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Rip Rap Size Determination for Ramp between 6+25 and 6+75 <br />Station <br />Flow <br />Depth <br />Velocity <br />WS Width <br />Rip Rap Size <br />(D30) Inch <br />Comments <br />640 <br />300 <br />1.73 <br />9.38 <br />21.93 <br />100 <br />0.82 <br />7.29 <br />18.3 <br />7.25 <br />200 <br />1.29 <br />8.86 <br />20.14 <br />10.5 <br />300 <br />1.63 <br />10 1 <br />21.51 <br />13.73 <br />405 <br />1.97 <br />10.87 <br />22.87 <br />15.74 <br />500 <br />2.24 <br />11.44 <br />23.97 <br />17.31 <br />550 <br />2.38 <br />11.68 <br />24.53 <br />17.96 <br />650 <br />600 <br />2.53 <br />11.84 <br />25.11 <br />18.3 <br />625 <br />2.58 <br />12.01 <br />25.32 <br />18.87 <br /><<< Worst Case <br />650 <br />4.09 <br />6.85 <br />31.55 <br />4.13 <br />792 <br />4.97 <br />6.38 <br />35.26 <br />3.3 <br />943 <br />5.83 <br />6.04 <br />38.94 <br />2.76 <br />use 18.87 inch to 3.0 ft. depth <br />1522 <br />8.78 <br />5.26 <br />51.46 <br />1.76 <br />then 9.44 inch above that to 6 .0 ft. <br />Extend between 6+10 and 6+90 <br />405 <br />2.54 <br />7.95 <br />25.15 <br />6.75 <br />792 <br />375 <br />9.38 <br />30.1 <br />9.27 <br />675 <br />943 <br />4.21 <br />9.56 <br />32.04 <br />9.44 <br />1025 4.75 8.78 34.35 74 <br />1118 <br />5.3 <br />8.21 <br />36.7 <br />6.09 <br />1242 <br />5.99 <br />7.65 <br />39.61 <br />4.95 <br />1522 <br />7.4 <br />6.84 <br />45.59 <br />3.55 <br />405 <br />3.05 <br />6.3 <br />27.19 <br />3.61 <br />600 <br />3.77 <br />7.06 <br />30.14 <br />4.55 <br />792 <br />4.36 <br />7.66 <br />32.64 <br />5.38 <br />694 <br />943 <br />4.76 <br />8.06 <br />34.35 <br />5.98 <br />1025 <br />5.04 <br />8.09 <br />35.52 <br />5.95 <br />1118 <br />5.3 <br />8.21 <br />36.7 <br />6.09 <br />1242 <br />6.06 <br />7.52 <br />39.78 <br />4.73 <br />