Benghazi Water Reservoir project undertaken by ENKA included the civil engineering works and supply, delivery and installation of the associated electrical and mechanical equipment of circular earthfill holding reservoir with a capacity of 4,7 million m³. The reservoir comprises an embankment with 9 m height and 1 km of crest diameter, inlet and outlet works and a spillway. The circular earthfill embankment incorporates an internal sand/gravel system drainage system and has internal slopes lined with a synthetic geomembrane of 150,000 m².

The inlet works, outlet works and spillway are constructed of reinforced concrete. Water is discharged into the reservoir through 3 submerged discharge valves, each with a diameter of 2,000 mm, and a weight of 30 tons, supplied and installed by ENKA. Manufacturing and installation of polyurethane coated buried steel pipework, with diameters varying between 2,000 and 4,000 mm lined at site by cement mortar and cathodically protected and installation of 8 owner-supplied large valves are included. The project also includes installation of a prestressed cylindrical concrete by-pass pipeline of 4 m diameter and 1,800 m long.