Generals' Highway Stone Bridges was created in 1930.
Stone bridges were built to get over rivers etc, before iron or steel was used.
Illinois Central Stone Arch Railroad Bridges was created in 1855.
Stone masonry bridgeSteel bridgesTimber bridgesBow string bridges
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Bridges
Bridges can be built of many different materials including stone, concrete, wood and metals.
Most stone bridges last for over a couple of centuries.
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Bridges built in the 1800s were typically constructed of wood or stone. Some bridges were also starting to be constructed of steel in the early 1800s.
The most common materials used in bridge building are generally steel or concrete for larger bridges, and stone or wood for smaller bridges.
Favorite materials for bridges include steel, aluminum, titanium, wood, stone, and reinforced concrete.