Tetra Tech helped improve water quality and enhance open space in a Los Angeles, California, neighborhood.

The City of Los Angeles selected Tetra Tech to provide pre-design, design, and engineering services during construction for the Albion Riverside Park project, located adjacent to the Los Angeles River. Our work included support services for Envision certification from the Institute for Sustainable Infrastructure (ISI) throughout the project. The project involved transforming a six-acre site, previously used for dairy warehousing and distribution, into a riverfront park and recreational facility that benefits nearby disadvantaged and low-income neighborhoods. This project is an important part of the City’s overall efforts through the Proposition O Bond Program to improve water quality and reduce pollutant loads that conveyed to the rivers, lakes, and ocean within the Los Angeles region.

The project aimed to develop the site for beneficial use and implement low impact development, green stormwater infrastructure, and best management practices (BMP) to improve the water quality of stormwater prior to discharge into the Los Angeles River and ultimately into the Pacific Ocean.

In addition to collecting, treating, and infiltrating on-site runoff, the project diverts stormwater and dry weather flows from an existing storm drain, which collects runoff from a 300-acre watershed. The diverted flows are then treated and infiltrated or used within the park. The BMPs installed included bioretention facilities, bioswales, pervious pavement, and subsurface infiltration areas.

The remainder of the park was developed for recreational uses, water reuse education, and improved access along the river. Recreational amenities at the site include multipurpose athletic fields, walking paths, adult fitness zones, children’s play areas, picnic areas, a new parking lot with permeable paving, site landscaping, and a plaza.

The benefits of this project are not exclusive to water quality. Although the pollutant loads are expected to decrease dramatically and exceed the goals of Proposition O, this project also provides multiple benefits to the neighborhood by including visual and educational design elements that inform the community about the Los Angeles River and other projects that are part of the Los Angeles River Revitalization Master Plan.

The Albion Riverside Park project received an Envision Gold award from ISI as a result of its water quality improvement, climate change adaptability, protection and replenishment of natural resources, and open space enhancement.


  • 2019: Outstanding Parks and Recreation Project of the Year by American Society of Civil Engineers
  • 2019: Best Projects Award by Engineering News-Record
  • 2019: Envision Gold Award by ISI