Tunnels in Canada

27 tunnels in Canada, ranked by size. Data from Wikidata and Wikipedia.

1. Mount Macdonald Tunnel 15 km
2. Connaught Tunnel 8 km
3. Thornton Tunnel 3 km
4. Louis-Hippolyte Lafontaine Bridge-Tunnel 2 km
5. Wolfe’s Cove Tunnel 2 km
6. Brockville Tunnel 1 km
7. Bulldog Tunnel
8. Cassiar Tunnel
9. Dunsmuir Tunnel
10. George Massey Tunnel
11. Joseph-Samson Bridge–Tunnel
12. Kapoor Tunnel
13. Lonsdale Tunnel
14. Main Street Tunnel
15. Melocheville tunnel
16. Merritton Tunnel
17. Mount Royal Tunnel
18. Mount Shaughnessy Tunnel
19. Rathole
20. Red Sucker tunnel
21. Saint Lawrence River HVDC Powerline Crossing
22. Screaming Tunnel
23. Simcoe Street Tunnel
24. Spiral Tunnels
25. Thorold Tunnel
26. Toronto Islands Airport Pedestrian Tunnel
27. Townline Tunnel