Hi ,
I am new in use of HEC RAS 5.0 , As i am working on open drain design for an open land ,where i have contour data , spot level,slope arrow spot level in Auto Cadd format only (no any GIS Dataset) and rainfall for that area in mm/hr with specific n values ,so is it possible in HEC RAS 5.0 to design drain for small subcatchments (Sub catchments are marked already by civil 3 D slope analysis work ,where arrow shows steep slope ) can i get output regarding safe drain discharge, for the particular small sub catchment .And L Section and Cross section of that open channel with flood profile for particular drain ,please awaiting for your responses.