Skip to main content

Quebec to build new Mercier Bridge for Montreal city

The Canadian province of Quebec plans to build a US$219 million bridge across the St Lawrence River alongside the existing Mercier Bridge in the city of Montreal. Provincial government cabinet ministers Pierre Moreau and Geoff Kelley confirmed that a new bridge is forthcoming, but gave schedule for procurement or construction start, according to local media. However, Moreau said the work will begin probably before the new Champlain Bridge is finished at the start of 2019. Construction of the new Champlain B
May 12, 2017 Read time: 3 mins
The Canadian province of Quebec plans to build a US$219 million bridge across the St Lawrence River alongside the existing Mercier Bridge in the city of Montreal.


Provincial government cabinet ministers Pierre Moreau and Geoff Kelley confirmed that a new bridge is forthcoming, but gave schedule for procurement or construction start, according to local media. However, Moreau said the work will begin probably before the new Champlain Bridge is finished at the start of 2019.

Construction of the new Champlain Bridge began in June 2015, with opening scheduled for December 2018.

The aging Mercier bridge has suffered major repairs since 2013.

"The bridge is safe, but it will require until it's replacement $100 million of upkeep work. It's obvious we have to do something else than just upkeep the bridge," Moreau reportedly said.

The initial bridge, just under 1km long, was opened in 1934 and then twinned by construction of a second span adjacent in 1963. It crosses the St. Lawrence River and accompanying Seaway canals on the western side of the Island of Montreal to connect the Montreal borough of LaSalle with the Mohawk reserve of Kahnawake and the city suburb of Châteauguay on the south shore of the Saint Lawrence River.

The bridge is named after former premier of Quebec province, Honoré Mercier. An estimated 30 million vehicles use the bridge annually.

Last month, the 2880 Jacques Cartier and Champlain Bridges Incorporated (JCCBI), the federal Canadian agency that oversees several major road infrastructure assets in the city including the Mercier Bridge, said that tearing down the old steel truss cantilever Champlain Bridge could cost around US$300 million.

Also, until the nearby new Champlain Bridge is finished, it will cost US$93 million annually to maintain the old one, according to JCCBI. Dismantling of the structure that opened in 1962 will start in 2019 at the earliest and could take up to four years.

3260 World Highways reported in 2015 that the Canadian government had awarded the multi-billion-dollar contract for the Champlain Bridge to a consortium led by SNC-Lavalin under a 35-year public-private partnership. The consortium called Signature on the Saint-Lawrence Group includes Spanish firms 4761 Dragados Canada and 917 ACS Infrastructures and the US firm 2758 Flatiron Construction. Other members are MMM Group, T.Y. Lin International, International Bridge Technologies Canada and 981 Hochtief PPP Solutions.

Related Content

  • Collaborative approach is delivering the Queensferry Crossing
    March 28, 2017
    The Queensferry Crossing forms the centrepiece of a major upgrade to the cross-Forth transport corridor in the east of Scotland. It will be the longest three-tower, cable-stayed bridge in the world and represents a Scottish Government capital investment of more than €1.5 billion. The 2.7km Queensferry Crossing is alongside the Forth Road Bridge and will carry the M90 motorway across the Firth of Forth between Lothian, at South Queensferry, and Fife, at North Queensferry. Each of the three towers are 207m
  • Major bridge widening project going to plan
    April 11, 2012
    When built it was determined that a vital US road/rail bridge would always be widened. Work on that huge project is going to plan as Patrick Smith reports One of the biggest bridge widening projects in the world is being carried out under an ambitious development programme. At US$1.2 billion, the seven-year scheme to widen the Huey P. Long Bridge in the US state of Louisiana is also the largest of 16 projects planned under the state's TIMED (Transportation Infrastructure Model for Economic Development)
  • VIDEO: How many Caterpillars does it take to demolish a bridge in Canada?
    August 12, 2015
    At least nine, all in a row, according to a recent video shot in a town close to Montreal in the eastern province of Quebec.

    It was feeding time last month for a clutch of 178 Caterpillar’s hydraulic 350 and 336D excavators as they nibbled, pounded and munched their way through the redundant road bridge in Vaudreuil.

    The Avenue St-Charles overpass was surplus to requirements after a multi-million dollar interchange revamp was completed that included building a wider bridge next to the old one.
  • Formwork developments in bridge construction
    February 23, 2012
    Major infrastructure projects worldwide are relying on innovative formwork solutions for speed and safety as Patrick Smith reports. The 970m long cable-stayed Golden Ears Bridge crossing the Fraser River in Vancouver, Canada, is the core element of a six-lane, highway project near the Canadian west coast.