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First deck segment replaced successfully on "The Big Lift" project, Canada

Youtube video by Halifax Harbour Bridges

​The replacement of the first deck segment of the Angus L. Macdonald Bridge in Halifax, Canada, was a success this past weekend.

​"The Big Lift" as it is called, involves the replacement of the roadway deck, floor beams, stiffening trusses and suspender ropes. Essentially, it is a complete replacement of the entire bridge superstructure, including the hangers.

COWI's North American subsidiary, Buckland & Taylor, provided the final design of the new bridge structure, erection engineering, and design of the major erection equipment. This includes the yellow gantry that was used for lowering and lifting of deck segments, and the temporary connection between the existing and new decks.

Buckland & Taylor is acting as the Owner's engineer, and is providing construction services and various assistance to the contractor (American Bridge Canada Company).

Involvement since 2010

Since 2001, Buckland & Taylor has been involved in the rehabilitation work on the Angus L. Macdonald Bridge. The "Old Bridge," as it is locally known, is a lifeline of the metropolitan city of Halifax, providing vehicles, cyclists and pedestrians with access to the downtown core since 1955.

Buckland & Taylor not only designed the final bridge, but also developed the erection sequence for the contractor to follow during erection. The team's approach addressed the major challenges associated with extending the life of the bridge, and in doing so will improve this vital transportation route for the local community.

Second time in history

The replacement happens only for the second time in history. The first time was in 2001 on the Lions' Gate Bridge in Vancouver, Canada, where Buckland & Taylor carried out the final bridge design and acted as the Owner's engineer during construction, reviewing the contractor's erection scheme. The Lions' Gate Bridge is considered the "sister" bridge to the one in Halifax.


The new deck apporaches the existing. 

LAST UPDATED: 18.09.2017