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<br />Summary of Flood Peak Discharge Estimates <br /> <br /> <br />1290 <br /> <br />1510 <br /> <br />2080 <br /> <br />230 <br /> <br />280 <br /> <br />420 <br /> <br />140 <br /> <br />170 <br /> <br />260 <br /> <br />See Catchment Area Map for Design Points <br /> <br />Hvdraulic Analvsis <br /> <br />Delineation of the approximate 100-year floodplain within the Town of Saguache for <br />Saguache Creek, Findley Gulch, and Unnamed Tributary presented on the FHAD are <br />shown on Figures 3A and 38. These approximate floodplains are shown for planning <br />purposes only, and development or construction in the area of approximate floodplains <br />should be studied by detailed topographic analysis. <br /> <br />Floodulain Mauoin!! <br /> <br />The 100-year floodplains for Saguache Creek, Findley Gulch, and Unnamed Draw within <br />Saguache are shown on Figure 4. The estimated 100-year flood which occurred in 1999 <br />along Saguache Creek did not enter the Town, and the floodplain shown on Figure 4 for <br />Saguache Creek is representative of the potential for flooding from ice jams and for flood <br />events exceeding the 100-year event The floodplain for Findley Gulch and Unnamed <br />Tributary in the Town is the caused by ponding behind the embankment caused by <br />Highway 285, Ponded water behind the embankment will likely sheet flow over the road <br />and cause only shallow flooding within the Town south of the Highway, <br /> <br />Approximate 100-year floodplains for Saguache Creek, Findley Gulch, and Unnamed <br />Tributary are shown because these reaches have not been studied with sufficient technical <br />detail to be used for floodplain delineation with any certainty. FEMA requires a detailed <br />floodplain analysis for development projects greater than 5 acres in area or more than 50 <br />units in size in approximate floodplains be performed by a professional engineer. <br /> <br />Vertical datum for the FHBM is NGVD 1929. To convert to the most recent standard, <br />NA VD 1988, add 4.54 feet to all elevations (USCOE, 2000), <br /> <br />9 <br />