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.