Rehabilitation of the Sheikh Radwan Stormwater Pressure Pipeline

Rehabilitation of the stormwater drainage from the Sheikh Radwan pond in Gaza City for the Arab and International Organization to Construct in Palestine (AIOCP), funded by the Higher Committee for Reconstruction in Palestine – Jordan and coordinated with the Palestinian Water Authority and Gaza Municipality. MACC laid two parallel 630 mm HDPE pressure lines from the existing 900 mm GRP main and excavated a drainage channel to carry the pond's water to the sea.

Scope of work

• Supply, welding and laying of two parallel 630 mm HDPE PN12.5 pressure lines, 350 m each, including excavation, backfilling and tightness testing
• Connection between the existing 900 mm GRP line and the two 630 mm lines through a reinforced-concrete connection box (minimum clear size 1.3 × 1.3 m) with puddle flanges
• Protection of existing pipelines during the works, including the existing 315 mm line
• Reinforced-concrete outfall (B300), internal size 2.0 × 4.0 m, with inclined walls, necks, PVC waterstops and internal and external protective coatings
• Trench excavation for a surface drainage channel about 1,100 m long, at least 2 m deep and wide, graded to carry water to the shore
• Coordination of the entry of six truckloads of 630 mm HDPE pipe through the Kerem Shalom crossing