FROM PORTLAND’S PAST ~

1964 Marquam Bridge under construction
THE MARQUAM BRIDGE UNDER CONSTRUCTION IN 1964.


THE BRIDGE TODAY VIEWED from the southwest, atop
Marquam Hill.

The Marquam Bridge is a double-deck, steel-truss cantilever bridge that
carries
Interstate 5 traffic across the Willamette River south of downtown Portland, Oregon. It is the busiest bridge in Oregon, carrying 135,900 
vehicles a day as
of 2008. The upper deck carries northbound traffic;
the lower deck carries southbound traffic.


The bridge was designed and built by the
Oregon Department of
Transportation
 at a cost of $14 million. The lower southbound deck
was opened on October 4, 1966, and the upper northbound deck on
October 18, 1966. The Marquam was
the first Portland bridge to
undergo a
seismic retrofit in 1995.




MarquamBridge.jpg

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posted by Bob Karm in Construction,CURRENT EVENTS,HISTORY,Oregon History,Photography,PORTLAND'S PAST,THEN AND NOW and have No Comments

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