How long was ancient Romes aqueduct system?
Supossing that we’re talking about the system located in Rome itself and not the many other structures built over the territories that comprised the Roman Empire: “The aqueducts were built from a combination of stone, brick and the special volcanic cement pozzuolana. While their visible remains leave a definite impression, the great bulk of the Roman waterway system ran below ground. Channels bored through rock, or dug below the surface carried water where it was convenient and possible. Of the approximately 260 MILES in the aqueduct system, only 30 miles consisted of the visible, mammoth arched structures. Ancient Rome had eleven major aqueducts, built between 312 B.C. (AquaAppia) and 226 A.D. (Aqua Alexandrina); the longest (Anio Novus) was 59 miles long.