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<br />100 <br /> <br />SAND <br /> <br />GRAVEL <br /> <br />co B8lE <br /> <br />BOUlDEflS <br /> <br /> Elt~e/op;ng curve lor upper <br /> J'---- <br /> d =6.5 D -0~1.15 <br /> s (max) 50 <br />t- -- <br />W <br />W -- <br />IL 10 . -- <br />~ . ...--.-- <br />...<. . <br />.. . .. - <br />~ , <br />II: .. <br />;j . ... <br />0 - . -. <br />() . <br />(/) . .. <br />IL <br />0 <br />J: .. Mean depth . <br />t- ot $courcurve <br />a.. <br />W - 0.115 <br />0 1.0 d = 1.42 D . .. <br /> , (mean) 50 <br /> . . . . <br /> . MEAN DEPTH OF SCOUR <br /> . MAXIMUM DEPTH OF SCOUR <br /> 21 SITES <br /> 0.1 <br /> 0.0001 0.001 0.01 0.1 1.0 <br /> <br />MEDIAN OIAMETE'l OF BED MATERIAL (050), IN FEET <br /> <br />ITGURE 13. Relationship of scour depth to median size of bed material in channel. <br /> <br />30 <br />