Personally... I think it might just be a King.
Historic bridge inventory photos and info comment this bridge is a truss that is attached to load-bearing stringers as a decoration. They think its a Wrought Iron bridge Company Bridge. If so, its one of their more obscure/uncommon designs. Despite alteration (and ineligibility for National Register) its still a nice looking bridge.
Tony,
I think you are right. I cropped the HBI photo so you can see a plaque. It looks like it might say King Bridge Co. and nothing else. Maybe a date on top.