| Name | Location | Status | Design | Year Built | Year Lost | Span Length | Total Length |
|---|---|---|---|---|---|---|---|
| Bollman Bridge | Bridge over Little Patuxent River | Open to pedestrians | Through truss | 1869 | -- | -- | 160 ft. |
| Deep Run Bridge | US 1 over Deep Run | Open to traffic | Arch | 1929 | -- | 22.0 ft. | 25.9 ft. |
| Folly Quarter Road Bridge | Folly Quarter Road over Middle Patuxent River | Open to traffic | Arch | 1922 | -- | 60.0 ft. | 64.0 ft. |
| Frederick Road Bridge | Frederick Road over Little Patuxent River | Open to traffic | Arch | 1930 | -- | 25.9 ft. | 29.9 ft. |
| Little Patuxent River Bridge | Southbound US 1 over Little Patuxent River | Open to traffic | Arch | 1900 | -- | 98.1 ft. | 99.1 ft. |
| Old Columbia Road Bridge | Old Columbia Road over Middle Patuxent River | Open to traffic | Arch | 1920 | -- | 44.9 ft. | 48.9 ft. |