Problem:
A 10-m wide emergency spillway with well-rounded abutments has a crest height 5.00 m above the bottom of a storage reservoir in which the maximum-pool elevation is 6.00 m. The emergency spillway terminates with a stilling basing in a 10-m wide rectangular concrete channel that has an invert elevation equal to the elevation of the bottom of the storage reservoir.
Required:
Question: If energy losses down the spillway are neglected, what type of stilling basin should be used?
Note: Solve the given numerical problem and illustrate step by step calculation.