Beam bridge

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Wooden beam bridge

A beam bridge is a strong, horizontal structure that rests on two end supports, and carries traffic by acting as a beam.

Beam bridges are often used for heavy cars and trains to pass, and some are also built for people to walk on. Beam bridges used to be made from wood and were called log bridges. Modern ones are mostly made of steel. Beam bridges are usually placed over highways or gaps in the earth so people or cars can cross over them. A beam bridge cannot be as long as more complex kinds. Two beam bridges can be connected to make one longer bridge.