I have an existing HEC-RAS model completed using Version 2.2. I want to add a couple cross sections to this model to incorporate the area I am studying. I am using HEC-RAS Version 3.1.3. Unfortunately the ineffective flow areas established in the earlier version are not operating correctly in...
I am learning PondPack. I have a strong TR-20 background and, in general, the ordinances I follow require that TR-20 be used for event hydrograph simulation. The situation I am currently modeling has a system of inter-connected ponds. I know that PondPack has routines for evaluating...
My travel time will be about half my Tc. Think that's short enough? No matter how much reading/research I do, it never seems to be as effective as conversing with someone with experience! Thanks again.
Thank you Peter. To make sure I understand: if I just ADDHYD the sub-areas together, I am not introducing the lag in peaks that is actaully realized in the watershed, right? But, if I increase the Tc's to reflect the travel times through the sub-areas to the outlet, I am introducing the lag...
I have 3 tributary areas delineated for use in TR-20. A flows into B. B flows into C. Ponding occurs in C because of a restrictive culvert. Is it accurate enough to ADDHYD A and B, then ADDHYD A+B and C, then route the final ADDHYD through a RESVOR created by the culvert? Or should I route...
