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" Federal Emergency Management Agency Washington, D.C. 20472 CERTIFIED MAIL RETURN RECEIPT REQUESTED IN REPLY REFER TO: Case No.: 96-08-17IP The Honorable Marian Smith Chairperson, Board of County Commissioners Garfield County 109 Eighth Street, Suite 300 Glenwood Springs, Colorado 81601 Community: Garfield County, Colorado Community No.: 080205 Panels Affected: 1352 Band 1352 Effective Date of This Revision: MAY 3 1 1996 102-I-A-C Dear Ms. Smith: This responds to a request for a revision to the effective Flood Insurance Study (FlS) and National Flood Insurance Program (NFIP) map for your community. Specifically, this responds to a facsimile dated May 8, 1996, from Ms. Leslie A. Hope, E.!., Project Engineer, High Country Engineering, Inc., regarding the effective FIS report, Flood Insurance Rate Map (FIRM), and Flood Boundary and Fioodway Map (FBFM) for the unincorporated areas of Garfield County, Colorado. With her facsimile, Ms. Hope provided additional information to support her March 14, 1996, request for a Letter of Map Revision (LOMR). Ms. Hope requested that the Federal Emergency Management Agency (FEMA) revise the effective FIRM and FBFM to show the effects of updated, more detailed topographic information along Rifle Creek Splitflow. All data required to complete our review of this request were submitted with Ms. Hope's March 14 letter and her May 8 facsimile. Because this LOMR solely incorporates more detailed information, fees were not assessed for the review. We have completed our review of the submitted data and the flood data shown on the effective FIRM and FBFM, and have revised the FIRM and FBFM to modify the elevations and floodplain and flood way boundary delineations of a flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along Rifle Creek Splitt low from just downstream of County Road 29 I to its divergence from Rifle Creek and along Rifle Creek from approximately 2,600 feet upstream of Old Creek Meadows Bridge to approximately 1,350 feet downstream of County Road 291. This revision incorporates updated topographic information reflecting changes in the floodplain that occurred before January 3,1986, the date of the effective FIRM, FBFM, and FIS. These data show that the flowpath of the base flood along Rifle Creek Splitflow has changed, shifting the confluence with Rifle Creek upstream of the confluence shown on the effective FIRM and FBFM. The new data also show that tlow no longer splits from the east bank of Rifle Creek Splitflow just upstream of 30th Street. Rifle Creek Splitflow now rejoins Ritle Creek at one location.