San Diego County / Southern California

The latest news and analysis covering water issues in the San Diego County region and Southern California.

A Race Against Mother Nature As Officials Send Water Cascading Out Of Lake Oroville

With more storms expected to slam Northern California later this week, officials worked frantically Monday to drain water from brimming Lake Oroville in hopes of heading off a potentially catastrophic flood. The operators at America’s tallest dam found themselves in a precarious position Monday, with both of the spillways used to release water compromised and the reservoir […]

Here’s The Nightmare Scenario At Oroville Dam That Officials Are Fighting To Prevent

Any dam engineer would be terrified of this nightmare scenario — the possible collapse of a retaining wall in California’s second largest reservoir.  That’s the prospect officials faced when they ordered more than 100,000 people evacuated downstream of the nation’s tallest dam Sunday. It occurred insidiously: a pocket of erosion that crept ever closer to a low concrete […]

Too Much Water: How Oroville Dam Problems Became A Crisis

The mass evacuations underway below the Oroville Dam capped a week of frantic efforts to prevent flooding as America’s tallest dam reached capacity and its main spillway was severely damaged. Here is a brief explanation of the events so far. On Saturday, water levels reached so high that an emergency spillway was used for the […]

Break in Recent Storms Gives Engineers at Oroville Dam Hope

Friday afternoon the sun peaked through the clouds above Lake Oroville and a rainbow arched over the Feather River. It was a welcome sight for state engineers who were battling the lake’s worrisome rise with torrential releases down the reservoir’s broken concrete spillway. The break in storms and a drop in the volume of water […]