Monitoring Performance of Stormwater Best Management Practices

The creation of roadside ponds and wetlands is another approach to improving the quality of stormwater runoff. DelDOT currently inspects over 570 stormwater best management practices (BMPs) within its rights-of-way. This inspection includes evaluating each BMP for performance to reduce pollutants from stormwater runoff, assessing site conditions and inspecting the outlet structures. Though regular maintenance is performed on poor-performing BMPs and other stormwater system components, clogs from trash and silt still occur.

Stormwater Pond

Stone Check Dams in Swale

Bioretention Cell

Sand Filters