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 RESERVE STREET Montana 1966 13,664 59.4 m
CLARK FORK RIVER Montana 1970 13,081 77.6 m
CLARK FORK RIVER Montana 1964 9,168 299.2 m
U1025-RR Montana 1960 8,576 521.4 m
U1024-25-RR Montana 1960 8,576 522.1 m
ABANDONED RR Montana 1969 8,575 61.9 m
FLATHEAD RIVER Montana 1955 8,310 209.0 m
NINE PIPE RESERVOIR Montana 1933 8,158 23.6 m
INT LINCOLN-I 15 Montana 1962 7,492 62.8 m
RR Montana 1973 5,992 76.2 m
RR Montana 1973 5,992 80.7 m
BIG CHERRY CREEK Montana 1976 5,295 46.0 m
INT W GARRISON-RR Montana 1979 5,232 216.3 m
YELLOWSTONE RIVER Montana 1957 5,017 175.5 m
CLEAR CREEK Montana 1973 4,317 16.0 m
SOUTH WILLOW CREEK Montana 1934 4,102 11.9 m
SEP ELIZABETH LN Montana 1965 4,088 135.9 m
CLARK FORK RIVER Montana 1965 4,088 245.9 m
YELLOWSTONE RIVER 170 Montana 1949 4,005 311.5 m
CLARK FORK RIVER Montana 1984 3,719 332.8 m
MILK RIVER Montana 1964 3,311 65.2 m
SEP I 90 Montana 1959 3,188 139.3 m
INT EAST LIVINGSTON I 90 Montana 1962 2,910 85.0 m
CRANE CREEK Montana 1957 2,821 11.3 m
BEAVERHEAD RIVER 033 Montana 1946 2,676 45.6 m
TEEPEE CREEK Montana 1962 2,605 8.8 m
GRAYLING CREEK Montana 1962 2,605 14.2 m
BIG DITCH 051 Montana 1932 2,489 19.8 m
CLARK FORK RIVER Montana 1960 2,482 290.3 m
YELLOWSTONE RIVER Montana 1994 2,438 335.9 m
RATTLESNAKE CREEK 009 Montana 1966 2,363 28.7 m
IRRIGATION-STOCKPASS Montana 1940 2,335 46.6 m
LODGE CREEK Montana 1942 2,335 28.7 m
CLARK FORK RIVER Montana 1949 2,330 41.1 m
OTTER CREEK Montana 1959 2,314 31.4 m
OTTER CREEK Montana 1959 2,314 31.2 m
OTTER CREEK Montana 1959 2,314 31.4 m
WEBER IRRIGATION CANAL Montana 1950 2,300 8.2 m
MISSION CREEK 052 Montana 1929 2,233 10.1 m
RR Montana 1956 2,225 110.3 m
SANDSTONE CREEK Montana 1941 2,209 19.7 m
DRAINAGE Montana 1940 2,141 11.9 m
DRAINAGE Montana 1940 2,141 17.7 m
BOULDER RIVER OVERFLOW Montana 1937 2,133 7.8 m
KOOTENAI RIVER-RR Montana 1942 2,104 287.1 m
ABANDONED RR-ANTELOPE CR Montana 1939 2,063 62.1 m
CHELSEA CREEK Montana 1960 2,054 11.4 m
TEN MILE CREEK 071 Montana 1962 1,929 15.5 m
INT LIMA-BAILEY ST Montana 1959 1,863 36.3 m
FISH CREEK Montana 1953 1,858 11.6 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.