SKOL 11th Street Bridge
Photo taken by John Marvig in October 2017
BH Photo #408387
Someone added the category "recycled turntable" so I'm going to assume it probably is. In which case it was originally designed to be supported from the center rather than the ends.
The shape of the girders do make a guy wonder if they came from something with a center support, but Street View underneath gives no clues, and the image is stitched/distorted down the center.
Who knows? Maybe it's just about having a taller/stronger web at center span.
This bridge gives me the impression of being made from a recycled turntable. Thoughts?