Title page of survey drawings
Location on map
Uploaded by Clark Vance
View this photo at lcweb2.loc.gov
BH Photo #263989
Whatever it is at those coordinates looks like it might be an old span. It may have connected River Street to Six Mile Norris Highway. It may also just be a flatbed trailer or something. Bing bird's eye is not clear at all, and Google maps shows low quality.
Looks like a number of roads in the vicinity are named "____ Bridge Road", but there are also a number of modern bridges.
It looks like a neat area to explore, with old dams and other interesting sites as well.
I wish I had seen your comment before I went up there last Thursday! I was within a quarter mile of the lat/long that you gave. I'll take solace in the fact that I was pressed for time and might not have had a chance to look at what you spotted and will just have to venture back up there in a few weeks!
The HABS documentation in the link suggests that the bridge collapsed in 1982. It was a 6 panel Howe covered bridge.
This bridge page was probably added in 2008 from the HABS Docs, since it has no map location and no photos.
That said, Google maps does show something possibly of interest at 34.774537,-82.773008
Sadly, I believe this bridge has actually been demolished since it was intially posted in 2008. I do not see it on any aerial shots of the area. I will follow-up with field recon & update listing, if needed. If it's still there, I'll get a picture up on the site.