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I, Ii I and ov~r the entire wBtershGd by yeer 2000. Flood Control ImprovC"1<lnts No Federal I"prow)ments have been constructe\! In the gig Dry Crook bas in. ^ '~"rch 1957 report ~repilr"d tor the I ntor-County ~eglonal Planning COMmission by Dale H. Ree, a consulting engi~eer, recommended several impr'overnent5 for the Big Dry Croek ch3nt'lel. Since that report, the urban growth Of the ~a5rn has incroased the flOO<ldiltnilgepotentialofthestream. In the Little ~ry Creek basin, Englewood Dem, completed by t."", '",arks Pr09re5s ,Vlmlnistratlon In 1935, controls 9.5 square "~ii Ins of the tota I 2~ ~qw<lru mi les in the basT n. The der:, has a 35- Inch concreto pipe outlet and 100-toot spillways "round each abutment. The reservoir .,as " maximum capacity at crest of tho da"l of 1,7GO acre-f,,,,t. StorageCilpilcity is sufflciofitto prevent overtopplfiOo' the dil'" by ilfi I ntemod I~te '-{"'gion" I Flood. Qhscrvations milde of the projoct since 19~5 indicate the structure has rocelved no Improve~ents or ~"Inten"nce ~ur;nn the Intorvnl. A sediMent survey m~'je In 1955, ~y the Soi 1 C:>ns"rv~tion S"rv iCe. i nd iC.iltOj the r~>ervol~ had Ins'r 70-ncre feet ni storago capacity. Since construction of the Jam, no major floods hJVO occurred in Little ~ry Croek bn~!n and ~he structura's flo~ control cap<lbilitl ha. not been tested. Some ."Inor f :ocJlng h<l~ ()cc~rre~ on ',','1 i :.:r. Cr"",k t.w t 'I" f'oJ(;(![",L "roo d'd i idO Ie> ~egardins the effects of the ~~'" on the dlschilrge5. Local interests had, In prior YQ~rS, '"I':Cfil~j ~nd <;tr~lght~ encd L1tt 10 Ury Cree" chunne I through E~G le<<ood to I r.creaSe ch~nne I capllcity a"d r&ucc fr€lqucnt flooding. f1Qcently a box culvert has bee" constructed to (CQnvey L i ttl" :;rv Cronk under a shep~1 n~ c~nter OOw'15rr.t1.]m frC>11 S,,"rh 3annock Srre"t. To ~rovid<l for the expansion 01 stre~ts, ~ul !dl n~5, a",J State Hlgh~ay 70, the low,., redch of Grel'n- woodGulchhasbeeildltere<1untllthecbi!nnellsnearlyobllterated. T~"re are f\O Corps of E~gheers projects In the LiHle :~ry Creak ~"sl". " $tudyReaches This report ~rovlde5 flood deta for the Big Ory Creek valley frOM its junction with the South Platte River, upstream to t~e ^r~p~hoe-Do~glas County line, a distance of a~out 7.5 stre~m mi les, for the Little Dry Creek "~llay from t~e upstream end of the box eulvert at South Bannock Street upstream through Chorry Hills a~d Gree."wood Vi Ilages to Efig lewood Dam. about 6 m!les, and for Greenwood Gulch from City DitCh upstream to South Ulster Street, about 6.4 stream miles. - - -- ~ , .,..- -_.".'-...,.....~-~-----_.~_. STANDARD PRUIECT fLUOD -- .-<c"---~~' ~-;: I Potential FlooJ O~pths Charry i-H lis Vi Ildge Center Bld~. G\Jincy ;\Venue <-:ast oi Gr,-,'m~ooThe flood:; :;hown a,.." 3.5 feet and 6. 5 f~et a!Jove the west doorsill. "