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<br /> The a course, .,
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<br />looking downstream.
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<br /> that expected from the most combination L+- .- If}
<br /> The flood may be severe m u +- r-- \C 0) In <', (J r-- '" C'l e: 0 '"
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<br /> hydroloqica I conditions that considered reasonably c --, 0 > co co <r- c: OJ C0 co eJ co co CJ.' '" tC tC
<br />of meteoroloqlcal and are m C 0 c' '" '" '" '" '" '" '" '" '" '" '" "'- .,. ~
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<br />characteristic of the oeol]raph iCi'l1 in which the drainaoe basin is In (L LL LJ LL (f) (f) (/) (/)
<br />area -::,- '- ~ '-
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<br />located, p.xc I ud i nq extremely rare combinations. Peak d i scha rges for these
<br />floods are CJenera II y about 40 percent to 60 percent of the Probable ~'1ax i mum Il'
<br /> +-
<br />Floods for the basins. Such floods, used by the Corps of Engineers, ro
<br /> same as C:--l
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<br /> intended practicable expressions of the degree of protection that c: OJ .. 0- (,.I;
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<br />should be soug ht in the desi!ln of flood control works, the failure of which ltl u: "'.- 0 > co -co co co co cr; tC ()') en co co co co co
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<br />mlqht be disastrous. "0 ~ '- '- '-
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<br />water flows under normal span - '-0 +- OJ-+-
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<br />sometimes I1low steel", the roof of box culvert the of .
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