I'm going to guess this bridge is around 1900. Simply too heavy of a structure to predate that.
Well, I'm no guru (at least as I've been told), but I think that the 1884 date is probably correct...the chords are somewhat substantial, but the tension members are fairly slim, characteristic of RR bridges before the turn of the century, and it's pin-connected, putting it back in that era as well. The overhead portal bracing is pretty light too, making me think that 1884 is right. Any gurus out there to verify?
Stamp on piers shows 1884. Bridge appears newer, any input from the experts?
Found the correct date. The stamp was a little faded, and looked like "1884". It was indeed "1894", a much more appropriate date.