A concrete box culvert 3 feet by 6 feet conveying a discharge of 125 cfs operates under inlet control. The culvert has 45 degree wingwalls. Find the headwater depth. A concrete box culvert 4 feet by 8...

A concrete box culvert 3 feet by 6 feet conveying a discharge of 125 cfs operates under inlet control. The culvert has 45 degree wingwalls. Find the headwater depth.

A concrete box culvert 4 feet by 8 feet (n 5 0.012) conveying a discharge of 225 cfs operates under outlet control. The culvert has a length of 80 feet, slope of 0.60 percent, and 45 degree wingwalls with square edge. Tailwater depth is 2.75 ft. Find the headwater depth.