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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
INT MONIDA S 509 Montana 1959 1,771 36.0 m
SKALKAHO CREEK 053 Montana 1941 1,713 23.8 m
TOBACCO RIVER Montana 1971 1,699 93.2 m
IRRIGATION CANAL Montana 1970 1,635 7.0 m
NEVADA CREEK Montana 1936 1,594 17.6 m
PEDESTRIAN UNDERPASS Montana 1972 1,548 14.0 m
RR Montana 1957 1,537 96.0 m
SWAN RIVER 110 Montana 1911 1,503 36.6 m
DRAINAGE Montana 1970 1,452 6.4 m
STOCKPASS Montana 1949 1,432 6.4 m
RR Montana 1959 1,397 56.0 m
SEP WEST HILL-I 15 127 Montana 1967 1,364 97.5 m
CLARK FORK Montana 1966 1,354 91.7 m
DRAINAGE Montana 1973 1,351 13.5 m
BAKER CREEK Montana 1967 1,287 30.9 m
LOST CREEK Montana 1953 1,246 17.7 m
DRAINAGE Montana 1939 1,067 17.6 m
UNSTABLE SLOPE Montana 1981 1,013 79.2 m
BLACKTAIL CREEK Montana 1965 1,012 44.2 m
RR 061 Montana 1932 1,001 34.4 m
MISSOURI RIVER Montana 1962 930 215.8 m
DEMPSEY CREEK 059 Montana 1930 916 19.5 m
BELT CREEK Montana 1968 833 50.6 m
MISSOURI RIVER OVERFLOW Montana 1950 818 85.3 m
LOLO CREEK Montana 1957 799 27.1 m
BITTERROOT RIVER 020 Montana 1984 746 27.4 m
BITTERROOT RIVER 017 Montana 1984 746 18.3 m
S FORK AMERICAN FORK Montana 1941 706 8.8 m
PIPE CREEK Montana 1987 702 21.9 m
BULL RIVER Montana 1960 692 23.5 m
DRAINAGE Montana 1939 680 23.3 m
DRAINAGE Montana 1939 680 26.4 m
CEMETERY COULEE Montana 1939 680 17.8 m
RYE CREEK Montana 1947 661 17.6 m
FISH CREEK Montana 1942 661 34.7 m
MISSOURI RIVER Montana 1959 655 212.7 m
PINKHAM CREEK Montana 1971 612 63.4 m
RR Montana 1936 612 43.6 m
CADETTE CREEK Montana 1971 612 29.6 m
GALLATIN RIVER 084 Montana 1919 569 43.3 m
TWO LEGGINS CANAL 0 Montana 1931 564 10.1 m
POPLAR RIVER 015 Montana 1985 563 31.9 m
INT MIDWAY I 15 Montana 1972 540 106.4 m
SURPRISE DITCH 060 Montana 1918 537 8.5 m
WILLIAMS COULEE 007 Montana 1930 507 23.6 m
MILES CREEK 037 Montana 1929 507 17.8 m
COTTONWOOD CREEK 083 Montana 1928 507 52.6 m
MACKS CREEK 038 Montana 1929 507 12.0 m
MISSOURI RIVER 054 Montana 1933 484 154.5 m
RED LODGE CREEK Montana 1953 481 8.2 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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