Thanks for the info, Justin. If you find anything out about the stone abutment upstream, I'd love to hear about it.
I'm not sure when but the abutments were the the old abutments of this bridge. They built new abutments and placed the bridge on them. My grandmother used to have the newspaper clipping talking about this.
There are 2 concrete abutments next to this bridge and one stone abutment up stream. I don't know the history of these structures though. Also, be advised that there is some very racist and vulgar graffiti on this bridge. I know almost every bridge has stuff like this, but it is more prominently displayed on this one. I chose to leave that picture out.