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 |
|---|---|---|---|---|---|
| BR.SOUTH RIVER | Iowa | 1940 | 11 | 26.8 m | |
| BRANCH SOUTH RIVER | Iowa | 1973 | 11 | 22.6 m | |
| SM STREAM | Iowa | 1934 | 11 | 9.1 m | |
| SOUTH FORK LONG CREEK | Iowa | 1914 | 11 | 32.0 m | |
| SMALL STREAM | Iowa | 1917 | 11 | 9.8 m | |
| DAVIS CREEK | Iowa | 1980 | 11 | 12.5 m | |
| STREAM | Iowa | 1980 | 11 | 22.9 m | |
| STREAM | Iowa | 1975 | 11 | 10.4 m | |
| DD | Iowa | 1959 | 11 | 7.6 m | |
| PIKE RUN | Iowa | 1976 | 11 | 29.6 m | |
| N BUFFALO CREEK | Iowa | 1949 | 11 | 18.9 m | |
| CREEK | Iowa | 1971 | 11 | 9.1 m | |
| CREEK | Iowa | 1900 | 11 | 10.4 m | |
| CREEK | Iowa | 1913 | 11 | 10.4 m | |
| SMALL | Iowa | 1978 | 11 | 7.3 m | |
| FARMERS DITCH | Iowa | 1980 | 11 | 44.8 m | |
| SMALL STREAM | Iowa | 1985 | 11 | 11.9 m | |
| WOLF CREEK | Iowa | 1938 | 11 | 11.9 m | |
| W FK LITTLE SIOUX RIVER | Iowa | 1935 | 11 | 34.1 m | |
| WRIGHT CREEK | Iowa | 1950 | 11 | 13.1 m | |
| WRIGHT CREEK | Iowa | 1950 | 11 | 34.1 m | |
| STREAM | Iowa | 1965 | 11 | 34.1 m | |
| STREAM | Iowa | 1997 | 11 | 14.9 m | |
| STREAM | Iowa | 1955 | 11 | 21.0 m | |
| STREAM | Iowa | 1900 | 11 | 12.2 m | |
| WHITE FOX CREEK | Iowa | 1941 | 11 | 24.7 m | |
| DRAINAGE DITCH 9 | Iowa | 1920 | 11 | 9.1 m | |
| DRAINAGE DITCH 111 | Iowa | 1900 | 11 | 7.3 m | |
| EAGLE CREEK | Iowa | 1979 | 11 | 11.3 m | |
| OTTER CREEK | Iowa | 1969 | 11 | 21.0 m | |
| DD #219 | Iowa | 1972 | 11 | 21.0 m | |
| WEST BRANCH IOWA RIVER | Iowa | 1919 | 11 | 23.5 m | |
| STREAM | Iowa | 1981 | 11 | 11.3 m | |
| BR OF CARRUTHERS CREEK | Iowa | 1900 | 11 | 7.0 m | |
| DRAINAGE DITCH | Iowa | 1983 | 11 | 13.4 m | |
| MILL CREEK | Iowa | 1940 | 11 | 6.7 m | |
| STREAM | Iowa | 1982 | 11 | 9.1 m | |
| SMALL STREAM | Iowa | 1950 | 11 | 6.1 m | |
| BRANCH NAGEL CREEK | Iowa | 1935 | 11 | 15.9 m | |
| WEST OTTER CREEK | Iowa | 1987 | 11 | 7.3 m | |
| SMALL STREAM | Iowa | 1900 | 11 | 25.0 m | |
| SOUTH WEST CREEK | Iowa | 1900 | 11 | 37.8 m | |
| SMALL STREAM | Iowa | 1900 | 11 | 11.6 m | |
| STREAM | Iowa | 1900 | 11 | 6.7 m | |
| SMALL STREAM | Iowa | 1900 | 11 | 12.8 m | |
| STREAM | Iowa | 1900 | 11 | 7.0 m | |
| STREAM | Iowa | 1950 | 11 | 14.0 m | |
| PITCHER 153 | Iowa | 1900 | 11 | 6.7 m | |
| DRAINAGE | Iowa | 1972 | 11 | 9.1 m | |
| VILLAGE CREEK | Iowa | 1900 | 10 | 25.3 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.