![]() ![]() Some of the first man-made bridges with significant span were probably intentionally felled trees. Undoubtedly, ancient people would also have used log bridges that is a timber bridge that fall naturally or are intentionally felled or placed across streams. Neolithic people also built a form of boardwalk across marshes examples of such bridges include the Sweet Track and the Post Track in England, approximately 6000 years old. The simplest and earliest types of bridges were stepping stones.
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