I took my drone out to see this bridge. Wished it was a bit better, but I kept losing the signal as I couldn't get as low as I would have liked.
Mark W. Shannon
The road & bridge has been closed for at least 30-40 years according to one FaceBook Source. Discovered bridge on Google Earth following a visit to Peterson Bridge downstream in 2014. Confirmed existence April 4, 2015. More info to follow.
April 23rd, 2017, I found that I had a 1973 Ralls/Monroe County Platt Book. CR173 appears to be non-existent from the south and from the north it dead-ends into a field. Today there is a modular home on the south end of CR173. Thus it seems this bridge has been abandoned since before 1973. Hmmm, the mystery deepens?
Abandoned Pratt through truss bridge over Middle Fork Salt River on Former County Road 173