Multi-span Plate Girder Bridge
Multispan plate-girder bridges may be an economical way to span gaps longer than can be spanned by a single girder. Piers serve as intermediate abutments between the end Abutments of bridge. Separate plate girder bridges span between each pair of abutments in order to allow for expansion joints between the spans. Concrete is commonly used for low piers, while steel trestle work may be used for high bridges.
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