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Updated Bridge Cost Estimates Released

posted May 3, 2013, 10:49 AM by John Verbaas
In preparation for the May 13th Public Consultation Group meeting, the study team has been posting a number of study documents on their website (  One of the more interesting studies are the cost estimates for each of the 3 bridges under consideration.  

The costs are estimated to be between 1.1B$ (Corridor 5) and 1.4B$ (Corridor's 6 and 7).  The bridge structure itself represents about 50% of the total costs, the roadway modifications in Ontario and Quebec another 20% with the final 30% related to design, engineering, project management, and contingencies.

Other options such as a tunnel under downtown Ottawa to link the 417 to the Macdonald-Cartier bridge were rejected several years ago partially on the grounds of  being too expensive to warrant further investigation.  Meanwhile the City of Ottawa has signed a contract for a downtown transit tunnel giving us some tunnel cost data points indicating what a tunnel excavation in downtown Ottawa might cost.  It is certainly nowhere near the 1.1B$ to 1.4B$ now being quoted for the interprovincial bridge project!