previous work will culminate in the selection of the preferred alternative
stormwater management plan for each major basin and production of a formal Master Drainage Plan
document. Within this document, preferred improvements for each basin will be developed in final form.
All conceptual design drawings will be prepared, as required, in both hardcopy format and in a format
compatible with the computer capabilities and software utilized by the County. Conceptual design
information will be supplemented with narrative descriptions of the proposed facilities. This information
and design drawings, combined with descriptive text, will be produced for a target audience of developers
and planners, as well as engineers. An electronic file of the Master Drainage Plan will be provided to ease
future modification of the plan.
Detailed cost estimates for the improvements will be presented. The estimates will be prepared in a
standard format, with sufficient detail to allow updating of the unit costs for future utilization.
In conjunction with the Project Manager, the format of the master plan document will be finalized and
approved. A draft document will be prepared in sufficient detail to:
(a) properly plan storm drainage conveyance facilities, detention ponds, and outlet facilities in order
to allow the acquisition of needed right-of-way; and
(b) allow the planning of new subdivisions and buildings with full knowledge of future drainage
channel and storm sewer facility locations and characteristics.
95d4/3
Page 7 of 10
Following review of the draft documents and incorporation of the comments generated by the Project
Manager and partnering communities, final documents will be prepared and submitted.
While production of the master plan document is important, the data base on which the recommended plan
is formulated is equally important. To be a useful tool for evaluating future improvements or changes in
land use, the data base and hydrologic models will be well documented and flexible to accommodate such
changes. The data base will be documented to allow replication of the steps taken to generate the design
flows, estimate the capacity of existing and future facilities, and delineate the limits of the floodplains.
Along with detailed technical appendices, a project notebook will be prepared to document the procedures,
assumptions and results of all hydrologic and hydraulic modeling. This information will also be provided
on computer diskettes to facilitate the utilization of the models and the generation of results.
9539/37
Page 8 of 10
PHASE II - POLICY AND IMPLEMENTATION
Task 10. Phase II Coordination Meetings
One coordination meeting will be held with the Weld County Project Manager and staff, and critical
members of the Lidstone & Anderson (LA) Project Team. It is anticipated that this meeting will be held
at a timely point in the project to discuss policy, planning, and funding issues/alternatives.
Task 11. Development of Stormwater Management Policy
During the development of the master plan, a stormwater management policy and implementation plan of
proposed improvements will be prepared. The policy will attempt to balance public and private
involvement, as well as provide a tool for ensuring a regionally-integrated drainage system. With respect
to the stormwater management policy, several issues must be discussed and may include, but are not
limited to, the following items:
• Basic Principles
Linking Development to Drainage Improvements
Utilization of Stormwater as a Multi-Purpose Resource
Water Rights
Jurisdictional Boundaries
• Regional and Local Planning
Basin Transfers of Stormwater Runoff
Master Planning
Special Planning Areas
Funding of Public Improvements
Floodplain Management •
Stormwater Runoff Detention and Water Quality Enhancement
Operations and Maintenance
Erosion and Sediment Control
• Technology Planning and Design
Drainage Criteria
Minor versus Major Drainage Systems
Estimation of Stormwater Runoff
Streets
Floodproofing
• Irrigation Facilities
Integration into the Major Drainage System
Storage Facilities
Irrigation Ditches
The draft stormwater management policy will be prepared and submitted to the Project Manager. Upon
approval of the policy, it will be integrated into the final master planning document.
q v3"7
Page 9 of 10
Task 12. Development of the Implementation and. Prioritization Plan
During the evaluation of stormwater management improvements, design information and final cost
estimates will be prepared as outlined in Task 7. This information will provide the foundation for
development of a plan for implementing and prioritizing these recommended improvements. It is
anticipated that a flexible priority system will be developed which specifies each of the evaluation factors,
and then rank the proposed improvements within the values of the factors. These factors may include:
(a) ability for independent implementation; (b) potential reduction in flood damages; (c) potential reduction
in health and safety hazards; (d) integration of multi-purpose objectives such as parks, open space,
wetlands, and water quality; (e)percent of urbanized community impacted; and (t) project costs. The final
selection of evaluation factors will be completed with input from the Project Manager. A decision matrix
will be prepared which represents the selected evaluation factors and considers the ranking of the various
improvements.
Task 13. Funding/Financing Alternatives
Planning stormwater improvements using a basin-wide approach requires a basin-wide financing
plan. Several mechanisms will be evaluated for applicability to financing the identified storm drainage
improvements. The funding mechanisms which will be considered include the following:
• Ad Valorem Tax • Developer Fees
• Special Assessment Districts • Basin Fees
• Sales Tax • Utility Billing
• Government Programs • Capital Users Fee
• County Drainage Districts • Urban Drainage Districts
If requested, other sources will be considered; however, they will be evaluated based on whether they will
meet the test of being a uniform, continuous and acceptable source. The following considerations will be
used for comparing and evaluating each available financing method:
• equity of method to individual property owners;
• potential for committing a portion of the proposed revenue source for other uses;
• legal constraints on the revenue source;
• expected response by those required to pay, in terms of past experience;
• administrative difficulty in collecting the revenue; and
• amount of revenue to be generated from each source.
During the master planning efforts, an investigation will be conducted for establishing drainage districts
including basin fees for future development. An examination of any local municipalities' current drainage
fee collection system will be conducted and the results will determine if the County is collecting enough
money to pay for the cost of future improvements. Data will be collected from neighboring communities
to promote a comparison of drainage fees and to assist in the identification of fair and equitable basin fees.
Alternatives will be evaluated regarding an institutional organization which would be authorized to
implement the planned drainage improvements and the required ongoing maintenance activities. In
coordination with the Project Manger, a recommended institutional organization will be presented to the
County.
Page 10 of 10
Task 14. Phase II Deliverables
All work associated with Phase II will culminate in the production of a Policy and Implementation Report
to supplement the Master Drainage Plan. If requested by the County, the Policy and Implementation
Report will be incorporated into the Master Drainage Plan. In addition, an Executive Summary will be
prepared to provide general drainage planning guidance and a brief synopsis of the Master Drainage Plan.
An electronic file of both the Policy and Implementation Report and the Executive Summary will be
provided to ease future modification.
In conjunction with the Project Manager, the format of the Policy and Implementation Report will be
finalized and approved. A draft document will be prepared in sufficient detail to facilitate implementation
of construction projects in accordance with the plan. Following review of the draft documents and
incorporation of the comments generated by the Project Manager and partnering communities, final
documents will be prepared and submitted.
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