I am looking to see how folks may analyze different design storms in SSA using the rational method....
Our rational method standards indicate that we should use different runoff coefficients for different design storms of the same subbasin (5yr C= 0.88, but 100yr C=0.92). I only see the availability to enter a single Weighted C for a subbasin in a SSA file.
So I am assuming I will need to do a complete SaveAs of the model and change all of the runoff C values for each subbasin to run a different design storm analysis.
Is there a way to have multiple C values to run against in a single model file for different storm events?
Currently running SSA 2018 w/ C3D 2018
