FLOOD11468

• County: El Paso
• Community: El Paso County
• Stream Name: Pine Creek
• Basin: Arkansas
• Title: LOMR - Affected Panel 508F - Case No. 01-08-177P
• Date: 1/15/2004
• Prepared For: El Paso County
• Prepared By: FEMA
• Floodplain - Doc Type: Historic FEMA Regulatory Floodplain Information

Federal Emergency Management Agency
Washington, D.C. 20472

SEP 2 6 2003

CERTIFIED MAIL
RETURN RECEIPT REQUESTED

IN REPLY REFER TO:
Case No.: 01-08-177P

The Honorable Chuck Brown
Chairman, EI Paso County
Board of Commissioners
27 East Vermijo Avenue
Colorado Springs, CO 80903-2208

Community: EI Paso County, CO
Community No.: 080059
Panel Affected: 08041C0508 F
Effective Date of
This Revision: J AN 1 5 2004

102-I-A-C

Dear Mr. Brown:

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 El Paso County, Colorado
and Incorporated Areas, in accordance with Part 65 of the National Flood Insurance Program (NFIP)
regulations. In a letter dated February 21, 2001, Mr. Robert L. Plese, Jr., former Floodplain Administrator,
Pikes Peak Regional Building Department, requested that FEMA revise the FIRM and FIS report to show
the effects of updated topographic information and the following projects along Pine Creek: realignment
and channelization from approximately 700 feet downstream to approximately 800 feet upstream of
Academy Boulevard; installation of a 36-foot by 10-foot concrete box culvert under the Academy
Boulevard crossing of the realigned creek; installation of two separate drop structures along the realigned
creek approximately 150 feet downstream and approximately 450 feet upstream of Academy Boulevard,
respectively; and construction of a stilling basin along the realigned creek approximately 300 feet upstream
of Academy Boulevard.

All data required to complete our review of this request were submitted with letters from 1
J P.E., Project Manager, URS Corporation, and Mr. Plese.

We have completed our review of the submitted data and the flood data shown on the effective FIRM and
in the effective PIS 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 Pine Creek from approximately 100 feet upstream of its
confluence with Pine Creek Tributary to approximately 600 feet upstream of Academy Boulevard along
the realigned Pine Creek. As a result of the modifications, the Base Flood Elevations (BFEs) for Pine
Creek and the widths of the Special Flood Hazard Area (SFHA), the area that would be inundated by the
base t1ood, and the regulatory floodway increased in some areas and decreased in other areas. The
increases in BFE are contained within the Pine Creek channel. In addition, the SFHA between Pine Creek
Tributary and the corporate limits of the City of Colorado Springs that previously resulted from the
overflow breakout of Pine Creek just upstream of Academy Boulevard was redesignated Zone X (shaded),
an area of moderate flood hazard. The modifications are shown on the enclosed annotated copies of FIRM
Panel 08041C0508 F; Profile Panels 179P, 180P, 330P, and 331P; and affected portions of the Floodway
Data Table. This Letter of Map Revision (LOMR) hereby revises the above-referenced panel of the
effective FIRM dated March 17, 1997, and the affected portions of the FIS report dated August 23, 1999.