This bridge is historically significant on several levels. It was an early example of a large-scale concrete bridge. While smaller concrete bridges were being built in substantial numbers at the time this bridge was built, it was rare for a large viaduct like this to be constructed of concrete. The bridge is notable for its design by the prestigious engineering firm Waddell and Harrington. Lastly, the bridge's double deck design adds to the significant design of the bridge. In particular, the bridge's main span over the railroad tracks, which is a concrete arch, is very unique on account of the double-deck design, with the lower deck passing through the arch.
Above: This drawing from the Transactions of the American Society of Civil Engineers shows the way the falsework for the arch span was set up so as to not disrupt the trains below.
Above: Historical photos showing bridge construction.
Above: These photos show the stairway which no longer exists today.
This bridge is tagged with the following special condition(s): Double-Deck
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