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South LA Wetland Park

Beautiful Park on Former Brownfield Site

This nine-acre public nature park and sustainable stormwater treatment wetland was constructed on a former MTA Brownfield redevelopment site.

This multi-benefit project includes riparian habitat, trails, boardwalks, viewing platforms, outdoor classroom, educational signage, passive recreational space, and picnic benches.

Psomas designed treatment facilities that include diversion from a major existing subsurface storm drain, structural pretreatment, high and low flow pump station, and a 3-cell, 4.5-acre treatment wetland. The wetland treats a portion of the runoff from the contributing 525-acre watershed and uses that runoff to sustain the wetland.


  • Project Lead
  • Civil Engineering
  • Stormwater Treatment Facilities Design


City of Los Angeles


Los Angeles, CA


  • ACEC CA – Award of Honor
  • ACEC National – National Recognition Award
  • Community Conservancy Solutions – Green Solution Project of the year
  • AAEES, Environmental Engineering and Science Excellence: Superior Achievement Award
  • Envision™ Platinum rated


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