The George Massey tunnel is considered B.C.’s worst traffic congestion point, and unable to withstand a major earthquake. (Black Press Media file)

Bridge or tunnel: Metro Vancouver to decide on Massey crossing recommendation

Task force will send recommendation to province

Metro Vancouver residents could learn what a likely Massey tunnel replacement option will look like early Wednesday afternoon.

The George Massey Crossing Task Force will receive a report about six short-listed replacement options for the aging tunnel. The task force was started after the NDP scrapped the previous Liberal government’s 10-lane bridge proposal.

The report highlights the advantages and disadvantages of the six options:

  • New eight-lane immersed-tube tunnel with multi-use pathway
  • New six-lane immersed-tube tunnel plus use of the existing tunnel to provide two dedicated lanes for transit.
  • New eight-lane bridge with multi-use pathway.
  • New eight-lane deep-bored tunnel plus use of the existing tunnel for a multi-use pathway.
  • New six-lane bridge plus use of the existing tunnel to provide two dedicated lanes for transit.
  • New six-lane deep-bored tunnel plus use of the existing tunnel to provide two dedicated lanes for transit.

It notes the deep-bored tunnel options are “technically challenging and are assessed as high risk.” This option would risk sink holes appearing and require “removal of three million cubic meters of salt-contaminated soil during construction.” The cost is estimated at three times the cost of the immersed-tube tunnel and bridge options. The report points to the Alaskan Way Viaduct replacement tunnel project in Seattle, which finished late and overbudget after a boring machine, dubbed Berta, got stuck multiple times. The machine needed for the Massey project would be 20 metres wide, compared to 17.5 metres for the Seattle project.

The immersed-tube tunnel options are described as “moderately challenging,” with the most complex environmental assessment due to in-river and riverbank work. This option would require one kilometre of tunnel, a large staging area and removal of 1.5 million cubic meters of salt-contaminated soil. It’s estimated to cost the same as a bridge option, although costs are not yet known. The 10-lane bridge option was estimated to cost $3.5 billion.

The bridge options would require the least complex environmental assessment, the report notes, as it would be similar to the one already done for the 10-lane option. It would require around three kilometres of bridge and approaches, with abutments on land and foundations of at least 80 metres in depth.

The current tunnel, although expected to remain “serviceable” for 50 years, does not meet seismic requirements, the report said.

The task force is expected to come to a decision that will serve as its recommendation to Metro Vancouver mayors Wednesday afternoon, although it will not be binding.

READ MORE: Council wants Massey crossing project to include South Surrey interchanges

READ MORE: Unity needed among mayors on Massey Tunnel replacement, Delta mayor says


Like us on Facebook and follow us on Twitter.

Just Posted

White Rock pier-plank purchasers celebrated

Donors received a certificate Sunday marking their purchase of a pier plank

Delta police campaign shines a light relationship violence

Campaign comes after a Delta man was charged with assault with a weapon and uttering threats

White Rock looking at 3.9% tax increase

Budget discussions are to take place this week

Plans for new Surrey hospital to be updated Monday

News conference announced by Premier Horgan and health minister Adrian Dix

PHOTOS: White Rock Festival of Lights celebrated with a cheer

Hundreds of people gathered in the city Saturday for a Christmas event

VIDEO: SNL skewers Trudeau’s mockery of Trump in high school cafeteria sketch

The three world leaders won’t let Trump sit at the cool kids’ table

B.C. universities post $340 million worth of surpluses thanks to international student tuition

Students call for spending as international enrolment produces huge surpluses at many universities

Conservatives urge Morneau to deliver ‘urgent’ fall economic update

Morneau says the first thing the Liberals plan to do is bring in their promised tax cut for the middle class

INFOGRAPHIC: How much money did your local university or college make last year?

B.C. university and colleges posted a combined $340 million surplus in 2018/19

B.C. creates $8.5M organization to improve safety for health care workers

Group will bring together unions, province, health care organizations

Four men in hospital after early morning Vancouver stabbing

A large group of men was seen fighting in Yaletwon

Kovrig clings to humour as ‘two Michaels’ near one year in Chinese prison

Their detention is widely viewed as retaliation for Canada’s arrest of Chinese high-tech scion Meng Wanzhou

B.C. VIEWS: An engine that hums right along

First Nations are leading a new surge of investment in B.C.

Most Read