Blue, with a hint of Yellow

Looking closeup at a part of the Market Street Bridge in Chattanooga, TN just a couple of months before it's exstensive renovations were finished. What makes this bridge different that any other bridge I've seen is its a Double-Leaf overhead counterweight Bascule Bridge. Has anyone ever seen, or ever photographed this bridge in it's "open" position? Everything on the bridge is painted blue, except for the concrete counterbalance and the Yellow gears which I had never noticed before taking this picture.

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