Wastewater Networks : * P.V.C. pipelines of 200 : 300 mm dia. and 4.4 km length. Potable Water Networks : * P.V.C. pipelines of 110 mm dia. & 4.9 km length and 9 bar working pressur . * P.V.C. pipelines of 160 mm dia. & 4 km length and 9 bar working pressur . Roads Works : * Roads and walk ways around the green zones . Electrical networks : * Medium and low voltage cables of 54.5 km long & 519 lighting posts and 23 transformer cabenets.