Silver Lake Beach Parking Lot

Massachusetts government initiated the Permeable Paving Materials and Bioretention in the Silver Lake Beach Parking Lot, aiming to reduce runoff volume, improve water quality, and enhance groundwater recharge. The project incorporated permeable paving materials, bioretention cells, and two ten-foot-wide vegetated water quality swales. The 8000-square parking space were paved with porous pavers, while the 16,600-square feet parking aisles were paved with porous asphalt. Surface runoff would be treated by bioretention cells to process the nutrients and contaminants. Finally, the bioswales improve water quality as plants filter the runoff. The project was monitored by USGS and maintained by Wilmington Department of Public Works.