David M. Gonzales Park Stormwater Capture Project


The Project will collect runoff from a 759-acre drainage area and potentially capture 489 acrefeet per year. Proposed scope of work at David M. Gonzales would include the installation of two infiltration galleries with a maximum combined area of 2.9 acres to capture stormwater from the Los Angeles County Flood Control District storm drains and infiltrate into the San Fernando Groundwater Basin. The infiltration gallery would overlap open space and two existing sports fields, including the infield and outfield of one baseball field and one softball field. In addition to the galleries, other underground stormwater components will include the installation of two diversion structures, piping, desilting basins, and flow-measuring devices. The Park will be improved with two new baseball fields with backstops, dugouts, batting cages, and field lighting, new multi-purpose field, shaded bleachers, hydration stations, and educational signage. Most components will be within RAP’s property except for the diversion structures and conveyance pipes, which will be within the public right-ofway. Environmental studies started in September 2019 and pre-design started in December 2019. Design will begin September/October 2020. The first community outreach meeting was held in August 2020 and the second community outreach meeting was held in October 2020.

Status: Design
Cost: $39,118,228
Funding: LADWP; Safe Clean Water Program RD2 (pending)
Agency Lead: City of Los Angeles
Footprint: 2.9 acres
Drainage Area: 759 acres
Volume Capture: 489 acre-feet/yr
Implemented Control Measures: Underground infiltration gallery to infiltrate stormwater
Key Benefits: Increase local water supply, improve downstream water quality in receiving water bodies, increase capacity in flood control infrastructure, expand park infrastructure, job creation, environmental education