Pile Bridge

A pile bridge is a structure that uses foundations consisting of long poles (referred to as piles), which are made of wood, concrete or steel and which are hammered into the soft soils beneath the bridge until the end of the pile reaches a hard layer of compacted soil or rock. Piles in such cases are hammered to a depth where the grip or friction of the pile and the soil surrounding it will support the load of the bridge deck. Bridging solely using the pile method is nowadays a rare occurrence.

Read more about Pile Bridge:  Roman Pile Bridges, Construction During Medieval Times, Duration of Pile Bridges

Famous quotes containing the words pile and/or bridge:

    Science is facts. Just as houses are made of stones, so is science made of facts. But a pile of stones is not a house and a collection of facts is not necessarily science.
    Jules Henri Poincare (1854–1912)

    I see four nuns
    who sit like a bridge club,
    their faces poked out
    from under their habits,
    Anne Sexton (1928–1974)