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<br />Zone AE <br /> <br />Zone AE is the flood insurance rate zone that corresponds to the loo-year floodplains that are <br />determined in the FIS by detailed methods. Whole-foot BFEs derived from the detailed <br />hydraulic analyses are shown at selected intervals within this zone. <br /> <br />Zone X <br /> <br />Zone X is the flood insurance rate zone that corresponds to areas outside the 500-year <br />floodplain, areas within the 5oo-year floodplain, areas of loo-year flooding where average <br />depths are less than 1 foot, areas of tOO-year flooding where the contributing drainage area is <br />less than t square mile, and areas protected from the tOO-year flood by levees. No BFEs or <br />depths are shown within this zone. <br /> <br />6.0 FLOOD INSURANCE RATE MAP <br /> <br />The FIRM is designed for flood insurance and floodplain management applications. <br /> <br />For flood insurance applications, the map designates flood insurance rate zones as described in <br />Section 5.0 and, in the tOO-year floodplains that were studied by detailed methods, shows <br />selected whole-foot BFEs or average depths. Insurance agents use the zones and BFEs in <br />conjunction with information on structures and their contents to assign premium rates for flood <br />insurance policies. <br /> <br />For floodplain management applications, the map shows by tints, screens, and symbols the <br />100- and 5oo-year floodplains, floodways, and locations of selected cross sections used in the <br />hydraulic analyses and floodway computations. <br /> <br />The countywide FIRM presents flooding information for the entire geographic area of <br />Routt County. Previously, FIRMs were prepared for each incorporated community and the <br />unincorporated areas of the county identified as floodprone. This countywide FIRM also <br />includes flood hazard. information that was presented separately on Flood Boundary and <br />Floodway Maps, where applicable. Historical data relating to the maps prepared for each <br />community are presented in Table 4, "Community Map History." <br /> <br />7.0 OTHER STUDIES <br /> <br />Town of Oak: Creek <br /> <br />A report entitled "The 1984 Flood, Commemorative Issue, Oak Creek, Colorado" was written <br />by a local citizen of Oak Creek to explain what occurred during the May 1984 snowmelt runoff <br />and dam failure flood. It also details some flood history and contains numerous pictures <br />showing damages caused by the 1984 flood (Reference 9). <br /> <br />56 <br />