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<br />COLORADO-BIG THOMPSON PROJEOT
<br />
<br /> Alti- Spillways
<br />C,." Cres~ tude Volume
<br />width lef!gth of in Outlet works
<br /> ;n on crest cubic' Capacity
<br />feet feet in yards TyPe inllecond-
<br /> feet feet ,
<br />- ~
<br /> 40 1,150 7,960 4,406,000 Concrete overflow-three fa. 25,000 at One tunnel at right abutment, 1,533 feet long, luw~
<br /> dial gfttel:>, ea.eb. 25 x 22 crest iug a circular cross section, 18 feet in diaroeooi at
<br /> feet, at left abutment. eleva- upper end and a horaesho(l section, 15 eet
<br /> t ion 9 inches x 23 feet 3 inllhes at Iowa end, h{maing
<br /> 7,928. two ~nstocks, each 102 inches in diameter, con-
<br /> trolled by two needle vttJ.ves, 42 inches each, to
<br /> bypass watel' around turbines.
<br /> 45 885 8,290 2,901, BOO Concrete overflow /lpillway 12,000___ One tunnel, 1,055 feet long, on left abutment! con.
<br /> oontwlled by two radial trolled by two hollow jet valves, one 30 mchmi
<br /> gate\ esch 21 x 20 feet, at and one 14 inches,
<br /> left a utment.
<br /> 30 1, BOO 8,290 785, 700 None~ _ ____ __ _ _ ~_ __ __~ _ ~~_ NOU(L_~~
<br /> 30 4,430 8,290 945,000 __do.~ ~ ~~_ ___ ~_~__~___~~_. ._do_____
<br /> '0 600 8,375 210, 000 Conerate overflow contwlled 8,OQO_~__ None.
<br /> by two ,radial gates, each
<br /> 18 x 18}Ueet, withasluice~
<br /> way below the Hoor whiell
<br /> is 30 ,,30/eet.
<br /> '0 240 8,265 .7,643 Concrete overfiow___n_~_n 55L____ Do.
<br />.
<br /> '0 700 8,050 28,41Q None_ ___~ _____ _ __ __ ~ ~___~ NOlle~_n Simple outlet to conduit without gates.
<br /> 30 000 8,050 32, 080 ___.___~_M__~______________ ----------
<br /> 30 1,850 7,481 300,000 Nonc_ ___~_ ______~________ NOnlL___
<br />: 35 1,500 5,768 2, 218, 000 __do~_ _ __ _ _ ~__ _ __ _ _ ~ _ _ _ _~_ hdC_on
<br /> , 30 1,140 5,768 490,000 _~do_ _ ___ _ _~ _ _ _ __ _ _ _ _ __ __~ __dO__~h
<br /> 30 1,400 5,768 218,000 __do__ _______________~____ __do_____
<br /> 35 1,610 5,440 1, 890, 000 _ _do_~ _ __ ~ _ _ _ __ _ _ _ _ _ _ __ _ _ ~ Nooe_n~ One conduit, 1,200 feet long, with a capacity of
<br /> 1.500 second-feet, placed in an open c~t. One
<br /> , ciroular concrete llection at upper end, 8.5 feet
<br /> in diameter, and two horse8boe sections, 10 feet
<br /> eacb, at the lower end to house two pipeBde each
<br /> 72 inches in diameter. Conduit is eontro d by
<br /> two high pressure gates, each 5 x 5 feet, and two
<br /> 8, 288, 000 hollow jet valves, each 72 inches in diameter.
<br /> 40 1.420 5,'440 ~ .do_ _ ~ _, _ _ _ __ _ _~ _ _ _ ~ ~_ __~ ~_do_~_ __ One tunnel, 1,250 feet 1on9' controlled by a wedge
<br /> gate valve, 80 inches in iameter, and one hollow
<br /> ~~do.___~ jet valve, 14 inches in diameter.
<br /> 4" 1,115 0,440 2,213,000 ~ _do_~ _ _~ _ M _ ~_ _ _ _ __ _ __ _~ _. ~one.
<br /> 40 1,215 5,440 S, 004. 000 _ _do_~ _ __ ~ _ ___ ~ __ _ __ _ _~ ___ __do_____ Do,
<br /> 26 280 6,486 6,000 ~ ~do__ __, _ _ ~_ __ __~ _ _~ __~__ __dO___n Do,
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