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 |
|---|---|---|---|---|---|
| PLUM CREEK | Iowa | 1962 | 62 | 17.1 m | |
| LITTLE TURKEY RIVER | Iowa | 1966 | 62 | 44.5 m | |
| LITTLE ROCK RIVER | Iowa | 1900 | 62 | 36.6 m | |
| LIZARD CREEK | Iowa | 1900 | 62 | 23.8 m | |
| LITTLE SIOUX RIVER | Iowa | 1915 | 62 | 54.9 m | |
| STREAM | Iowa | 1955 | 62 | 7.9 m | |
| SMALL STREAM | Iowa | 1918 | 62 | 7.9 m | |
| STREAM | Iowa | 1957 | 62 | 9.8 m | |
| GINGER CREEK | Iowa | 1952 | 62 | 9.8 m | |
| ROCK RIVER | Iowa | 1900 | 62 | 58.5 m | |
| DICKENSON BRANCH | Iowa | 1949 | 62 | 30.5 m | |
| PINNEY CREEK | Iowa | 1900 | 62 | 9.1 m | |
| BOONE RIVER | Iowa | 1902 | 62 | 56.7 m | |
| STREAM | Iowa | 1958 | 62 | 7.6 m | |
| OVER BNSF RR | Iowa | 1977 | 61 | 48.5 m | |
| MINOR DRAINAGE | Iowa | 1930 | 61 | 36.0 m | |
| DRAINAGE | Iowa | 1956 | 61 | 6.1 m | |
| SMALL STREAM | Iowa | 1954 | 61 | 10.1 m | |
| W BR LITTLE SIOUX | Iowa | 1977 | 61 | 31.1 m | |
| PAINT CREEK | Iowa | 1915 | 60 | 34.1 m | |
| TEEPLE CREEK | Iowa | 1900 | 60 | 15.9 m | |
| STREAM | Iowa | 1953 | 60 | 9.8 m | |
| DM RIVER | Iowa | 1911 | 60 | 33.5 m | |
| BOYER RIVER | Iowa | 1958 | 60 | 39.0 m | |
| CREEK | Iowa | 1920 | 60 | 25.0 m | |
| CROOKED CREEK | Iowa | 1936 | 60 | 21.6 m | |
| SMALL CREEK | Iowa | 1967 | 60 | 11.0 m | |
| TRIB DES MOINES RIVER | Iowa | 1950 | 60 | 12.2 m | |
| DD #13 | Iowa | 1971 | 60 | 6.7 m | |
| BIG BEAR CREEK | Iowa | 1951 | 60 | 37.2 m | |
| BR MILL CR | Iowa | 1955 | 60 | 8.2 m | |
| JORDAN CREEK | Iowa | 1954 | 60 | 39.3 m | |
| BRUSHY FORK CREEK | Iowa | 1925 | 60 | 28.3 m | |
| FIELD STREAM | Iowa | 1946 | 60 | 9.5 m | |
| SMALL | Iowa | 1976 | 60 | 13.1 m | |
| WEST TARKIO RIVER | Iowa | 1960 | 60 | 39.9 m | |
| STREAM | Iowa | 1972 | 60 | 23.8 m | |
| SMALL CREEK | Iowa | 1958 | 60 | 13.4 m | |
| MIDDLE RIVER | Iowa | 1930 | 60 | 18.6 m | |
| UNNAMED CREEK | Iowa | 1955 | 60 | 17.4 m | |
| BRANCH IOWA RIVER | Iowa | 1988 | 60 | 12.2 m | |
| WATERWAY | Iowa | 1952 | 60 | 64.0 m | |
| BIG BEAR CREEK | Iowa | 1955 | 60 | 38.7 m | |
| PINE CREEK | Iowa | 1955 | 60 | 46.3 m | |
| ODEBOLT CREEK | Iowa | 1949 | 60 | 46.6 m | |
| STREAM | Iowa | 1923 | 60 | 7.9 m | |
| SMALL CREEK | Iowa | 2000 | 60 | 6.1 m | |
| ROCK CREEK | Iowa | 1958 | 60 | 7.9 m | |
| W FK GRAND RIVER | Iowa | 1930 | 60 | 22.3 m | |
| BEAR CREEK | Iowa | 1950 | 60 | 36.9 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.