August 31, 2024
Stormwater wetlands (or constructed wetlands) are structural post-construction stormwater controls similar to wet ponds whose design incorporates shallow zones and vegetation. As stormwater flows through the wetland, it removes pollutants through settling and biological uptake. Wetlands are among the most effective post construction stormwater controls in terms of pollutant removal while also offering aesthetic and habitat value. Stormwater wetlands are fundamentally different from natural wetland systems. They are designed specifically to treat stormwater and typically have less biodiversity than natural wetlands in terms of both plant and animal life. Several variations of stormwater wetlands exist, differing in relative amounts of dry, shallow and deepwater zones.