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 |
|---|---|---|---|---|---|
| STREAM | Iowa | 1966 | 5 | 11.9 m | |
| DRAINAGE #10 | Iowa | 1920 | 5 | 21.6 m | |
| MAIN DITCH | Iowa | 1981 | 5 | 12.2 m | |
| WALNUT CREEK | Iowa | 1961 | 5 | 28.0 m | |
| MINOR DRAINAGE | Iowa | 1971 | 5 | 7.3 m | |
| DEER CREEK | Iowa | 1962 | 5 | 27.7 m | |
| MCPHERSON CREEK | Iowa | 1979 | 5 | 36.9 m | |
| BRANCH WOLF CREEK | Iowa | 1914 | 5 | 11.6 m | |
| STREAM | Iowa | 1930 | 5 | 7.3 m | |
| STREAM | Iowa | 1940 | 5 | 20.4 m | |
| STREAM | Iowa | 1940 | 5 | 14.6 m | |
| DRAINAGE DITCH | Iowa | 1925 | 5 | 10.1 m | |
| CREEK | Iowa | 1985 | 5 | 15.9 m | |
| ALLEN CREEK | Iowa | 1986 | 5 | 14.6 m | |
| STEER CREEK | Iowa | 1969 | 5 | 22.3 m | |
| SMALL STREAM | Iowa | 1960 | 5 | 28.0 m | |
| S BR BIG CREEK | Iowa | 1996 | 5 | 21.3 m | |
| CREEK | Iowa | 1964 | 5 | 10.7 m | |
| SILVER CREEK | Iowa | 1983 | 5 | 35.4 m | |
| WEST FORK BATTLE CREEK | Iowa | 1963 | 5 | 13.4 m | |
| SMALL STREAM | Iowa | 1969 | 5 | 11.6 m | |
| STREAM | Iowa | 1940 | 5 | 13.1 m | |
| STREAM | Iowa | 1940 | 5 | 13.1 m | |
| WALNUT CREEK | Iowa | 1945 | 5 | 13.1 m | |
| BRUSH CREEK | Iowa | 1988 | 5 | 7.0 m | |
| SMALL STREAM | Iowa | 1976 | 5 | 6.7 m | |
| TROY CREEK | Iowa | 1915 | 5 | 25.0 m | |
| BR.WALNUT CREEK | Iowa | 1926 | 5 | 6.4 m | |
| BR OLD MANS CR | Iowa | 1915 | 5 | 9.8 m | |
| PRAIRIE CREEK | Iowa | 1986 | 5 | 18.5 m | |
| PRAIRIE CREEK | Iowa | 1986 | 5 | 18.4 m | |
| MIDDLE BRANCH BLUE EARTH | Iowa | 1967 | 5 | 17.3 m | |
| DD #185 | Iowa | 1900 | 5 | 14.4 m | |
| W BR BLUE EARTH RIVER | Iowa | 1980 | 5 | 19.0 m | |
| HONEY CREEK | Iowa | 1928 | 5 | 13.7 m | |
| HONEY CREEK | Iowa | 1951 | 5 | 7.3 m | |
| DR TO HONEY CREEK | Iowa | 1900 | 5 | 7.3 m | |
| CARRUTHERS CREEK | Iowa | 1940 | 5 | 17.7 m | |
| BR OF ENGLISH CREEK | Iowa | 1939 | 5 | 11.3 m | |
| STONY CREEK | Iowa | 1965 | 5 | 39.6 m | |
| STONY FORK | Iowa | 1951 | 5 | 7.3 m | |
| STONY FORK | Iowa | 1999 | 5 | 10.1 m | |
| S OTTER CREEK | Iowa | 1970 | 5 | 23.2 m | |
| JOHNSON CREEK | Iowa | 1900 | 5 | 19.2 m | |
| N CLANTON CREEK | Iowa | 1895 | 5 | 19.2 m | |
| DRAINAGE | Iowa | 1956 | 5 | 8.2 m | |
| PLEASANT CREEK | Iowa | 1956 | 5 | 17.4 m | |
| DRAINAGE | Iowa | 1900 | 5 | 6.4 m | |
| NORTH TIMBER CREEK | Iowa | 1950 | 5 | 19.2 m | |
| BURNETT CR | Iowa | 1917 | 5 | 11.0 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.