Jawa Dam, Ancient gravity dam in Mafraq Governorate, Jordan
The gravity dam stretches across Wadi Rajil, constructed with basalt stones and reinforced with clay, wood ash, and soil core.
Built before 3000 BCE during the Early Bronze Age, this structure represents the oldest known dam in the world.
The dam formed part of an extensive water management system that supported the development of an early settlement of 2,000 inhabitants.
The reservoir collected winter rainfall through a channel system, directing water into a rock-enclosed depression for agricultural and human consumption.
The original dam core measured 2 meters thick, later expanded to 7 meters with subsequent height increases of 1-2 meters.
GPS coordinates: 32.33500,37.00333
Latest update: March 6, 2025 21:25
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