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<br /> <br />, <br /> <br />conditions whioh Oan aff~ct th~ d~pth of floQdwot~~a at bridgus <br />~as furnishad in the ea~lior t8~t pe~taining to bridgos across <br />~ild Horse_Dry C~eek. <br /> <br />, <br /> <br />Obst~uctions to Floodflow <br />The effect of obstructions due to bridges and thei. <br />approach rille has been dasc~ibed in previoua p4r4graphs. rutu~e <br />development and land_filling in or near the Goodnight A~royo chan- <br />nel could obatruct floodflow$ and cauae inoreaeed dspthe. <br /> <br />flood Reoorda <br /> <br /> <br />Thera ara nO records of stream steges or discharges <br />availablo for Goodnight A~royo. Information on pest floods in <br />the area, as available in newepaper files and other historioal <br />documonte, ie almost e~olusively concerned with the larger aspacte <br />of flooding on the Arkansas Rivs~ o~ Fountain Creek. The flood <br />profile~ and flooded area~ ~ap6 were developed from the re~ults of <br />previoue studies, fiold investigations, and offioe oomputations. <br /> <br />flnod Occuu.mceo <br /> <br />Investigation indicate" that flooda oCCur on Goodnight <br />Arroyo with approxirnat~ly the ,,~ne frequancy as on Wild Hot"e-Dry <br />Creek. These floods usually originate in seVIlra storme e~periBnced <br />du~ing the late spring or aU~mBr months 55 dBscribed pr"viou~ly <br />\Jnd~~ "flood oCClJrr~nc"~" pertaining to \IIild Ho.se-Ory C~~.,k. 1h.. <br />phy"ical featura" of the Goodnight Arroyo w~tor"hed can produce <br />the rapid concentr~tion of runoff thet chllrecterizes flash flood6 <br />of high peak flows, small volumes, and short durations. <br /> <br />fiquree. GOOONIGHTARRDV08RIDGES <br />Top view is upstream oido of Goodnight A.royo culvert under <br />Bessemer Ditoh.Aqua Drivo at Mile 0.51. <br />Bottom vi"" ie upst.eam side of Red Cr.."k Ro~d bridge at MilD L6t. <br /> <br />flooded Areas. flood Profiles. end Cro"" Sections <br />Plate 7 showS tha approximate areae along Goodnight <br />Arroyo that would be inundated by the Standard Project flood and <br />the Inter~ediate Ragional flood. The ~ctu"l limits of these <br />overflow a."~,, on the 9"Ound may vary 31ightly from tho~ shown <br /> <br />" <br /> <br />37 <br />