Construction of Storm Water Networks with RC/GRP pipes and precast concrete box channels including trench works, supply & laying of pipes and culverts, re-asphalting, traffic detours, thrust boring works and relocation of existing utilities at Malqa & Hittin Districts in Riyadh City. Project scope includes more than 84 km of network up to diameter 1200 mm, over 41,000 m3 reinforced box culvert, 1,500 meters thrustboring works and related earthworks and asphalting activities.