HomeMy WebLinkAboutCORRESPONDENCE - PURCHASE ORDER - 9180381ICONENGINEERING, 7000 S. Yosemite Street, Suite 120, Centennial, INC. CO 80112
303.221.0802 | www.iconeng.com
Planning | Design | Management
Exhibit A
Scope of Work
West Vine Basin Floodplain Update
City of Fort Collins
12/5/2017
ICON Engineering, Inc. is pleased to provide this proposal for engineering services to
complete the floodplain update for the West Vine basin. Goals for this project are to
update the floodplain mapping to reflect the changes in hydrology identified for the West
Vine Basin in 2015. This work will also incorporate recent improvements made to the
West Vine Central Flow Path, north of Vine Drive, in addition to current LiDAR
topography. Our scope of work is outlined below. A fee spreadsheet has been
provided for your review.
Base Services – Phase 1:
Task 1: Correspondence:
Up to four (4) project meetings and up to four (4) periodic conference calls have been
assumed for project correspondence. All other correspondence items will be made via
phone calls and emails.
Task 2: Data Collection & Topography:
ICON will assemble current LiDAR topographic data and aerial base mapping as
provided by the USGS/FEMA and the City. ICON will also incorporate as-constructed
topography, as provided by the City, for the West Vine Central Flow Path, located north
of Vine Drive. Finally, ICON will coordinate any new survey needs with City staff.
Surveying will be completed by the City.
Task 3: Hydraulic Analyses:
New hydraulic analyses will be performed for the Central, Cherry/Sunrise, Eastern,
Southern, Southeastern, Northeastern, Northern, and Laporte Avenue Flow Paths.
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These flow paths were originally defined by the February 2013, Baseline Hydraulics
Report Chapter for the West Vine Basin Master Plan. ICON will review previous cross-
section locations, stream centerlines, and roughness assumptions. ICON will attempt to
maintain past modeling features; however adjustments will be made, as needed, for the
update. Similar to the past modeling effort, time has been included to address minor
split flow variations between flow paths and to evaluate “with” and “without” berm
conditions that exist along the Southern Flow Path, west of Poudre High School and
along the Central Flow Path downstream of the Hollywood/Irish Pond.
Hydraulics will be evaluated for the 2-, 10-, and 100-year flood events using flows
identified in the recent hydrologic update. 0.5-foot rise floodways will be developed for
each flow path, unless the additional floodway surcharge can be conveyed by adjacent
flow paths.
Base Services – Phase 2:
Task 4: Floodway Delineation and Flood Profiles:
Floodplains will be delineated for the 100-year flood event only. Floodplain and
floodway delineations will be presented along with profile baselines, hydraulic cross-
sections, base flood elevations (BFEs), and base map references on project workmaps.
Flood profiles will be generated for the flood frequencies identified above.
Task 5: Submittals and Reports:
ICON will assemble an updated version of Appendix C for the West Vine Basin Master
Plan. This appendix will summarize the hydraulics background, data, methodology, and
results from the study. Tables will be prepared documenting flood elevations and
floodway data information. Technical backup information will be assembled in project
appendices.
Task 6: Review and Revisions:
Time has been included to address comments from the City.
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Optional Service 1: Project Webmap
Upon approval from the City, ICON can prepare a project webmap to display the results
of the hydraulic analysis. Optional fees for this task are estimated at $4,770.
Project Fees and Schedule:
A fee spreadsheet has also been provided for review. We estimate that Phase 1 of the
project can be completed for $63,019, Phase 2 of the project for $27,706, and the
optional webmap for $4,770. The total for all three phases is estimated at $95,495.
We anticipate that the first phase of the project will be completed within an 8-month time
frame. Other phases will be completed as funding allows.
ICON ENGINEERING, INC.
PROJECT ESTIMATING SHEET
PROJECT NAME: West Vine Basin Floodplain Analysis
CLIENT: CITY OF FORT COLLINS - Beck Anderson
PREPARED BY: CDJ Principal Professional Professional Engineer GIS Admin GIS Survey Misc.
CHECKED BY: CDJ Engineer III Engineer I IV Specialist Programmer Crew Direct
DATE: 9/27/16 $169 $153 $135 $127 $91 $65 $115 $165 Costs
Description Hours Hours Hours Hours Hours Hours Hours Hours TOTALS
PHASE 1: HYDRAULIC MODELING
Correspondence
a. Project Meetings (4) 10 16 $300 $4,150
b. Conference Calls & Correspondence 612 $2,634
Data Collection & Topography
a. Assemble Base Mapping & Topography 4 10 $1,450
b. Incorporate West Vine Central Flow Path north of Vine Drive 4 6 $1,086
c. Coordinate Survey Information with City 2 4 $100 $978
Hydraulic Analyses
a. Floodplain Analyses
- Central Flow Path 4.0 32 40 8 $10 $10,814
- Cherry Sunrise 1.0 8 10 2 $10 $2,711
- Eastern Flow Path 2.0 16 20 4 $10 $5,412
- Southeastern Flow Path 1.5 12 15 3 $10 $4,062
- Southern Flow Path 3.5 28 35 7 $10 $9,464
- Northern Flow Path 1.5 12 15 3 $10 $4,062
- Northeastern Flow Path 0.5 4 5 1 $10 $1,361
- Laporte Ave Split Flow 0.5 4 5 1 $10 $1,361
- Misc Split Flows 1.0 4 10 2 $10 $2,171
- "Without Berm" Evaluations 1.0 10 4 2 $10 $2,219
b. Floodway Analyses
- Central Flow Path 2.0 12 4 $2,466
- Eastern Flow Path 1.0 8 2 $1,503
- Southeastern Flow Path 0.5 4 1 $752
- Southern Flow Path 2.0 12 4 $2,466
- Northern Flow Path 0.5 6 2 $1,149
- Northeastern Flow Path 0.5 4 1 $752
PHASE 2: WORKMAPS AND REPORTING
Project Workmaps and Profiles
a. Project Workmaps 4 16 40 $15 $6,491
b. Flood Profiles 2 12 40 $15 $7,053
Submittals and Report Items
a. Appendix C - Baseline Hydraulics Report 8 32 16 4 4 $52 $8,380
b. Floodplain and Floodway Data Tables
c. Technical Appendix
Review and Revisions 12 16 20 4 $50 $5,782
TOTAL BASE SERVICES - PHASE 1 41 0 216 173 49 0 0 0 $500 $63,019
$6,929 $0 $29,160 $21,971 $4,459 $0 $0 $0 $500 $63,019
TOTAL BASE SERVICES - PHASE 2 14 0 72 72 64 8 0 0 $132 $27,706
$2,366 $0 $9,720 $9,144 $5,824 $520 $0 $0 $132 $27,706
Optional Service
Project Webmap 8 40 $50 $4,770
TOTAL WITH OPTIONAL SERIVICE $95,495