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<br />i <br />I <br />, <br /> <br />P'<ECI?JTATlON REPO'<TI'iG $TliTl~$ f'ro .,~[je u) pril'lMlly of COODo"'lltiv~ <br />st~tions suoported ~y the Denver ~ator BoJrd, tho Corps of Engineers, <br />and the WOdthor Our-caw. Twenty~nig~t ropor~in0 stations are ooer~- <br />t lond I in the bas i n ~bove I-iendnrson, C010'"1100, Jnd "'''sf of t~c'" <br />report directly to the 1,.""t11er Bur~ilu eff Ice at Denvor Stapleton <br />Field. Twoot these stotions In the CherryCreok b<,sin haw, radio <br />tolemetryoQ<Jratcd by the Corps of Engi"o"rs. <br /> <br />iO <br /> <br />GeiERAL COiJOlTlCNS <br /> <br />Thlssectionpresentstnsgeneralcharact"risticsofthe <br />$+r03"'5 cov,-,rec1 by th' report, nnd ~ ;(jS'Jr-te of the meager rseo.-os <br />of 110;)01 "9. GeoJraflh lea Ily the <;friH"lS d iv ide Into four g"'QU~S' <br />(I) 81'] Dry anct LittlollryCreek$MdSreenwoodCulcn in Arapalloo <br />County; (21 Weir, Lilkowood,:'>outMLakc,woodand:J,:;lntyr"Culchas; <br />(3) Litt Ie Dry Creek In AdilC1S County; and (~) Grange lIa II Cre..k. <br />In d i SC\J5~lng the stre>.l"1s Tn n,I5 soctlon, these grouoi n'lS '~i II be <br /> <br />used. <br /> <br />The flood conditions On each stream vary depending upon <br />their topography and develooment. ^II elevations in thTs report <br />are bas"d on t~". 1929 U. S. COilS t and .8eoo et I c Su rvey moa n seil I eve I <br />d~tur1. <br /> <br />BIG DRY CREEK, LITTLE DRY CR~EK, AND GREE~~OOO GULCH <br />(Arapahoo CounfyT ~ Group I <br /> <br />StrGa~.and Basin Chilracteris.ltcs <br />8ig Dry Creek is the f8rthes~ upstream ~Jth Platt~ <br />tributary of thos0 1ncluded In this roport. It dra1~~ ~ ~ilsln of <br />19 e,qu"re mi le~, with il length of abou~ 12 "'I los and an a;:>prox- <br />I",,,h "v~r,,'.:.. ",1<<+" "I I.'> ..,11,,<. Th" ''''~1'' "'''';O~O ;n t'''l h;ghl~n1~ <br />SQut~ of 8envcr in Uouglas County and slopes toward the nor~hwest. <br />I tis char~cter I ~ed oy ro I ling M I II sand ridges, genora II Y ~teeper <br />In the upper ~asi~. The stream rises dt about elevation G,300 /~t, <br />lOeansoa levol, Itflowsnorthw"sterlytojolntheSoutMPllltte <br />Riw)r at <luout 91<l"atTon ~,3aO feet at th" nor~11 edge of II tt I"ton <br />in ^rapahoe County. Tl1e "alloy Is narrow, averaging about ~ Quarter <br />f11 Ie in width. The chlln~e I is $ I nuous with ~ ,,~rrow f load p I~ I n In <br />the V-sh~ped va Iley The streJm grad lent is rfllat1"elv steep, havl ng <br />a drop In aleviltlon of ever 3.5'l feet ffO',tMe Arapahoe-Qo<J'llas C'-<lunty <br />LItH, to its mollth ~t the South Pldtte Riv,,'" <br /> <br />" <br />