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<br /> <br />. <br /> <br />conditions whioh Can aff~ct the depth of floQdwot~~a at bridgus <br />~aS furntshad in the ea~linr t8~t pertaining to bridg~s across <br />~ild Ho~se_Dry C~eek. <br /> <br />, <br /> <br />Obstru~tions to Flocdflow <br />The effect of obstructions due to bridges and thsi. <br />appro~ch fills has been described in previoua p4r~graph3. rutu~e <br />development and land_filling in or nea~ the Goodnight Arroyo chan- <br />nel could obstruct flocdflo~$ a~d c~uae incre~e9d depths. <br /> <br />flood Records <br /> <br /> <br />There are nO recorda of ~tream ~tegas or discharges <br />a\l"il~bl" for Goodnight Arroyo. Information on past fla"ds in <br />the area, as ~vei13ble in newspaper files ~nd other historical <br />documents, is almost exclusively concerned with the larger aspect~ <br />of flooding On the Arkansas Rivs~ or Fountain Creek. The flood <br />profiles ~nd flooded are~s ~epe were deueloped from the results of <br />preuioue etudies, field investigations, and offics computations. <br /> <br />FlOOd Occuu.moes <br /> <br />Investigation indicates that floods oCCur On Goodnight <br />Arroyo with approxirnat~ly the e~ne frequency as on Wild Hotee-Dry <br />Creek. These floods usually originate in severe storms experienced <br />during the late spring or eu~mer months ss dBsc~i~ed pr"viou~ly <br />und~r "flood occurr~nc.."" pettaining to lIIild Houe-Ory Cr~.,k. 1he <br />physioal features of the Goodnight Arroyo watershed can produce <br />the repid ooncentr~tion of runoff that characterizes flash flood~ <br />of high peak flows, small volumes, and short durations. <br /> <br />fiqure8. GOOONIGHTARROV08RIDGES <br />Top uiew is upstream sido of Goodnight Arroyo culvert under <br />Bessemer Ditch.Aqua Drive at Mila 0.51. <br />Bottom vi"" is upstream sido of Red Cr.."k Road bridge at MilD L6t. <br /> <br />flooded Areas. Flood Profiles. and Cross Sections <br />Plate 7 shows the appro~imate areae alo~g Goodnight <br />Arroyo that would ~e inundated ~y the Standard Projeot flood a~d <br />tha I~ter~adlate RBgio~al flood. The actual limits of these <br />overflo~ sraeS on the ground may usry 31ightly from tho~ shown <br /> <br />" <br /> <br />37 <br />