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<br />" <br /> <br />"< <br /> <br />comprehensive finai report on the scope, methods, and results of the <br /> <br />investigation will be submitted to the Arkansas River'Compact <br /> <br />Administration during October 1977. <br /> <br />Phase I <br /> <br />PROBLEM: <br /> <br />Concern has been expressed regarding the administration of <br /> <br />the Arkansas River from Pueblo Reservoir to John Martin <br /> <br />Reservoir during and following the flood of August 2, <br /> <br />1976. During .this flood theg~tes at Pueblo Reservoir <br />I <br /> <br />were closed in order to prevent downstream flooding. <br /> <br />The flood waters were.later released at: a reduced discharg~ <br /> <br />rate. <br /> <br />OBJECTIVE: The objective is to develop routed flood hydrographs of <br /> <br />the August 2 event at several downstream locations. <br /> <br />The hydro graphs will be developed on the basis that <br /> <br />the flood was not stored in Pueblo Reservoir. All <br /> <br />major tributary inflows and diversion outflows would be <br /> <br />accounted for in the study reach. <br /> <br />APPROACH: <br /> <br />An existing reservoir release routing model will be <br /> <br />modified to accommodate travel time and flood conditions <br /> <br />in the study reach. All data on major tributary inflows <br /> <br />and diversion outflows during and immediately after this <br /> <br />flood will be compiled. The flood hydro graph as determined <br /> <br />by the routing model will be analyzed with. regard to <br /> <br />Colorado water law, interstate compact rules, and current <br /> <br />irrigation practices. <br /> <br />2 <br />