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 |
|---|---|---|---|---|---|
| PRAIRIE CREEK | Iowa | 1971 | 130 | 25.6 m | |
| BR RAPID CR | Iowa | 1950 | 130 | 13.4 m | |
| BIG CREEK | Iowa | 1929 | 130 | 36.0 m | |
| OTTER CR | Iowa | 1953 | 130 | 61.9 m | |
| BR IOWA RIVER | Iowa | 1935 | 130 | 10.1 m | |
| PAUL CREEK | Iowa | 1957 | 130 | 9.1 m | |
| BEAR CREEK | Iowa | 1979 | 130 | 39.0 m | |
| CREEK | Iowa | 1997 | 130 | 13.7 m | |
| BEAVER CREEK | Iowa | 1949 | 128 | 15.9 m | |
| CREEK | Iowa | 1976 | 128 | 7.6 m | |
| YELLOW RIVER | Iowa | 1954 | 128 | 54.3 m | |
| CREEK | Iowa | 1997 | 128 | 12.8 m | |
| INDIAN CREEK | Iowa | 1937 | 126 | 74.4 m | |
| EAST BOYER RIVER | Iowa | 1967 | 125 | 53.0 m | |
| BOYER RIVER | Iowa | 1900 | 123 | 44.5 m | |
| CREEK | Iowa | 1916 | 123 | 7.6 m | |
| SEVERS CREEK | Iowa | 1951 | 123 | 17.4 m | |
| EAST NISHNABOTNA RIVER | Iowa | 1900 | 123 | 61.3 m | |
| STREAM | Iowa | 1981 | 123 | 16.8 m | |
| CREEK | Iowa | 1972 | 122 | 9.8 m | |
| DRAINAGE | Iowa | 1985 | 121 | 9.8 m | |
| MIDDLE RIVER | Iowa | 1940 | 120 | 29.3 m | |
| MIDDLE RIVER | Iowa | 1940 | 120 | 25.0 m | |
| CARDINAL CREEK | Iowa | 1900 | 120 | 7.3 m | |
| DUCK CREEK | Iowa | 1900 | 120 | 15.5 m | |
| DUCK CREEK | Iowa | 1960 | 120 | 38.7 m | |
| SPRING CREEK | Iowa | 1965 | 120 | 17.4 m | |
| PITMAN CREEK | Iowa | 1975 | 120 | 8.5 m | |
| BEAR CREEK | Iowa | 1959 | 120 | 38.7 m | |
| STREAM | Iowa | 1925 | 120 | 7.9 m | |
| COOPER CREEK | Iowa | 1948 | 120 | 37.8 m | |
| IOWAY CREEK | Iowa | 1900 | 120 | 36.9 m | |
| SS #98 | Iowa | 1973 | 120 | 8.2 m | |
| BEAR CREEK | Iowa | 1955 | 120 | 10.1 m | |
| E FORK GRAND RIVER | Iowa | 1957 | 120 | 62.2 m | |
| MARTINS CR | Iowa | 1972 | 120 | 9.4 m | |
| MOSQUITO CREEK | Iowa | 1920 | 120 | 73.5 m | |
| W FORK GRAND | Iowa | 1967 | 120 | 38.7 m | |
| SKUNK RIVER | Iowa | 1957 | 120 | 199.0 m | |
| BRANCH LITTLE SIOUX RVR | Iowa | 1967 | 120 | 39.0 m | |
| WEST BRANCH FLOYD RIVER | Iowa | 1911 | 120 | 22.3 m | |
| WEST TARKIO RIVER | Iowa | 1952 | 120 | 39.0 m | |
| PLUM CREEK | Iowa | 1954 | 120 | 13.4 m | |
| CREEK | Iowa | 1977 | 120 | 31.7 m | |
| STREAM | Iowa | 1970 | 120 | 23.8 m | |
| RACOON RIVER | Iowa | 1920 | 120 | 52.1 m | |
| PAINT CREEK | Iowa | 1900 | 120 | 47.5 m | |
| LICK CREEK | Iowa | 1951 | 120 | 21.9 m | |
| PLUM CREEK | Iowa | 1954 | 120 | 39.0 m | |
| BR BIG CEDAR CK DD #29 | Iowa | 1966 | 120 | 13.7 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.