This double-deck bridge has a long approach system for the upper deck only. Bridge length given includes the approach system. The lower deck overall length is limited to the main truss spans only, a total of 750 feet.
Be sure to view the historical articles which contain some photos and description of this bridge. This bridge consists of a double-deck truss system over the river, with a long approach system serving the upper deck of the bridge as well. The bridge has been transformed over the years. An unusual fact about this bridge is the upper deck, currently supporting four lanes of traffic, is actually narrower than it was originally. The bridge was originally designed with an upper deck that accommodated streetcars on one side and highway traffic on the other. It was noted by engineers of the period that despite this asymmetrical roadway layout (and loading), the bridge superstructure was nevertheless designed in a visually symmetrical manner. Later in this bridge's history, the streetcar rails were removed. Cantilever brackets that extended the deck well beyond the truss lines were partially cut off, and the deck was turned into a highway-only configuration. The approach spans have been heavily reworked over the years as well, with the bridge today being integral with an I-670 Interchange.
The lower deck of this bridge remains open to vehicular traffic, but it appears to be little-used.
Above: Historical photo showing bridge construction.
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