Acre (Akko) Aqueduct
Underground water system. Acre - A conduit. The old city of Acre (Akko) required a steady flow of running water. In the earlier stage of the city, the adjacent Naaman (Belus) river supplied this flow, and was the symbol of the city as minted on the Greek coins.
However, when the population grew and the city moved to its present location, a design of an aqueduct was required. This water line was built on an aqueduct, bringing in the water in a straight line from the springs of Cabri, about 12KM away from the city.
The aqueduct supplied the water in several lines in the city, and one of them reached to vast underground cisterns the El-Jazar Mosque in the center of the old city.
(Israel Antiquities Authority)
Read More about Acre (Akko) Aqueduct