Girish Mahajan (Editor)

Clifton Court Forebay

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Type
  
Reservoir

Catchment area
  
6 square miles (16 km)

Area
  
10 km²

Mean depth
  
2 m

Inflow source
  
Old River

Primary inflows
  
Old River

Basin countries
  
United States

Surface elevation
  
90 cm

Length
  
4 km

Clifton Court Forebay httpsiytimgcomviXLIe6AJIFl8hqdefaultjpg

Location
  
San Joaquin River Delta Contra Costa County, California

Primary outflows
  
California Aqueduct Delta–Mendota Canal

Similar
  
Sacramento–San Joaquin River Delta, Sonoma Creek, San Francisco Bay Natio, Oyster Bay Regional Shoreline, Big Break Regional Shoreline

Striped bass fishing the clifton court forebay ca


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.

Contents

Map of Clifton Court Forebay, California, USA

Clifton court forebay


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 shutdown 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.

A documentary about the decline of the United States' infrastructure, The Crumbling of America, was commissioned by the U.S. A&E network in the late 2000s. The documentary is typically shown on the History television channel in the United States, although other educational broadcasters globally have shown it. It features the Clifton Court Forebay as a "strategic piece of California freshwater infrastructure" subject to shutdown for up to two years if struck by an earthquake of magnitude 7.5 or greater.

  • Reservoir map
  • History of the California Aqueduct system
  • References

    Clifton Court Forebay Wikipedia