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
SMALL STREAM Iowa 1987 29 9.8 m
NORTH SKUNK RIVER Iowa 1938 29 9.1 m
WEASEL CK Iowa 1957 28 7.6 m
SMALL Iowa 1988 27 7.9 m
MCCANDLESS CLEGHORN Iowa 1976 26 10.1 m
MINK CREEK Iowa 1938 26 8.8 m
STREAM Iowa 1924 26 10.1 m
SMALL Iowa 1983 26 15.5 m
SMALL STREAM Iowa 1927 26 6.7 m
CREEK Iowa 1956 26 23.8 m
CREEK Iowa 1967 26 12.8 m
BR NISHNABOTNA Iowa 1959 26 7.0 m
E NISHNABOTNA RIVER Iowa 1971 26 27.4 m
DRAINAGE Iowa 1958 26 10.1 m
CREEK Iowa 1952 26 18.3 m
WATERWAY Iowa 1955 26 15.9 m
PLYMOUTH CREEK Iowa 1960 26 18.3 m
BUCK CREEK Iowa 1974 26 32.0 m
STREAM Iowa 1900 26 12.2 m
EAST BIG CREEK Iowa 1951 26 21.6 m
MIDDLE BR WAPSINONOC CR Iowa 1950 26 14.6 m
E FK GRAND RIVER Iowa 1961 26 37.2 m
WESTFIELD CREEK Iowa 1951 26 38.4 m
ROCK RUN CREEK Iowa 1930 26 8.5 m
BR ROCK RUN CR Iowa 1900 26 10.1 m
WILLOW CREEK Iowa 1900 26 14.0 m
ROCK FALLS CREEK Iowa 1900 26 8.8 m
MAPLE RIVER Iowa 1900 26 43.0 m
STREAM Iowa 1968 26 7.9 m
CREEK Iowa 1953 26 6.1 m
KEIGLEY CREEK Iowa 1949 26 12.8 m
DRAINAGE DITCH Iowa 1923 26 12.8 m
BEAR CREEK Iowa 1972 26 19.2 m
WALNUT CREEK Iowa 1915 26 14.3 m
BOONE RIVER Iowa 1924 26 55.5 m
GOOSE CREEK Iowa 1975 26 10.1 m
WEST IOWA RIVER Iowa 1957 26 29.0 m
BOONE RIVER Iowa 1967 26 17.7 m
WEST IOWA RIVER Iowa 1956 26 13.7 m
SMALL STREAM Iowa 1986 26 12.8 m
CREEK Iowa 1986 26 14.3 m
HONEY CREEK Iowa 1986 26 18.3 m
WEST FORK CROOKED CREEK Iowa 1949 26 14.3 m
TILTON CREEK Iowa 1981 26 10.4 m
DRAINAGE Iowa 1976 26 13.7 m
PIGEON CREEK Iowa 1955 26 18.3 m
BRANCH SUGAR CREEK Iowa 1922 26 7.9 m
LITTLE WAPSIPINICON RVR Iowa 1984 26 14.3 m
SMALL STREAM Iowa 1940 26 11.9 m
UPPER IOWA RIVER Iowa 1880 26 34.7 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.