| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Blanchard River Bridge | County Road 3 over Blanchard River | Unknown status | Pratt through truss | 1886 | -- | 136.2 ft. | 139.1 ft. |
| County Road 6 Bridge | County Road 6 over Rilery Creek | Open to traffic | Pratt through truss | 1893 | -- | -- | 86.9 ft. |
| County Road P Bridge | County Road P over Sugar Creek | Open to traffic | Pratt pony truss | 1896 | -- | -- | 69.9 ft. |
| County Road R Bridge | County Road R over Plum Creek | Open to traffic | Polygonal Warren pony truss | 1955 | -- | 36.1 ft. | 40.0 ft. |
| Little Auglaize River TR 25 Bridge | TR 25 over Little Auglaize River | Open to traffic | Pratt pony truss | -- | -- | 61.0 ft. | 95.1 ft. |
| North Powell Creek Bridge | TR 20 over North Powell Creek | No longer exists | Pony truss | -- | 2000 | 58.1 ft. | 67.9 ft. |
| Ottawa River Bridge | County Road P over Ottawa River | Unknown status | Through truss | 1918 | -- | 160.1 ft. | 165.0 ft. |
| Ottawa River Old OH 12 Bridge | Old OH 12 over Ottawa River | Open to traffic | Closed-spandrel arch | 1932 | -- | 69.9 ft. | 230.0 ft. |
| Riley Creek TR K-6 Bridge | Township Road K-6 over Riley Creek | Open to traffic | Pratt pony truss | 1900 | -- | -- | 70.9 ft. |
| Township Road 18A Bridge | Township Road 18A over North Powell Creek | Open to traffic | Pratt pony truss | 1900 | -- | 38.1 ft. | 40.0 ft. |
| Township Road 19-A Bridge | Township Road 19-A over North Powell Creek | Open to traffic | Pratt pony truss | 1898 | -- | 36.1 ft. | 39.0 ft. |
| Township Road 23 Bridge | Township Road 23 over South Powell Creek | Open to traffic | Pratt pony truss | 1900 | -- | 55.1 ft. | 60.0 ft. |
| Township Road G Bridge | Bridge on Township Road G | Open to traffic | Closed-spandrel arch | 1916 | -- | 60.0 ft. | 64.0 ft. |
| Township Road M Bridge | Township Road M over Little Auglaize River | Open to traffic | Pratt pony truss | 1900 | -- | -- | 87.9 ft. |
| Township Road M-6 Bridge | Township Road M-6 over Riley Creek | Open to traffic | Bowstring pony truss | 1876 | -- | 80.1 ft. | 86.0 ft. |
| Township Road R-23 Bridge | Township Road R-23 over Little Auglaize River | Open to traffic | Pratt pony truss | 1900 | -- | -- | 70.9 ft. |
| Township Road S Bridge | Township Road S over Sugar Creek | Open to traffic | Pratt pony truss | 1900 | -- | -- | 75.1 ft. |
| Township Road U-13 Bridge | Township Road U-13 over Sugar Creek | Open to traffic | Polygonal Warren pony truss | 1955 | -- | 56.1 ft. | 60.0 ft. |
| Wayne Street Bridge | Wayne Street over Plum Creek | Open to traffic | Pony truss | 1900 | -- | 35.1 ft. | 36.1 ft. |