Lake Henshaw
Encyclopedia
Lake Henshaw is a Reservoir
in San Diego County, California
at the southeast base of Palomar Mountain
, approximately 70 miles miles northeast of San Diego, California
and 100 miles miles southeast of Los Angeles
.
The lake covers approximately 1140 acres (461.3 ha) and holds 55000 acre.ft of water when full (lowered in 1978 from its original capacity of 203581 acre.ft out of earthquake concerns), in addition to groundwater
stored in its local basin. It drains an area of 207 square miles (536.1 km²) square miles at the source of the San Luis Rey River
.
The lake was constructed in 1923 with the building of Henshaw Dam, an earth dam 123 feet (37.5 m) tall and 650 feet (198.1 m) long. It is owned by the Vista Irrigation District and used primarily for agricultural irrigation.
Reservoir
A reservoir , artificial lake or dam is used to store water.Reservoirs may be created in river valleys by the construction of a dam or may be built by excavation in the ground or by conventional construction techniques such as brickwork or cast concrete.The term reservoir may also be used to...
in San Diego County, California
San Diego County, California
San Diego County is a large county located in the southwestern corner of the US state of California. Hence, San Diego County is also located in the southwestern corner of the 48 contiguous United States. Its county seat and largest city is San Diego. Its population was about 2,813,835 in the 2000...
at the southeast base of Palomar Mountain
Palomar Mountain
Palomar Mountain is a mountain in the Peninsular Ranges in northern San Diego County. It is famous as the location of the Palomar Observatory and Hale Telescope, and known for the Palomar Mountain State Park.-History:...
, approximately 70 miles miles northeast of San Diego, California
San Diego, California
San Diego is the eighth-largest city in the United States and second-largest city in California. The city is located on the coast of the Pacific Ocean in Southern California, immediately adjacent to the Mexican border. The birthplace of California, San Diego is known for its mild year-round...
and 100 miles miles southeast of Los Angeles
Los Angeles, California
Los Angeles , with a population at the 2010 United States Census of 3,792,621, is the most populous city in California, USA and the second most populous in the United States, after New York City. It has an area of , and is located in Southern California...
.
The lake covers approximately 1140 acres (461.3 ha) and holds 55000 acre.ft of water when full (lowered in 1978 from its original capacity of 203581 acre.ft out of earthquake concerns), in addition to groundwater
Groundwater
Groundwater is water located beneath the ground surface in soil pore spaces and in the fractures of rock formations. A unit of rock or an unconsolidated deposit is called an aquifer when it can yield a usable quantity of water. The depth at which soil pore spaces or fractures and voids in rock...
stored in its local basin. It drains an area of 207 square miles (536.1 km²) square miles at the source of the San Luis Rey River
San Luis Rey River
The San Luis Rey River is a river in northern San Diego County, California. The river's headwaters are in the Cleveland National Forest near Palomar Mountain. The river drains into the Pacific Ocean on the northern end of the city of Oceanside. The river is over long and drains...
.
The lake was constructed in 1923 with the building of Henshaw Dam, an earth dam 123 feet (37.5 m) tall and 650 feet (198.1 m) long. It is owned by the Vista Irrigation District and used primarily for agricultural irrigation.