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.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| OLIVE BRANCH CREEK | Iowa | 1950 | 30 | 16.5 m | |
| SMALL | Iowa | 1979 | 30 | 18.9 m | |
| WATERWAY | Iowa | 1958 | 30 | 9.8 m | |
| BUCK CREEK | Iowa | 1900 | 30 | 39.0 m | |
| ROCK CREEK | Iowa | 1915 | 30 | 9.1 m | |
| SMALL CREEK | Iowa | 1919 | 30 | 8.5 m | |
| MAPLE RIVER | Iowa | 1919 | 30 | 20.7 m | |
| CREEK | Iowa | 1918 | 30 | 8.2 m | |
| SHORT CREEK | Iowa | 1967 | 30 | 24.7 m | |
| NORTH TIMBER CREEK | Iowa | 1951 | 30 | 13.1 m | |
| BIG INDIAN CREEK | Iowa | 1967 | 30 | 28.0 m | |
| CREEK | Iowa | 1925 | 30 | 7.9 m | |
| ROCK CR | Iowa | 1950 | 30 | 10.7 m | |
| SOUTH ENGLISH RIVER | Iowa | 1990 | 30 | 10.7 m | |
| MOON CREEK | Iowa | 1952 | 30 | 23.5 m | |
| MAYNES CREEK | Iowa | 1955 | 30 | 54.0 m | |
| MAYNES CR | Iowa | 1956 | 30 | 13.4 m | |
| BUFFALO CREEK | Iowa | 1971 | 30 | 17.1 m | |
| VILLAGE CREEK | Iowa | 2000 | 30 | 18.3 m | |
| FARMERS DITCH | Iowa | 1900 | 30 | 33.8 m | |
| W FK LITTLE SIOUX RIVER | Iowa | 1952 | 30 | 62.2 m | |
| WOLF CREEK | Iowa | 1958 | 30 | 19.2 m | |
| LITTLE BEAVER CREEK | Iowa | 1924 | 30 | 7.0 m | |
| BRANCH OTTER CREEK | Iowa | 1970 | 30 | 12.2 m | |
| BRANCH WOLF CREEK | Iowa | 1956 | 30 | 17.4 m | |
| LINN CREEK | Iowa | 1919 | 30 | 10.1 m | |
| FLANK CREEK | Iowa | 1965 | 30 | 9.8 m | |
| BRANCH BLACK HAWK CREEK | Iowa | 1977 | 30 | 15.9 m | |
| STREAM | Iowa | 1954 | 30 | 12.8 m | |
| BUCK CREEK | Iowa | 1976 | 30 | 15.2 m | |
| WOLF CREEK | Iowa | 1940 | 30 | 21.6 m | |
| LONG DICK CREEK | Iowa | 1924 | 30 | 13.7 m | |
| DRAINAGE DITCH | Iowa | 1923 | 30 | 15.2 m | |
| DRAINAGE DITCH | Iowa | 1919 | 30 | 9.8 m | |
| NORTH WALNUT CREEK | Iowa | 1955 | 30 | 13.7 m | |
| NORTH WALNUT CREEK | Iowa | 1979 | 30 | 12.5 m | |
| STREAM | Iowa | 1953 | 30 | 7.3 m | |
| STREAM | Iowa | 1977 | 30 | 8.5 m | |
| RATHBURN CREEK | Iowa | 1900 | 30 | 11.6 m | |
| MINERVA CREEK | Iowa | 1984 | 30 | 15.9 m | |
| BIG WHISKEY CREEK | Iowa | 1953 | 30 | 25.0 m | |
| TIPTON CREEK | Iowa | 1984 | 30 | 21.3 m | |
| BRUSHY CREEK | Iowa | 1900 | 30 | 6.4 m | |
| HONEY CREEK | Iowa | 1988 | 30 | 18.0 m | |
| WALKER CREEK | Iowa | 1983 | 30 | 11.0 m | |
| BERRY BRANCH | Iowa | 1974 | 30 | 12.5 m | |
| LYNN CREEK | Iowa | 1974 | 30 | 13.1 m | |
| TURKEY RIVER | Iowa | 1986 | 30 | 9.8 m | |
| NORTH TURKEY | Iowa | 1966 | 30 | 10.4 m | |
| DM RIVER | Iowa | 1905 | 30 | 66.1 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.