| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Apple River Road Bridge | South Apple River Road over Apple River | Open to traffic | Through truss | ca. 1890 | -- | 110.8 ft. | 143.0 ft. |
| Carr Road Bridge | ICRR over Carr Road | Open to traffic | Arch | -- | -- | 15.1 ft. | 25.9 ft. |
| Culvert Road Bridge | ICRR over Culvert Road | Open to traffic | Arch | -- | -- | 15.1 ft. | 27.8 ft. |
| East Fork Galena River Bridge | township road over East Fork Galena River | Open to traffic | Pony truss | 1901 | -- | 75.1 ft. | 77.0 ft. |
| Elmoville Road Bridge | S. Elmoville Road over North Fork Plum River | Open to traffic | Other | 1934 | -- | 47.9 ft. | 49.8 ft. |
| First Twin Bridges Road Bridge | East Twin Bridges Road over Clear Creek | Open to traffic | Pony truss | ca. 1910 | -- | 34.1 ft. | 35.1 ft. |
| Georgtown Road Bridge | West Georgtown Road over Apple River | Open to traffic | Pony truss | ca. 1890 | -- | 75.1 ft. | 206.0 ft. |
| Irish Hollow Creek Bridge | township road over Irish Hollow Creek | Open to traffic | Pony truss | ca. 1940 | -- | 68.9 ft. | 70.8 ft. |
| Julien Dubuque Bridge | US 20 over Mississippi River | Open to traffic | Steel through arch | 1943 | -- | 845.2 ft. | 5761.8 ft. |
| Kelly Road Bridge | ICRR over Kelly Road | Open to traffic | Arch | -- | -- | 15.1 ft. | 27.8 ft. |
| Mud Run Bridge | township road over Mud Run | Open to traffic | Pony truss | 1901 | -- | 49.8 ft. | 51.8 ft. |
| Muddy Plum Bridge | TR 258 over Muddy Plum River | No longer exists | Pony truss | ca. 1910 | 2005 | 64.9 ft. | 67.9 ft. |
| Plum River Bridge | TR 197 over Plum River | Open to traffic | Pony truss | 1925 | -- | 53.1 ft. | 55.1 ft. |
| Posey Hill Road Bridge | ICRR over Posey Hill Road | Open to traffic | Arch | -- | -- | 13.1 ft. | 27.8 ft. |
| Second Twin Bridges Road Bridge | East Twin Bridges Road over Clear Creek | Open to traffic | Pony truss | 1915 | -- | 32.1 ft. | 33.4 ft. |
| Willow Road Bridge | Willow Road over Muddy Plum River | Open to traffic | Other | ca. 1910 | -- | 51.8 ft. | 54.1 ft. |