I am doing a small drainage study for an area less than an acre.
The purpose of the study is to recommend solutions to correct basement flooding for a series of homes. Homeowners being as they are, really can't give me alot of information on the flow rate entering their basements or the depth of...
I am trying to model some hydrology which includes a seep at a fixed base flow (50 GPM) and a diversion of flow from a channel to a small pipe (appox. 1000 gpm or 2.2 cfs)
What is the best way to model this in Win TR-20?
I don't have any cross sectional information for a reach.
Is there way to...
I noticed at least a 20% difference in flows computed using HEC HMS to TR 55 and TR 20 using the SCS method.
Has anyone else had this problem and if so were you able to get the models calibrated more closely?
Thanks
Al
I have been recently told that the height of stairs should be 7" and the tread 11" Traditonally, I have always used an 8" riser and 12" tread. Is it still valid to use an 8" riser?
I noticed at least a 20% difference in flows computed using HEC HMS to TR 55 and TR 20 using the SCS method.
Has anyone else had this problem and if so were you able to get the models calibrated more closely?
Thanks
Al
I am trying to model a user generated hydrograph in hec hms with out much luck. I get these errors:
ERROR: Hyetograph gage not specified for Subbasin-1
ERROR: Precipitation data not defined for subbasin Subbasin-1
I simply want to route some hydrograph values through the model. I don't have...
