This bridge today sits right next to the
Lewis and Clark
Viaduct. Together these two bridges carry a freeway today, but originally,
the Intercity Viaduct stood alone, and functioned as a major city crossing.
Originally a single deck deck truss, ca. 1930 the bridge was converted to allow
a single lane of traffic that passed through the truss on a lower deck, making
the bridge a double-deck design. Today, the lower deck has been converted into a
The main double-deck truss spans are impressive, and their subdivided
Double-Warren truss configuration is uncommon. The approach system, particularly
south of the main spans, is impressive for its length as well.
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