The Metro Vancouver government is in the first stages of boring a kilometre-long water supply tunnel under the Fraser River at Port Mann, at a depth of 400 metres.  Metro’s website has a partly animated video on the project, but I don’t see a cost estimate on the site.  The Vancouver Sun put the cost of the project at $230 million in 2010.  This is slightly more than the official cost figure for the Pitt River Bridge project.  Current news media interest in the tunnel project appears to be zero.

The current water supply lines across both the Fraser and the Burrard Inlet are said to be at risk from “earthquakes and erosion.”  A new Burrard Inlet tunnel and supply line will come later.  The prime contract for the Port Mann work was awarded in spring 2011 to an Ontario-based joint venture.  They are set to collect $167.3 million.  The tunnel and supply line are to be completed in 2014.