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Federal Emergency Management Agency Washington, D.C. 20472 AUG 1 2 2002 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 02-08-330P The Honorable Lynn Myers Chairperson, Arapahoe County Board of Commissioners 5334 South Prince Littleton, CO 80166 Community: Arapahoe County, CO Community No.: 080011 Panel Affected: 08005C0480 J Effective Date of SEP 1 2 2002 This Revision: I02-I-C Dear Ms. Myers: 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 Arapahoe County, Colorado and Incorporated Areas, in accordance with Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated May 13,2002, P.E., JR Engineering, requested that FEMA revise the FIRM to show the effects of grading in the floodway fringe along the left (west) bank of Cherry Creek from just upstream to approximately 900 feet upstream of East Arapahoe Road. All data required to complete our review of this request were submitted with letters from T We have completed our review ofthe submitted data and the flood data shown on the effective FIRM and in the effective FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain boundary delineations of the flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along Cherry Creek. As a result of the modifications, the Base Flood Elevation (BFE) increased at Cross Section L, as shown on FIRM Panel 08005C0480 J and in the FIoodway Data Table. However, in the FIS report, because the increase in BFE was too small to be shown on the Flood Profile, only the Floodway Data Table for Cherry Creek was revised to reflect this increase. Also as a result of the modifications, the width of the Special Flood Hazard Area (SFHA), the area that would be inundated by the base flood, for Cherry Creek increased in some areas and decreased in other areas from just upstream to approximately 900 feet upstream of East Arapahoe Road. The modifications are shown on the enclosed annotated copy of FIRM Panel 08005C0480 J and affected portions of the Floodway Data Table. This Letter of Map Revision (LOMR) hereby revises the above-referenced panel of the effective FIRM and the affected portions of the FIS report, both dated August 16,1995. Because this revision request also affects the City of Aurora, a separate LOMR for that community was issued on the same date as this LOMR.