Drinking water supply and sanitation in the United States in White Pine County, north of the city straddling the Utah border and other areas, pumping it to Las Vegas through a US$2 billion pipeline. Phoenix draws about half of its drinking water from the Salt River–Verde River watershed, and about 40% from the Colorado River further downstream at Lake Havasu through the Central Arizona Project. Los Angeles obtains about half of its drinking water from the Owens River and Mono Lake through the Los Angeles Aqueduct, with additional supplies from Lake Havasu through the Colorado River Aqueduct. San Diego imports nearly 90 percent of its water from other areas,
London Bridge (Lake Havasu City) shore of Lake Havasu. The bridge was completed in 1971 (along with a canal), and links an island in the Colorado River with the main part of Lake Havasu City. The 1831 London Bridge was the last project of engineer John Rennie and was completed by his son, John Rennie the Younger. By 1962, the bridge was not sound enough to support the increased load of modern traffic, and it was sold by the City of London. The purchaser, Robert P. McCulloch, the chairman of McCulloch Oil Corporation, was the founder of Lake Havasu City, his retirement real estate development