The Aqua Augusta, which was also called the Aqua Alsietina,^[1] was an aqueduct supplying ancient Rome. Owing to severe drought, the Emperor Augustus built the Aqua Augusta in or around 33 BC^{[citation needed]} in order to supplement the Aqua Marcia, and then later the Aqua Claudia when required. However, the aqueduct was poorly designed and most of it collapsed in 27 BC.^{[citation needed]}

The aqueduct, perhaps via a branch, also fed the town of Feronia as mentioned in inscriptions found there.^[2]