I am trying to determine the peak flow for a New England area for the 500 year storm event with TR-55. I can't seem to find anything in the manual or anywhere else what the 24-hour rainfall is for this event. Any help would be appreciated!
I am using version 3.1.3 (the latest except for the beta).
I took out the cross section and it still does the same thing. Its really puzzling me. I am now going over each bit of data that I entered to look for any inaccuracies.
Thanks for the reply. I checked the manning's n's, and they are all ok, as are the bank stations and reach lengths. I don't have any ineffective flow areas.
I will double check my downstream sections. i was focusing on the stations that change from critical to supercritical.
I ran mixed...
I am currently trying to model a channel in HEC-RAS but keep running into the same problem. At one of the cross sections the model calculates the flow to be at critical depth and then at the next section it goes to supercritical flow. At that point, it the flow runs out of the channel and to a...