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
PILOT CREEK Iowa 1970 439 23.8 m
LITTLE MAPLE RIVER Iowa 1971 439 23.8 m
MORGAN CREEK Iowa 2000 439 36.6 m
BRANCH SALT CREEK Iowa 1970 432 39.0 m
CRANE CREEK Iowa 1966 432 78.3 m
LITTLE ASHER CR Iowa 1968 432 38.7 m
S SKUNK RIVER Iowa 1967 430 106.7 m
SPRING CREEK Iowa 1959 430 23.8 m
ROCK CREEK Iowa 1985 430 31.4 m
WEST FORK LITTLE SIOUX Iowa 1955 429 65.2 m
LIZARD CK DD #54 Iowa 1964 429 17.4 m
SMALL CREEK Iowa 1900 429 6.4 m
BR LITTLE BEAR CREEK Iowa 1929 422 11.6 m
WELDON RIVER Iowa 1957 421 54.0 m
SOUTH WYACONDAH DITCH Iowa 1974 420 46.0 m
ANSON CREEK Iowa 1979 418 11.0 m
SMALL STREAM Iowa 1938 417 6.4 m
FIELD DRAINAGE DITCH Iowa 1951 417 7.3 m
FIELD DRAINAGE DITCH Iowa 1951 417 7.3 m
SMALL CREEK Iowa 1965 417 10.4 m
MIDDLE NODAWAY Iowa 1939 415 73.2 m
BRANCH BLACK HAWK CREEK Iowa 1973 412 17.7 m
BLACK HAWK CREEK Iowa 1973 412 75.0 m
CREEK Iowa 1964 409 6.4 m
UP RAILROAD Iowa 1948 406 36.9 m
DRAINAGE TO CAMP CREEK Iowa 1983 405 24.1 m
CREEK Iowa 1962 403 8.3 m
BAILEY CREEK Iowa 1956 403 37.2 m
SMALL CREEK Iowa 1968 403 18.6 m
DRY BRANCH CREEK Iowa 1964 403 25.3 m
CREEK Iowa 1953 403 11.6 m
STONY CREEK Iowa 1958 400 31.1 m
N FORK MAQUOKETA RIVER Iowa 1952 400 97.5 m
STONY FORK Iowa 1969 400 8.8 m
SMALL STREAM Iowa 1964 400 6.4 m
ROCK RIVER Iowa 1970 399 106.1 m
EAST NODAWAY RIVER Iowa 1955 399 54.6 m
CREEK Iowa 1939 399 13.6 m
RAPID CR Iowa 1960 398 12.2 m
UPPER IOWA Iowa 1950 393 76.8 m
UPPER IOWA Iowa 1950 393 7.6 m
UPPER IOWA Iowa 1949 393 16.2 m
BRUSH CREEK Iowa 1927 393 24.4 m
OVERFLOW Iowa 1950 393 24.7 m
UPPER IOWA Iowa 1949 393 25.3 m
BRANCH BEAVER CREEK Iowa 1966 393 18.9 m
FOUR MILE CREEK Iowa 1950 392 21.3 m
SMALL Iowa 1978 390 24.1 m
HOG BRANCH Iowa 1975 390 12.8 m
BACON CREEK Iowa 1968 390 46.6 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.