Vulcan and Bridges

For the first half century or so of its existence, Vulcan was a diversified company with several markets related to public and civil works. One of those was bridges, both road and railroad. Today it is customary to build bridges fixed as high as the navigation (or lack thereof) requires. But the combination of expense and, in the case of railroads, avoiding excessive grades, bridges were frequently bascule (draw) or swinging bridges. These require durable mechanisms to raise, lower or swing the roadway out of the way of ships.

Most of the bridges Vulcan outfitted are gone, but it’s an interesting look at both an era in American history and Vulcan’s own capabilities.

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