Mercer County Road 162 Bridge Plate girder bridge with wooden deck over the Union Pacific Railroad on CR 162 Open to traffic Built 1901
Mill Grove Railroad Bridge Through truss bridge over Weldon River on the Union Pacific Railroad at Mill Grove near Route D Open to railroad traffic
Muddy Creek CR 160 Bridge Pony truss bridge over Muddy Creek on CR 160 Replaced by new bridge Built ca. 1910; replaced 2004
Muddy Creek CR 244 Bridge Lost pony truss bridge over Muddy Creek on CR 244 No longer exists Built ca. 1910; replaced 2002
Pops Branch Bridge Lost pony truss bridge over Pops Branch on Emblem Road beyond the end of Route FF Replaced by new bridge Replaced 1999
Princeton Overhead Bridge Lost(?) wooden bridge over the Union Pacific Railroad somewhere near Princeton Lost
Route M Bridge Wooden bridge over the Union Pacific Railroad on Route M Open to traffic
West Fork Little River Bridge Lost through truss bridge over West Fork Little River on Cher Road (CR 44) Replaced by new bridge Built ca. 1910; replaced 1994
Wildcat Creek CR 162 Bridge Pony truss bridge over Wildcat Creek on CR 162 Closed to all traffic Built ca. 1930