Thank you for your response. I was actually looking for information on the FAA formula developed by the army corps for computing time of concentration. The UFC section 2-3.2.4 uses the velocity method with the 3 different equations plus an iteration in the sheet flow segment. From what I am...
Can anyone point me to where I can get more information on using the FAA formula for computing Tc? Specifically if it is only for sheet flow? I was thinking it was a general use equation kind of like the kirpich formula, but it produces a lot longer travel time (which i was hoping for) butI...
I am trying to calculate flows into a drainage system we are going to be upgrading. It seems there are a bunch of different ways of computing the travel times for the watersheds. I think the one I like the best is the "watershed lag method" because it seems like it could be the most...
