Piggyback Yard Conceptual Master Plan

Piggyback Yard Conceptual Master Plan

What began as a collaborative pro bono effort has become a symbol of the LA River’s potential transformation. The vision is to recalibrate an existing rail facility into a mixed-use development surrounding 80 acres of park land and habitat where the LA River can flood during storm events. The design features a bio-engineered approach to hydrology with a 15-acre constructed wetland, a daylit stormwater culvert, and a series of biotreatment pools to clean urban runoff before it enters the river. New housing, services, and better pedestrian and bicycle connections to USC Health Sciences campus and the Brewery Arts Colony as well as across the river will mend Boyle Heights’ place in the fabric of Downtown Los Angeles.


Friends of the LA River (FoLAR)


125 acres


Los Angeles, California



Project team

  • Michael Maltzan Architects Architect
  • Che Salette Architects Urban Design
  • Perkins+Will Urban Design


  • 2013 American Society of Landscape Architects,
    National Award in Analysis and Planning
  • 2012 LA Business Council, Design Concept Category
  • 2011 Southern California Development Forum, Un-built Concept Award
  • 2011 American Institute of Architects California Council, Merit Award
  • 2011 Westside Urban Forum, Open Space Award
  • 2010 American Society of Landscape Architects,
    Southern California Chapter,
    Merit Award