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Case Studies > Haddam Demonstration Site > Grass Swale

Grass Swale

Stormwater runoff from the existing parking lot is directed to a paved swale (photo 1). Once the stormwater leaves the paved swale it flows randomly causing sediment to build up and erosion problems. The project will attempt to design a vegetated swale with the proper subgrade to handle storm water flows that may come from the parking area and provide for some infiltration and renovation.

Swale Plan Paved Swale
  Photo 1 - Paves swale to direct stormwater to grass area. Notice sediment deposits and erosion at base. Taken 3/30/01.
 

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