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<br />of the water surface profile proceed, in steps, tr~ one cross section to
<br />the next. The HEC-2 program is also capable of handling the effect of the
<br />various hydraulic structurES. such as bridges and culverts. which restrict
<br />theflo....
<br />
<br />Additional detailed hydraulic calculations ...ere made at road crossings
<br />where the drainage structure capacity "'SS small in comparison to the
<br />flow oVer the road. Rand calculations ...ere also required along Florida
<br />AVenue where drainage structures are closely spaCed and the water surface
<br />profile is rapidly varied.
<br />
<br />The results of the flood computations are presented in Table-5. Figure-3
<br />shows an index map tor the flooded area plates. Flooded areas from a IOO-year
<br />frequency flood are presented on Plates through 10. The flood profiles are
<br />sho..nonPlates II through 20. Platu 21 and 22 show a number of typical
<br />cross sections of the stream and valley in the study area.
<br />
<br />The water surface elevations presented in Table-5 are based on
<br />computations whiCh asSume no reduction in rhe hridge conveyance capabilities
<br />due to debris. Water surface elevations may increase if significant debris
<br />blockage should occur.
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