Kinzie Street Railroad Bridge
Apparently, this is called a "single leaf bascule bridge". Regardless of what it's called, it looks rickety.
According to Wikipedia:
At the time of its opening in 1908 it was the world's longest and heaviest bascule bridge. Previous bridges on the same site included the first bridge to cross the Chicago River, Chicago's first railroad bridge, and one of first all-steel bridges in the United States.
Apparently, it's been unused since 2000 when the newspaper moved all of its printing off site. Fortunately, this was made a historical marker in 2007 so you don't have to hurry to got get a picture.
This is actually 5 HDR images stitched together using CS4. Original HDR images were made using a Canon 7d and 15-85 with a Vanguard Tripod.
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