Poor Condition Bridges in Montana
388 bridges rated Poor condition in Montana. FHWA National Bridge Inventory.
Bridges Rated Poor Condition
A bridge is rated Poor when one or more of its major components (deck, superstructure, or substructure) has a condition rating of 4 or below on the FHWA 0–9 scale. Poor condition does not mean imminent danger of collapse, but indicates significant deterioration requiring priority maintenance or replacement. There are 388 such bridges in Montana.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| SARPY CREEK 003 | Montana | 1925 | 28 | 31.1 m | |
| SUNDAY CREEK | Montana | 1998 | 25 | 8.1 m | |
| N F MEADOW CR | Montana | 1953 | 25 | 7.5 m | |
| BUFFALO COULEE 108 | Montana | 1950 | 23 | 9.8 m | |
| IRRIGATION CANAL 042 | Montana | 1920 | 21 | 12.0 m | |
| CRACKERBOX CREEK 043 | Montana | 1997 | 21 | 22.9 m | |
| SOUTH FORK VALLEY CREEK | Montana | 1995 | 20 | 8.4 m | |
| E FK FISHTRAP | Montana | 1973 | 20 | 7.5 m | |
| RUBY CR | Montana | 1968 | 20 | 7.3 m | |
| RUBY CR | Montana | 1952 | 20 | 7.3 m | |
| GOOD CREEK | Montana | 1962 | 20 | 10.0 m | |
| TEN MILE CREEK | Montana | 1957 | 20 | 7.3 m | |
| LITTLE BLACKFOOT R 027 | Montana | 1914 | 19 | 18.6 m | |
| IRRIGATION DITCH 005 | Montana | 1979 | 17 | 8.8 m | |
| ROSS FORK CREEK 018 | Montana | 1925 | 16 | 21.6 m | |
| DRAINAGE | Montana | 1973 | 16 | 7.3 m | |
| TIE CREEK | Montana | 1964 | 15 | 7.3 m | |
| BIG SWAMP CR | Montana | 1968 | 15 | 7.5 m | |
| BIG SWAMP CR | Montana | 1968 | 15 | 7.5 m | |
| BEAVERHEAD RIVER 023 | Montana | 1908 | 14 | 29.3 m | |
| UPPER LODGE GRASS CREEK | Montana | 1994 | 12 | 7.0 m | |
| Anita Dam Spillway | Montana | 1937 | 10 | 13.0 m | |
| GRAVES CREEK | Montana | 1970 | 10 | 12.2 m | |
| WHALE CREEK | Montana | 1954 | 10 | 18.6 m | |
| SPAR CR | Montana | 1955 | 10 | 12.2 m | |
| E FK BITTERROOT RI | Montana | 1969 | 9 | 14.2 m | |
| SHEEP CREEK 002 | Montana | 1986 | 9 | 8.7 m | |
| WISE RIVER | Montana | 1992 | 6 | 8.0 m | |
| CF WMA - Eastside Canal | Montana | 1974 | 5 | 12.0 m | |
| BLACK CANYON CREEK | Montana | 1965 | 5 | 6.4 m | |
| DALY CR | Montana | 1958 | 5 | 7.3 m | |
| LOSTHORSE CR | Montana | 1958 | 5 | 10.1 m | |
| DODSON NORTH CANAL 013 | Montana | 1986 | 5 | 7.9 m | |
| RED ROCK RIVER 121 | Montana | 1913 | 4 | 22.9 m | |
| DRAG CREEK | Montana | 1963 | 2 | 7.3 m | |
| CARROLL COULEE | Montana | 1963 | 1 | 12.2 m | |
| BOULDER RIVER | Montana | 1947 | 1 | 8.0 m | |
| DUVAL COULEE | Montana | 2006 | — | 9.8 m |
About Poor Condition Bridge Ratings
FHWA rates bridge components on a 0–9 scale. A rating of 4 or below on any major component (deck, superstructure, substructure) classifies the bridge as Poor condition. The bridge remains open to traffic but requires priority attention. Bridges rated 0–2 are immediately closed.