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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />SECTION I <br />I NTRODUCTI ON <br /> <br />This study was undertaken for the SilverCreek Development Company to satisfy <br />a request from Grand County and the City of Granby to define the IOO-year <br />floodplain for the Fraser River and Tenmile Creek. SilverCreek personnel <br />provided field surveys, bridge data, and photos. New topographic mapPing) <br />was done by Intra Search. This new data was required to update an earlier <br />study done in 1973. <br /> <br />The purpose of this study is to determine the flood profile and floodplain <br />boundaries for the IOO-year runoff events on the Fraser River and Tenmile <br />Creek along their reaches running through the SilverCreek property. Because <br />neither Granby nor Grand County are part of the National Flood Insurance <br />program, this report is not part of a Colorado Water Conservation Board <br />floodplain study. Only the IOO-year profile has been prepared, and the <br />report itself is not as detailed as would be a CWCB study. However, during <br />preparation of this study CWCB criteria have been followed wherever <br />applicable, and personnel from the CWCB have been consulted regardin9 the <br />hydrology and hydraulic analysis. If at a future time the local governments <br />wish to do so this reportcould provide the b~js of an officiaJ flood <br />hazard area delineation study. Copies will be sent to the CWCB and the <br />Federal Emergency Management Agency for review. <br />