Poor Condition Bridges in Iowa

4,423 bridges rated Poor condition in Iowa. 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 4,423 such bridges in Iowa.

Clear
Bridge State Condition Year Built ADT Length
BEAR CREEK Iowa 1950 60 36.9 m
MIDDLE MINERVA CREEK Iowa 1953 60 18.9 m
CREEK Iowa 1975 60 7.0 m
SMALL STREAM Iowa 1930 60 9.8 m
WEST TARKIO RIVER Iowa 1960 60 39.9 m
BRUSHY FORK CREEK Iowa 1925 60 28.3 m
FIELD STREAM Iowa 1946 60 9.5 m
EAST BR INDIAN CREEK Iowa 1922 60 10.4 m
MUCHAKINOCH CREEK Iowa 1951 60 13.1 m
S. SKUNK RIVER Iowa 1948 60 99.7 m
SMALL STREAM Iowa 1928 60 9.8 m
WATERWAY Iowa 1952 60 64.0 m
DRAINAGE DITCH Iowa 1948 60 10.7 m
SMALL STREAM Iowa 1959 60 7.9 m
CREEK Iowa 1950 60 7.0 m
STREAM Iowa 1923 60 7.9 m
CREEK Iowa 1956 60 9.1 m
PIGEON CREEK Iowa 1967 60 28.0 m
SMALL CREEK Iowa 1958 60 13.4 m
ROCK CREEK Iowa 1958 60 7.9 m
S. BR. BIG CREEK Iowa 1957 60 31.4 m
FLOYD RIVER Iowa 1954 60 59.4 m
STREAM Iowa 1920 60 8.8 m
BR MILL CR Iowa 1955 60 8.2 m
STREAM Iowa 1973 60 6.1 m
STREAM Iowa 1940 60 7.3 m
POT HOLE CREEK Iowa 1957 60 13.4 m
STREAM Iowa 1957 60 17.4 m
NORTH LIZARD CREEK Iowa 1970 60 26.8 m
BRUSH CREEK Iowa 1980 60 22.3 m
TRIB OF LITTLE RIVER Iowa 1969 60 24.4 m
LITTLE TARKIO TRIB Iowa 1947 60 11.6 m
NORTH RIVER Iowa 1960 60 77.4 m
DM RIVER Iowa 1911 60 33.5 m
STREAM Iowa 1939 60 12.8 m
E NISHNABOTNA RIVER Iowa 1958 60 91.4 m
LONG CREEK Iowa 1950 60 37.2 m
SMALL STREAM Iowa 1949 60 10.7 m
COTTONWOOD DRAIN Iowa 1953 60 22.9 m
WEST TARKIO RIVER Iowa 1957 60 54.6 m
TARKIO CREEK Iowa 1949 60 40.2 m
BROWN CR Iowa 1961 60 9.4 m
N FORK LONG CR Iowa 1973 60 14.6 m
NISHNABOTNA Iowa 1942 60 86.6 m
STREAM Iowa 1953 60 21.0 m
STREAM Iowa 1952 60 17.4 m
BOYER RIVER Iowa 1916 60 28.3 m
CEDAR CREEK Iowa 1952 60 92.4 m
STREAM Iowa 1967 60 9.4 m
MIDDLE TARKIO RIVER Iowa 1949 60 78.3 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.