The alignment was the Santa Fe (ATSF) Hamlin Sub, still active as late as 1989, but haven't found anything else about it.
I added this bridge because so many people on this website have been good at digging up historical photos and info about long lost bridges. This bridge was in the middle of nowhere so it might be a challenge. But it was a large bridge over a major river. I am sure it was a railroad bridge because we know the previous 1901 highway bridge in this area was closer to the existing highway bridges.
Fully intact in 1995 aerial view. Appears to be partially dismantled in 2004 view, and completely gone by 2008.