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<br /> <br />:.0 \ \~ <br />:::0 . \\~ <br />, <br />:-J -'""" - -"... <br />....~':O".i....i~ 6.(:.' C <br />.,,:; .. ;~~~:k..'t;. 1.-'" - 4 ~. <br />l .~~~:E;':.ffi!tf.~JJ ~'~.l':~~ ~-"'.. <br />'i::.-",.~.;:;r..h,j(ft"'r1" ~ ,t.::!l:'.,,-.~.J' <br /> <br />,"'- <br /> <br />.... <br />...,..-...-....,--. ". ~,I <br />- Iili ..:",..r~..~, .~_ .. . ,;::...-c.... <br />- ~'-.' ,'~. <br />~,i!'f.~~> <br />~_~;!-;"'ir'lH.._";'~. :: <br />j?~'i J~".""~; <br />FI.\'AU }', riprap is poured on <br />rhe ril'erbanks und levee sides. <br /> <br />, <br /> <br /><M:' <br />"" <br /> <br />, <br /> <br />,- <br /> <br />.- <br />...~. <br /> <br />, ......., <br />./ --" <br /> <br />'" <br /> <br />ROCKS are reduced in si::e by bt'ing pur through <br />crushers. <br /> <br /> <br />JEITJES, OR TRAI.\'ISG structures, also reduce riverbank erosion. They are usually <br />cons/rue red at a dOlL'nstrt'um angle to deflect the floW from cutling din'ctly into the <br />nl.f!rbar!f,s TIlls training structure is deflecting the rjl-'er channel on the right side <br />ou'oy from the bonkllne and backwater on the left side. <br /> <br />1. Gila GravIty <br />Main Canol I <br /> <br />2. Gila ".a'"IY <br />D~~illing <br />Balln <br /> <br />3. CalifornIa <br />Slu;,..way <br />01. Imperial <br />C.m <br />DUlltinq <br />6ulns <br /> <br />S. Colo,ado <br />River <br />Channel <br /> <br />6. All <br /> <br />Ami!'r>t;ln <br />Canal <br /> <br />headworks of major canals <br />along the river. As .....'atef [10\,'5 <br />into desilting basins, it spreads <br />out and 510\..'5 down, .....hich <br />causes sediment carried in the <br />water to drop to the bottom 01 <br />desilting basins, <br /> <br />At the head works of the <br />Colorado River Aqueduct be. <br />hind Parker Darn. sediment Is <br />rcmo\.ed at a desilting basIn <br />after the .....ater is lifted uphill <br />from Lake Havasu. <br /> <br />At Imperial Dam, sediment is <br />removed at desi1tin~ basins lo- <br />cated at the headworks 01 its <br />t\..'O canals. On the Call1ornia <br />side of Imperial Darn at the <br />headworks of the AII.,\mcrican <br />Canal. water f1o.....s Into desil[. <br />ing basins. The flo\..' spreads <br />out and slows down In lhe <br />desilting basins, causing the <br />sediment carried in the water <br />to drop to the botlom of the <br />basins. Bi!:l rotating scraper <br />arms move the sediment into a <br />series of collection pipes and <br />into the California Sluiceway <br />below the dam. <br /> <br />Water entering the GII., <br />Grin ily ~1aln Canal head works <br />also passes through a desilting <br />basin before it enters the Gila <br />Gravity !\taln Canal. The Gd., <br /> <br /> <br />I.HPERIAL VA.11 desiff/ng basinS allow l.L'a!er 10 spread ouI <br />,lfld slou.. dOIl"n. u..hich enab{<!s silt to sink to the borrom of <br />Ihe basin. Thr! c'eslired water then flolL's ouf of the baslOs <br /> <br />dou'nslream 10 .\lexlco, or through the AlI.American Canal <br />[0 south..rn Cll/lfornia. or 10 the Welfron-.\Johau,'k \ 'QUe\' da <br />the Gila Grat:lly .1IalO Canal. - <br />