Spring Park had problems with soggy lawns and wet sidewalks. It's stream had
been piped underground directly to Sligo Creek years ago and was "leaking".
NRD, working with the City of Takoma Park, decided to "daylight" the stream
and re-introduce a creek to the park and its visitors.
Previously a grass swale designed to convey stormwater to the Potomac River
with all the pollutants from the road and fertilizers from the lawns. NRD
introduces native plants found in a wet meadow and riverjacks to slow down
the water and allow it to infiltrate. A roadside gravel area doubles as a
parking space and helps to filter water from the road before entering the
Rain gardens are an important small-scale tool to deal with non-point source
pollution. Bioengineered soils and plants retain rain water allowing it to
infiltrate by capturing the pollutants. NRD
designs rain gardens for schools, environmental organizations, residences,
and municipal parks.