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<br />
<br />U.S. Highw~y 50 8ypass c,oss~a the stre~~bsd over two
<br />liC-foot 4~sp~n bridges, skswed 20 degrees, which stand side-by-
<br />side to provide for 2-1ane east end westbovnd traffic. The road-
<br />way would not be inundated by the Standard Project or the l~ter_
<br />~adi~te Regional flOOd. Head losses ~t the bridgo would be 5.1
<br />fest dwring the Standard Project Flood and 4.5 feat during t~e
<br />I~termediste Regional ,lood.
<br />Table 4 lists pertinent elevations for tho bridges,
<br />~nd relates their underolesrance elevation to the crest of the
<br />Intermediate Regional Flood. A discussion of the v~ri~bl€ con-
<br />ditions which Can affect the depth of flood~aters at bridges wos
<br />fvrnish~d in the eerlier text pertaining to bridge. across Wild
<br />Horee-Dry Creak.
<br />
<br />Obstructions to Flood flow
<br />The effect of obstrwctions due to bridges end thoir
<br />approach fills has been described in previocs paragraphs. Thore
<br />are no significant obotructlono to flcodflowe along the Dry Creek
<br />~tudy reach at the present time.
<br />
<br />,
<br />,
<br />I
<br />,
<br />I
<br />
<br />flood Reoords
<br />
<br />The.s arc no r~cords of otrcnm ctng~s or discharges
<br />aveilable for Dry Creek. Without swch data, tho r~te of rise,
<br />dur~tio~, ann V~ln~i"J~~ nf r~st floods cannot be accurately
<br />d~ter",ined.
<br />
<br />l~fQrmatlon o~ pest floods in the area, as av~ileble
<br />in ne~spep9r filee end other historical documents, is almost
<br />exclusively conc~rn~n ~ith the lerg~r aspects of flooding on the
<br />Ark~n~aR Riv~r or Fountain Cr~ek. The flood profile8 and flooded
<br />area6 maps ~are developed from tho reswlts of previou~ studio~,
<br />field investigations. and office computations.
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