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pontoon bridge

noun
1.
a bridge supported by pontoons.
Origin
1695-1705
1695-1705
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for pontoon bridge
  • It was a pontoon bridge of unprecedented scale and sophistication, and the first constructed of concrete.
  • The bridge had already been damaged so bad and our engineers had gone in there under cover of darkness and laid a pontoon bridge.
Encyclopedia Article for pontoon bridge

floating bridge

floatingfloating bridge, used primarily but not invariably for military purposes. A pontoon bridge was constructed in 480 BC by Persian engineers to transport Xerxes' invading army across the Hellespont (Dardanelles). According to Herodotus, the bridge was made of 676 ships stationed in two parallel rows with their keels in the direction of the current. Alexander the Great is said to have crossed the Oxus by rafts made of his soldiers' tents of hide stuffed with straw.

Learn more about floating bridge with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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