I am new to hydrocad and have some basic questions I need help with. Any comments are most welcome.
I have a 7.8 acres site that I am analyzing for pre and post watershed conditions for a SWPPP report.
Basically, the existing site is being modified to include an additional 4.3 acres of impervious areas.
I had an engineer friend do a preliminary hydrocad model for this analysis, but I am struggling to understand how the modeling was done.
The modeling has 2 subcatchments: 1S- pre existing conditions and 2S- proposed conditions. Subcat 2S outflows on to 3P (proposed drywells).
All areas are properly assigned with their respective CN. The final report shows an area of 15.5 acres because I believe it is assuming the pre existing and proposed conditions combined.
Is this the right way to enter the modeling data? Shouldn't it be done separately with one analysis for the pre existing conditions and another for the proposed? I have tried to read the manual and figure it out how it should be done, but I am afraid I'm getting nowhere.
Thank you
I have a 7.8 acres site that I am analyzing for pre and post watershed conditions for a SWPPP report.
Basically, the existing site is being modified to include an additional 4.3 acres of impervious areas.
I had an engineer friend do a preliminary hydrocad model for this analysis, but I am struggling to understand how the modeling was done.
The modeling has 2 subcatchments: 1S- pre existing conditions and 2S- proposed conditions. Subcat 2S outflows on to 3P (proposed drywells).
All areas are properly assigned with their respective CN. The final report shows an area of 15.5 acres because I believe it is assuming the pre existing and proposed conditions combined.
Is this the right way to enter the modeling data? Shouldn't it be done separately with one analysis for the pre existing conditions and another for the proposed? I have tried to read the manual and figure it out how it should be done, but I am afraid I'm getting nowhere.
Thank you