Santa Clarita Valley History In Pictures
> ST. FRANCIS DAM
Concrete Dam Rubble
San Francisquito Canyon


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Concrete rubble from the face of the St. Francis Dam, in San Francisquito Canyon. According to dam historian Frank Rock, this is block 19, the only remaining fragment with the recognizable stair steps.

Undated, unattributed 3¼x5-inch glossy print from a flea market. One of two views.


Construction on the 600-foot-long, 185-foot-high St. Francis Dam started in August 1924. With a 12.5-billion-gallon capacity, the reservoir began to fill with water on March 1, 1926. It was completed two months later.

At 11:57:30 p.m. on March 12, 1928, the dam failed, sending a 180-foot-high wall of water crashing down San Francisquito Canyon. An estimated 431 people lay dead by the time the floodwaters reached the Pacific Ocean south of Ventura 5½ hours later.

It was the second-worst disaster in California history, after the great San Francisco earthquake and fire of 1906, in terms of lives lost — and America's worst civil engineering failure of the 20th Century.


DI2804: 19200 dpi jpeg from original print.
ST. FRANCIS DAM
Sharon Divis Collection

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Dam & Reservoir

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Floodpath, Rubble

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Block 5

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West Abutment

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Empty Reservoir

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Tombstone

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Climbing Tombstone

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Visiting Tombstone

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Picnic at Dam Site

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Dam Rubble x2

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Tombstone & Perimeter Road

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Upended SPRR Track

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Wrecked Farmhouse

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PH-2 Reconstruction

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PH-2 Reconstruction

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PH-2 Reconstruction

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