Limits RegistryPUBLIC RECORD
Limits RegistryThe Quebec Bridge, spanning the Saint Lawrence River in Canada, has a main span of 549 m — the longest cantilever bridge span in the world, completed in 1917 after two earlier catastrophic collapses during construction killed 89 workers, leading to major reforms in structural engineering practice.
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The Quebec Bridge, spanning the Saint Lawrence River in Canada, has a main span of 549 m — the longest cantilever bridge span in the world, completed in 1917 after two earlier catastrophic collapses during construction killed 89 workers, leading to major reforms in structural engineering practice.
The greatest main span length of any cantilever bridge — a distinct structural type from suspension or cable-stayed bridges.
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Permanent ID limitsregistry.com/limits/LR-LONGEST-CANTILEVER-BRIDGE-SPAN
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Limits Registry. LR-LONGEST-CANTILEVER-BRIDGE-SPAN. Longest cantilever bridge span. 2026.