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<br />. <br /> <br />- <br /> <br />UNITFll STATES <br />DEPilRTiEq OF '!BE INTERIOR <br />BUREAU OF RECLA.\lATIO:,' <br />Region 4 <br />Post Office Box 360 <br />Salt Lake City 8, Utah <br /> <br />March 8, 1949 <br /> <br />This report summarizes progress made on investigation in Colorado <br />during February 1949. <br /> <br />- <br />(1) Progress of Investigations <br /> <br />(a) New investigations proposed: None <br />(b) Revision of current program: None <br />(0) Progress of current investigations (detail listing follows): <br /> <br />Colorado River Storage Project, Colorado-New Mexico-Utah-Wyoming <br /> <br />A considerable portion of the appendix on Engineering, Designs and <br />Estimates for the interim report was prepared. Work progressed on the <br />Kreparation of the appendix on hydrologic studies for the, interim report. <br />evisions were made to modified historical flow and ultimate flow compu- <br />tations, and tables were prepared for inclusion in the appendices. Reser- <br />your operation studies were continued. Combined power studies were con- <br />tinued and revisions were made to previous studies where neceBs~ry. A <br />tabulation of financial analysis and physical data for other projects <br />utilizing upper basin water was prepured for inclusion in the interim <br />report. Revisions to the Regional Director's letter and Substanti~ting <br />Report were made in accordance with reconsiderations made by the Chief, <br />Hydrology Division, and the Regional Office. Considerable progress was <br />also made toward completion of the appendices. The Fish '-,nd Wildlife <br />Servi ce report entitled "A Preliminary Report em fj ':: c.nd Wildlife <br />Resources in Relation to the Colorado River Cccl'age Project, Colorado <br />River and Tributaries above L8" Ferry, Arizona," has been received. <br /> <br />Flemin!'; Gor!';e Unit.. Jtah-Wyoming <br /> <br />..... <br />(., Modified historic,,'- .."tel' supply and ultimate water supply <br />to.:> at this damsi te wer~ :'evised. Revisions to power studies made <br />~ necessary by revisions to water supply were accomplished. <br /> <br />Echo Park Unit, Colorado.Utah <br /> <br />j,iaps, charts, and tables were prepured for inclusion in the <br />Interim Report. I<Clnor revisions to modified historical flow and <br />to ultimate flow computations were made as a result of review of <br />the preliminary draft of Interim Report by the CUef, Hydrology <br />Division and by Regional Office porsonnel. Revisions in computed <br />