A triple concrete box culvert 5 feet by 12 feet (n 5 0.012) conveying a discharge of 1620 cfs operates under outlet control. The culvert has a length of 105 feet, slope of 0.75 percent, and 45 degree wingwalls with square edge. Tailwater depth is 4.1 feet. Find the headwater depth.
A 60-inch concrete pipe culvert (n 5 0.012) conveys a discharge of 200 cfs. The culvert has a length of 250 feet, slope of 0.55 percent, and 45 degree wingwalls with square edge. Tailwater depth is 3.33 feet. Find the headwater depth.
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