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 |
|---|---|---|---|---|---|
| BRANCH BLACKHAWK CREEK | Iowa | 1971 | 26 | 21.3 m | |
| SMALL STREAM | Iowa | 1983 | 26 | 9.8 m | |
| SPRING CREEK | Iowa | 1920 | 26 | 10.1 m | |
| RACCOON RIVER | Iowa | 1930 | 26 | 28.0 m | |
| CAMP CREEK | Iowa | 1914 | 26 | 16.2 m | |
| LIZARD CREEK | Iowa | 1957 | 26 | 21.3 m | |
| SOUTH RACCOON | Iowa | 1957 | 26 | 38.7 m | |
| BRANCH COAL CREEK | Iowa | 1960 | 26 | 12.2 m | |
| STREAM | Iowa | 1940 | 26 | 18.9 m | |
| SMALL CREEK | Iowa | 1920 | 26 | 9.4 m | |
| STREAM | Iowa | 1981 | 26 | 13.7 m | |
| SMALL | Iowa | 1979 | 26 | 12.2 m | |
| SMALL | Iowa | 1980 | 26 | 9.4 m | |
| SMALL CREEK | Iowa | 1934 | 26 | 21.9 m | |
| SMALL STREAM | Iowa | 1984 | 26 | 10.7 m | |
| FLANK CREEK | Iowa | 1963 | 26 | 17.1 m | |
| KEIGLEY CREEK | Iowa | 1949 | 26 | 12.8 m | |
| DRAINAGE DITCH | Iowa | 1923 | 26 | 12.8 m | |
| BOONE RIVER | Iowa | 1924 | 26 | 55.5 m | |
| CREEK | Iowa | 1900 | 26 | 13.4 m | |
| WEST IOWA RIVER | Iowa | 1957 | 26 | 29.0 m | |
| BOONE RIVER | Iowa | 1967 | 26 | 17.7 m | |
| WEST IOWA RIVER | Iowa | 1956 | 26 | 13.7 m | |
| CREEK | Iowa | 1986 | 26 | 14.3 m | |
| HONEY CREEK | Iowa | 1986 | 26 | 18.3 m | |
| TILTON CREEK | Iowa | 1981 | 26 | 10.4 m | |
| CREEK | Iowa | 1947 | 26 | 23.5 m | |
| DRAINAGE | Iowa | 1976 | 26 | 13.7 m | |
| JORDAN CREEK | Iowa | 1967 | 26 | 23.8 m | |
| STREAM | Iowa | 1940 | 26 | 16.8 m | |
| WALNUT CREEK | Iowa | 1953 | 26 | 18.9 m | |
| E BRANCH W. NISH. RIVER | Iowa | 1920 | 26 | 44.5 m | |
| PIGEON CREEK | Iowa | 1955 | 26 | 18.3 m | |
| SMALL STREAM | Iowa | 1927 | 26 | 6.7 m | |
| CREEK | Iowa | 1967 | 26 | 17.4 m | |
| BRANCH SUGAR CREEK | Iowa | 1922 | 26 | 7.9 m | |
| LITTLE WAPSIPINICON RVR | Iowa | 1984 | 26 | 14.3 m | |
| UPPER IOWA RIVER | Iowa | 1880 | 26 | 34.7 m | |
| CREEK | Iowa | 1952 | 26 | 18.3 m | |
| BRANCH N SKUNK RIVER | Iowa | 1940 | 26 | 7.0 m | |
| STREAM | Iowa | 1900 | 26 | 12.2 m | |
| CLEAR CREEK | Iowa | 1941 | 26 | 11.9 m | |
| SMALL STREAM | Iowa | 1976 | 26 | 9.4 m | |
| MINERVA CR | Iowa | 1949 | 26 | 13.1 m | |
| MINERVA CR | Iowa | 1950 | 26 | 12.8 m | |
| BR MINERVA CR | Iowa | 1984 | 26 | 7.9 m | |
| MUD CREEK | Iowa | 1985 | 26 | 11.3 m | |
| HUNTERS BRANCH | Iowa | 1965 | 26 | 24.7 m | |
| INDIAN CREEK | Iowa | 1940 | 26 | 24.7 m | |
| MUD CREEK | Iowa | 1940 | 26 | 30.5 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.