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<br />eRBsep, Cooc/tella Canal Uni. <br /> <br />3 <br /> <br /> <br />Hea~y vegetation growth along unlined section or canal <br /> <br />3. Ac:quire and de\clop ahout 363 ar.res of additional <br />land 81Ij<t('eJlt Lo the Salton Sea National WilcUife <br />Uduge through the conslrudion of rlike8. ponels. and <br />marshes. <br />4. Purchase the Oasis Tral'l of land whidl ('onlains high <br />wildlife ,'allie, is rledicaled to pulJli(: ownership. and <br />will he maintained in its present condition. <br />5. Ile\elop and 160-af're WiSler Hahilat Area h)' ('on. <br />structing perimeter rottdl'l. le"'ees. ponds. ami suppl)' <br />ditdws to pru\'ine marsh hahitat suitable for wildlife. <br /> <br />Attendant Facilities <br /> <br />Power lran~mi!"sion lines were ('Onslruded from existing <br />powerlines. They prO\'irle energy to elet'lril' motors to <br />operate gales and scnsor~' devit,c~ lorate(! at ('ontrol <br />points for regulating and measuring f1ow~. <br /> <br />The rhed. gate:>; in the l'anal have motorized ('ontrols <br />whidl also match the sensory gate opening equipment. <br />This equipment was furnished am! in.stalled by the <br />emu'hella Valley 'Vater Distri('t. ~'lonitoring equipment <br />was installen at all dle(~k ~truclures, and rt'mote ('ontrol <br />sen~or~' equipment measure~ the ratc of flow through <br />each of the two parshall flumes loeaten al the inlet and <br />outlet transition of the 49-mile lined portion of the <br />canal. <br /> <br />The entire length of the relo('ated ('anal is flanked b~ <br />two operating roads. A 20-foot.wide gra\{.1 surf.ICC road. <br /> <br />usef! for operations and maintenallt'e. was t.'on~truded <br />along the southwl:"!-it hank of the new canal; and a 16.foot <br />ummrfac.:ed servi(.e road wa~ graded along the northea:::.t <br />hank. Ahutmenb were pro\'iden on cadl side of the <br />('anal. about 2.000 feet downstream from the llIrnout, <br />for a fulure "chide brid~e to pro"ide ac-cess to a pro- <br />posed recreation area heing planned by the Bureau of <br />Land Management. <br /> <br />DEVELOI'MENT <br /> <br />Hie.to~' <br /> <br />(Set' Desahing Complex Unit brochure for history of <br />de,"elopment.) <br /> <br />I..,,"estigotions <br /> <br />Sinl'e the Coachella Canal was~ first placed into sen"ice in <br />1949. numerous tests. studil'~. and sun'ey~ ha'"e ueen <br />t:onducted to determine the effectivencss of the waterway <br />and the appro:\imate amount of watcr lo~l by seepage <br />along the entire 12:3-l11ile length. S(',"eral official ~tlldie8 <br />8nd reports ha'"e heen Pllhli!ihccL <br /> <br />Aulhorization <br /> <br />The Coat'hella Canal Unit was authorized by the Colo- <br />rado Rh"cr Basin Salinity Control Ad. Title I, of Pub. <br />Ii., Law 93-320, 93rd Congre's. H,R, 12165. dated June <br />24. 1974 (88 Stal. 266). An amendment to the act pro- <br />,'ided fund.s for mitigating. fish and wildlife IO:'ises as- <br />sodated with replal'ing the initial -19 miles of the Coa- <br />('hella Canal. <br /> <br />Conslru("lion <br /> <br />Construdion of the relocated portion of the Coa('hella <br />C8nal. in('lurling ad'"an('e planning and rt'('onstrudion <br />a('\i\"ilic~, rt:'quired ahollt 3 years. Construction slarlen in <br />1979. and was ('ompleted in 1982. <br /> <br />Operating Agencies <br /> <br />Prior to the new lining, the lmperillllrrigalion Di~trict <br />operated the first 49 mile!i of the original canal, ami the <br />Coal'hella Valley Water District operated and maintained <br />Ihe remaining 7-1 miles. Upon ('ompletion of the lining <br />project. Ihe operation and maintenant'e of the entire <br />123-milt: length of the ('anal was assumed b~ the Coa- <br />l'hella Valle~' 'Water Distrirl. <br /> <br />Fish and wildlife mitigation mea!'ures arc operated by <br />fish 811(! wildlife agel1cie~ at their e:\pense. <br />