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 |
|---|---|---|---|---|---|
| BNSF RR | Iowa | 1937 | 1,090 | 98.1 m | |
| OPOSSUM CREEK | Iowa | 1959 | 1,090 | 6.7 m | |
| OPOSSUM CREEK | Iowa | 1959 | 1,090 | 6.7 m | |
| RALSTON CREEK | Iowa | 1935 | 1,082 | 8.5 m | |
| LITTLE SIOUX RIVER | Iowa | 1979 | 1,076 | 62.2 m | |
| DRAINAGE | Iowa | 1900 | 1,073 | 31.7 m | |
| S COPPER CREEK | Iowa | 1974 | 1,070 | 16.8 m | |
| SMALL NATURAL STREAM | Iowa | 1967 | 1,070 | 28.0 m | |
| KEG CREEK | Iowa | 1967 | 1,065 | 54.0 m | |
| BR ROBINSON CREEK | Iowa | 1922 | 1,061 | 7.3 m | |
| CREEK | Iowa | 1923 | 1,060 | 10.1 m | |
| WALNUT CREEK | Iowa | 1973 | 1,060 | 84.1 m | |
| WALNUT CREEK | Iowa | 1949 | 1,060 | 31.7 m | |
| DRAINAGE | Iowa | 1915 | 1,054 | 6.7 m | |
| DRAINAGE DITCH | Iowa | 1927 | 1,051 | 8.8 m | |
| BIG CEDAR CREEK | Iowa | 1956 | 1,050 | 77.4 m | |
| S BR DRY RUN | Iowa | 1900 | 1,049 | 9.1 m | |
| BADGER CREEK | Iowa | 1968 | 1,043 | 23.5 m | |
| IOWA RIVER | Iowa | 1957 | 1,041 | 51.8 m | |
| LONG DICK CREEK | Iowa | 1964 | 1,028 | 26.8 m | |
| BUTLER CREEK | Iowa | 1907 | 1,027 | 23.5 m | |
| KNOTTY CREEK | Iowa | 1980 | 1,019 | 35.4 m | |
| DEER CREEK | Iowa | 1982 | 1,019 | 48.5 m | |
| BIG SIOUX RIVER | Iowa | 1977 | 1,017 | 122.5 m | |
| KLONDIKE CREEK | Iowa | 1962 | 1,017 | 24.4 m | |
| SMALL NATURAL STREAM | Iowa | 1925 | 1,011 | 7.6 m | |
| CREEK | Iowa | 1964 | 1,010 | 33.5 m | |
| SMALL STREAM | Iowa | 1966 | 1,002 | 23.5 m | |
| BUCKEYE CREEK | Iowa | 1976 | 1,002 | 25.3 m | |
| OTTER CREEK | Iowa | 1951 | 996 | 56.4 m | |
| MIDDLE RIVER | Iowa | 1959 | 996 | 47.9 m | |
| LITTLE MOSQUITO CREEK | Iowa | 1964 | 990 | 31.1 m | |
| CEDAR RIVER | Iowa | 1966 | 990 | 321.3 m | |
| EAST OTTER CREEK | Iowa | 1962 | 982 | 9.8 m | |
| SMALL STREAM | Iowa | 1978 | 977 | 7.6 m | |
| IOWA RIVER | Iowa | 1965 | 977 | 46.6 m | |
| BOONE RIVER | Iowa | 1951 | 977 | 73.8 m | |
| ELLIOT CREEK | Iowa | 1957 | 977 | 46.9 m | |
| CAMP CREEK | Iowa | 1978 | 977 | 39.0 m | |
| ROCK RIVER | Iowa | 1966 | 977 | 84.7 m | |
| N. SKUNK RIVER | Iowa | 1964 | 970 | 46.6 m | |
| DES MOINES RIVER | Iowa | 1960 | 970 | 285.6 m | |
| EAGLE CREEK | Iowa | 1951 | 966 | 46.3 m | |
| SMALL STREAM | Iowa | 1967 | 962 | 7.9 m | |
| VOLGA RIVER | Iowa | 1963 | 959 | 67.1 m | |
| TROUT RIVER | Iowa | 1956 | 953 | 52.7 m | |
| CEDAR RIVER | Iowa | 1971 | 950 | 213.1 m | |
| VILLAGE CREEK | Iowa | 1961 | 950 | 31.1 m | |
| SMALL STREAM | Iowa | 1925 | 940 | 13.7 m | |
| INDIAN CREEK | Iowa | 1969 | 938 | 31.4 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.