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 |
|---|---|---|---|---|---|
| CAMAS CREEK 002 | Montana | 1978 | 100 | 11.6 m | |
| LITTLE BITTERROOT RV 070 | Montana | 1978 | 100 | 11.6 m | |
| CABINET GORGE RESV 047 | Montana | 1922 | 100 | 182.8 m | |
| INT VICTOR I 15 003 | Montana | 1961 | 100 | 64.0 m | |
| SWEET GRASS CREEK 044 | Montana | 1970 | 100 | 14.6 m | |
| UPPER DEER CREEK 028 | Montana | 1975 | 100 | 13.4 m | |
| WEST BOULDER RIVER 025 | Montana | 1912 | 100 | 18.9 m | |
| MUDDY CREEK 018 | Montana | 1938 | 100 | 26.8 m | |
| GREENFIELD SO CANAL 039 | Montana | 1966 | 100 | 11.9 m | |
| DRAINAGE 129 | Montana | 1974 | 100 | 6.9 m | |
| LITTLE SNAKE CREEK 048 | Montana | 1965 | 100 | 7.9 m | |
| LINDEKE COULEE 007 | Montana | 1930 | 100 | 18.0 m | |
| E FK PORCUPINE CREEK 112 | Montana | 1960 | 100 | 12.2 m | |
| VANDALIA SOUTH CANAL 089 | Montana | 1938 | 100 | 18.6 m | |
| LITTLE PORCUPINE CR 064 | Montana | 1965 | 100 | 21.3 m | |
| BEAVER CREEK 115 | Montana | 1931 | 100 | 72.5 m | |
| VANDALIA SOUTH CANAL 078 | Montana | 1989 | 100 | 11.6 m | |
| CUSTER COULEE 098 | Montana | 1962 | 100 | 7.6 m | |
| BIG SPRING CREEK 061 | Montana | 1940 | 100 | 8.5 m | |
| BIG SPRING CREEK 062 | Montana | 1940 | 100 | 9.8 m | |
| LITTLE CASINO CREEK 138 | Montana | 2006 | 100 | 8.4 m | |
| YAAK RIVER | Montana | 1951 | 99 | 51.8 m | |
| SOUTH FORK YAAK RIVER | Montana | 1953 | 99 | 12.3 m | |
| N FK SUN RIVER | Montana | 1927 | 99 | 83.2 m | |
| SEVEN MILE CREEK 025 | Montana | 1983 | 94 | 22.7 m | |
| HAY CREEK | Montana | 1950 | 88 | 11.9 m | |
| BR MAIN CANAL 035 | Montana | 1928 | 80 | 19.7 m | |
| BR MAIN CANAL 036 | Montana | 1938 | 80 | 20.6 m | |
| BIG MUDDY CREEK 046 | Montana | 1950 | 79 | 12.2 m | |
| VAIL CREEK | Montana | 1976 | 77 | 14.6 m | |
| SHEEP CREEK 097 | Montana | 1950 | 68 | 19.8 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 7.4 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 8.5 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 8.5 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 8.6 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 7.5 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 7.3 m | |
| S FK JUDITH RIVER | Montana | 1958 | 65 | 7.6 m | |
| BIG HORN CANAL 009 | Montana | 1946 | 63 | 17.7 m | |
| SOUTH FORK MILK RIVER | Montana | 1979 | 60 | 31.1 m | |
| LIMEKILN CANYON 022 | Montana | 1931 | 60 | 6.9 m | |
| W BOULDER RIVER 038 | Montana | 1938 | 52 | 27.4 m | |
| CANYON CR | Montana | 1952 | 50 | 8.1 m | |
| MILL CREEK | Montana | 1952 | 50 | 8.7 m | |
| WAPITI CREEK | Montana | 1954 | 50 | 8.7 m | |
| GOOD CREEK | Montana | 1972 | 50 | 7.5 m | |
| CLARENCE CR | Montana | 1977 | 50 | 7.5 m | |
| WEST FORK YAAK RIVER | Montana | 1987 | 50 | 17.4 m | |
| FLOWER CR | Montana | 1961 | 50 | 8.7 m | |
| BOBTAIL CR | Montana | 1973 | 50 | 7.3 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.