Poor Condition Bridges in Idaho

250 bridges rated Poor condition in Idaho. 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 250 such bridges in Idaho.

Clear
Bridge State Condition Year Built ADT Length
DRY CREEK Idaho 1930 30 18.9 m
CLOVER CREEK Idaho 1985 30 12.5 m
EAST MAIN CANAL Idaho 1965 30 12.2 m
WILDHORSE RIVER Idaho 1908 30 14.6 m
FALL CREEK Idaho 1987 30 15.8 m
BLACK WARRIOR CREEK Idaho 1975 30 9.4 m
QUEENS RIVER NO. 2 Idaho 1962 30 19.2 m
M.FK.BOISE RIVER(KIRBY) Idaho 1991 30 41.8 m
COTTONWOOD CREEK Idaho 1960 30 9.1 m
HANGMAN CREEK Idaho 1981 30 17.0 m
N.FK.EAST RIVER Idaho 1939 30 37.2 m
RUBY CREEK(#4) Idaho 1970 30 7.3 m
HENRYS FK SNAKE RIVER Idaho 1925 30 47.9 m
MORES CREEK Idaho 1962 30 7.9 m
JOHNSON CREEK Idaho 1977 30 21.3 m
Milner Gooding Canal Idaho 1960 25 21.3 m
Dietrich Main Canal Idaho 1987 25 19.6 m
Twin Falls N. Side Canal Idaho 1964 25 9.6 m
NAPIAS CREEK Idaho 1953 25 7.9 m
S.FK.CDA R.;EB OFF RAMP Idaho 1964 20 53.3 m
LITTLE WOOD RIVER Idaho 1930 20 10.4 m
N. GOODING CANAL Idaho 1975 20 8.5 m
MILNER GOODING CANAL Idaho 1977 20 24.1 m
LITTLE SALMON RIVER Idaho 1923 20 19.2 m
WEISER RIVER Idaho 1982 20 18.6 m
SHAFER CREEK Idaho 1914 20 11.3 m
REYNOLDS CREEK Idaho 1960 20 9.8 m
CRANE CREEK Idaho 1955 20 18.6 m
L.W.BR.PRIEST R;MOORE CR Idaho 1980 20 12.2 m
CAMAS CREEK Idaho 1972 20 9.1 m
ELK CREEK Idaho 1961 20 7.3 m
ELK CREEK Idaho 1961 20 7.4 m
MIDDLE FORK BOISE RIVER Idaho 1957 20 42.8 m
GRIMES CREEK Idaho 1954 20 16.3 m
THIRD FK.CHIEF EAGLE EYE Idaho 1963 20 12.2 m
SLOUGH BRIDGE Idaho 1912 15 29.6 m
TROUT CREEK Idaho 1912 15 27.1 m
SOUTH FORK BOISE RIVER Idaho 1989 12 21.3 m
RICHFIELD CANAL Idaho 1932 10 31.1 m
BIG WOOD RIVER Idaho 1945 10 28.0 m
CROSSCUT CANAL Idaho 1937 10 10.4 m
MARYSVILLE CANAL Idaho 1976 10 7.6 m
N. BRANCH FALL RIVER CNL Idaho 1932 10 7.3 m
FALL RIVER OVERFLOW Idaho 1932 10 7.3 m
SOUTH FORK SALMON RIVER Idaho 1934 10 94.5 m
SAVAGE CREEK Idaho 2006 10 13.5 m
BEAR VALLEY CREEK Idaho 1960 10 7.5 m
U CANAL Idaho 1934 5 46.3 m
LITTLE WOOD RIVER Idaho 1965 5 16.2 m
BEAR CREEK Idaho 1983 5 11.0 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.