Laserfiche WebLink
• Determine Oow velocity down 3h:1 v embankment -Pond C <br />Pond C Emergency Spilhvay <br />Manninbs Equation <br />Flow In a Trapezoidal Channel <br />• <br />• <br />DEPTH D 0.400 FEET <br />WIDTH W 10.000 FEET <br />Slope S 0.33 EXPRESS AS DECIMAL <br />Mannings "N" N 0.04 EXPRESS AS DECIMAL <br />SIDE SLOPE X 2.0 SLOPE = X:l <br />AREA=(W'D)+(X•D^2)= <br />WETTED PERIMETER=(W)+2*(((X'D)^2+D^2)^0.5~ <br />R=AREA/WETTED PERIMETER <br />Q=AXV= <br />Q REQUIRED -Peak Discharge <br />Riprap Sizing - Do+vn Face of Embankment -Pond C <br />D50 = Size of Riprap <br />D50 = ((V X S^.17)17.58))^2 <br />D50 =Diameter in feel <br />V =Velocity <br />S =Slope <br />D50 = 1.43-feel 17-inches <br />TR-0I <br />EXH-8 -12 - <br />4.32 FEET^2 <br />11.7') FEET <br />0.37 <br />10,')G FT/SEC <br />47,34 CFS <br />3').15 CFS <br />T~-D <br />9/97 <br />