FLOOD04590

• County: Larimer
• Community: Fort Collins
• Basin: South Platte
• Title: Ft. Collins Early Warning Systems
• Date: 8/6/1998
• Prepared For: Larimer County
• Prepared By: Consultants
• Floodplain - Doc Type: Community File

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during the snowmelt season, from late April to late June, or during the spring and summer rainstorm
months from May through September as a result of intense localized thunderstorms or large general
rainstorms,

1997 Flood Event
Reports of flooding in Fort Collins were broadcast by various media on the morning of July 29,
1997, following the intense storms of the previous night (and the storm of the day before that),
On that same morning, CWCB staff performed field investigations in Fort Collins to view the
flooded areas and to begin flood documentation efforts, An intense rainstorm had occurred on
the west side of Fort Collins in the evening of July 28, There had been rain during the day on
July 28 in certain portions of the Fort Collins, and even on the previous day, July 27. The
storms produced flood flows the West Vine Drainage, the Canal Importation Basin, the CSU
Drainage, Spring Creek and Fossil Creek, The most severe flooding was on Spring Creek, where
five residents of the city were killed and numerous residents had to be rescued by public safety
personnel. Buildings, bridges and utilities experienced severe damage In the early stages of the
flood many motorists had to be rescued as roadways and intersections became raging rivers

Larimer County, among other Colorado counties, officially received a federal disaster
declaration on August 1, 1997 based on severe flooding conditions. The disaster declaration
made it possible for Larimer County, and the city ofFort Collins, to be eligible to receive federal
funding (disaster reliet) which includes individual assistance, public assistance, and mitigation
assistance, Fort Collins officials made verbal requests to the CWCB for technical assistance
with developing a flood hazard mitigation feasibility study to address proposed flood warning
facilities in Fort Collins.

Obiective
The Project objective is to develop a flood hazard mitigation feasibility study and prepare
portions of a final report to assist the local government (Fort Collins) with the preparation of a
full application for the Hazard Mitigation Grant Program (HMGP). The completed application
with included technical information must satisfy all of the FEMA requirements in order for the
community to be eligible to receive federal grant money for project implementation. There are
some requirements specific to applications for flood warning systems that will have to be
addressed as part of the Project.

Proiect Assil!Dments
Study tasks will be divided among the Project participants as stated in the "summary of
requested work" section of this Scope of Work. The attached "Report Outline" will be the basis
for performing the required work and completing the final Project report, The task assignments
are summarized in the table below.

Project coordination and overall project management

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