Construction
Roman emperor Augustus has the 33-km- (20.3-mi-) long Aqua Alsietina aqueduct built underground to Trastevere. It carries only 15,800,000 L (4,200,000 gal) of water a day, making it the smallest of the 11 aqueducts that eventually supply Rome in Antiquity. Its water is not drinkable, however, for it was built to supply a 360-m (1181-ft) by 540-m (1800-ft) artificial lake designed for mock sea battles to amuse the Romans. See also 19 bce Construction; 38 ce Construction.




