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Bannock County
| Name | Location | Status | Design | Year Built | Year Lost | Span Length (ft.) | Total Length (ft.) |
|---|
| Bristol Park Lane Bridge | Bristol Park Lane over Portnuef River | Open to traffic | Warren pony truss with all verticals | -- | -- | -- | -- |
| E Merrill Road Bridge | East Merrill Road over Portneuf R;Nw.Mccammon B | Intact but closed to all traffic | Pony truss | 1925 | -- | 60.0 | 63.0 |
| McCammon Bridge | US 30 over Portneuf River and Union Pacific Railroad | Replaced by new bridge | Concrete deck girder | 1936 | 1990 | 72.0 | 584.0 |
| Old US 30 Bridge | Co.Rd;Plng#058a over Portneuf R;Ne.Lava Branch | Intact but closed to all traffic | Pony truss | 1945 | -- | 60.0 | 63.0 |
| Old US 30 Portneuf River Bridge | Old US 30 over Portneuf River | Derelict/abandoned | Warren pony truss with alternating verticals | -- | -- | -- | -- |
| Portneuf River Bridge | US 30 over Union Pacific Railroad and Portneuf River | Replaced by a new bridge | Polygonal Warren through truss | 1949 | 2010 | 180.1 | 379.0 |
| West Whitman Street Bridge | Whitman S over Portneuf R;Whitman St Branch | Closed to all traffic | Warren pony truss | 1924 | -- | 60.0 | 62.0 |