Roman aqueduct
Rome's first aqueduct was built in 312 BC, and supplied a water fountain at the city's cattle market. By the 3rd century AD, the city had eleven aqueducts, sustaining a population of over a million in a water-extravagant economy; most of the water supplied the city's many public baths. Cities and towns throughout the Roman Empire emulated this model, and funded aqueducts as objects of public interest and civic pride, "an expensive yet necessary luxury to which all could, and did, aspire".
Frederick Eaton
In 1906, the Board of Water Commissioners created the Bureau of Los Angeles Aqueduct. They appointed William Mulholland as chief engineer, who planned and developed the Los Angeles Aqueduct. The aqueduct was completed in 1913. The Aqueduct brought plentiful water to Los Angeles, which supplied its explosive population growth. It also diverted the Owens River and its tributaries, taking water away from the Owens Valley, eventually disabling the farms and communities there.