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<br />44 <br /> <br />1811 <br />METROPOLITAN WATEH. DlSTHICT <br /> <br />1 <br />I <br /> <br />TAlllE is <br />GENE WASH AND COPPER BASIN DAMS <br />GENE WASH <br /> <br />COPPER HAS1N <br /> <br />Contrnetar ....__n...__..___._....__m..__...._m.....__m_...mnnm.... <br />Contract awarded ....._...__........_mm...mmh.....mum.. . <br />Contract completed .._________..___..,___....___..___..... <br />First wol{'f in reservoir...m....n.... ...__...._m......... <br />Height of Jam (maximum), fed <br />Length (crest), feet ._________........... .....mmnn.... <br />Crest thickness, (eet .mm..........____.. <br />B[l~e thickness. feet __......mm..... <br />Area {]f reservoir. acres .___m...... <br />Capacily of reservoir, acre feel m.. <br /> <br />J, F. Shen Co., lnc. <br />~f[Jn.:h 26. 1l)37 <br />August 15, 1938 <br />....... January 7. lY31J Jallu:lrY 31, 1939 <br />13H 210 <br />4:JO 254 <br />o 5 <br />26.5 35 <br />224 425 <br />6.300 2-1.200 <br /> <br />D.:I11l <br /> <br />Excflvation, cubic yards m.......mm..... ''''0000__ ,". <br />Concrete, cubic yards ___........._____..... <br />MCI'llwnrk find reinforcement steel, Ib!; <br /> <br />9,061 <br />14,417 <br />380.BOO <br /> <br />11.685 <br />17.338 <br />4iR.302 <br /> <br />... <br />! <br />I <br />I <br /> <br />Spillway <br /> <br />Excl\vation, cubic yards ,nnnm... <br />Con~re(e, cubic yards "mmu" <br />Backfill, cubic yards mn......mm......... <br />Metalwork and reinforcement steel, Ibs.. <br /> <br />4,763 <br />4.725 <br />50.3 <br />59,603 <br /> <br />8.137 <br />2.050 <br />171 <br /> <br />Dike <br /> <br />Excavation ...n..nmm....', <br />EJ.rlhfill. CUllic yanlsm.. ..nmnn....... <br />Con~rete. cubic yards uu_ <br />Reinforcement steel, Ibs. .......m......... <br /> <br />~,361 <br />8,710 <br />926 <br />72A30 <br /> <br />plant was placed on line and started pumping iuto the Copper Basin <br />No.1 tunnel. At 11 :00 a.m. on the 31st Colorado River water began <br />filling Copper Basin. As the water level rose readings were t"ken <br />of the deflection in the Copper Basin arch d"m. With w"ter level <br />up to elevation 1025.85 or 2.15 feet below the spillway lip the <br />maximum deflection was YlIi of an inch. On the morning of March <br />13th one of the three outlet gates was opened sufficiently to release <br />into the Whipple Mountain tunnel 10 c.f.s. of Colorado River water <br />on its way to the third pump lift at Iron Mountain. <br />Final quantities and other data concerning the dams are given <br />in table 15. The total costs of dams and appurtenant works as of <br />June 30, 1940 are $19,791.59 for exploratory work, $392,210.02 at <br />Gene Wash, and $644,546.62 at Copper Basin. <br /> <br />PUMPING PLANTS <br /> <br />ConstTuction <br /> <br />The location and a general description of the pumping plants and <br />major equipment were given in the history and first annual report. <br />