FLOOD00905

• County: El Paso
• Community: Colorado Springs
• Stream Name: North Fork Dry Creek
• Title: LOMR - Affected Panel 080060 0134 C - Case No. 94-08-161P
• Date: 10/20/1994
• Prepared For: Colorado Springs
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

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Federal Emergency Management Agency
Washington, D.C. 30472

CERTIFIED MAIL
RETURN RECEIPT REQUESTED

IN REPLY REFER TO:
Case No.: ~~~il8~f6ip

The Honorable Robert M. Isaac
Mayor, City of Colorado Springs
P.O. Box 1575
Colorado Springs, Colorado 80901

Community: City of Colorado
Springs, Colorado
Community No.: 080060
Panel Affected: 0134 C
Effective Date of
This Revision: OCl 20 \994

102-D-A

Dear Mayor Isaac:

This is in response to a request for a revision to the effective Flood
Insurance Study (FIS) and National Flood Insurance Program (NFIP) map for
your community. Specifically, this responds to a letter dated July 27, 1994,
from Mr. Dan Bunting, Regional Floodplain Administrator, Regional Building
Department, regarding the effective FIS report and Flood Insurance Rate Map
(FIRM) for the City of Colorado Springs, Colorado. Mr. Bunting requested
that we revise the effective FIRM to show the effects of improvements to the
detention pond located just upstream of Woodmen Road and the construction of
a 48-inch reinforced-concrete culvert from the detention pond to a point
approximately 1,650 feet upstream along North Fork Dry Creek. This request
follows up on a Conditional Letter of Map Revision, which was issued on
February 17, 1994.

All data required to complete our review of this request were -submitted with
Mr. Bunting's letter dated July 27, 1994. All fees necessary to process this
Letter of Map Revision (LOMR), a total of $1,210, have been received.

We have completed our review of the submitted data and the flood data shown
on the effective FIRM, and have revised the FIRM to modify the elevations,
floodplain boundary delineations, and zone designations of a flood having a
1-percent probability of being equaled or exceeded in any given year (base
flood) along North Fork Dry Creek from its confluence with Dry Creek to
approximately 4,700 feet upstream. As a result of the improvements to the
detention pond located just upstream of Woodmen Road, the 100-year flood
discharge downstream of Woodmen Road has been reduced from 453 cubic feet per
second (cfs) to 60 cfs, and the 100-year flood is contained in the channel of
North Fork Dry Creek from its confluence with Dry Creek upstream to the
detention pond. In addition, the 100-year flood is contained in the 48-inch
culvert from its outfall at the detention pond to approximately 1,650 feet
upstream. The base (lOO-year) flood elevations (BFEs) and Special Flood
Hazard Areas (SFHAs) along the entire reach of North Fork Dry Creek,
including the area of the detention pond, have been decreased. Because the
100-year flood is contained in either the channel or the culvert, the zone
designation for this reach has been changed from Zone AE to Zone X. The area
of the detention pond has been changed from Zone AE to Zone A. Woodmen Road
will not be overtopped during the 100-year flood.