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St. Francis Dam (1926–1928) - failed March 12, 1928; San Clemente Dam - intentionally removed in 2015-2016 because of environmental issues; Van Norman Dams (1911–1971) - failed February 9, 1971, in 1971 San Fernando earthquake
The dam was built in the 1930s as a water supply facility for the city of Pasadena, but is now mostly utilized for flood control and flow regulation for groundwater recharge. Situated in northern Los Angeles County, the dam impounds the 417-acre (169 ha) Morris Reservoir in the Angeles National Forest, a few miles northeast of Azusa. From the ...
The Van Norman Dams, also known as the San Fernando Dams, were the terminus of the Los Angeles Aqueduct, supplying about 80 percent of Los Angeles' water, [5] until they were damaged in the 1971 San Fernando earthquake and were subsequently decommissioned due to the inherent instability of the site and their location directly above heavily populated areas.
Historic American Engineering Record (HAER) documentation, filed under Santa Ana River near junction of State Highways 71 and 91, Corona, Riverside County, CA: HAER No. CA-178, "Prado Dam", 7 photos, 109 data pages, 2 photo caption pages; HAER No. CA-178-A, "Prado Dam, Embankment", 12 photos, 2 photo caption pages; HAER No. CA-178-B, "Prado Dam ...
With a height of 112 ft (34 m) and holding 2,400 acre⋅ft (3,000,000 m 3) of water, it was the tallest multiple-arch reinforced concrete dam in the world at the time. [6] The dam's design combined with its record height was highly controversial; [7] the state mandated renovations in 1932, in which concrete buttresses were added to the dam face ...
The removal of four Klamath River dams along the California-Oregon border is in the spotlight — and for good reason. It is the largest dam removal in our nation’s history and represents the ...
The dam forms a reservoir called Shasta Lake, which is the largest man-made lake and third largest body of water in California with its capacity of 4,552,000 acre-feet (5,615 GL) [48] and surface area of 29,740 acres (12,040 ha) at maximum pool. The lake extends for 15.3 miles (24.6 km) up the Sacramento River and branches for more than 21 ...
The removal of the four dams, which were built without tribes’ consent between 1912 and the 1960s, has cleared the way for California to return more than 2,800 acres of ancestral land to the ...