Binnie provided overall project management, preliminary and detailed design, tendering, contract administration and field inspection services for an ultimate sanitary sewer to service the Campbell Heights Industrial NCP Area located in southeast Surrey, BC. The project was designed in three phases with Phase 1 being approximately 3,800 metres of 450 mm and 550 mm HDPE twin pressure sewer, Phase 2 was approximately 2,600 metres of 375 mm – 750 mm PVC gravity sewer and Phase 3 was approximately 2,200 metres of 400 mm HDPE force main. The design also included the crossing of the Serpentine River by attaching the twin pressure sewer mains to the existing bridge, the underground crossing of the CPR mainline and the tie-in to the Metro Vancouver trunk sewer.
Construction of Phases 1 and 2 began in early 2009. The pressure system was constructed entirely within the existing roadways of 184 Street and 40 Avenue which necessitated major road closures and detours that still maintained local access to homes, farms, and businesses. Both roads were completely repaved after the work was completed.
Phase 2, the gravity section, was mainly constructed through a former Provincial Nursery site that was mined for gravel deposits and prepared for future industrial development by the Ministry of Transportation and the City. The sewer was designed to follow the proposed future road network and in some cases, the sewer was in excess of 8 metres deep.
