French Drains in Parking Lots

French drains are often used in parking lot to resolve ground water problems compromising the rock base and destroying the asphalt prematurely. Typically constructed with a perforated schedule 40 PVC drain pipe covered with a drain cloth buried in one inch clean rock.

Channel Drain and Trench Drains

Concrete channel drains and trench drains are used in parking lots to collect large amounts of surface water over a wide area. The rain water is routed to a sewer inlet or manhole using either a 6" inch or 8" inch PVC drain pipe.

Channel Drain Grates

Parking lot trench drains consist of several Heavy Duty, or Extra Heavy Duty 15" x 30" grates for different load ratings based on vehicle traffic. The AASHTO, or American Association of State and Transpiration Officials determine the ratings based on vehicle load capacity.

Concrete Sewer Inlets

Sewer inlets are used to collect surface water in a concentrated area, or low area of a parking lot and connected to a manhole. MSD manholes are either made of brick ( older style ) or concrete. Manholes are often in need of minor repair when the sewer inlet needs to be replaced.

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St Louis Drainage Solutions LLC -

 

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