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<br />. . <br /> <br />CHANGES ARE MADE IN DETERMINATIONS OF BASE FLOOD ELEVATIONS FOR THE CITY AND <br />COUNTY OF DENVER, COLORADO, UNDER THE NATIONAL FLOOD INSURANCE PROGRAM <br /> <br />On September 28, 1990, the Federal Emergency Management Agency (FEMA) <br /> <br /> <br />identified Special Flood Hazard Areas (SFHAs) in the City and County of <br /> <br />Denver, Colorado, through issuance of a Flood Insurance Rate Map (FIRM). <br /> <br />The Mitigation Directorate has determined that modification of the <br /> <br />elevations of the flood having a 1-percent chance of occurrence in any given <br /> <br />year (base flood) for certain locations in the City and County of Denver is <br /> <br />appropriate. The modified base (100-year) flood elevations (BFEs) revise the <br /> <br />FEMA FIRM for the community. <br /> <br />The changes are being made pursuant to Section 206 of the Flood Disaster <br /> <br />Protection Act of 1973 (P.L. 93-234), and are in accordance with the National' <br /> <br />Flood Insurance Act of 1968, as amended (Title XIII of the Housing and Urban <br /> <br />Development Act of 1968, P.L. 90-448), 42 U.S.C. 4001-4128, and 44 CFR <br /> <br />Part 65. <br /> <br />A hydraulic analysis was performed to incorporate a more detailed <br /> <br />hydraulic analysis to correct the effective hydraulic model and has resulted <br /> <br />in a revised delineation of the regulatory floodway, a reduction in SFHA, and <br /> <br />lower BFEs from West 1st Avenue to S. Qul.tman Street. <br /> <br />The table below <br /> <br />indicates the modified BFEs for several locations along the affected length <br /> <br />of Weir Gulch. <br /> <br /> Existing BFE Modified BFE <br /> Location (Feet) (Feet) <br />Upstream of South Perry Street *5,288 *5,285 <br />Upstream of Alleyway located just *5,297 *5,289 <br />downstream of S. Quitman Street <br />Upstream of S. Quitman Street *5,298 *5,291 <br />Property northwest of the <br />intersection of West 18t Avenue <br />and S. Quitman Street *5,298 **1 <br />S. Quitman Street between West 1st <br />Avenue and W. 2nd Avenue *5,298 **1 <br /> <br />*Referenced to National Geodetic Vertical Datum (NGVD), rounded to nearest <br />whole foot <br />**Depth in feet, referenced to NGVD, rounded to the nearest whole foot <br />