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