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FIGURES (concluded) <br />Number Page <br />46 Example development of conditional depths and velocities <br /> as functions of cover .......................................... 196 <br />47 Width of specified depth plot used to determine passage flow... 198 <br />48 Computation of area and wetted perimeter for a partially <br /> filled, round culvert .......................................... 200 <br />49 Construction schematics for artificial overhead cover <br /> structures ..................................................... 206 <br />50 Straight channel with offset rock spurs to impose a meander <br /> pattern and bed profile diversity .............................. 208 <br />51 Channel improvements that can be made on a floodway without <br /> affecting its performance ...................................... 210 <br />52 Channel improvement structures that cause more problems <br /> than they solve ................................................ 216 <br />xvi