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A second one is the Santa Ana River Dischargers Association. Both have conducted studies as to what beneficial uses the Santa Ana River would have aside from water supply and flood control, as well as the removal of some of the concreted sections of the lower river.
Its primary purpose is flood control and it is the downstream element of the Santa Ana River's flood control system, which is a natural constriction about 30.5 mi (49.1 km) upstream from the ocean. The area upstream from the dam contains 2,255 sq mi (5,840 km 2 ) of the watershed's 2,650 sq mi (6,900 km 2 ).
Aerial view of the Santa Ana River and the dam. Seven Oaks Dam is a 2,980-foot (910 m) long arched embankment structure standing 550 feet (170 m) high above the Santa Ana River and 650 feet (200 m) above its deepest foundations. The dam is 40 feet (12 m) wide at the crest and over 2,200 feet (670 m) wide at the base.
Map showing the main Orange County watersheds and watercourses. This is a list of rivers of Orange County, California, part of the Greater Los Angeles Area in Southern California.The Santa Ana River and San Gabriel River are the largest in Orange County; their extensive watersheds extend into neighboring Los Angeles, Riverside and San Bernardino Counties.
The Santa Ana River in the U.S. state of California has over 20 significant tributaries and there are over 50 significant streams in the watershed. List
The warm and cold flavors of Santa Ana winds are generally rooted in the same dynamics. But cold Santa Ana wind events, Houk said, are driven by mid- and upper-level low pressure and colder air aloft.
Footage of flooding on the Santa Ana River, 1938. In Riverside and Orange Counties, the Santa Ana River reached a peak flow of about 100,000 cubic feet per second (2,800 m 3 /s), [18] completely overwhelming the surrounding dikes and transforming low-lying parts of Riverside County and Orange County into huge, shallow lakes. [19]
Santa Ana winds will increase into early Tuesday, bringing the threat of damaging winds gusting from 60 to 80 miles per hour across the prone mountain regions surrounding Los Angeles.Spanning from ...