Stormwater trees look like typical street trees, but these specially designed systems include a deep stone pit that holds excess water during intense rainstorms and as snow melts.
content...stormwater capture, treatment, and infiltration. Trees help reduce the volume of stormwater runoff through evapotranspiration....
Green gutters are narrow, shallow landscaped strips along a street’s curb line that are designed to allow stormwater runoff from both the street and the sidewalk to flow directly into the system.
content...gutter vegetation helps reduce the volume of stormwater runoff through evapotranspiration. Green gutters are typically...
Connected to the roof, downspout planters allow stormwater from gutters to flow through and be absorbed by vegetation. The systems temporarily store runoff and filter sediment and pollutants as water infiltrates through the planter.
content...runoff into the ground. Rather, they rely on evapotranspiration and short-term storage to manage stormwater....
A green roof is a roof fully or partially covered in plants and waterproof media that helps reduce the volume and velocity of stormwater runoff from roofs by temporarily storing stormwater, slowing excess stormwater release, and promoting evaporation.
content...stormwater, slowing excess stormwater release into the combined sewer system, and promoting evapotranspiration. Diagram of...
Cliveden Park collects runoff from two city blocks in Mt. Airy, thanks to a rain garden featuring step pools (pictured above).
content...system not only reduces the stormwater volume through evapotranspiration and infiltration, it also slows the...
This Section guides the designer in performing a site assessment – the necessary first step in designing a project that complies with the Philadelphia Water Department (PWD) Stormwater Regulations (Stormwater Regulations) or a grant-funded Stormwater Retrofit project. The designer must know the site location and general development plan before beginning the site assessment process. The […]