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Home My WebLink AboutWORK ORDER - RFP - P959 CONSULTING ENGINEERING SERVICES W WW SW FACILITY CAPITAL IMPROVEMENT"'M [C) Work.0rderNumber, Purchase Order Naruber, Project Title, Commeni:mentl)ad: ( Qwwoo Date.. pxoj act 1)..bscdpdon..: Scope ofServi6ei, 01413708- PMSUANTT-0..AJ4.AGRESMNTBZTWEW THE CITY-OPPOIRT-COLLINS /V YPIWAt-'ar" Service Provider agrees to perform the.: saryfoot Identified above and on. the, affethad f9ams'llo' accordance With the Vm and conditions c6n4ek herein and in the Services AgremInAnt between the. parties- 'n The event Of a conflict between. or ambiguity in the. PMA� of. the ServicesI Agra** and 16 work. order (including: the attached ftps) theservicesAgre —Y— Deter. , Co"Purchasing AND 7;'he attached iixims Fpneisting of_ PIRM SMhObYwaftoplftd add incorporated herem;by this refaetSCe, end;Notiae to Proceed is hereby city of FoitComas 'Ry: Date... Dir"10r OfI'mChesing and Risk Management if over V9,006 EXHIBIT A SCOPE OF WORK for the Hydraulic Analysis of the Proposed Poudre River Footbridge Downstream of Lemay Avenue This Scope of Work (SOW) identifies the proposed engineering effort to be conducted by Anderson Consulting Engineers, Inc. (ACE) in support of a new footbridge system (two 135 foot single span bridges), which is proposed to span the Cache La Poudre River just downstream of Lemay Avenue. It is our understanding that Interwest Consulting Group (ICG) will be responsible for the preparation of all design plans, while the Colorado Department of Transportation (CDOT) will be responsible for providing an existing condition hydraulic model of the study area. It is also our understanding that CDOT will prepare and submit the CLOMR and LOMR for the combined trail crossing and Mulberry Bridge widening project. ACE will support both the ICG design and CDOT CLOMR by providing hydraulic analyses and guidance with respect to the proposed footbridge. The proposed budget for the engineering services provided by ACE, as outlined in this SOW, is provided as Exhibit B. The following paragraphs describe in detail the anticipated work effort associated with this study. Task 1. Data Collection, Field Reconnaissance, and Coordination It is assumed that either CDOT or ICG will provide one foot contour mapping that encompasses the 100-year floodplain, provided in Colorado North State Plane Coordinates (NAD83), using a vertical datum of NAVD88. It is assumed that CDOT will provide a HEC-RAS model that reflects current, pre - project conditions (Existing Conditions). It is further assumed that ICG will provide ACE with the proposed grading and design of the proposed footbridge configurations for use in subsequent hydraulic evaluations. This task includes coordination efforts with both CDOT and ICG to facilitate the procurement of these data. During this task, a detailed field reconnaissance effort will also be completed. The purpose of the field visit will be to familiarize project staff with existing site conditions and to document any features which may impact the hydraulic evaluation. Task 2. Hydraulic Analysis of Alternative Footbridge Configurations The Existing Condition HEC-RAS model provided by CDOT will be modified, as necessary, in the vicinity of the proposed footbridge to depict current geometric conditions and to establish a base model that will be utilized in subsequent hydraulic analyses involving alternative footbridge configurations. Following the completion of this model, ACE will coordinate with both the City of Fort Collins Park Planning and Development and ICG in order to develop potential footbridge configurations that satisfy the needs of the City and will cause the least amount of impact to the floodplain. The potential footbridge configurations will be entered into the updated Existing Condition HEC-RAS model developed as part of this task, and will be evaluated to determine impacts to the 100-year floodplain, the 1-foot floodway and the %-foot floodway. Results from each analysis will be presented to both the City of Fort Collins Park Planning and Development and ICG in order to strategize, as necessary, additional potential footbridge configurations. Up to four (4) potential footbridge configuration evaluations have been included as part of this task. With the selection of a potential footbridge configuration, ACE will finalize the representative Post -Project Condition HEC-RAS model and will provide the information to CDOT. It is our understanding that the HEC-RAS model will be converted to HEC-2 by CDOT for the final CLOMR submittal to FEMA. Consequently, ACE will endeavor to provide the HEC-RAS model in such a format that can readily be converted to HEC-2. This task includes the work effort necessary to facilitate and coordinate the transfer of the final HEC-RAS model to CDOT. Task 3. Reporting and Documentation A brief report will be prepared documenting the engineering effort completed by ACE. This report will summarize the alternative evaluation and discuss the selected footbridge/trail configuration. In addition, hydraulic models and work maps for associated with the Post -Project Condition analysis of the selected footbridge and trail configuration will be included in this submittal. §|| 2 ! 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