As part of the Wastewater Treatment Project, the McLoughlin Point Wastewater Treatment Plant included construction of a cross-harbour undersea tunnel from Ogden Point to McLoughlin Point.
This cross-harbour undersea pipe, or forcemain, links Ogden Point to McLoughlin Point. The undersea forcemain will convey wastewater from Oak Bay, and areas in Saanich and Victoria via the Clover Point Pump Station and Clover Forcemain to the McLoughlin Point Wastewater Treatment Plant.
The tunnel was drilled using a process called horizontal directional drilling and began in July 2017 and was completed in April 2018, ahead of schedule. There were two drill locations, one at McLoughlin Point, and the second at Ogden Point near the James Bay Anglers Boat Ramp.