The description here suggests a build date just prior to 1920: https://books.google.com/books?id=VVN-PFaS9RQC&lpg=PA106&ots...
I visited this location in October of 2015. We were able to drive up to within 200 feet of the bridge on a public road from the south. When I was a kid I remember crossing this bridge several times, riding with my mom. There was a sign on the North side that said "Cross At Your Own Risk". Not sure when it washed out.
I was unable to find any information on this bridge. So if anybody knows anything or knows of a good place to get some research that would be awesome.
If you look at historic aerial photographs available online back to 1948 it appears that the bridge is indeed intact and that the river substantially changed course after 1991.