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 |
|---|---|---|---|---|---|
| STEELE CREEK | Iowa | 1952 | 40 | 74.1 m | |
| CREEK | Iowa | 1970 | 40 | 7.9 m | |
| UNNAMED CREEK | Iowa | 1966 | 40 | 7.6 m | |
| ELK CREEK | Iowa | 1900 | 40 | 55.8 m | |
| JONATHON CREEK | Iowa | 1961 | 40 | 46.3 m | |
| DRAINAGE | Iowa | 1930 | 40 | 7.0 m | |
| SM STREAM | Iowa | 1974 | 40 | 16.2 m | |
| COLD SPRING BRANCH | Iowa | 1959 | 40 | 9.8 m | |
| LIZARD CK DD #53 | Iowa | 1975 | 40 | 9.8 m | |
| EAST RIVER | Iowa | 1950 | 40 | 30.5 m | |
| MILL CREEK | Iowa | 1973 | 40 | 27.7 m | |
| STREAM | Iowa | 1951 | 40 | 7.3 m | |
| BADGER CREEK | Iowa | 1890 | 40 | 28.3 m | |
| BRANCH OF BEAVER CREEK | Iowa | 1953 | 40 | 15.2 m | |
| DRAINAGE | Iowa | 1960 | 40 | 15.9 m | |
| SO ENGLISH RIVER | Iowa | 1980 | 40 | 9.4 m | |
| SOUTH ENGLISH RIVER | Iowa | 1974 | 40 | 12.5 m | |
| BR MINERVA CREEK | Iowa | 1941 | 40 | 11.9 m | |
| SMALL CREEK | Iowa | 1949 | 40 | 7.6 m | |
| MIDDLE RIVER | Iowa | 1981 | 40 | 9.4 m | |
| SOUTH FORK MIDDLE RIVER | Iowa | 1971 | 40 | 9.8 m | |
| TRIB TO MASON CREEK | Iowa | 1977 | 40 | 9.8 m | |
| NISHNA RIVER | Iowa | 1940 | 40 | 76.8 m | |
| SEELY CREEK | Iowa | 1957 | 40 | 16.5 m | |
| TROUBLESOME CREEK | Iowa | 1948 | 40 | 7.6 m | |
| TRIB TO HOLCOMB CREEK | Iowa | 1976 | 40 | 9.8 m | |
| BOONE RIVER | Iowa | 1907 | 40 | 63.1 m | |
| CREEK | Iowa | 1930 | 40 | 6.1 m | |
| DRAINAGE DITCH #2 | Iowa | 1951 | 40 | 9.8 m | |
| WALNUT CREEK | Iowa | 1951 | 40 | 46.6 m | |
| PIGEON CREEK | Iowa | 1920 | 40 | 40.5 m | |
| WILLOW CREEK | Iowa | 1952 | 40 | 46.9 m | |
| LITTLE SIOUX RIVER | Iowa | 1971 | 40 | 96.6 m | |
| MIDDLE CREEK | Iowa | 1965 | 40 | 38.7 m | |
| MIDDLE CREEK | Iowa | 1963 | 40 | 23.5 m | |
| SOLDIER CREEK | Iowa | 1948 | 40 | 64.9 m | |
| WALNUT CR | Iowa | 1977 | 40 | 21.3 m | |
| LITTLE BEAR CREEK | Iowa | 1978 | 40 | 23.8 m | |
| EAST BR INDIAN CREEK | Iowa | 1936 | 40 | 29.6 m | |
| LYTLE CREEK | Iowa | 1986 | 40 | 6.1 m | |
| CREEK | Iowa | 1940 | 40 | 7.3 m | |
| SMALL STREAM | Iowa | 1986 | 40 | 15.5 m | |
| BR ELLIOTT CREEK | Iowa | 1980 | 40 | 10.4 m | |
| UPPER IOWA RIVER | Iowa | 1913 | 39 | 46.3 m | |
| MIDDLE FORK BEAVER CREEK | Iowa | 1948 | 39 | 38.4 m | |
| NORTH BEAR CREEK | Iowa | 1957 | 39 | 9.4 m | |
| CREEK | Iowa | 1900 | 39 | 8.2 m | |
| CREEK | Iowa | 1988 | 39 | 10.4 m | |
| BEAVER CREEK | Iowa | 1984 | 39 | 15.9 m | |
| SOUTH FORK IOWA RIVER | Iowa | 1939 | 39 | 25.9 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.