Main Stream as TRANSPORT conduit

Hello All,

I am assigned to use SWMM on 64 Sq. Miles mostly urban watershed. Due to the large modeling area and lack of detailed data, I intend do a coarse (semi-lumped) modeling by using 14 sub-watersheds in RUNOFF and connecting them in TRANSPORT with the sewer system actually only representing the main natural stream. I wonder if you have any particular experience or suggestions or comments for this case.

Also, I am required to use SWMM for simulation of a 288 Sq. Miles watershed with less than 15% urban areas. I know that SWMM is not the best choice for this case, but I appreciate experiencessuggestions for a better application of it under this condition.

Kaveh Zomorodi, Ph.D.
National Institute for Environmental Renewal

Of the sample input datafiles on my website, the particular set you could look at involves RUNOFF-TRANSPORT-STORAGE for design of a stormwater system (no net increase in runoff). Visit:

http://www.eos.uoguelph.ca/webfiles/...ormsewerdesign

You must enter the whole URL on one line. The sample is taken from McGhee's textbook.

Where is it proven that SWMM is not "best" for %I<0.15? I would say simply: "Since it does not have the process code, do not use SWMM if you need to route/track groundwater".

$0.02, thanks.
Bill James