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 1934 289 10.7 m
BRANCH OTTER CREEK Iowa 1970 288 10.7 m
WOLF CREEK BRANCH Iowa 1972 285 17.7 m
SHELL ROCK RIVER Iowa 1963 285 136.6 m
WAPSIPINICON RIVER Iowa 1968 285 8.2 m
FLINT RIVER Iowa 1941 280 37.2 m
BOYER RIVER Iowa 1964 280 31.4 m
WILLOW CREEK Iowa 1964 279 13.4 m
TRIB. OF BEAVER CREEK Iowa 1948 279 7.3 m
CAMP CK Iowa 1973 279 39.0 m
SMALL STREAM Iowa 1968 278 23.2 m
NORTH ELK CREEK Iowa 1939 278 46.9 m
SMALL NATURAL STREAM Iowa 1939 278 6.4 m
SMALL Iowa 1973 275 17.7 m
PLUM CREEK Iowa 1949 275 12.8 m
DRAINAGE Iowa 1955 275 19.5 m
DEER CREEK Iowa 1954 275 54.3 m
BLACKHAWK CREEK BRANCH Iowa 1965 275 13.4 m
BRUSH CREEK Iowa 1957 275 38.7 m
CREEK Iowa 1972 275 22.9 m
CRANE CREEK Iowa 1971 275 11.0 m
QUARTER SEC RUN Iowa 1939 275 56.1 m
DRAINAGE Iowa 1964 270 30.5 m
SMALL STREAM Iowa 1925 270 6.7 m
SUGAR CREEK Iowa 1950 270 21.0 m
LITTLE SIOUX RIVER Iowa 1966 270 53.3 m
ROCK CREEK Iowa 1964 270 15.2 m
INDIAN CREEK Iowa 1957 270 32.9 m
STREAM Iowa 1981 270 19.2 m
BIG CREEK Iowa 1964 270 43.3 m
CREEK Iowa 1983 269 12.2 m
HURTZEL RUN Iowa 1900 269 9.8 m
LIZARD CREEK Iowa 1968 268 10.1 m
MUD CREEK Iowa 1967 265 21.3 m
BEAVER CREEK BRANCH Iowa 1932 265 6.4 m
BIG MINERVA CREEK Iowa 1967 265 46.6 m
LITTLE WAPSIPINICON RVR Iowa 1961 265 51.8 m
DD #2 & 36 Iowa 1974 264 9.1 m
STREAM Iowa 1956 260 7.0 m
ASHTON CREEK Iowa 1974 260 31.1 m
NORTH RIVER Iowa 1962 260 77.4 m
CARTERS CREEK Iowa 1967 260 46.0 m
GOLLS CREEK Iowa 1969 259 12.2 m
DITCH NO.60 Iowa 1967 259 23.8 m
DRAINAGE DITCH 6 Iowa 1968 259 14.6 m
EAST IOWA RIVER Iowa 1967 259 39.3 m
CREAMERY CREEK Iowa 1961 257 18.9 m
MIDDLE NODAWAY RIVER Iowa 1968 255 77.4 m
TRIB W FORK CEDAR RIVER Iowa 1966 255 9.1 m
OVER CNW RR Iowa 1936 255 38.7 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.