| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Book Bridge | TR 348 over Muddy Creek | Open to traffic | Pratt pony truss | ca. 1895 | -- | -- | 56.1 ft. |
| Breakneck Creek Bridge | PA 3014 over Breakneck Creek | Open to traffic | Closed-spandrel arch | 1933 | -- | 40.0 ft. | 43.0 ft. |
| Butler City Viaduct | PA 8 over B&LE Railroad | Open to traffic | Deck truss | 1918 | -- | 185.0 ft. | 839.0 ft. |
| Caldwell Bridge | TR 500 over Connoquenessing Creek | Open to traffic | Pratt pony truss | 1910 | -- | 56.1 ft. | 61.0 ft. |
| Connoq. Creek Bridge | LR214,SR0068 over B&Le,B&P Railroads;Connoq. Creek | Open to traffic | Through truss | 1937 | -- | 168.0 ft. | 868.2 ft. |
| Cunningham Bridge | TR 572 over Bull Creek | Open to traffic | Pratt pony truss | ca. 1910 | -- | 40.0 ft. | 44.0 ft. |
| Gus Flinner Bridge | TR 357 over Yellow Creek | Open to traffic | Pratt pony truss | ca. 1910 | -- | 39.0 ft. | 42.0 ft. |
| McDeavitt Bridge | TR 691 over Buffalo Creek | Open to traffic | Warren pony truss | 1907 | -- | -- | 50.9 ft. |
| McFann Bridge | TR 384 over Glade Run | Open to traffic | Pratt pony truss | ca. 1910 | -- | 40.0 ft. | 43.0 ft. |
| Payne Bridge No. 2 | TR 318 over Muddy Creek | Open to traffic | Closed-spandrel arch | 1909 | -- | 29.9 ft. | 34.1 ft. |
| Senn Bridge | TR 323 over Little Connoquenessing Creek | Open to traffic | Polygonal Warren pony truss | 1929 | -- | 86.0 ft. | 90.9 ft. |
| Slippery Rock Creek Bridge | PA 173 over Slippery Rock Creek | Open to traffic | Closed-spandrel arch | 1929 | -- | 69.9 ft. | 140.1 ft. |
| Wigton Bridge | TR 455 over Glade Run | Open to traffic | Closed-spandrel arch | 1927 | -- | -- | 37.1 ft. |