Mystery solved with there being absolutely no change with the 24 and 5-day event, the program was not reading the hydrology file. But all of the information you gave me has been helpful, useful and eductaional.
No discharge is allowed. This is a case of "no adverse impact" due to floodplain ordinance. For the 24-hr storm I have flows at the 12th hour at 53.17 cfs and 11.38 inches. For the 5-day the peak is at the 60th hour at 17.56 cfs and 11.38 inches. I am using TR-55 with Type II FL Modified...
you would be correct blueoak, i am near the tampabay area.
i have run the model for both events (100_24 and 100_120) and am oddly needing the same storage space for both events. the basin is considered closed and grounwater is withing 8 feet. i am supposing these are the cause for the lack...
I have been asked to design a detention pond for the 100 year_ 5 day storm event by the local governing body. Typically the 100 year_24 hour storm is used as the design criteria. I am wondering why this would be requested. It seems to me that the rainfall intensity would be less and thereby...