Photo taken by Ian Nelson in July 2021
BH Photo #501436
I propose a possible alternate history for this bridge, that it might have been salvaged from this bridge: https://bridgehunter.com/de/new-castle/bh75654/ however this only works if the bridge at Bancroft Mill was not erected until 1921. The NRHP nomination lists a ca.1909 construction date for it, but this seemed off to me, since 1909 is a bit late for a pin connected Baltimore truss bridge, so that led me to wondering how accurate that date was. Note that the Washington Street Bridge had multiple spans, not just that big main span that doesn't seem to exactly match.
Any thoughts or insight into my theory would be appreciated.