The dams are built in co-operation with Yüksel Insaat Saudi Co. Ltd. The dams purpose is to maintain the groundwater level and for flood protection. The reservoir level will be filled when the seldom rain occurs and be emptied gradually to the ground. Central asphalt cores are very flexible and especially suited for such unfavorable stress situations.
The asphalt works are performed with employees from4-5 countries and supervised by employees from Kolo Veidekke
Project description
The project consists of one major 100 high dam and one 30 m high saddle dam with the spillway in-between the two. The main dam is built on top of a concrete gallery while the saddle dam is built on a smaller concrete plinth. Emphasis was put on establishing a very flexible asphalt mix even with the fairly hard bitumen that was available. The flexible properties were confirmed in the triaxial tests that was part of the mix design.
A modern asphalt batch plant and laboratory was established on site for production and quality control of the 80,000 tons of asphalt required for the two dams.
Dimensions
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Main dam
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Saddle dam
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Dam height
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102 m
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30 m
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Length of crest
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575 m
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437 m
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Level top dam
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251 m
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251 m
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Up-and downstream slope
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1: 2.15/1: 2.05
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1: 2.15/1: 2.05
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Dam volume
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5.35 mill m3
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0.65 mill m3
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Asphalt volume
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23.800 m3
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3.700 m3
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