A flood alleviation scheme is required for a stretch of river 5 km long. The river is 60 m wide, and the average depth is 7.5 m, for the passage of the probable maximum flood discharge of 1700 m 3/s ....

A flood alleviation scheme is required for a stretch of river 5 km long. The river is 60 m wide, and the average depth is 7.5 m, for the passage of the probable maximum flood discharge of 1700 m^3/s. The laboratory for the previous question is to be used, but the model length must be accommodated across the 20 m width. The maximum laboratory discharge is 20 L/s. Estimate the model scales.

[λx = 1/300, λy = 1/50, Q″ = 16 L/s]