None of the above ardecila. It's actually a "sacrificial" beam designed to absorb the energy of an above clearance vehicle hitting it, thus protecting the actual girder bridge from damage... Pretty clever really. I also thought about the graffiti issue but I don't see why it would be more tag worthy than the actual large bridge girder.
Does anyone know what color they plan on painting these new bridges? I could see I nice green or perhaps dark gray or even black.
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