The Plant is undergoing a major Stage 5 expansion. As part of these improvements a new sewage outfall is being built to accommodate greater capacity, improve effluent dispersion in the river, and allow for continued operation after a seismic event. There will be a live webcast of the event available for those who are not able to attend in person.

The project includes:

  • Approximately 1,200m of 4.2m inside diameter tunnel at 40m below ground in soft ground conditions supported by 250mm-thick segmental concrete liner;
  • Three on-land shafts: one at 16m internal diameter and two at 7m internal diameter;
  • Approximately 240m of 2.5m diameter diffuser manifold pipe buried in the river bed complete with 24 diffuser ports, each with flexible duck-bill check valves;
  • In-river riser shaft, approximately 3.8 m diameter, to connect the deep tunnel to the diffuser manifold (temporary excavation support anticipated to utilize a combined king pile and sheet pile cofferdam).

Topics for the meeting include: Project overview, pre-qualification process, procurement process, insurance/bonding requirements, regulatory requirements/constraints, schedule

The contractor information session will be held at Metro Vancouver's head office, Second Floor Board Room, at 4330 Kingsway, Burnaby, British Columbia, Canada. Or, via live webcast at:

Refer to for updates and more information.

For questions and/or to register, contact:

Gary Mui, Buyer, Metro Vancouver