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<br />JOI nl ~IMTI~ LJAM A;W RESERVOI R
<br />ARK~,SAS RIVER, r.OLORAOO
<br />
<br />PERTI~ENT nATA
<br />
<br />LJRAUAGE AR12A:
<br />Total Jrainage area
<br />Sediment contributing drainage area
<br />
<br />lR,915 square miles
<br />17,080 s'1uare miles
<br />
<br />RrsrRVOl n LJATA:
<br />
<br />Feat ures
<br />
<br />Elevation
<br />(Ft., m.s.l.)
<br />
<br />Original
<br />Area Capad ty
<br />(Acres) (Ac.-Ft.)
<br />
<br />1972
<br />Capad ty
<br />(Ac. - Ft.)
<br />
<br />Area
<br />(Acres)
<br />
<br />Flood control J,S51 - 3,810 17,875 278,639
<br />storage
<br />Conservation 3.764.25 - 3,SO;1 12,161.' 423,13(,
<br />storage
<br />
<br />17,630
<br />
<br />1270,375
<br />
<br />11,655
<br />
<br />350,951
<br />
<br />Tm-AL
<br />
<br />71l1,775
<br />
<br />(,21,326
<br />
<br />DN I:
<br />
<br /> Item Concrete LJam Earth LJam South \':ing ;,orth IHng
<br />Type Overflow section Earth fi 11 Eartllfi 11 Earth fill
<br />Lengtll (overall) , ft. 1,(,44 2,631 5,8117 3,700
<br />Crown width, ft. (Roadwar) 21 30 30 30
<br />Crest elevation 3,R83 3,3RO 3,880 3,8RO
<br />Haximum height, ft. 118 115 IOn 20
<br />Freehoard, ft. l.3 10 10 10
<br />
<br />SPILLWAY (Controlled):
<br />Tainter gates, numher anJ si ze
<br />Spillway crest, elevation
<br />Top of gates, elevation
<br />Capacity, c.f.s.
<br />
<br />Sixteen 64' x 30'
<br />3,840
<br />3,8711
<br />639,000
<br />
<br />r.D,WlIITS (Slide gate controlleJ):
<br />
<br />Total LJiscllarge Capacity
<br />at Pool Elevation 3,870
<br />
<br />Invert
<br />Elevation
<br />
<br />Purpose clumher Size
<br />Sluicing ,1 6' x 7' ()It
<br />Regulation 1 4' x 4'
<br />TOTAL (,
<br />
<br />3,7(,4 .25
<br />3,766.0n
<br />
<br />14,150 c. f.s.
<br />2,250 c. f. s .
<br />
<br />16,400 c.f.s.
<br />
<br />I Includes 10,000 acre-feet of recreation and wildlife storage made
<br />availaule i,y Public Lal; 89-291\.
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