Looking up at the northwest end of the trestle, which is about 708′ long and around 100′ high, over Lonesome Valley Road in Claiborne County TN.   Here’s the southeast end:

 

This is on the same Norfolk Southern line I discussed in the Oakman tunnels posting.  This trestle, old as it appears, was most certainly a replacement or reinforcement of an existing trestle.  The original concrete footers are still there.