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<br />,. <br /> <br />hvlse baae flood con<:Iition. to reflect changes in <br />topography which have occurred Ginc.. the pnvious <br />fIS va. p~bli8hed. This covers approximately 1,200 <br />feet. located illlllledhtely dc"".trea.. of the County <br />lin,,"sshowninFigurel. <br /> <br /> <br />"I <br /> <br />t.IHTRODUC'rtON <br /> <br />The purpo.. of this report and supporting documentation 10 to request <br />revisions to the Flood Insurance Stody (FlS) floodplain mapping and profil... <br />for II. portion of Cottonwood Creek in Aupahoe Cou.nty, Colorado (Reference <br />1). Specifically. ''''propose the following: <br /> <br />\ <br /> <br />. <br /> <br />B. Upgrade the study to a detailed study, including II. floodway. <br /> <br />C. Prepare and submit Overlot Grading Plan for <br />develop~ent of Little People's Landing showing fill <br />in the floodll"yfringe. The floodw"y used here is <br />th~ flaodway established in Part B above. <br /> <br />n. BACKGROUND <br /> <br />" <br />N <br />, ' <br />, , <br /> <br />, <br />, <br /> <br />c; ':? <br />~~J " <br />, <br />, <br /> ,~' <br /> ',I'r. <br /> . " <br /> <br />'" <br /> <br />ThO' Hut ^~.r'~ho" Co""ty !'IS V05 CNl'rl..t"d i~, 1975 and p',bli9h~d in 1977 <br />(Rehrence 2). 'this FIS included a detailed study for the fint 4.5 miles <br />of Cottonvood Creek (Reference 3). <br /> <br />, <br />( <br /> <br />, <br />, <br /> <br />.... <br /> <br />I <br /> <br />'l" <br /> <br />/' '.'~, <br />B<(' <br />~-v" <br />, <br /> <br /> <br />I <br />R <br /> <br />. <br />, <br /> <br />" <br /> <br />Almost conc..runtly ..ith the FIS, a Flood Hu;ard Area Delineation (FllAD) <br />Study ..as conducted by Gingery Auociates. Inc. for the Urban Drainage snd <br />Flood Control District (UD&FCD) (Reference 3). this study included hydrology <br />for the enUre length of Cottonwood Creek up to, and beyond the <br />ArapahoejDouglasCounty line, theFHADflows, for the lOO.yearevent, are <br />higher than the FIS f10..s. ~e understond the FRAD ftows are based on future <br />conditions ond the FIS flows on present conditions, ~e us..d the higher <br />flo... f~Qrn the FHAO Study. <br /> <br />~ -'l C' <br />(.,,' J <br />.1", '~! s'i" <br /> <br />, <br />,i~ <br />"'.', <br /> <br />I <br />, <br />I <br /> <br />- <br /> <br />II <br /> <br /> <br />VICINITY MAP <br /> <br />'" <br /> <br />, <br /> <br />, <br />