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<br />_17_ <br /> <br />~18- <br /> <br />f10cd ha:ard area. This problem can be corrected by enlarging the opening, <br /> <br />Sediment deposition and debris arC other factors which influence the <br /> <br />under Galley Road. ~cw developmentS, presently planned or under construction, <br /> <br />channel hydraulic characteristics and subsequently affect the flood line <br /> <br />aro ~ithin the flood hazard area. For example, the lo~-lying land borderlng <br /> <br />location. During the course of this study, it. was observed that several <br /> <br />the Center Tributary (Photo No. 2S) is zoned fClT industrial use. <br /> <br />road crossings, especially those with small culverts, had been partially <br /> <br />clogged with uebrh and sediment. A source of uebris which could becorr.e <br /> <br />The meager accounts of historical flooding reveal that nost damages <br /> <br />dislodged and carried downstream, is the dump on the east side of the Sand <br /> <br />on Sand Creek are related to roads and bridges. Road crossings ~ith inadequate <br /> <br />Creek channel located bQt~een U.S. Highway 24 and Galley Road (Photo No. 20). <br /> <br />culvert llnd/orbridge openings often cause channel constrictio nsandobstruction <br /> <br />to flood flows. Elevated roadS in the flood plain act as barri~rs which <br /> <br />RZ('.(lmm('C!1da.UOM <br /> <br />raise the water surface elevations at some location,. Other road crossing8 <br /> <br />Existing flood lone resolutions and subdiviSion regulations are in ~ccord <br /> <br />are lower than the flood plain ar.d act a5 channels djverting water from its <br /> <br />with g~ncrally recognized flood plain management principle5. The following <br /> <br />normal course. Many of the crossings are over-topped lI'ith runoff from storms <br /> <br />recommendations arc included for conSideration in reducing potential flood <br /> <br />occurring more frequently than the lO_year event. <br /> <br />damage on Sand Cr"d and its major tributa:ries: <br /> <br />Following are e~amples of road crossings whiCh have a pronoun~ed effect <br /> <br />1. App!ioaticn for appr~vaZ cf f1cod ~one ~eg~tat{ons be made tv the <br />Co!omdo Wate~ COl"lsezovaticm Board. <br /> <br />o~ the location of the flood hazard areag: <br /> <br />2. A ",cletazo d:t'ainage plan [0:/' the .""tiPB Sand (r-e"k f;.'"tenhd be <br />d~1!.,Zoped. <br /> <br />Photo No. Road Crossing~ <br />19 Gailey Roau <br />2S Terminal Street, " , lIigh~vy " <br />;1 Fountain Doulevanl <br />;; and " Academy Houlcvard <br />" '"' ;; Ha.ncock r.xpress"..ar <br />'" ~!ar~sheffel Road <br />" Calle>' Ruad <br />" Pete:!'5cr. Road <br /> <br />3. A stw;i'y be made regw>dir"J !'rod <'l"CCS""(/ prohlem. SevepaZ existing <br />azoossings are iw;/';.,qu<1t" i" l'eZation to potential. j'l.ooding. PUfUP" <br />road crosl!ii"f d"sign and [ecation chouZdbe aompadbZewith the <br />mact~r dt'air.age pran. <br /> <br />1, A periodic ir..'lpect-;o" 0/ "ham:els nhouZd be C'O"du",ted to aSSUl'e <br />that flood "hanncZe aJ"" not beinG' "n"l'Gachi:d upon and that dadG'n <br />~?~~ir'p~ arp hpi~~ mni~t4i~~~. <br /> <br />5. A .Hoed chcm"'cZ "'1ai"itar.anrx ;;)):'0,]"= be MtabUehed to "",''1(,~." <br />d~bl'";s and zoepaip damaged cha~n"rs. <br />