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 1900 46 6.1 m
DD 41 Iowa 1948 46 8.8 m
DD Iowa 1976 46 13.4 m
ARGO SLOUGH Iowa 1900 46 14.0 m
WATERWAY Iowa 1951 46 16.5 m
WATERWAY Iowa 1967 46 12.2 m
NISHNABOTNA RIVER Iowa 1959 46 71.6 m
BLACK CAT CREEK Iowa 1964 46 21.1 m
BRANCH FLANK CREEK Iowa 1965 46 41.8 m
OLD CHANNEL DES MOINES R Iowa 1956 46 18.0 m
BROADHORN CREEK Iowa 1915 46 28.0 m
W FK W NISHNABOTNA RIVER Iowa 1944 46 36.9 m
TRIB OF DICKENSON BRANCH Iowa 1965 46 24.4 m
KILGORE CREEK Iowa 1979 46 12.5 m
STREAM Iowa 1957 46 6.7 m
CREEK Iowa 1900 46 12.8 m
MUD CREEK Iowa 1900 46 37.2 m
KNACK CREEK Iowa 1915 46 10.7 m
SKILLET CREEK Iowa 1919 46 6.7 m
CEDAR CREEK Iowa 1952 46 25.3 m
GRAND RIVER Iowa 1957 46 63.1 m
STREAM Iowa 1988 46 12.2 m
CHARITON RIVER Iowa 1960 45 92.7 m
DEER CREEK Iowa 1925 45 11.9 m
N SHOAL CREEK Iowa 1971 45 17.7 m
N BRANCH SOAP CREEK Iowa 1951 45 55.8 m
DRAINAGE Iowa 1951 45 13.4 m
MID FK GRAND RIVER Iowa 1988 45 47.2 m
WATERWAY Iowa 1955 45 13.7 m
N ENGLISH RIVER Iowa 1955 45 28.7 m
SUGAR CREEK Iowa 1980 45 9.4 m
DEER CREEK Iowa 1977 45 10.7 m
LOTTS CREEK Iowa 1967 45 26.7 m
SUGAR CREEK Iowa 1976 45 7.3 m
JONES CREEK Iowa 1979 45 15.2 m
DRAINAGE Iowa 1950 45 13.1 m
MIDDLE RIVER Iowa 1948 45 63.4 m
CREEK Iowa 1960 45 12.2 m
MIDDLE RACOON Iowa 1958 45 61.3 m
MASON CREEK Iowa 1987 45 12.2 m
SUGAR CREEK Iowa 1933 45 17.7 m
IOWAY CREEK Iowa 1917 45 19.8 m
STREAM Iowa 1949 45 21.9 m
LITTLE SIOUX RIVER Iowa 1960 45 76.8 m
MONONA HARRISON DD Iowa 1959 45 55.5 m
DRAINAGE Iowa 1981 45 13.1 m
STREAM Iowa 1953 45 10.7 m
SIOUX RIVER Iowa 1960 45 17.4 m
WEST FORK DD Iowa 1961 45 51.5 m
SMALL CREEK Iowa 1955 45 13.1 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.