Jerusalem Water Channel

The Jerusalem Water Channel is a central drainage channel of Second Temple Jerusalem, now an archaeological site in Jerusalem. It is a large drainage tunnel or sewer that runs down the Tyropoeon Valley and once drained runoff and waste water from the city of Jerusalem. The excavators, Ronny Reich and Eli Shukron, date it to the later part of the Second Temple period. According to Leen Ritmeyer, the drain is mainly of Hasmonean age, with the exception of a bypass section near the southeast corner of the Temple Mount, which is Herodian.