Found that same bridge (serendipity) 2 or 3 years back and had always planned to go back - alas its gone per one of the posters.
Great thread. You are all over some of my favorite riding areas. Maybe we can score a ride together at some point. Let me show you some riding around Reelfoot Lake and surroundings.
1979 T140 Bonne
1996 KTM 360 EXC (To Ebay in pieces!)
2000 KX 250