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 |
|---|---|---|---|---|---|
| SMALL STREAM | Iowa | 1987 | 29 | 9.8 m | |
| NORTH SKUNK RIVER | Iowa | 1938 | 29 | 9.1 m | |
| WEASEL CK | Iowa | 1957 | 28 | 7.6 m | |
| SMALL | Iowa | 1988 | 27 | 7.9 m | |
| MCCANDLESS CLEGHORN | Iowa | 1976 | 26 | 10.1 m | |
| MINK CREEK | Iowa | 1938 | 26 | 8.8 m | |
| STREAM | Iowa | 1924 | 26 | 10.1 m | |
| SMALL | Iowa | 1983 | 26 | 15.5 m | |
| SMALL STREAM | Iowa | 1927 | 26 | 6.7 m | |
| CREEK | Iowa | 1956 | 26 | 23.8 m | |
| CREEK | Iowa | 1967 | 26 | 12.8 m | |
| BR NISHNABOTNA | Iowa | 1959 | 26 | 7.0 m | |
| E NISHNABOTNA RIVER | Iowa | 1971 | 26 | 27.4 m | |
| DRAINAGE | Iowa | 1958 | 26 | 10.1 m | |
| CREEK | Iowa | 1952 | 26 | 18.3 m | |
| WATERWAY | Iowa | 1955 | 26 | 15.9 m | |
| PLYMOUTH CREEK | Iowa | 1960 | 26 | 18.3 m | |
| BUCK CREEK | Iowa | 1974 | 26 | 32.0 m | |
| STREAM | Iowa | 1900 | 26 | 12.2 m | |
| EAST BIG CREEK | Iowa | 1951 | 26 | 21.6 m | |
| MIDDLE BR WAPSINONOC CR | Iowa | 1950 | 26 | 14.6 m | |
| E FK GRAND RIVER | Iowa | 1961 | 26 | 37.2 m | |
| WESTFIELD CREEK | Iowa | 1951 | 26 | 38.4 m | |
| ROCK RUN CREEK | Iowa | 1930 | 26 | 8.5 m | |
| BR ROCK RUN CR | Iowa | 1900 | 26 | 10.1 m | |
| WILLOW CREEK | Iowa | 1900 | 26 | 14.0 m | |
| ROCK FALLS CREEK | Iowa | 1900 | 26 | 8.8 m | |
| MAPLE RIVER | Iowa | 1900 | 26 | 43.0 m | |
| STREAM | Iowa | 1968 | 26 | 7.9 m | |
| CREEK | Iowa | 1953 | 26 | 6.1 m | |
| KEIGLEY CREEK | Iowa | 1949 | 26 | 12.8 m | |
| DRAINAGE DITCH | Iowa | 1923 | 26 | 12.8 m | |
| BEAR CREEK | Iowa | 1972 | 26 | 19.2 m | |
| WALNUT CREEK | Iowa | 1915 | 26 | 14.3 m | |
| BOONE RIVER | Iowa | 1924 | 26 | 55.5 m | |
| GOOSE CREEK | Iowa | 1975 | 26 | 10.1 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 | |
| SMALL STREAM | Iowa | 1986 | 26 | 12.8 m | |
| CREEK | Iowa | 1986 | 26 | 14.3 m | |
| HONEY CREEK | Iowa | 1986 | 26 | 18.3 m | |
| WEST FORK CROOKED CREEK | Iowa | 1949 | 26 | 14.3 m | |
| TILTON CREEK | Iowa | 1981 | 26 | 10.4 m | |
| DRAINAGE | Iowa | 1976 | 26 | 13.7 m | |
| PIGEON CREEK | Iowa | 1955 | 26 | 18.3 m | |
| BRANCH SUGAR CREEK | Iowa | 1922 | 26 | 7.9 m | |
| LITTLE WAPSIPINICON RVR | Iowa | 1984 | 26 | 14.3 m | |
| SMALL STREAM | Iowa | 1940 | 26 | 11.9 m | |
| UPPER IOWA RIVER | Iowa | 1880 | 26 | 34.7 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.