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<br />(sri.. 3v~ )C7SC <br /> <br />'iI <br /> <br />I, <br />'., <br /> <br />NARHUwS UNIT <br />SOUTH PLATTE DIVISION <br />,'llS.:0lJRI RIVJ<;R BASIN PROJeCT <br /> <br />The NE'rrows Um.t of the ,'Jissoul'i ltivror Basin Project consists of <br />E' narrow strip of land bordering the South Platte HiveI' from a point <br />just below Kersey, Color~do, to thE ColoT2do-Nebraska Stat€ line. <br />The Narrows Dam and appurtenant fEatUrES WEre authorized under the <br />Flood Control Act of 1944, (Public Law 534), 78th Congress, 2d Session. <br />The NaTrows Unit was sUbsequently included as a p~rt of the comprehen- <br />sive plan in the Flood Control Act of 1946, tPublic Law 526),. 79th <br />Congress, 2d Session. The first approprio.tion for the d[:11l was granted <br />by the 80th Congress, 1st Session, (Public L2W 299), a supplemental <br />appropriation me~surE which cllotted funds to the Missouri River Basin <br />dEVE.lop,nc'nt. <br /> <br />The essenti21 featurE of the plan of development is the ~~rrows <br />Dam [!nd Reservoir on the South H~tte River about SEven mihs west <br />of the town of Fort l'lorgE'n. The purpose of this reservoir is to <br />provide flood control end irrig8tion store'fe., with incidE.ntal sediment, <br />fish and wildlife, and recreation benefits. Floods on Bijou Creek <br />will be controlled by diversion of th2t creek into Narrows Reservoir. <br /> <br />Alternate Damsites.--in selectinp, the most feasible site fer a <br />rCSel"VOiT to acco~plish flood contTol and conservation storage for the. <br />low<Or reach of the South datte River, studies were. mnde of six dif- <br />ferent damsites on the South flatte River in ('!Organ E'nd weld Counties, <br />Colorado, Design~ted in duwnstre~~ order, thGs~ arE thE H&rdin, <br />Goodrich, I-J(;ldom" l'arrows, Fort dorgan, and Old Fort dorgo.n sites-- <br />the only sites found in th(; vicinity th?t could conceivnbly be con- <br />sidEred 2S alt~rno.tes for ~.cco,"plishing the same purposes cs the <br />1~2.rrows D~rn. <br /> <br />Hardin Site .--ThE capacity of a rcs~rvoir to the physic?l <br />li,,,i ts of the H2rdin site would be h23,000 acre-f(.~t at meximwn watEr <br />surfaCE: el'"vn tion 4570. In order to main ta.in s(;rvice to thE: E~pirc <br />Cenal, it would be lI~C(SS[lry to h~ve " minimum wEtEr surfacLC elev"Uon <br />of J.6h8. At this WE'ter surfaCE: E:IC'WltioIJ, thE: dCE'd storage would be <br />191,000 "Cre-fE:Et, lEavinl only 232,000 cCTE-feet of active stor?ge. <br />Studies of historical flOOds. indicatE a cap2city of at hAst 325,000 <br />o.cre-fee t is nE.cesse.ry to control histcrical floods on the "'outh 1"12tte <br />River. To cchieve full flood control benefits, it would be nccessGry <br />to provide this 325,000 acre-foo~ capacity on the South PlattE: RiVEr <br />and 2150 control Bijou Creek floods by a structure on Bijou Creek, 2nd <br />it is essential that such cap2city be hEld for stora~E: of floods. ~s <br />soon C:.s w2ter hp.s belli stored in the reservoir to rEduce [. flood pEc.k, <br />it is ncc(;ssery that the water bE released 2S quickly as thE chnnnel <br />can age.in necommodete it so thet thE: spree me.y bE m"dE- cvailable for <br /> <br />1 <br />