3 shows the three forms in which the pontoon bridge may be made up.

Pontoon bridge made of. Various shots of Vernon Major pontoon bridge being built. Wooden framed pontoons covered with canvas pontoons made of India rubber and cotton canvas floats followed. According to Roman historian Suetonius the bridge spanned more than 3 miles across the bay.

Because seawater is present around some floating bridges concrete comes in especially handy as it is resistant to saltwater corrosion and adequately dampens vibrations from traffic wind and waves. This bridge consisted of two parallel pontoon bridges each made up of 314 and 360 boats which were tied to the riverbank and T anchored to the riverbed to support the weight of the Persian army with two million men and horses. Modern pontoon bridges are made from polyethylene modules that may be connected and configured into a variety shapes with different load bearing capabilities.

A major obstacle in the path f the Persian King Xerxes army was the Hellespont a waterway at the head of the Aegean that was nearly a mile wide at its narrowest and separated Asia Minor from Europe. Location of events unclear unknown. It may be too expensive to suspend a bridge from anchored piers.

Roman Pontoon Bridge Dacia At its simplest form a pontoon bridge is a collection of shallow draft boats lashed together across a river or canal with some form of track or deck lashed to the top. Pontoon bridges made out of concrete have the added advantage of resistance to saltwater corrosion. By Kurt Schlosser on March 30.

Merlin An early pontoon bridge was constructed in 480 bce by Persian engineers to transport Xerxes invading army across the Hellespont Dardanelles. HIS PROPOSAL WAS FOR A BRIDGE MADE FROM INTERCONNECTED CONCRETE BARGES. Caligula wanted a bridge that he could ride triumphantly across it in his carriage.

This was followed by light welded steel box pontoons. A pontoon bridge is a bridge that floats on water. A pontoon bridge is a series of floating structures.