Whats the difference between a bridge and a viaduct?

Answer 1

A viaduct is a type of bridge, but it has several spans, usually of equal length. Bridges and viaducts can span land or water.

In Romance languages they differentiate between viaduct (bridge over land) and 'ponte' (bridge over water).

Answer 2

A flyover starts and finishes at approximately the same level as the road or roads over which it flies. Its purpose is to allow streams of traffic to cross without obstructing each other.

A viaduct provides a solution to taking a roadway over a valley - which is why most viaducts in Britain carry railways rather than roads - at the time the railways were being built nobody saw any good reason why horses and people should not carry on walking up and down hills. Trains, on the other hand, could not cope with steep hills, so a level path was provided by cuttings, embankments, tunnels and viaducts depending on the hilliness of the terrain.

Answer 3

a viaduct is a bridge , an aquaduct is built specifically to carry water. Aqua means water.

Answer 4

Bridge goes over , tunnel goes under.