I have a need to determine if the discharge from a storm drainage pipe into a stream with flowing water should have outlet protection. A 15" pipe outlet is located in a stonewall with an invert approximately 1' above the stream bed. Under design conditions, the water surface elevation in the...
I have an existing pervious concrete parking lot project that the client is asking to replace with conventional asphalt. I need to utilize the stone base (ASTM #4) for storm water management. I am looking for some ideas as to if a choker course is needed for the asphalt and/or paving equipment...
