Bascule bridge
Moveable bridge using a counterweight to balance a span through its upward swing to let boats move underneath
Nº Q911663 ★★★
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Bascule bridge
Moveable bridge using a counterweight to balance a span through its upward swing to let boats move underneath
A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed.
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From Wikipedia
A bascule bridge (also referred to as a drawbridge or a lifting bridge) is a moveable bridge with a counterweight that continuously balances a span, or leaf, throughout its upward swing to provide clearance for boat traffic. It may be single- or double-leafed. The name comes from the French term for balance scale, which employs the same principle. Bascule bridges are the most common type of movable span because they open quickly and require relatively little energy to operate, while providing the possibility for unlimited vertical clearance for marine traffic.
Text: Wikipédia, CC BY-SA 4.0. · Image: Calips (CC BY-SA 3.0) ·
