Alto rail environmental concerns raised as April 24 consultation deadline approaches
A regional conservation group is raising concerns about the environmental impact of the proposed Alto high-speed rail project, warning it could disrupt one of eastern North America’s most significant wildlife corridors.
The Frontenac Arch Biosphere Network has submitted a technical brief as part of the federal consultation process, highlighting potential risks to ecosystems within the Frontenac Arch region, which overlaps parts of eastern Ontario, including Rideau Lakes and surrounding municipalities within Alto’s study corridor.
The group is urging residents, landowners and municipalities to take part in the consultation process before it closes April 24.
According to the biosphere network, the Frontenac Arch forms part of the larger Algonquin to Adirondacks corridor, a key north-to-south route that supports wildlife movement between Ontario and New York State. The organization says the region supports significant biodiversity, including 54 species at risk.
In its submission, the biosphere network raises concerns about potential habitat fragmentation, impacts on wetlands and forests, and long-term effects on conservation efforts built over decades.
“Our scientists and students study how connected ecosystems sustain species and communities and support climate resilience,” said Dr. Shelley Arnott of the Queen’s University Biological Station, located near Lake Opinicon in South Frontenac Township. “We stand with our regional partners in urging that any major development decisions be guided by sound science.”
The biosphere network also notes that only a portion of the region is formally protected and says maintaining connected landscapes is critical to wildlife movement and ecological health.
While raising concerns, the organization acknowledges that major infrastructure projects can contribute to reducing greenhouse gas emissions, but argues that those gains should not come at the expense of sensitive ecosystems.
The high-speed rail initiative, led by Alto on behalf of the federal government, is intended to connect major centres between Toronto and Québec City with faster passenger rail service.
In a written response to questions, Transport Canada said the project is being developed in stages, with a refined corridor and proposed station locations expected to be submitted to the minister in 2026. A final investment decision is anticipated in 2029.
“The federal government is making this historic investment in the HSR initiative as it will play a critical role in supporting economic growth, reducing greenhouse gas emissions, and improving quality of life,” the department said in its response.
Transport Canada said the process includes ongoing public engagement and Indigenous consultation, and that feedback received to date is being considered as plans are refined. The consultation process has drawn input from municipalities, landowners and environmental groups across eastern Ontario.
The proposed network includes seven confirmed cities: Toronto, Peterborough, Ottawa, Laval, Montréal, Trois-Rivières and Québec City. Final alignment details are still being developed and may change as consultation continues.
The biosphere network is calling for a comprehensive environmental assessment that considers cumulative impacts across the broader landscape, particularly in areas where ecological connectivity remains intact.
The region also includes lands within Algonquin and Kanien’kehá:ka territories, where consultation obligations form part of the federal review process.
Residents can submit feedback directly through Alto’s consultation portal before the April 24 deadline. The outcome of the consultation will help shape the next phase of planning as the project moves toward a refined corridor proposal later this year.
For more stories on the Alto rail, visit Hot topics: Alto.
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