A New Master Plan for the Los Angeles River

The L.A. County Board of Supervisors voted to approved a new master plan for the L.A. River—the “Reimagined River.”

2 minute read

June 22, 2022, 9:00 AM PDT

By James Brasuell @CasualBrasuell


A cable-stayed bridge designed spans the water of the Los Angeles River, which is placid and dotted with rocks.

The North Atwater Bridge where it spans the Los Angeles River near Griffith Park. | Noah Sauve / Shutterstock

The Los Angeles County Board of Supervisors approved a new master plan for the Los Angeles River earlier this month, to replace the Los Angeles River Revitalization Master Plan approved by the county in 2007.

According to an article by Pilar Marrero for Ethnic Media Services, the Board of Supervisors voted unanimously to approved the Los Angeles River Master Plan, dubbed “The Reimagined River,” despite a last-minute decision by local environmental and community organizations to withdraw support for the plan the day before the board vote.

“During a press conference at Maywood Riverfront Park, representatives of these groups had harsh words for the Master Plan and the county leadership,” reports Marrero.

According to Public Works Department Executive Director Mark Pastrella, the discord comes from a question of how much concrete to remove from the river.

“[Pastrella] added that the channel provides protection to residential areas that ‘almost every year, face tremendous flows of waters,’” according to Marrero. “Removing concrete would require building more dams, reducing habitats, and displacing more than 100,000 people now living near the river, he added.”

The article also notes one of the more controversial components of the new master plan—a proposed “South East LA Cultural Center,” built on a platform park elevated over the river. Frank Gehry, whose firm had a controversial role in the master plan process, originally proposed the cultural center project.

For more background on the master plan, see an article by Alejandro JSM Chavez and Diana Martinez published by the San Fernando Valley Sun a few days before the board’s vote. See also previous coverage of the Los Angeles River Master Plan.

Wednesday, June 15, 2022 in Ethnic Media Services

portrait of professional woman

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching. Mary G., Urban Planner

I love the variety of courses, many practical, and all richly illustrated. They have inspired many ideas that I've applied in practice, and in my own teaching.

Mary G., Urban Planner

Get top-rated, practical training

Concrete Brutalism building with slanted walls and light visible through an atrium.

What ‘The Brutalist’ Teaches Us About Modern Cities

How architecture and urban landscapes reflect the trauma and dysfunction of the post-war experience.

February 28, 2025 - Justin Hollander

Complete Street

‘Complete Streets’ Webpage Deleted in Federal Purge

Basic resources and information on building bike lanes and sidewalks, formerly housed on the government’s Complete Streets website, are now gone.

February 27, 2025 - Streetsblog USA

Downtown Los Angeles skyline at sunset with new 6th Street Viaduct arches in foreground.

Downtown Los Angeles on the Rise: A Promising 2025

Fueled by new developments, cultural investments, and a growing dining scene, downtown Los Angeles is poised for significant growth in 2025, despite challenges from recent wildfires and economic uncertainties.

February 21, 2025 - Los Angeles Downtown News

Informational plaque in front of paved walkway next to tall green trees in Black Hawk State Historic Site, Illinois.

Supporting Indigenous Land Reclamation Through Design

Harvard students collaborated with the Sac and Fox Nation to develop strategies for reclaiming and co-managing ancestral lands in Illinois, supporting Indigenous sovereignty through design, cultural storytelling, and economic planning.

17 minutes ago - Harvard GSD

Lush Five Rivers Metropark in Dayton, Ohio with flowers and green trees on a sunny day.

A Plan to Expand Tree Canopy Across Dayton

Dayton is developing an urban forest master plan, using a $2 million grant to expand its tree canopy, address decades of tree loss, and enhance environmental equity across the city.

1 hour ago - Dayton Daily News

Close-up of worker installing white electric heat pump outdoors.

Decarbonizing Homes: The Case for Electrifying Residential Heating

A new MIT study finds that transitioning residential heating from natural gas to electric heat pumps can significantly reduce carbon emissions and operational costs.

2 hours ago - MIT News

Urban Design for Planners 1: Software Tools

This six-course series explores essential urban design concepts using open source software and equips planners with the tools they need to participate fully in the urban design process.

Planning for Universal Design

Learn the tools for implementing Universal Design in planning regulations.