This category is for listing sites about the history of bridge construction and design. The category has two sub categories:
category for people who have made significant contributions in the field, and
A structure over 50 years old carrying a road or railway over an expanse of water or a gap.
This category is for listing sites about individual builders and designers who have made significant contributions in the field of bridge construction and design.
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Last update: Sunday, February 12, 2012 10:15:03 AM EST -