Jordan Journal of Civil Engineering

Siltation of Wadi Al-Arab Reservoir Using GIS Techniques


Amjed Shatnawi; Abdullah Diabat;


Siltation of Wadi Al-Arab dam in the northern part of Jordan was investigated. Wadi Al-Arab dam was constructed 29 years ago (1987). The designed total reservoir storage capacity of this dam was scheduled to be 20 million cubic meters. The actual storage capacity of the reservoir was calculated using echo-sounding traverses. The data obtained was used in special computer software to construct the bathymetric map of the reservoir and consequently calculate the existing storage volume. The obtained results indicated that the reservoir storage capacity was reduced at an average annual rate of 0.33 MCM. Bottom sediments of the reservoir were collected using van-veen grab and then analyzed. Sand, silt and clay were the main sediment components.