Second phase of Hwy 104 twinning now complete

Updates

Feb 27

The second phase of Hwy. 104 twinning in Antigonish, N.S., was completed recently, with eight kilometres of new four-lane highway.

The $86-million project includes two roundabouts, three underpasses and two 300-metre-long bridges spanning the South River in northeastern Nova Scotia. CBCL Limited was the design engineer of the project.

The twinning project began with the construction of the two South River crossings — steel box girder designs, each on three piers. General contractor was Nova Construction Co. Ltd. of Antigonish and Harbourside Engineering was the designer.

Read the Full Construct Connect Article

Learn more about Harbourside’s Role in the Twinning of Highway 104

Projects

Highway 104 Twinning (Part 3)

The Highway 104 Twinning Project was a Design, Build, Finance, Operate, and Maintain (DBFOM) project, including twinning the 100 series highway between Sutherlands River and Antigonish, Nova Scotia, with new interchanges and bridges. Working as part of the Dexter Nova Alliance (DNA), Harbourside Engineering Group completed the design of bridge structures, and was awarded the 2025 Lieutenant Governor's Award for Excellence in Engineering for this project.

Highway 104 Twinning (Part 2)

As a part of a major initiative by the NS Department of Transportation and Infrastructure Renewal to twin Highway 104 through the town of Antigonish, Nova Scotia, Harbourside Engineering Consultants received the contract to design six major structures along the new alignment. Harbourside provided preliminary designs of various options for each structure and final designs with tender-ready documents. This monumental task was undertaken by various groups, working in conjunction as the Dexter Nova Alliance.

Highway 104 Twinning (Part 1)

The twinning of Highway 104 comprised of various projects for the roadway's modernization, as twinned highways are safer and more efficient than their single-lane counterparts. Harbourside Engineering Consultants completed the design of the twin overpass structures at the Trunk 7 intersection near St. Francis Xavier University, through Antigonish, Nova Scotia, and received the 2025 Lieutenant Governor’s Award for Excellence in Engineering resulting from work on this project.

Harbourside Engineering ConsultantsHarbourside Geotechnical ConsultantsHarbourside Transportation ConsultantsHECHTCHGCProject UpdateNova ScotiaDartmouth Office

Christian Allaire

Second phase of Hwy 104 twinning now complete

The second phase of Hwy. 104 twinning in Antigonish, N.S., was completed recently, with eight kilometres of new four-lane highway.

Learn more about Harbourside’s Role in the Twinning of Highway 104

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