inżynieria: St. Francis Dam

Evidence: 100 • authority: 72

The St. Francis Dam, or the San Francisquito Dam, was a concrete gravity-arch dam located in San Francisquito Canyon in northern Los Angeles County, California, United States, that was built between 1924 and 1926. The dam failed catastrophically in 1928, killing at least 431 people in the subsequent flood, in what is considered to have been one of the worst American civil engineering disasters of the 20th century and the third-greatest loss of life in California history. The dam was built to serve the growing water needs of the city of Los Angeles, creating a large regulating and storage reservoir that was an integral part of the Los Angeles Aqueduct. It was located in San Francisquito Cany…

Evidence: 45 • authority: 72

San Francisquito Creek, in Los Angeles County, is a tributary stream of the Santa Clara River. It drains the south facing slopes of the Sierra Pelona Mountains of the San Gabriel Mountains within the Transverse Range of California, United States. The closest populated place to the creek is Green Valley that lies along the upper course of the creek, in the upper part of San Francisquito Canyon, southeast of the source of the creek at San Francisquito Pass. At its mouth and confluence with the Santa Clara River is Santa Clarita.

Evidence: 45 • authority: 72

San Francisquito Pass is a mountain pass in the Sierra Pelona Mountains, located northeast of Green Valley and Santa Clarita, in northern Los Angeles County, California.

Evidence: 45 • authority: 72

San Francisquito Canyon is a canyon created through erosion of the Sierra Pelona Mountains by the San Francisquito Creek, in Los Angeles County, Southern California.

Evidence: 38 • authority: 72

The Los Angeles Aqueduct system, comprising the Los Angeles Aqueduct (Owens Valley aqueduct) and the Second Los Angeles Aqueduct, is a water conveyance system, built and operated by the Los Angeles Department of Water and Power under the supervision of the department's Chief Engineer, William Mulholland. The system delivers water from the Owens River in the eastern Sierra Nevada mountains to Los Angeles. The aqueduct's construction was controversial from the start, as water diversions to Los Angeles eliminated the Owens Valley as a viable farming community. Clauses in the city's charter originally stated that the city could not sell or provide surplus water to any area outside the city, for…