The Oriental Institute, University of Chicago

Megiddo—The 9th century B.C. water tunnel is part of the latest and most technologically advanced of Megiddo’s three water systems. To create this 200 foot long passageway, two teams of workers, one starting at the bottom of a 115 foot deep shaft behind the city walls, and one starting at the base of the hill by the spring, dug toward one another through the hill. By descending the shaft and walking through this underground tunnel, the residents of the city could reach the spring. Thus, during times of siege, water could be drawn without going outside the city walls.