St. Francis Dam Disaster
National Monument & Memorial
(USFS)
(USFS)
Location: 40 miles north-west from downtown Los Angeles, California
This curved concrete gravity dam is notorious for a disastrous flood that killed at least 431 people in March 1928. Built by William Mulholland, known as the father of Los Angeles’ municipal water system, the 1,300ft span held a year’s supply for the entire city about 40 miles to the south.
Just before midnight on 12 March the dam fractured, sending a 180ft-high wall of water rushing down the San Francisquito Canyon. In the course of just six hours, the flood caused millions of dollars in damage and destroyed numerous homes, ranches and other properties on its path to the Pacific Ocean.
The dam’s collapse is considered one of the worst civil engineering failures of the 20th century and is the second deadliest tragedy in California’s history, after the 1906 San Francisco earthquake and fire.
Today you can visit the remains of the dam, located off Francisquito Road in Santa Clarita. Large chunks of debris can still be found scattered about the creek bed south of the dam’s original site, while the Santa Clarita Valley Historical Society holds tours of the wreckage every March.
https://www.fs.usda.gov/Internet/FSE_DOCUMENTS/fseprd872458.pdf
From SCVNews.com:
The bill would also establish a 440-acre national monument around the area that would be managed by the U.S. Forest Service, and it would authorize the U.S. Secretary of Agriculture to establish the memorial through the acceptance of donations. Backers intend to raise funds from the private sector to build and manage a visitors center.
The president’s signature means the U.S. Forest Service now has three years to present Congress with a plan for the memorial. Funds will be raised by a nonprofit foundation.
California History
http://ce.jhu.edu/perspectives/handouts_unprotected/stfrancis.pdf