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<br />I, <br /> <br />,'. <br /> <br />. <br /> <br />. <br /> <br />I. ProJect descriptiOl~. <br /> <br />~'he project vas nul.horized for construction by the Flood Control <br />Act of 1968, substnntiEuly in nccordance vith the recommendations of <br />the Chief of Engineers in Senate Document Numbered 87, Ninetieth Congress. <br /> <br />The )1ro.1ect vO'JJcl ron~i"t of a darn and multiple-purpose reservoir <br />on Bel'r Cr""k for ft",'"" control, general recreation and fish and <br />vlldlife enh"nceme"t. 'j'he.}"", vould be a rolled eo.rthfill structure <br />located nbout 2 1/2 '.;'le"' GvVtlstrearn from Morrison, Colorado Just <br />belo" the cDnflllenc" of' Dcn,o Bnd Turkey Creeks. The valley closure <br />vould consist of t.~n pc-=-'." , n mo.1n embankment '143.1 feet high vith a <br />4,100 foot crest, nno n :.upplementary'embankment tD the south 33.1 feet <br />high vi th a 2 ,lOa f(:,c~. c:-est. <br /> <br />The renervoj ~ ct'"'-:'.t r'l~. 1--..,. th~ embankments vould contain a sediment <br />pool of 2,1100 lIcr"-- ".-:.t C,c.?~.city. This 'Would also be the multiple- <br />purpose pDol "od llovld covc:- 130 surface acres. ,The flood control pool <br />of 26,000 acre-fret, ,;ecity vould cover 620 acres. The reservoir <br />vould be equip?ecl v[ :.h ~n earthen and rock cut ung...ted emergency <br />spillvay v1t.h l\ 5rV) foc-t. crest 'Width. Features of the authorized <br />project are shovn on the inclosed plates No.1 and 2. <br /> <br />~JCent benrfit-cost ratio for the prDject is 3.5 to 1 based <br />On l7rcent interest I'ate. <br /> <br />'i/ <br />1YJ <br /> <br />II. El1yiro=cntal ."ttin.5.. vithout the pro.1ect., <br /> <br />Deer Creck, n l";'t ben!< tributary of the South Platte River, rises <br />on the e'l."U'n1 01c-,,, of the Continental Divide. It drains 262 square <br />mUes before JOinine the SDuth Platte River about 10 miles east of <br />Horrison, Cnlorndo. TUI'I;ey Creek, a right bank tributary of Bear Creek, <br />Joins near Creek approximately tvo miles east of Morrison. ~fuch Df <br />the Benr Creer. clrain~ge is mountainous terrain, making the stream <br />channel quite precipitous. Hovever, from the general vicinity of the <br />project site to the cnnfluenee of Bear Creek 'With the South Platte <br />,River, the topogrsphy of the Bear Creek drainage is ~enerally open, <br />rollin~ countryside with a scattering of trees along the streambank. <br /> <br />Within the 1'1'0.1"01. o,rea the streambanks and associated pasturelands <br />have been overgraz~~ rnd annual 'Weeds and grasses are common. Two <br />small lalles, thc Sod" J.o.kcs. are near the upstream limits Dr the project <br />area; they are currently in private Dvnership. <br /> <br />The project lies within the Denver metropolitan area; there is a <br />pDpulation at 1,240,316 (1970 preliminary estimate) in this area Dt <br /> <br />3 <br /> <br />. <br />