Laserfiche WebLink
<br />::DhL'\LY'\"" <br /> <br /> <br />Federal Emergency Management Agency <br />Washington, D.C. 20472 <br /> <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br /> <br />IN REPLY REFER TO: <br />Case No.: 99-0S-193P <br /> <br />The Honorable Steve Ward <br />Chairperson, Arapahoe County <br />Board of Commissioners <br />5334 South Prince Street <br />Littleton, CO 80166-0060 <br /> <br />Community: Arapa!1oe County, Colorado' <br />Community No.: OSOOl1 <br />Panel Affected: OS005C04S0 J <br />E~ective.~ate of AUG 26 1999 <br />This RevISIon: <br /> <br />102-I-A-C <br /> <br />Dear Mr. Ward: <br /> <br />This responds to a request that the Federal Emergency Management Agency (FEMA) revise the effective <br />Flood Insurance Rate Map (FIRM) and Flood Insurance Study (F1S) report for Arapahoe County, Colorado <br />and Incorporated Areas (the effective FIRM and FIS report for your community), in accordance with <br />Part 65 of the National Flood Insurance Program (NFIP) regulations. In a letter dated March S, 1999, <br />Ms. Terri L. Fead, P.E., Taggert Engineering Associates, Inc., requested that FEMA revise the FIRM and <br />FrS report to show the effects of more detailed topographic data; a revised hydraulic analysis of the existing <br />culvert at East Arapahoe Road; construction of a bridge at East Peakview A venue, a culvert under a <br />pedestrian bridge just downstream of East Peakview Avenue, and a culvert at East Caley Avenue; and <br />channel modifications, including grading, between East Arapahoe Road and East Caley Avenue. <br /> <br />All data required to complete our review of this request were submitted with letters from Ms. Fead. <br /> <br />We have completed our review of the submitted data and the flood data shown on the effective FIRM and <br />FIS report. We have revised the FIRM and FIS report to modify the elevations and floodplain and <br />floodway boundary delineations of the flood having a I-percent chance of being equaled or exceeded in <br />any given year (base flood) along Cottonwood Creek from just downstream of East Caley Avenue to just <br />downstream of East Briarwood Avenue. As a result of the modifications, the base flood elevations (BFEs) <br />for Cottonwood Creek and the widths of the Special Flood Hazard Area (SFHA), the area that would be <br />inundated by the base flood, and the regulatory floodway increased in some areas and decreased in other <br />areas. All affected property owners have been notified. During our review, we discovered that the <br />Floodway Data Table for Cottonwood Creek had been inadvertently omitted from the effective F1S report, <br />that East Peakview Avenue was inadvertently labeled as East Weaver Avenue on the FIRM, and that East <br />Parkview Avenue does not exist at the location shown on the effective FIRM. In addition, our review of <br />the Letter of Map Revision (LOMR) issued January 15, 1996, revealed that "base flood contained in <br />culvert" labels were inadvertently omitted along Cottonwood Creek at East Briarwood and East Easter <br />Avenues. This LOMR includes the Floodway Data Table, correct road names and orientations, and <br />appropriate culvert labels. The modifications are shown on the enclosed annotated copies of FIRM <br />Panel(s) OS005C0480 J; Proftle Panel(s) 45P, 46P, and 47P; and affected portions of the Floodway Data <br />