List of aqueducts in the city of Rome

This is a list of ancient Roman aqueducts in the city of Rome.

Estimates of total water supplied in a day by all aqueducts vary from 520,000 m3 (140,000,000 US gal) to 1,127,220 m3 (297,780,000 US gal)[1]: 156-7 [2]: 347 , mostly sourced from the Aniene river and the Apennine Mountains[citation needed], serving a million citizens[citation needed].

Most of our information about Roman aqueducts come from statistics compiled in the late 1st century AD by Sextus Julius Frontinus, the Curator Aquarum[1]: 152 .

Modern engineers have questioned the validity of these figures and measured Anio Novus limestone deposits to estimate the average wetted perimeter and surface roughness corresponding to only 2/3 of the flow figure given below.

[3] Media related to Ancient Roman aqueducts in Rome at Wikimedia Commons