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Prado Dam is an earth-fill
U.S. Army Corps of Engineers – Prado Dam
U.S. Army Corps of Engineers– Seven Oaks Dam
* * {{Authority control Dams in California Buildings and structures in Riverside County, California Santa Ana River Earth-filled dams United States Army Corps of Engineers dams Dams completed in 1941
dry dam
A dry dam is a dam constructed for the purpose of flood control. Dry dams typically contain no gates or turbines, and are intended to allow the channel to flow freely during normal conditions. During periods of intense rainfall that would otherw ...
across the Santa Ana River
The Santa Ana River is the largest river entirely within Southern California in the United States. It rises in the San Bernardino Mountains and flows for most of its length through San Bernardino and Riverside Counties, before cutting through ...
at the Chino Hills
The Chino Hills are a mountain range on the border of Orange, Los Angeles, and San Bernardino counties, California, with a small portion in Riverside County. The Chino Hills State Park preserves open space and habitat in them.
Geography
The C ...
near Corona, California
Corona (Spanish for "Crown") is a city in Riverside County, California, United States. At the 2020 census, the city had a population of 157,136, up from 152,374 at the 2010 census. The cities of Norco and Riverside lie to the north and north ...
in Riverside County
Riverside County is a county located in the southern portion of the U.S. state of California. As of the 2020 census, the population was 2,418,185, making it the fourth-most populous county in California and the 10th-most populous in the Unit ...
with the resulting impounded water creating Prado Flood Control Basin reservoir. The U.S. Army Corps of Engineers
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, anniversaries = 16 June (Organization Day)
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, battles_label = Wars
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, commander1 = ...
built the dam in Lower Santa Ana River Canyon. Its primary purpose is flood
A flood is an overflow of water ( or rarely other fluids) that submerges land that is usually dry. In the sense of "flowing water", the word may also be applied to the inflow of the tide. Floods are an area of study of the discipline hydrol ...
control and it is the downstream element of the Santa Ana River's flood control system, which is a natural constriction about upstream from the ocean. The area upstream from the dam contains of the watershed's . The dam's construction was authorized in 1936 and the flood of 1938 demonstrated its necessity. Construction was completed in 1941. Prado Flood Control Basin also provides water storage for groundwater recharge
Groundwater recharge or deep drainage or deep percolation is a hydrologic process, where water moves downward from surface water to groundwater. Recharge is the primary method through which water enters an aquifer. This process usually occurs in ...
operations.
Failure threat
On January 14, 2005, after days of heavy rain, water began seeping through an earthen extension. Authorities released water in order to relieve pressure and sent a flood warning to areas downriver of the dam. Over 3,000 residents were evacuated from their homes for nearly twenty-four hours for fear of flooding. The gymnasium atCorona High School
Corona (from the Latin for 'crown') most commonly refers to:
* Stellar corona, the outer atmosphere of the Sun or another star
* Corona (beer), a Mexican beer
* Corona, informal term for the coronavirus SARS-CoV-2, which causes the COVID-19 di ...
was converted by the American Red Cross
The American Red Cross (ARC), also known as the American National Red Cross, is a non-profit humanitarian organization that provides emergency assistance, disaster relief, and disaster preparedness education in the United States. It is the desi ...
into a temporary shelter.
Upgrades
As of 2005 work to increase the downstream channel's capacity from per second is ongoing. The total costs of the improvements is estimated at $400 million.
See also
*List of dams and reservoirs in California
Following is a list of dams and reservoirs in California in a sortable table. There are over 1,400 named dams and 1,300 named reservoirs in the state of California.
Dams in service
:''Please add to this list from the below sources.''
Former ...
* List of largest reservoirs of California
This is a list of the largest reservoirs, or man-made lakes, in the U.S. state of California. All fifty-three reservoirs that contain over of water at maximum capacity are listed. This includes those formed by raising the level of natural lakes, ...
References
*External links
U.S. Army Corps of Engineers – Prado Dam
U.S. Army Corps of Engineers– Seven Oaks Dam
* * {{Authority control Dams in California Buildings and structures in Riverside County, California Santa Ana River Earth-filled dams United States Army Corps of Engineers dams Dams completed in 1941