Silva Cell Initiative

The Tree Conservancy promotes installing tree filter bioretention systems on Greenwich Avenue and in town parking lots. These systems hold unlimited amounts of soil while supporting traffic loads beneath paving and other hardscapes. Trees are planted in engineered soil with structures that allow infiltration of stormwater, nutrient uptake, and prevention of vehicle traffic soil compaction. Within one year of installation, a single project can reduce over a million gallons of stormwater discharge, eliminate or reduce associated pollutants and provide increasing amounts of shade as the trees mature. Mature trees reduce airborne particulate pollution and surface pavement temperatures.

Installation on Greenwich Avenue


Diagram showing Silva Cell System