* Gravity networks V.C pipelines of 15" : 32" & 6.48 km length. UPVC pipelines of 6" : 12" & 48.2 km length. * Pressurized pipelines from HDPE dia 200:500 and length 16 km and 6 bar working pressure . * Pump stations : 5 no. P.S discharge from 32:105 L/S *crossing open cut excavation from D.I of dia 800 mm and length 12 m. * Fence of Wastewater disposal treatment plant of Akwa AL-Hessa