The Parliamentary Budget Office (PBO) released a report on October 1, 2026 estimating the construction cost of the Alto high-speed rail project between Toronto and Quebec City at $75 billion to $113 billion. This estimate exceeds previous official costs of $60 billion to $90 billion. The project, managed by the Crown corporation Alto, also includes a possible stop in Kingston, Ontario.
Cost Drivers and International Comparisons
The PBO report identifies tunnels and elevated structures as primary factors driving expenses. Each additional kilometre of tunnel adds approximately $169 million, while an extra kilometre of elevated structure raises costs by about $153 million. Including Kingston as a
stop increases cost uncertainty due to easier construction geography offset by higher regional population density and ecological sensitivity. The analysis draws on international parallels, noting that high costs in U.S. and U.K. rail projects primarily result from land acquisition, permitting challenges, litigation, design changes, and project management issues.
Economic and Employment Impacts
Construction is slated to start in 2030. The PBO projects that the Ottawa-Montreal segment will raise Canada’s real GDP by around $1.8 billion in 2029, growing to $2 billion by 2033. Employment related to the project is expected to increase from approximately 4,300 to 9,000 jobs over the construction period.
Political Reactions to Project Estimates
Transport Minister
Steve MacKinnon supports the Alto project, citing its potential to “build a strong economy and create new opportunities for Canadians.” Conversely, Conservative transport critic Dan Albas criticized it as prone to delays, budget overruns, and increased taxpayer burdens, stating it “will come late, go over budget and leave taxpayers stuck with the bill, if it even gets built at all.” The Bloc Québécois and residents along the proposed route in eastern Ontario have expressed concerns regarding land expropriation and the adequacy of consultation processes.
Legislative Context and Risk Mitigation
The PBO notes that Canadian legislation such as Bill C-5, the One Canadian Economy Act, is
intended to streamline project approvals to curb cost overruns common in North American rail projects. The report states, “The robustness of these provisions before Canadian courts, as well as their inherent effectiveness in targeting sources of cost escalation, will be a key success factor in mitigating significant project risks of the baseline estimate.” The report also emphasizes the inherent uncertainty in large-scale infrastructure projects of this magnitude.
