Pontoon bridge

Pontoon bridges are floating bridges supported by floating pontoons with sufficient bouyancy to support the bridge and dynamic loads. While pontoon bridges are usually temporary structures, some are used for long periods of time[1].

They are especially useful in war to cross rivers. They are usually temporary, and are sometimes destroyed after crossing (to keep the enemy from using them), or collapsed and carried (if on a long march).

They were used to great advantage in many battles throughout time, including the Battle of the Garigliano, the Battle of Oudenarde, and many other battles.