The Mapleview Street Biofiltration and Channel Restoration Project proposes to improve surface water quality through implementation of green infrastructure and improved conveyance of stormwater flows. A series of biofiltration basins will be constructed within the shoulder of the roadway, allowing for infiltration and treatment of stormwater runoff. The project also adds additional green space, and new sidewalks to enhance pedestrian safety and mobility. Approximately 2,500 linear feet of new sidewalk and pedestrian ramps will be installed to close the sidewalk gaps along Mapleview Street between Vine Street and Pino Drive.

Community: Lakeside

Drainage Area Treated: 5.8 acres

Pollutants Removed: Trash, sediment, debris, bacteria, nutrient, and metals.


What to Expect

The project is currently under construction. Construction began in mid-November 2022 and is estimated to be completed in Fall 2023.

The first phase of construction will impact the segment of Mapleview Street between Vine Street and Ashwood Street. In early 2023, construction impacts will expand eastward to Pino Drive.

Please note that construction dates are subject to change due to compliance requirements, inclement weather, and/or other unforeseen circumstances. During construction, the County will make every effort to minimize disruptions along Mapleview Street. While most work will occur within the public road right-of-way, temporary access to private property will be needed in some cases. There will be temporary impacts to utilities, and to both vehicular and pedestrian traffic. Traffic control measures, including signage placed prior to and during construction, will be implemented to ensure the safety of our customers.


Mapleview Street Stormwater Dispersion Area


Water Quality Improvements

When it rains, stormwater runoff will be diverted into green infrastructure elements for treatment, where natural settling and soil filtration processes will capture pollutants before they are discharged to nearby surface waters. Stormwater dispersion areas will add additional green space along the roadway.

Improvements to approximately 550 feet of storm drain conveyance channel will improve drainage in the area.

Mapleview Street Sidewalk Improvements


Sidewalk Improvements

Approxiamately 2,500 linear feet of sidewalk within the project area will be improved, along with new pedestrian ramps and driveway improvements. Pedestrians will enjoy additional buffer space between sidewalks and street traffic.


Funding for this project has been provided in part under the Proposition 1 - the Water Quality, Supply, and Infrastructure Improvement Act of 2014 through an agreement with the State Water Resources Control Board.

The County of San Diego Project Manager for this project is René Vidales. Contact information for Mr. Vidales is provided below: