BASCULEBRIDGE
Bascule bridge
A bascule 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 above text is a snippet from Wikipedia: Bascule bridge
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bascule bridge
Noun
- A movable bridge consisting of one or two opening leafs equipped with balancing counterweights that ease and speedy up their operation.
The above text is a snippet from Wiktionary: bascule bridge
and as such is available under the Creative Commons Attribution/Share-Alike License.