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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.

Clear
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.

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