The Central-Jefferson High Green Alley Multi-Benefit Stormwater Project will renovate a 54,446 square-foot public alley right of way in a high density 100-acre neighborhood block in South Los Angeles. Project improvements will include the installation of high albedo pavement, permeable pavers, permeable pavement, street tree planting, infiltration trenches, a dry well system, planting of native vines and trees, educational and mile marker signage, public art and traffic calming measures including planted bump-outs, crosswalk striping, lights and way finding signage. Of the total alley, 34,733 sq-ft will include stormwater Best Management Practices (BMPs) and an underground drywell system capturing a total tributary area of approximately 7.31
acres. The remaining 19,713 square feet of alley will include stormwater BMPs, comprised of native vine and tree plantings, and porous pavement. The green alley network in total will capture runoff and percolate at least 1,890,000 gallons of stormwater per year.
The Trust for Public Land
Increase water sustainability in urban South Los Angeles through reducing stormwater runoff and increasing aquifer recharge; use urban greening strategies to provide measurable additional environmental and social benefits
Recreation/Access/Interpretation, Infrastructure Improvement, Water Management
Project Benefits a Disadvantaged Community (or SDAC):