Skip to main content
U.S. flag

An official website of the United States government

Bluff Erosion From El Nino 2010

Detailed Description

Bluff erosion during the 2009–10 El Niño undermined the Great Highway guardrail at the southern end of Ocean Beach, San Francisco, California. The shoreline eroded, on average, 55 meters that winter, leading to lane closures on the highway and an emergency $5-million revetment along the base of this bluff. Photo taken by Jeff Hansen, USGS, 20 January 2010.


Public Domain.