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

Students, volunteers plant 300 trees in White Rock park

City partnership to ‘mimic the natural growth’ of Ruth Johnson Park

Surrey moves to ban sleeping overnight in RVs, motorhomes on city streets

Proposal comes amid complaints about homeless people living in recreational vehicles

$50,000 reward for ‘extremely violent’ South Surrey murder suspect renewed

Offer for information on Brandon Teixeira to remain in effect through April, 2020

Surrey restaurant owner who pointed handgun at staff loses court appeal

Jawahar Singh Padda tried to get his 30-month sentenced reduced

South Surrey man allows smart meter installation ‘under duress’

BC Hydro says devices emit fraction of radio frequency from a cellphone

ELECTION 2019: It’s so close, it could come down to who turns out to vote

Black Press Media’s polling analyst on the origins of predictive seat modelling in Canada

Jack’s Devils beat Quinn’s Canucks 1-0 in NHL brother battle

New Jersey youngster scores first career goal against Vancouver

Two charged after owner’s wild ride through Kamloops in his stolen truck

Crystal Rae Dorrington, 37, and Derrick Ronald Pearson, 32, facing multiple charges

Kamloops Blazers blank Vancouver Giants

A loss on the road for G-men

Man found dead inside Richmond business, IHIT investigating

Police believe the incident was not random

Judge orders credit union’s bank records for Kelowna social worker facing theft allegations

The man is accused of negligence, breach of contract, fraud and a conspiracy with Interior Savings

Leaders pour it on with rallies, boosts for candidates as campaign reaches peak

The federal election campaign has reached a crescendo

Allegations of racism lead to ministry investigation at Vancouver private school

St. George’s School was contacted over what the school describes as ‘deeply offensive behaviour online’

Not a political question: Thunberg calls for climate action in Alberta

Edmonton police estimated the size of the crowd at about 4,000

Most Read