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 |
|---|---|---|---|---|---|
| DRAINAGE | Montana | 1940 | 473 | 12.0 m | |
| PABLO 3A CANAL 037 | Montana | 1985 | 471 | 9.1 m | |
| CRIPPLE HORSE CREEK | Montana | 1974 | 458 | 42.7 m | |
| DRAINAGE | Montana | 1956 | 446 | 10.4 m | |
| BIG SPRING CREEK 133 | Montana | 1962 | 437 | 15.5 m | |
| TOSTON CANAL | Montana | 1948 | 422 | 9.1 m | |
| REDWATER RIVER | Montana | 1950 | 420 | 46.2 m | |
| CEDAR CREEK | Montana | 1935 | 404 | 40.5 m | |
| WILD HORSE CREEK | Montana | 1941 | 395 | 30.5 m | |
| WILD HORSE CREEK | Montana | 1940 | 395 | 30.8 m | |
| COLLINS CREEK | Montana | 1940 | 392 | 17.8 m | |
| RR | Montana | 1965 | 391 | 39.7 m | |
| BOX ELDER CREEK | Montana | 1942 | 382 | 17.6 m | |
| CLARK FORK RIVER 020 | Montana | 1934 | 371 | 81.4 m | |
| DRAINAGE | Montana | 1940 | 368 | 29.0 m | |
| CLARK FORK 054 | Montana | 1932 | 356 | 157.9 m | |
| ROCK GUT | Montana | 1974 | 346 | 82.0 m | |
| CANAL 058 | Montana | 1941 | 331 | 15.3 m | |
| MISSOURI RIVER-RR 069 | Montana | 1931 | 316 | 167.6 m | |
| DAHL CREEK | Montana | 1939 | 309 | 18.0 m | |
| MAIN CREEK | Montana | 1939 | 309 | 29.6 m | |
| DRAINAGE | Montana | 1959 | 307 | 17.4 m | |
| JACK CREEK 028 | Montana | 1952 | 301 | 8.2 m | |
| PABLO 31A CANAL 036 | Montana | 2009 | 292 | 24.4 m | |
| IRRIGATION DITCH 001 | Montana | 1933 | 281 | 7.9 m | |
| MILK RIVER | Montana | 1967 | 256 | 66.1 m | |
| TWO MEDICINE RIVER | Montana | 1968 | 243 | 96.9 m | |
| YELLOW WATER CR-ELK CR | Montana | 1948 | 233 | 23.5 m | |
| W FORK POPLAR R OVRFLOW | Montana | 1932 | 229 | 23.5 m | |
| SPRAGUE COULEE | Montana | 1931 | 229 | 23.5 m | |
| DRAINAGE | Montana | 1941 | 222 | 17.4 m | |
| DRAINAGE | Montana | 1947 | 222 | 17.7 m | |
| DRAINAGE 009 | Montana | 1933 | 219 | 17.7 m | |
| DRAINAGE | Montana | 1938 | 214 | 11.9 m | |
| FORT BELKNAP CANAL 008 | Montana | 1933 | 212 | 14.6 m | |
| PEOPLES CREEK | Montana | 1976 | 200 | 52.1 m | |
| MISSOURI RIVER 019 | Montana | 1920 | 178 | 162.1 m | |
| CLARK FORK 053 | Montana | 1916 | 174 | 113.1 m | |
| ROCK CREEK | Montana | 1959 | 161 | 31.1 m | |
| BIG HOLE RIVER 041 | Montana | 1940 | 158 | 73.1 m | |
| BOULDER RIVER | Montana | 1950 | 157 | 9.2 m | |
| BOULDER RIVER 041 | Montana | 1933 | 157 | 30.2 m | |
| MEDICINE TAIL COULEE | Montana | 1938 | 150 | 14.0 m | |
| NINEMILE CREEK 035 | Montana | 1924 | 141 | 37.8 m | |
| NINEMILE SLIDE 026 | Montana | 1947 | 141 | 114.3 m | |
| ST REGIS RIVER 059 | Montana | 1937 | 140 | 59.3 m | |
| ROCK CR | Montana | 1970 | 136 | 14.1 m | |
| RUBY RIVER 023 | Montana | 1927 | 133 | 11.3 m | |
| CLARK FORK RIVER 002 | Montana | 1986 | 130 | 51.8 m | |
| CROW CREEK 070 | Montana | 1986 | 128 | 9.2 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.