Adams Covered Bridge Covered bridge over San Toy Creek on San Toy Road south of Portersville Open to pedestrians only Built 1875
Barkhurst Mill Covered Bridge Abandoned multiple Kingpost through truss bridge over Wolf Creek on TR21 (dead end) Abandoned Built 1872 NE of Chesterhill, now abandoned.
Helmick Mill Covered Bridge Covered bridge over Island Run on Milirk Road (TR 269) Open to one lane traffic with a weight limit Built 1867; rehabilitated 1991
Muskingum River CR 203 Bridge Through truss bridge over Muskingum River on County Road 203 in McConnelsville Open to traffic Built 1913 by the Oregonia Bridge Co. of Lebanon, Oh.; rehabilitated 1991
Olive Green Creek TR 942 Bridge Pony truss bridge over Olive Green Creek on Township Road 942 Open to traffic Built 1923 by the county engineer; rehabilitated 1970