Alger Park -
Urban Stream Restoration
EQR was contracted by the Department of Energy and Environment to restore 1,500 linear feet of stream channel within Alger Park, a seven-acre park in the Anacostia watershed in Southeast Washington, D.C., where an estimated 41% of the watershed is impervious. Over time the amount of stormwater runoff entering this stream channel caused it to become a heavily eroded gully (a water-worn ravine) with no storm water treatment or management. EQR’s goal was to restore the habitat, water quality, and stability to one of the most highly eroded streams in Washington, D.C. Biohabitats Inc, the designer, developed a stormwater step pool conveyance system for this site with a series of wetland grade controls at the bottom of the park where the water is connected to a floodplain before exiting the park through a trash rack.
EQR made modifications to six existing storm sewer outfalls; some include bubbler drainage grates. Also, EQR constructed a technique called Regenerative Storm Water Conveyance, (RSC). This technique is an ecosystem restoration practice for eroded or degraded outfalls and drainage channels in the mid-Atlantic region.
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