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<br />C) <br /> <br />,- <br /> <br />,- l <br /> <br />~ <br />w __~--- <br /> <br />-.--~--~------ Marc~ 8, 1945 <br /> <br />Colonel L. Rosenberg <br />Corps of U.S. Engineers <br />District Engineer <br />Hbuquerque, New Mexico <br /> <br />Re: Operation Caddoa Reservoir <br /> <br />Dear Colonel Rosenberg: <br /> <br />---,...--'. .~ <br /> <br />This will acknor.ledge receipt of your letter of Februery 26th, <br />~ith. respect to the operation of Caddoa Reservoir as a ~tiple purpose <br />project, pending the installation of the spillway gate~ tnd the comple- <br />tion of works designed for the protection of the Fort Lf~n Reservation. <br /> <br />. In this connection it is noted that y~~, dee~~ necessary to <br />reserve the total.present capacity of the rese . 0 7~OOO acre feet, <br />for flood control. . ~~ <br /> <br />.l'Ihile it is appreciated that ruction of t John Martin <br />dam wes primarily for flood control, e ollection that the Act <br />authorizing the construction of the t d that a specified amount <br />of the bottom capacity of the rese e set aside.end reserved <br />for conservation uses. . <br /> <br /> <br />scious of the difficulties <br />the 0 tion of Cad<ioa .P.eservoir <br />e interest of both flood control <br /> <br />. <br /> <br />As state Engineer <br />confronting the Corps of <br />in. its present uncomplet <br />and r.ater conservation. <br /> <br />The inflow into, <br />flood of April May <br />of record, bo ~n peak flow, <br /> <br />which resulted from the great <br />~as, I beli~r9, ~~~ to the largest <br />::en vo1u."Tle. <br /> <br />there been~ stor~se in Caddoa Reservoir 90,000 ecre feet <br />of water eq1ti.~alent to a ;gtge height of 5812, lit the time that flood <br />occurred, an 'Q.ad the six}lalves in the dam been di5c~arging at t:,s rc:.te <br />of 10,000 see ~'&..f~~Ch ross about their combined ca;:>acities at the <br />gage height in '1 ., the total qUE..ntity of water iro:Jounde:'l would have <br />been but 258,500 acre feet computed on a daily basis, or, 11,500 acre <br />feet less than the capacity of the conservation pool. <br /> <br />, <br /> <br />ASSQ~ng that the original capacity of the reservoir had been <br />reduced through sedimentation Qy as much as 11,500 acre feet, storage <br />in the reservoir resulting from that flood would sc~rcely hfve reached <br />the crest of tile concrete spillway. . <br /> <br />--- - ---. ---- <br /> <br />. <br />