Clifton Court Forebay facts for kids
Quick facts for kids Clifton Court Forebay |
|
|---|---|
 Clifton Court Forebay
Location in California
Clifton Court Forebay
Location in the United States
|
|
| Location | San Joaquin River Delta Contra Costa County, California |
| Coordinates | 37°49′48″N 121°33′24″W / 37.8299°N 121.5568°W |
| Type | Reservoir |
| Primary inflows | Old River |
| Primary outflows | California Aqueduct Delta–Mendota Canal |
| Catchment area | 6 square miles (16 km2) |
| Basin countries | United States |
| Max. length | 2.5 miles (4.0 km) |
| Max. width | 2 miles (3.2 km) |
| Surface area | 2,500 acres (1,000 ha) |
| Average depth | 10 m (33 ft) |
| Max. depth | 20 m (66 ft) |
| Water volume | 29,000 acre⋅ft (36 hm3) |
| Residence time | 4 months |
| Surface elevation | 3 feet (0.91 m) |
Clifton Court Forebay is a reservoir in the San Joaquin River Delta region of eastern Contra Costa County, California, 17 mi (27 km) southwest of Stockton. The estuary region the forebay is located in is only 1m to 3m above mean sea level.
History
The body of water was created in 1969 by inundating a 2,200-acre (890 ha) tract as part of the California State Water Project.
It serves as the intake point of the California Aqueduct for transport to Southern California, and feeds the Delta–Mendota Canal (a part of the Central Valley Project) to recharge San Joaquin Valley river systems.
Geological context
If a large enough earthquake happens near or at the Clifton Court Forebay, the California water system for irrigation and municipal use will be adversely affected. Several earthquakes have nearly shut down the Forebay. The 2014 South Napa earthquake and the 1989 Loma Prieta earthquake came very close to shutting down the Forebay intake system.
The Clifton Forebay is a wetland system that drained nearby small rivers into the Pacific Ocean. Only in recent times was its freshwater drainage functions turned into a gateway to water storage.
The Central Valley region that this forebay interfaces with is very gradually filling in the central valley with sediments. The region may be rebounding from recent run ins with glaciations that affected North America.
