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.

Get local stories you won't find anywhere else right to your inbox.
Sign up here

Just Posted

Provincial COVID-19 data can now be used for B.C. to prepare for a second wave

In the past week, B.C. has seen a slight spike in daily test-positive case counts

Abbotsford Hospice Society holds community scavenger hunt

Road to Gratitude event takes place on Sunday, July 19 by the carload

New book celebrates people and events that shaped Abbotsford

Pre-sales launched for Abbotsford – A Diverse Tapestry, to be released in fall

Child falls down Bridal Veil Falls near Chilliwack, crews on scene

An 11-year-old boy fell over the falls about 25 to 30 feet and has suffered a head injury

Once-in-a-lifetime comet photographed soaring over Abbotsford

Photographer Randy Small captures Comet NEOWISE in early-morning sky

QUIZ: Are you ready for a summer road trip?

How much do you really know about roads, motor vehicles and car culture? Take this quiz to find out.

Genetic detectives begin work to trace spread of COVID-19 in Canada

The kinds of genetic technology being used for this project did not exist when SARS hit Canada in 2003

Woman sexually assaulted, robbed near Surrey SkyTrain station: RCMP

Police say the incident happened July 10, just after 11 p.m. near King George SkyTrain station

B.C. Ferries increasing passenger capacity after COVID-19 restrictions

Transport Canada 50-per-cent limit being phased out, no current plans to provide masks

Four-vehicle collision snarls eastbound highway traffic in Fraser Valley

Collision west of Lickman Road on Highway 1 includes three vehicles plus motorcycle

Amber Alert for two Quebec girls cancelled after bodies found

Romy Carpentier, 6, Norah Carpentier, 11, and their father, Martin Carpentier, missing since Wednesday

Bringing support to Indigenous students and communities, while fulfilling a dream

Mitacs is a nonprofit organization that operates research and training programs

B.C. man prepares to be first to receive double-hand transplant in Canada

After the surgery, transplant patients face a long recovery

Grocers appear before MPs to explain decision to cut pandemic pay

Executives from three of Canada’s largest grocery chains have defended their decision to end temporary wage increases

Most Read