It is a floating bridge with barges or boats pontoons to support the bridge deck.

Pontoon bridge made of. Bridges may be specified for low volume pedestrian traffic right up to a bridge strong enough to drive a tank over. Unissued Unused material. This was followed by light welded steel box pontoons.

It may be too expensive to suspend a bridge from anchored piers. Wooden framed pontoons covered with canvas pontoons made of India rubber and cotton canvas floats followed. This idea alone seems to confirm that Caligula may have been suffering from some form of madness as it is hard to imagine an emperor spending his time riding a carriage across a bridge with no real purpose for doing so.

Permanent floating bridges are useful for sheltered quiet water-crossings. Permanent pontoon bridges are more sturdily built. 3 shows the three forms in which the pontoon bridge may be made up.

As a light bridge to carry field artillery and horsed transport the pontoons being used singly with five steel road-bearers from saddle to saddle. LS soldiers walking across it. 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.

Caligula wanted a bridge that he could ride triumphantly across it in his carriage. 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. Pontoon Bridge - 480 BC.

How do you use pontoon bridge in sentence. HIS PROPOSAL WAS FOR A BRIDGE MADE FROM INTERCONNECTED CONCRETE BARGES. Modern pontoon bridges are made from polyethylene modules that may be connected and configured into a variety shapes with different load bearing capabilities.