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 |
|---|---|---|---|---|---|
| WEST CROW CREEK | Iowa | 1954 | 2,100 | 31.1 m | |
| STONY CREEK | Iowa | 1954 | 2,080 | 31.1 m | |
| CREEK | Iowa | 1941 | 2,060 | 9.1 m | |
| IOWA RIVER | Iowa | 1971 | 2,060 | 106.1 m | |
| WAPSIPINICON RIVER | Iowa | 1951 | 2,033 | 136.6 m | |
| INDIAN CREEK | Iowa | 1937 | 2,027 | 105.5 m | |
| INDIAN CREEK | Iowa | 1937 | 2,027 | 74.4 m | |
| DRY CREEK | Iowa | 1951 | 2,012 | 17.4 m | |
| LITTLE FLINT RIVER | Iowa | 1968 | 2,000 | 25.0 m | |
| BUCK CREEK | Iowa | 1969 | 2,000 | 31.4 m | |
| SMALL STREAM | Iowa | 1969 | 2,000 | 31.1 m | |
| EAST BOYER RIVER | Iowa | 1958 | 1,951 | 62.5 m | |
| BLACKHAWK CREEK | Iowa | 1971 | 1,935 | 39.0 m | |
| PANTHER CREEK | Iowa | 1966 | 1,930 | 55.8 m | |
| OVRFLW SHELL ROCK RIVER | Iowa | 1900 | 1,902 | 21.9 m | |
| SHELLROCK RIVER | Iowa | 1950 | 1,868 | 37.8 m | |
| CEDAR RIVER | Iowa | 1966 | 1,860 | 252.1 m | |
| OVER UP RR | Iowa | 1935 | 1,846 | 44.5 m | |
| SPRING CREEK | Iowa | 1963 | 1,806 | 23.8 m | |
| DRAINAGE | Iowa | 1977 | 1,795 | 10.1 m | |
| E BR WAPSINONOC CREEK | Iowa | 1920 | 1,770 | 18.3 m | |
| DRY CREEK | Iowa | 1972 | 1,755 | 30.5 m | |
| PONY CREEK | Iowa | 1966 | 1,733 | 61.0 m | |
| NORTH RIVER | Iowa | 1960 | 1,714 | 77.4 m | |
| BR BADGER CREEK | Iowa | 1970 | 1,714 | 13.4 m | |
| SPENCER CREEK | Iowa | 1972 | 1,700 | 20.4 m | |
| STREAM | Iowa | 1952 | 1,676 | 7.3 m | |
| BACON CREEK | Iowa | 1900 | 1,664 | 6.4 m | |
| ROCK CREEK | Iowa | 1967 | 1,660 | 32.6 m | |
| I 80 | Iowa | 1959 | 1,654 | 69.2 m | |
| N FORK MAQUOKETA RIVER | Iowa | 1967 | 1,651 | 38.1 m | |
| WILLIAMS CREEK | Iowa | 1936 | 1,650 | 18.3 m | |
| OVERFLOW FROM SUGAR CRK | Iowa | 1971 | 1,640 | 39.0 m | |
| ODEBOLT CREEK | Iowa | 1972 | 1,635 | 54.6 m | |
| STREAM | Iowa | 1953 | 1,630 | 114.9 m | |
| DRAINAGE DITCH | Iowa | 1953 | 1,630 | 93.6 m | |
| DRAINAGE DITCH | Iowa | 1953 | 1,630 | 114.9 m | |
| CEDAR RIVER | Iowa | 1912 | 1,610 | 201.2 m | |
| MUD CREEK | Iowa | 1972 | 1,600 | 39.0 m | |
| PINE CREEK | Iowa | 1955 | 1,600 | 7.6 m | |
| MUD CREEK | Iowa | 1971 | 1,580 | 47.2 m | |
| RACCOON RIVER | Iowa | 1947 | 1,572 | 101.8 m | |
| SMALL NATURAL STREAM | Iowa | 1958 | 1,561 | 17.7 m | |
| STREAM | Iowa | 1970 | 1,544 | 76.8 m | |
| TRIB TO INDIAN CREEK | Iowa | 1957 | 1,532 | 7.6 m | |
| SMALL STREAM | Iowa | 1949 | 1,530 | 10.7 m | |
| PONY CREEK | Iowa | 1969 | 1,524 | 7.3 m | |
| NISHNABOTNA RIVER | Iowa | 1961 | 1,524 | 77.1 m | |
| WAPSINONOC CREEK | Iowa | 1981 | 1,510 | 39.0 m | |
| OTTER CREEK | Iowa | 1971 | 1,501 | 37.5 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.