Stormwater Trees

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.

Two stormwater tree pits on Sepviva Street

Stormwater trees are planted in specialized pits installed on the sidewalk. Stormwater runoff is conveyed to a stormwater tree through sheet flow or a grate that is placed along the curb and connected to the tree pit. Stormwater trees that have the planting media lower than the surrounding elevation require a protective barrier. Multiple tree pits can be designed in series to maximize the potential for stormwater capture, treatment, and infiltration. Trees help reduce the volume of stormwater runoff through evapotranspiration.

Diagram of a stormwater tree pit
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