California Aqueduct

California Aqueduct, principal water-conveyance structure of the California State Water Project, U.S., and one of the largest aqueduct systems in the world. The California State Water Project, begun in 1960, is designed to transport water to arid southern California from sources in the wetter northern portion of the state. The California Aqueduct conveys water about 1,135 km (705 miles) across the state, yielding more than 2.5 billion litres (650 million gallons) of water a day. It serves...