1. A 30-inch concrete pipe culvert conveying a discharge of 45 cfs operates under inlet control. The culvert is installed with its groove end projecting from the embankment. Find the headwater depth....

1. A 30-inch concrete pipe culvert conveying a discharge of 45 cfs operates under inlet control. The culvert is installed with its groove end projecting from the embankment. Find the headwater depth.

2. 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.