Which structural behavior was exploited when building cantilever bridges across deep gorges in the 19th century?

💡 Explanation

When building cantilever bridges, balanced cantilever construction was essential as each section is added, its weight is counteracted by an equal weight on the opposite side, thus maintaining equilibrium. Therefore progressive balancing of loads results, rather than torsional stress management, arch resistance, or material creep, which are relevant in other structural designs.

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