CA officials have the power to fix the state’s riskiest dams. They’ve never used it

California’s 40 most hazardous dams would endanger up to 1.5 million people if they failed.

1 minute read

October 15, 2026, 7:00 AM PDT

By Zachary Whalen


Drone photo of dam on upper Otay Lakes Reservoir. It is covered in graffiti.

The Savage Dam in San Diego County. San Diego, Los Angeles and the Bay Area are particularly vulnerable to dam failures. | Manuela Durson

California’s dams — 57 of which are in poor or unsatisfactory condition — “continue to pose a risk to public safety” as an El Niño winter looms, warned the California State Auditor. In 2017, lawmakers gave California the power to punish dam owners if their infrastructure violated safety requirements. A recent audit found that the state has never used that power.

“The 40 riskiest dams — rated high or extremely high hazard — are located throughout the state, but cluster near densely populated coastal cities. Should these dams fail, the auditor reported, ‘they could collectively endanger as many as 1.5 million people and cause more than $265 billion in economic damage,’” Rachel Becker writes for Cal Matters.

San Diego, Los Angeles and the Bay Area are particularly vulnerable to dam failures. California engineers have notified the state of 44 dams that violate safety requirements, but the state has “has never taken punitive enforcement actions against dam owners that fail to remedy their violations,” the auditor wrote.

Wednesday, October 14, 2026 in Cal Matters

Young Professional

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 and Environmental 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 and Environmental Planner

Get top-rated, practical training for planners

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 14, 2026 - Zachary Whalen

A crane lifts a manufactured house, with is rectangular and does not yet have a roof.

HUD modernizes 50-year-old manufactured housing framework

The Next Generation Manufactured Housing Action Plan establishes new energy-efficiency standards for manufactured homes, and new guidelines for anchoring them.

October 8, 2026 - Boston Real Estate Times

Cars driving under automatic congestion pricing toll machines on Broadway next to the Trump International Hotel in Manhattan, New York City.

Data reveals that NYC’s bet on congestion pricing has paid off

After almost two years of the program, reports show positive impacts on traffic and air quality and no disruptions to parking.

October 13, 2026 - Marcelo Remond

Pedestrians in NYC cross the street.

A gas leak in NYC is costing residents $300 million

More than 90% of NYC’s electricity is from natural gas. About 2% of that gas is leaking and escaping into the air.

4 seconds ago - Gothamist

Drone photo of dam on upper Otay Lakes Reservoir. It is covered in graffiti.

CA officials have the power to fix the state’s riskiest dams. They’ve never used it

California’s 40 most hazardous dams would endanger up to 1.5 million people if they failed.

1 hour ago - Cal Matters

Aerial footage of the Hydrogen Power Plant in Fusina, Venice, Italy, highlighting its sustainable technology and industrial landscape.

Trump is shattering Pennsylvania's dreams of becoming a leader in hydrogen energy

Progress on both of the state’s planned hydrogen hubs ground to a halt after Trump took office.

2 hours ago - Inside Climate News