The dam was started in 1971, with the original construction being completed in 1978 at a height of 92.5 meters.

[1] In 1984, to meet the country's increased water demands, work to raise the dam to a height of 106 meters was begun, a project that was completed in 1988.

The main purpose of the dam is to store winter rains and treated wastewater from Amman and Zarqa treated in the As Samra plant for irrigation in the Jordan Valley.

The dam irrigates about 17,000 hectares and supports the livelihood of 120,000 people.

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