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<br />t::l7.'O
<br />
<br />the main stream, including river channelization
<br />and elimination of phreatophyresj the Bureau of
<br />Reclamation program offers reasonable and feasi-
<br />ble means for conserving water now being con-
<br />sumed non-benefici,lly.
<br />
<br />"Even more water could be salvaged from the
<br />Colorodo River, bur the Boord recognizes, '5 does
<br />the Bureau of Reclamation, that the conflicting
<br />demands of the various classes of users must be
<br />weighed in :mr management program for the
<br />river. The program proposed in the three reports
<br />seeks a re"onable babnce 'mong the purposes of
<br />water salvagc1 ri,,'er coon'ol, enhancement of rec-
<br />reational opportunities, and mitigation of fish and
<br />wildlife losses; it is consistent with an objective
<br />of H.R. 4671, , pending bill endorsed by Gover-
<br />nor Brown and the Colorado Ri,'er Boord. Sec-
<br />tion 305 of that bill ptovides in patte
<br />
<br />The m,in stre'm salv'ge unit sh,1l include
<br />programs for water salvage along and adjacent
<br />to the main stream of the Colorado River. . .
<br />Such programs shall be consistent with main-
<br />ten,nce of a reason,ble degree of undisturbed
<br />h,bitat for fish ,nd wildlife in the orea . . .'
<br />
<br />"The Colorado River Boord endorses the pro-
<br />gram of the Bureau of Reclamation and urges its
<br />implementation as soon as possible."
<br />
<br />Plate 6 shows the location of the three divi-
<br />sions, and Table 7 summarizes statistical items
<br />of the proposed river management programs.
<br />
<br />Table 7
<br />
<br />SUMMARY OF U. S. DEPARTMENT OF THE INTERIOR
<br />PROPOSED RIVER MANAGEMENT PLANS'
<br />TOPOCK GORGE, PARKER AND YUMA DIVISIONS
<br />
<br /> Topvck Parka Yuma
<br /> Gorge
<br />lUm Division Divjsion Dit'ision
<br />Reach___,_ 14 miles 44 miles 21 miles
<br /> Topock to Headgate Laguna
<br /> Lake Rock Dam Dam to
<br /> Havasu to Palo Morelos
<br /> Verde Dam Dam
<br />Channelization_ _ 14 miles 32 miles 17 miles
<br />CCJIlstruction
<br />Periodn_____ _ 7 rears 7 rears 7 rears
<br />Water Sah-age- 28,200 24,200 17,200
<br />AF/yr.________
<br />
<br />Total
<br />79 miles
<br />
<br />63 miles
<br />
<br />7 rears
<br />
<br />69,600
<br />
<br />Estimated Total
<br />Costs by
<br />Feature:
<br />Channelization_ $3,603,000
<br />Fish & Wildlife_ 717,000
<br />Recreation.__ _ _ 200,000
<br />
<br />$9,114,000
<br />2,159,000
<br />
<br />$2,817,000 $15,554,000
<br />1,168,000 4,044,000
<br />416,000 616,000
<br />--
<br />$4,421,000 $20,214,000
<br />
<br />$4,520,000 $11,293.000
<br />
<br />An'rage Annual
<br />COSL____
<br />
<br />$229,000 $515,000
<br />
<br />$221,000 $966,000
<br />
<br />Estimated Annual
<br />BenefitL __ __ _ _ $780,000 $948,000
<br />
<br />$966,000 $2,694,000
<br />
<br />Benefit-Cost Ratio 3.4 to I 1.8 to 1
<br />
<br />-I,) to I
<br />
<br />2.8 to 1
<br />
<br />. Dr~ft Report, Comprehen~i~e Ri"er r..hn~gemenL Pl~n, Lower Color~do R.ver.
<br />Topock Gorge Divllion. dued April 1966.
<br />Dr~ft .Report. Comprehensive Pbn. Lower Colorado River Ch~nneli"Ution.
<br />Pulr.e.r D~vi~iol\, date.:!. Sep\embu 1%5,
<br />Dr~ft Report, Comprehemive River \r~n;lgemelll PI~n, Lower Co]or~do River,
<br />Yuma. DIvision, dOlLed April 1966.
<br />
<br />37
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