ENKA started the Oued Athmania Dam project in August 2002 and completed in April 2007. The contract included civil engineering works as well as the design, supply, erection, and start-up of the hydraulic, electric and control equipment. The dam reservoir is located at 30 km northwest of the Constantine Province, in the Mila City in East Algeria and was a part of the master project named “Transfer of Beni Haroun”. It aimed to transfer the water collected from Beni Haroun and Bou Siaba towards the six cities of Batna, Kenchela, Mila, Oum El Bouaghi, Constantine and Jijel, where the demand for drinking water and agricultural irrigation water had increased. The dam has a height of 44 m, a length of 630 m, and a reservoir capacity of 33.6 million m3. It has a combined concrete tunnel and 313 m long, derivation gallery. The derivation gallery is able to drain the water with a maximum flow rate of 60 m3/second. The pipeline capacity is 4 m3/second for the drinking water and 2.5 m3/second for the irrigation water.
The Water Treatment Plant project was awarded to ENKA and Degremont (France) consortium in December 2004. ENKA’s scope of construction works included detail design, material supply, civil and structural construction as well as the leakage tests of the structures. The design, supply, erection and start-up of the raw water supply pipeline were also included in ENKA’s scope of work. The early water supply phase of the construction began in February 2005 and was completed by December 2006. The final phase was completed in September 2007 as scheduled. The plant has a capacity of 270 thousand m3 of treated water per day.
