Calculating flow through three corrugated Al Pipes

[ajay.raman]

I have a scenario wherein three Aluminium corrugated pipes of varying lengths are side by side, sitting below a temporary crossover across a river. I have the Inlet and Outlet Stations and Elevations and the pipe diameters (66", 48" and 54"). I also have the lengths (50', 59.60', 52'). The pipes are to carry a total of 500 cfs and I need to know if they will. I need a detailed analysis of the amount of discharge through each of the culverts including overtopping. Please help me!

[admin]

Do you know pressure and geodetic heights on the start and on the end of pipes. What is the fluid?
Diameters that you stated are internal pipe diameters?