Marquam (I-5) Bridge

The Marquam Bridge is a double deck 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.

p.s. Sorry for the late commenting. I have had a bad cold for the last few days and today is the worst. :(