Disadvantages of Suspension Bridges: Cost, Wind Vulnerability, and Maintenance
- High construction costs: Complex engineering, massive cables, and towers make them the most expensive bridge type (often hundreds of millions of dollars).
- Wind vulnerability: Long spans are prone to wind-induced vibrations (flutter, galloping); aerodynamic fairings and dampers are needed.
- Complex maintenance: Regular inspection of cables, anchorages, and deck is labor-intensive and costly; corrosion is a constant battle.
- Limited capacity: Weight constraints restrict traffic volume; adding lanes or decks increases cost and complexity.
- Aesthetic impact: Massive towers and cables can dominate landscapes, sparking visual controversy.
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