Overview
The underground stormwater device captures rainwater from roadways, roofs, and other impervious surfaces. Stormwater runoff then drains into the soil where the tree roots help remove pollutants.
GSI Components
- Trees: Absorb rainwater and store carbon, which helps cool the climate.
- Soil: Helps trees grow and removes pollutants from rainwater runoff
- Underground Chambers: Hold the pavement and keep the soil loose so trees can continue to grow.
Visit John Chavis Memorial Park to see an example of this GSI!

Chavis Park Suspended Pavement System Under Construction