Mapleview Street Biofiltration and Channel Restoration Project

Total Cost: $5.5M | Completed Spring 2024 | Funded by Tax Dollars and Proposition 1 Grant Funding

2024 Outstanding Sustainable Engineering Project, American Society of Civil Engineers, San Diego

2024 Public Achievement Award (Under $15M), Construction Management Association of America

2024 Project of the Year (Sustainable Category), American Public Works Association, San Diego

2024 Gala Recognition for One of the Projects of the Year, American Public Works Association, San Diego

2024 Outstanding BMP Implementation Project, California Stormwater Quality Association

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This project improves water quality in the San Diego River Watershed by removing pollutants from stormwater runoff, and enhances pedestrian safety and mobility along Mapleview Street.

The priority pollutant in this watershed is bacteria, which enters the storm drain system through pet waste, human waste, and litter. Learn how you can limit your watershed impact with our Educational Resources.

Learn more about the San Diego River Watershed on Project Clean Water.

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Green Infrastructure elements of this project include:

2,500 feet of sidewalk added and improved

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The new and improved sidewalk enhances pedestrian safety and mobility by closing gaps in existing sidewalks and adding planted barriers that separate pedestrians from traffic.

550 feet of storm drain and channel improvements

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These improvements have water quality and flood control benefits. 

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Biofiltration basins to improve water quality

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Biofiltration basins remove pollutants, such as bacteria and debris, from stormwater runoff by allowing the runoff to filter through native plants and soil. It is a natural process that improves water quality and provides benefits such as green space and flood reduction.

Dispersion areas to remove pollutants

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Dispersion areas are small garden-like spaces where stormwater spreads out and filters through plants and soil, which clean the water and help it soak into the ground.

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The County of San Diego is proud to implement projects like this to improve water quality, support sustainability, and enhance our local communities.

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