The list of great bridges ... of all bridge types… Culverts are everywhere, particularly on rail lines, where it is estimated that there are approximately three culverts for every bridge.

Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch ...

Arch bridges are one of the oldest types of bridges and have great natural strength. Instead of pushing straight down, the weight of an arch bridge is carried outward along the curve of the arch ...