"The Ontario government has completed excavation of the tunnel launch shaft for the Yonge North Subway Extension, marking a significant construction milestone in one of the province's largest public transit infrastructure projects. The extension is expected to improve transportation across the Greater Toronto Area (GTA), create thousands of jobs during construction, and expand access to rapid transit for growing communities in York Region..." (Mitchell, 2026)
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Mitchell, Sophie. (2026, July 24th) Major Construction Advances on Ontario's Yonge North Subway Extension as Tunnel Launch Shaft Completed. Available from Wire Service Canada : https://www.wireservice.ca/major-construction-advances-on-ontarios-yonge-north-subway-extension-as-tunnel-launch-shaft-completed/