California Braces for Floods After Historic Winter Storms

Emerging from a years-long drought, the state now faces significant flood risks as temperatures rise and the abundant snowpack begins to melt.

1 minute read

May 1, 2023, 11:00 AM PDT

By Diana Ionescu @aworkoffiction


Unpaved road through Owens Lake bed with Sierra Nevada mountains in the background

SNEHIT PHOTO / Owens Lake, California

After a historic winter snow season, California’s Owens Valley is bracing for widespread flooding as the snowpack melt is expected to bring roughly 130 billion gallons of water via the Los Angeles Aqueduct alone.

According to an article by Louis Sahagún in the Los Angeles Times, “L.A.’s water lifeline to the Owens Valley has never before faced such a long-term flood threat. The vulnerability of the century-old system was brought into sharp focus on March 10, when storm flooding destroyed a 120-foot section of the aqueduct near Olancha.”

The unexpected breach—the first in the aqueduct’s history—highlighted the vulnerability of the Los Angeles water system, threatening supplies to 4 million LADWP ratepayers. Sahagún describes the strained relationship of the Los Angeles Aqueduct and the Owens Valley, where, in the early 20th century, the growing city illicitly bought land to build the aqueduct that would eventually lead to the demise of Owens Lake and have far-reaching impacts on the state’s ecology.

“Under a court order, the DWP has spent more than $2.5 billion over the last three decades transforming the lake’s grim heritage with dust control projects including shallow flooding that have reduced salty, alkaline toxic dust emissions by nearly 100%.” The lake bed now also draws tens of thousands of migratory birds that feed on local brine flies.

Thursday, April 27, 2023 in Los Angeles Times

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

High-rise apartment buildings in Waikiki, Hawaii with steep green mountains in background.

Study: Maui’s Plan to Convert Vacation Rentals to Long-Term Housing Could Cause Nearly $1 Billion Economic Loss

The plan would reduce visitor accommodation by 25,% resulting in 1,900 jobs lost.

April 6, 2025 - Honolulu Civil Beat

Two yellow and white Dallas Area Rapid Transit light rail streetcars at station in Dallas, Texas.

North Texas Transit Leaders Tout Benefits of TOD for Growing Region

At a summit focused on transit-oriented development, policymakers discussed how North Texas’ expanded light rail system can serve as a tool for economic growth.

April 3, 2025 - KERA News

Blue and white Seattle Link light rail train exiting concrete Downtown Bellevue Tunnel in Bellevue, WA.

Why Should We Subsidize Public Transportation?

Many public transit agencies face financial stress due to rising costs, declining fare revenue, and declining subsidies. Transit advocates must provide a strong business case for increasing public transit funding.

April 7, 2025 - Todd Litman

Amtrak Acela

How to Make US Trains Faster

Changes to boarding platforms and a switch to electric trains could improve U.S. passenger rail service without the added cost of high-speed rail.

April 11 - Bloomberg CityLab

Mural showing tools and craft supplies with banner reading 'Things are made here' in front of makerspace in Columbia, Missouri.

Columbia’s Revitalized ‘Loop’ Is a Hub for Local Entrepreneurs

A focus on small businesses is helping a commercial corridor in Columbia, Missouri thrive.

April 11 - Next City

Close-up of wood log with emerald ash borer larvae tracks etched in the wood.

Invasive Insect Threatens Minnesota’s Ash Forests

The Emerald Ash Borer is a rapidly spreading invasive pest threatening Minnesota’s ash trees, and homeowners are encouraged to plant diverse replacement species, avoid moving ash firewood, and monitor for signs of infestation.

April 11 - The Bemidji Pioneer