Pontoon bridge in 638. The army of the Umayyad Caliphate built a pontoon bridge over the Bosporus in 717 during the Siege of Constantinople (717–718). The Carolingian army of Charlemagne constructed a portable pontoon bridge of anchored boats bound together and used it to cross the Danube during campaigns against the Avar Khaganate in the 790s. Charlemagne's army built two fortified pontoon bridges across the Elbe in 789 during a campaign against the Slavic Veleti. The German army of Otto the Great employed three pontoon bridges, made from pre-fabricated materials, to rapidly cross the Recknitz river at the Battle on the Raxa
Pontoon (song) "lyrics are so dull that, when paired with the weird reverb on Karen Fairchild’s vocal, they start to sound like a diary of seasickness." The song was awarded with 2012 Single Of The Year by the Country Music Association and 2013 Grammy Award for Best Country Duo/Group Performance. The music video was directed by Declan Whitebloom and premiered in May 2012. It was filmed at Percy Priest Lake in Nashville, Tennessee. "Pontoon" debuted at number 51 on the U.S. "Billboard" Hot Country Songs chart for the week of May 19, 2012. For the week of September 15, 2012, "Pontoon" became