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
MINERVA CR Iowa 1945 5 13.1 m
DEER CREEK Iowa 1977 5 8.5 m
STREAM Iowa 1954 5 18.6 m
SILVER CREEK Iowa 1938 5 43.6 m
FARM CREEK Iowa 1963 5 9.4 m
TRIB TO MAPLE RIVER Iowa 1900 5 23.2 m
TRIB TARKIO Iowa 1955 5 18.9 m
SMALL STREAM Iowa 1985 5 21.0 m
DRAINAGE Iowa 1987 5 19.8 m
DRAINAGE Iowa 1969 5 23.2 m
NISHNABOTNA TRIB Iowa 1970 5 12.5 m
DRAINAGE Iowa 1945 5 18.9 m
MINOR DRAINAGE Iowa 1966 5 18.3 m
OTTER CREEK Iowa 1949 5 27.4 m
STREAM Iowa 1999 5 13.1 m
MIDDLE TARKIO RIVER Iowa 1951 5 49.4 m
STREAM Iowa 1999 5 10.1 m
STREAM Iowa 1915 5 10.7 m
MUD CREEK Iowa 1956 5 11.6 m
PERRY CREEK Iowa 1900 5 15.2 m
PERRY CREEK Iowa 1952 5 11.3 m
CLEAR CREEK Iowa 1946 5 10.1 m
PLYMOUTH CREEK Iowa 1946 5 23.2 m
INDIAN CREEK Iowa 1961 5 24.1 m
BR N LIZARD CR DD#169 Iowa 1989 5 7.3 m
CROOKED CREEK Iowa 1980 5 9.1 m
BEAVER CK Iowa 1973 5 20.7 m
N LIZARD CREEK Iowa 1916 5 10.7 m
GRAYBILL CREEK Iowa 1947 5 32.3 m
JORDAN CREEK Iowa 1976 5 20.1 m
STREAM Iowa 1961 5 7.6 m
STREAM Iowa 1991 5 12.2 m
PIGEON CREEK Iowa 1925 5 43.6 m
WALNUT CREEK Iowa 1926 5 13.1 m
STREAM Iowa 1953 5 14.6 m
STREAM Iowa 1949 5 6.4 m
E BIG CREEK Iowa 1958 5 34.7 m
STREAM Iowa 1955 5 19.2 m
STREAM Iowa 1953 5 6.4 m
STREAM Iowa 1946 5 7.3 m
E FK GRAND RIVER Iowa 1962 5 37.2 m
W FK GRAND RIVER Iowa 1940 5 26.8 m
LOTTS CREEK Iowa 1952 5 14.6 m
LOTTS CREEK Iowa 1949 5 12.2 m
GOOSEBERRY CREEK Iowa 1956 5 14.9 m
STREAM Iowa 1952 5 14.3 m
STREAM Iowa 1956 5 10.1 m
STREAM Iowa 1954 5 7.9 m
STREAM Iowa 1954 5 7.6 m
E FORK GRAND RIVER Iowa 1969 5 14.9 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.