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<br />TABLE 2 <br /> <br />PERCENT REDUCTION <br />OF WEIR FIJ:N COEFFICIENT <br /> <br />RATIO OF TAILWATER VELOCITY <br />HEAD (hJ TO DIFFERENCE IN <br />ELEVATION BETWEEN UPSTREAM <br />ENERGY GRADE LIllE AM> WEIR <br />CREST (He) <br /> <br />, <br /> <br />100 <br /> <br />o <br /> <br />60 <br />40 <br /> <br />.052 <br /> <br />.086 <br /> <br />10 <br /> <br />.23 <br /> <br />6 <br />3 <br /> <br />.34 <br /> <br />.495 <br /> <br />.705 <br /> <br />.850 <br /> <br />1 <br />o <br /> <br />118 <br />