FLOOD03429

• County: Adams
• Community: Westminster
• Stream Name: North Cotton Creek
• Basin: South Platte
• Title: LOMR - Affected Panel 08008 0003 C - Case No. 99-08-376P
• Date: 2/1/2000
• Prepared For: Westminster
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

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Federal Emergency Management Agency
Washington, D.C. 20472

CERTIFIED MAIL
RETURN RECEIPT REQUESTED

IN REPLY REFER TO:
Case No.: 99-08-376P

The Honorable Nancy M. Heil
Mayor, City of Westminster
4800 West 92nd Avenue
Westminster, CO 80030

Community: City of Westminster, Colorado
Community No.: 080008
Panel Affected: 0003 C
E~ective.I?ate of FEB 0 1 2000.
This ReVISIOn:

102-I-A-C

Dear Mayor Heil:

This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective
Flood Insurance Rate Map (FIRM) and Flood Insurance Study (FIS) report for your community in
accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated
July 7, 1999, Mr. Kevin Colvett, E.!., Civil Engineer I, Department of Community Development, City of
Westminster, requested that FEMA revise the FIRM and FIS report to show the effects along North Cotton
Creek of channelization from approximately 800 feet upstream to approximately 2,500 feet upstream of
Stuart Street and installation of culverts associated with the development of the Legacy Ridge Filing Nos. 9
and 10 subdivision. This request follows up on a Conditional Letter of Map Revision issued on
November 12, 1998.

All data required to complete our review of this request were submitted with letters from Mr. Colvett and
Mr. Stephen J. Harelson, P.E., Project Engineer, Carroll and Lange, Inc.

We have completed our review of the submitted data and the flood data shown on the effective FIRM and
FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain and
floodway boundary delineations of the flood having a I-percent chance of being equaled or exceeded in
any given year (base flood) along North Cotton Creek. As a result of the modifications, the base flood
elevations (BFEs) for North Cotton Creek and the widths ofthe Special Flood Hazard Area (SFHA), the
area that would be inundated by the base flood, and the regulatory floodway increased in some areas and
decreased in other areas. In a letter dated July 7, 1999, Mr. Colvett stated that the only property owners
affected by this revision are the City of Westminster and the developer. The modifications are shown on
the enclosed annotated copies of FIRM Panel(s) 0003 C, Profile Panel(s) 73P, and affected portions of the
Floodway Data Table. This Letter of Map Revision (LOMR) hereby revises the above-referenced panel(s)
of the effective FIRM dated May 17, 1993, and the affected portions of the FIS report dated April 2, 1997.

The modifications are effective as of the date shown above. The map panel(s) as listed above and as
modified by this letter will be used for all flood insurance policies and renewals issued for your community.