Location: Halifax, Nova Scotia

Client: Halifax Harbour Bridges

Project Budget: N/A

The suspended structure of the Macdonald Bridge was replaced over a three year period from 2015 to 2018.  The project included replacing the road deck, floor beams, stiffening trusses, suspender ropes and all electrical and mechanical systems.

M&R Engineering led the electrical and mechanical design team through schematic design, design development, and construction documents stages.  We also developed construction sequence documents for all the new electrical systems to be installed in concert with the structural elements of the re-construction, as the bridge is re-built in 46 segments from Dartmouth to Halifax. 

Key Facts: 

• Originally opened April 2nd, 1955 and connects Halifax to Dartmouth.

• Bridge Deck spans 1.3 kilometres and rises 54 metres above Halifax harbour at mid-span.

• 46 separate deck segments to be replaced over 18 months in concert with removal of existing road deck and the installation of new electrical and mechanical systems.

• Systems removed and re-installed new include; road deck lighting, structure highlighting, navigation lighting, traffic control systems, power distribution (including standby emergency power), emergency phone system, maintenance air and water utilities.