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<br /> <br />CERTIFIED MAIL <br />RETURN RECEIPT REQUESTED <br /> <br />IN REPLY REFER TO: <br />Case No.: 96-08-047P <br /> <br />The Honorable Ross Aragon <br />Mayor, Town of Pagosa Springs <br />P.O. Box 1859 <br />Pagosa Springs, Colorado 81147 <br /> <br />Community: Town of Pagosa Springs, <br />Colorado <br />Community No.: 080019 <br />Panel Affected: 0005 C <br />Effective Date of <br />This Revision: J A N 2 3 1996 <br /> <br />102-I-A-C <br /> <br />Dear Mayor Aragon: <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 27, 1995, from Mr. Jay R. Harrington, Town Administrator, Town of Pagosa Springs, <br />regarding the effective FIS report and Flood Insurance Rate Map (FIRM) for the Town ofPagosa Springs, <br />Colorado. Mr. Harrington requested that the Federal Emergency Management Agency (FEMA) revise <br />the effective FIRM to show the effects of the placement of 42 rock structures along the San Juan River <br />from approximately 3,440 feet downstream of Hot Springs Road to approximately 2,700 feet upstream <br />of Pagosa Street. This request follows up on a Conditional Letter of Map Revision, which was issued <br />on March 15, 1994. <br /> <br />All data required to complete our review of this request were sUbmitted with Mr. Harrington's <br />November 27 letter and a facsimile dated December 20,1995, from Mr. Don R. May, P.E. Because this <br />Letter of Map Revision (LOMR) shows the effects of a publicly sponsored flood-control project that <br />reduces flooding to existing development, fees were not assessed for the review. <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 and floodplain and floodway boundary delineations <br />of a flood having a I-percent chance of being equaled or exceeded in any given year (base flood) along <br />the San Juan River from approximately 3,440 feet downstream of Hot Springs Road to approximately <br />2,700 feet upstream of Pagosa Street. <br /> <br />As a result of the channel modification project, the base flood elevations (BFEs) decreased from <br />approximately 3,440 feet downstream to approximately 1,125 feet downstream of Hot Springs Road and <br />from approximately 230 feet upstream of Hot Springs Road to approximately 2,700 feet upstream of <br />Pagosa Street. The maximum decrease in BFE, 4 feet, occurs approximately 925 feet upstream of Pagosa <br />Street. The BFEs increased from approximately 1,125 feet downstream of Hot Springs Road to <br />approximately 230 feet upstream of Hot Springs Road. The maximum increase in BFE, 2.5 feet, occurs <br />approximately 250 feet downstream of Hot Springs Road. The width of the Special Flood Hazard Area <br />(SFHA) and floodway increased and decreased along the revised reach. The maximum decrease in SFHA <br />width, 330 feet, occurs approximately 360 feet upstream of Hot Springs Road. The maximum increase <br />in SFHA width, 75 feet, occurs approximately 800 feet downstream of Hot Springs Road. The maximum <br />decrease in floodway width, 170 feet, occurs approximately 800 feet upstream of Hot Springs Road. The <br />