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Maintenance versus Maturation: Constructed Storm-Water Wetland’s Fifth-Year Water Quality and Hydrologic Assessment
Publisher: American Society of Civil Engineers
Abstract: Constructed storm-water wetlands (CSWs) have become popular storm water control measures (SCMs) in low-lying coastal environments, offering a hybrid between larger detention practices (wet ponds) and newer green infrastructure ...
Are Bioretention Cells Being Installed Per Design Standards in North Carolina? A Field Study
Publisher: American Society of Civil Engineers
Abstract: Forty-three bioretention cells (BRCs) throughout North Carolina were assessed for maintenance needs, soil media composition, and as-built surface storage volume to determine whether BRCs are typically constructed per their ...
Impacts of Construction Activity on Bioretention Performance
Publisher: American Society of Civil Engineers
Abstract: Bioretention cells are incorporated as part of low impact development (LID) because of their ability to release influent runoff as exfiltration to the soil or evapotranspiration to the atmosphere. However, little care is ...
Evaluating Four Storm-Water Performance Metrics with a North Carolina Coastal Plain Storm-Water Wetland
Publisher: American Society of Civil Engineers
Abstract: Storm-water best management practices (BMPs) are typically assessed using the performance metric of pollutant concentration removal efficiencies. However, debate exists whether this is the most appropriate metric to use. ...
Impacts of Media Depth on Effluent Water Quality and Hydrologic Performance of Undersized Bioretention Cells
Publisher: American Society of Civil Engineers
Abstract: Fill media and excavation volume are the main costs in constructing bioretention cells, but the importance and impact of media depth in these systems is relatively unknown. Two sets of loamy-sand-filled bioretention cells ...
Retrofitting Residential Streets with Stormwater Control Measures over Sandy Soils for Water Quality Improvement at the Catchment Scale
Publisher: American Society of Civil Engineers
Abstract: Impervious cover (IC) has been shown to increase runoff volumes, peak discharges, and pollutant loads to streams, which can lead to degraded water quality and biological integrity. Stormwater control measures (SCMs) have ...
Field Evaluation of Four Level Spreader–Vegetative Filter Strips to Improve Urban Storm-Water Quality
Publisher: American Society of Civil Engineers
Abstract: An assessment of the performance of four level spreader–vegetative filter strip (LS-VFS) systems designed to treat urban storm-water runoff was undertaken at two sites in the Piedmont of North Carolina. At each site, a ...