Technology
The ancient Romans also had a complex system of aqueducts, which were used to transport water across long distances. The first Roman aqueduct was built in 312 BCE. The eleventh and final ancient Roman aqueduct was built in 226 CE. Put together, the Roman aqueducts extended over 450 kilometers, but less than seventy kilometers of this was above ground and supported by arches.
Los Angeles Aqueduct
The aqueduct project began in 1905 when the voters of Los Angeles approved a bond for the 'purchase of lands and water and the inauguration of work on the aqueduct'. On June 12, 1907 a second bond was passed with a budget of to fund construction.