Land Subsidence
Land Subsidence
USGS scientists are studying the causes and impacts of land subsidence to help protect Bay-Delta communities from flooding and ensure the integrity of water-conveyance systems in California’s Central Valley. Subsidence weakens levees and threatens crucial aqueducts that supply water to more than 25 million California residents and vast farmlands.
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Delta Island Subsidence
USGS scientists have been studying land subsidence in California for more than 60 years.
San Joaquin Valley Subsidence
USGS is studying land subsidence in relation to water-project canals in California’s Central Valley.