From Longman Dictionary of Contemporary Englishpontoon bridgeponˈtoon bridge noun [countable] TECa floating bridge which is supported by several pontoons
Examples from the Corpus
pontoon bridge• They crossed over by pontoon bridge.• We soon saw the lengthy pontoon bridge spanning the Angara River.• Military traffic has been crossing the new pontoon bridge since Dec. 31 at a rate up to 400 vehicles each day.• About 300 tanks, artillery pieces and other heavy vehicles will have crossed the pontoon bridge by Wednesday, military engineers say.• The pontoon bridge linking Balzac to Joyce. 