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<br />(I) <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.: 96-08-032P <br /> <br />The Honorable Robert Isaac <br />Mayor, City of Colorado Springs <br />P.O. Box 1575 <br />Colorado Springs, Colorado 80901 <br /> <br />Community: City of Colorado Springs, Colorado <br />Community No.: 080060 <br />Panels Affected: 0134 C and 0153 C <br />Effective Date of <br />This Revision: <br /> <br />JAN 2 2 1996 <br /> <br />102-I-A-C <br /> <br />Dear Mayor Isaac: <br /> <br />This is in response to a request for a revision to the effective Flood Insurance Study (FIS) and National <br />Flood Insurance Program (NFIP) map for your community. Specifically, this responds to a letter dated <br />November 8, 1995, from Mr. Dan Bunting, Regional Floodplain Administrator, Regional Building <br />Department, regarding the effective FIS report and Flood Insurance Rate Map (FIRM) for the City of <br />Colorado Springs, Colorado. Mr. Bunting requested that the Federal Emergency Management Agency <br />(FEMA) revise the effective FIRM to show the effects of the construction of approximately 2,500 linear <br />feet of storm sewer and two stormwater detention ponds along Dry Creek, and approximately 100 linear <br />feet of storm sewer and one stormwater detention pond along South Valley Dry Creek. This request <br />follows up on a Conditional Letter of Map Revision, which was issued on July 14, 1995. <br /> <br />All data required to complete our review of this request were submitted with Mr. Bunting's November 8 <br />letter, and with letters dated November 28 and December 1, 1995, from Mr. Tim Marshall, Project <br />Manager, JR Engineering, Ltd. All fees necessary to process this Letter of Map Revision (LOMR), a <br />total of $2,290, have been received. <br /> <br />We have completed our review of the submitted data and the flood data shown on the effective FIRM, <br />and have revised the FIRM to modify the elevations, floodplain boundary delineations, and zone <br />designations of a flood having a I-percent chance of being equaled or exceeded in any given year (base <br />flood) along Dry Creek from approximately 350 feet upstream of Dancing Horse Drive to approximately <br />500 feet upstream of the intersection of Orchard Path Road and Orchard Valley Road, and along South <br />Valley Dry Creek from the intersection of Orchard Path Road and Orchard Valley Road to approximately <br />200 feet upstream of the intersection. <br /> <br />Along Dry Creek, from approximately 500 feet upstream of Dancing Horse Drive to approximately <br />500 feet upstream of the intersection of Orchard Path Road and Orchard Valley Road, the base flood <br />discharge is contained in approximately 2,500 linear feet of underground pipe and two stormwater <br />detention ponds. The storage provided by the detention pond southeast of the intersection of Orchard <br />Valley Road and Woodmen Road results in a decrease in the base flood discharge downstream of the <br />pond. Although the base flood elevations (BFEs) increased by a maximum of 6 feet at the discharge point <br />of the flood control system, the base flood discharge is contained within the existing channel at that <br />location. Along South Valley Dry Creek, from the intersection of Orchard Path Road and Orchard Valley <br />