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I am having trouble getting the pond to draw down in 48 and certainly can not meet 24 hours. The current draw down is approximately 72 hours after the event. The issue is that the two requirements are working in the opposite direction, the FAA wants the water gone to keep the birds away and...

Working on a project near a small municipal airport. FAA requires that dry bottom ponds be empty 48 hours after the storm event has concluded. City requires 2-year and 100-year restriction for the 24-hour event necessitating a dual stage restrictor. For the life of me I can not get the pond...

I have CEL file from Illinois Department of Trans. and need it in a DWG format. Would anyone be willing to help me out?

Wondering what types of alternative surfaces for fire lanes in the midwest some of you have used. We need to be able to remove snow from the lane in the chicago area. The client does not want the looped fire lane to look like a road in the back of the complex. Some ideas tossed around are...

My company is working on a park site for the local park district. I was wondering if anyone had any standards for grading a baseball field w/dirt infield and a soccer field. Wondering most of all max slopes location of high points on the baseball field. And as far as the soccer feild does it...