Fred Jackson Way Rain Gardens Updates

Contra Costa County's partner in the NRWC, Urban Tilth, began construction of its rain gardens along Fred Jackson Way (FJW) in September 2022. Rain gardens, otherwise referred to as green infrastructure or bio-retention basins, serve to filter and clean stormwater. In this case, this is the runoff from Fred Jackson Way and Brookside Drive. The rain gardens are designed to permit stormwater to soak in and around vegetation that is planted in “engineered soils. Rather than running off into San Pablo Creek, the raingardens prevent erosion from stormwater into the creek and will serve to improve its overall water quality. Construction of the FJW Rain Gardens is anticipated to be completed by December 2022, in time to perform its functions through the remainder of the current rainy season (the 6 construction era photos were taken by John Steere)."

1. rain garden signageBicyclist on the newly constructed FJW "Complete Street," passing by the FJW Rain Gardens under construction sign.

Additional photos provided here were taken on December 12, 2022 and depict the FJW raingardens under construction. These bio-retention basins consist of 3 cells that stretch from Brookside Drive north almost to San Pablo Creek.  Photos show completion of the “gray infrastructure” phase of construction, which includes the pouring concrete sidewalks, curbs, basin wells, weirs, and drop inlets. Phase 2 of construction, including the placement of engineered soils and the planting of vegetation in each of the 3 bio-retention "cells" should happen in the next few weeks.

2. drainage structure on Brookside with Larry Cornelius

The lead construction inspector, Larry Cornelius, stands at the southern end of the project, beside the drainage structure to stormwater pipes along Brookside Drive at the corner of FJW.

3. drainage structure on south end

Depicting the drainage structure facing FJW which carries filtered storm water from the southern bio retention basin cells into stormwater pipes that will cross FJW and drain into San Pablo Creek.

4. bio-retention basin, mid-basin looking north

 Finished concrete bio retention basins with freshly poured sidewalk and weirs, ready for engineered soil and plants to come…

5. basin and drop inlet looking South with workers

Near the northern end of the raingardens showing concrete "drop inlet," which is the size of a manhole. The inlet is meant for draining stormwater during extreme storm events, to prevent flooding and potential exceeding of the capacity of the bio-retention basin, which with the plants growing in it, serve as a kind of sponge to absorb pollutants.

 

6. MS4 storm drain looking south with worker

Past the northern end of the FJW Rain Gardens, a construction worker is installing the MS4 storm drain.