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
CREEK Iowa 1926 20 6.4 m
BOONE RIVER Iowa 1969 20 35.1 m
BOONE RIVER Iowa 1925 20 11.3 m
SMALL STREAM Iowa 1987 20 12.8 m
TIPTON CREEK Iowa 1900 20 36.6 m
TIPTON CREEK Iowa 1985 20 17.4 m
CANOE CREEK Iowa 1924 20 18.3 m
MOSQUITO CREEK Iowa 1940 20 55.2 m
KEG CREEK Iowa 1957 20 12.8 m
MOSQUITO CREEK Iowa 1930 20 67.7 m
UNNAMED STREAM Iowa 1970 20 36.3 m
ALLEN CREEK Iowa 1959 20 18.9 m
CREEK Iowa 1900 20 9.4 m
CREEK Iowa 1980 20 6.7 m
ALLEN CREEK Iowa 1976 20 20.4 m
CRANE CREEK Iowa 1937 20 41.5 m
PARNELL CREEK Iowa 1935 20 9.4 m
WRIGHT CREEK Iowa 1900 20 32.6 m
LITTLE BEAR CREEK Iowa 1952 20 22.9 m
SNAKE CREEK Iowa 1980 20 27.7 m
BUCK CREEK Iowa 1994 20 18.9 m
STREAM Iowa 1968 20 18.3 m
W TARKIO RIVER Iowa 1972 20 39.0 m
WEST TARKIO CREEK Iowa 1977 20 37.5 m
STREAM Iowa 1984 20 31.7 m
STREAM Iowa 1953 20 39.0 m
WEST TARKIO RIVER Iowa 1953 20 23.8 m
DD #123 Iowa 1966 20 13.7 m
PERRY CREEK Iowa 1900 20 18.3 m
DD Iowa 1956 20 9.4 m
CHARITON RIVER Iowa 1983 20 27.1 m
DRAINAGE Iowa 1949 20 9.4 m
WESTFIELD CREEK Iowa 1948 20 11.3 m
DRAINAGE Iowa 1949 20 14.0 m
W BR FLOYD RIVER Iowa 1941 20 43.6 m
W BR FLOYD RIVER Iowa 1900 20 28.0 m
DRAINAGE Iowa 1961 20 12.8 m
INDIAN CREEK Iowa 1900 20 13.7 m
BROKEN KETTLE CREEK Iowa 1959 20 7.6 m
BROKEN KETTLE CREEK Iowa 1948 20 9.1 m
INDIAN CREEK Iowa 1956 20 11.6 m
INDIAN CREEK Iowa 1900 20 9.1 m
SO LIZARD CR DD#22 Iowa 1918 20 11.9 m
LITTLE CEDAR CREEK Iowa 1953 20 21.3 m
F0UR MILE CREEK Iowa 1979 20 13.1 m
BEAVER CREEK Iowa 1900 20 15.9 m
BEAVER CREEK Iowa 1957 20 17.7 m
N LIZARD CREEK Iowa 1921 20 9.8 m
N LIZARD CREEK Iowa 1974 20 16.5 m
MUD CREEK Iowa 1925 20 13.7 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.