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 |
|---|---|---|---|---|---|
| EAST BRANCH IA RIVER | Iowa | 1958 | 11 | 13.7 m | |
| DD | Iowa | 1959 | 11 | 7.6 m | |
| IA RIVER | Iowa | 1965 | 11 | 29.6 m | |
| KEG CREEK | Iowa | 1900 | 11 | 17.7 m | |
| PIGEON CREEK | Iowa | 1960 | 11 | 32.3 m | |
| SIX MILE CREEK | Iowa | 1930 | 11 | 34.7 m | |
| ALLEN CREEK | Iowa | 1965 | 11 | 18.3 m | |
| LITTLE PIGEON | Iowa | 1930 | 11 | 28.3 m | |
| WILLOW RIVER | Iowa | 1930 | 11 | 50.6 m | |
| ALLEN CREEK | Iowa | 1957 | 11 | 18.6 m | |
| BRANCH BIG CREEK | Iowa | 1977 | 11 | 9.1 m | |
| BRANCH BIG CREEK | Iowa | 1985 | 11 | 10.7 m | |
| WILLIAMS CREEK | Iowa | 1966 | 11 | 12.5 m | |
| SMALL STREAM | Iowa | 1917 | 11 | 9.8 m | |
| STREAM | Iowa | 1943 | 11 | 10.1 m | |
| STREAM | Iowa | 1957 | 11 | 7.6 m | |
| STREAM | Iowa | 1958 | 11 | 9.8 m | |
| SMALL STREAM | Iowa | 1924 | 11 | 26.2 m | |
| STREAM | Iowa | 1932 | 11 | 9.1 m | |
| SMALL STREAM | Iowa | 1953 | 11 | 8.8 m | |
| SMALL STREAM | Iowa | 1916 | 11 | 7.3 m | |
| SMALL STREAM | Iowa | 1950 | 11 | 22.6 m | |
| KEG CREEK | Iowa | 1969 | 11 | 25.0 m | |
| SMALL STREAM | Iowa | 1938 | 11 | 22.9 m | |
| SMALL | Iowa | 1965 | 11 | 10.7 m | |
| SKUNK RIVER | Iowa | 1876 | 11 | 49.7 m | |
| SALT CREEK | Iowa | 1982 | 11 | 43.9 m | |
| BRANCH IOWA RIVER | Iowa | 1983 | 11 | 9.8 m | |
| RICHLAND CREEK | Iowa | 1991 | 11 | 24.4 m | |
| BRANCH OF RICHLAND CREEK | Iowa | 1988 | 11 | 12.5 m | |
| WOLF CREEK | Iowa | 1895 | 11 | 36.6 m | |
| FOUR MILE CREEK | Iowa | 1988 | 11 | 8.2 m | |
| PLATTE DRAINAGE DITCH | Iowa | 1964 | 11 | 60.4 m | |
| HONEY CREEK | Iowa | 1958 | 11 | 25.0 m | |
| SMALL | Iowa | 1979 | 11 | 26.8 m | |
| SMALL STREAM | Iowa | 1974 | 11 | 21.0 m | |
| BRANCH OF EAST 102 RIVER | Iowa | 1953 | 11 | 9.8 m | |
| WEST BRANCH 102 | Iowa | 1971 | 11 | 35.4 m | |
| MIDDLE 102 RIVER | Iowa | 1949 | 11 | 27.4 m | |
| STREAM | Iowa | 1975 | 11 | 10.4 m | |
| CREEK | Iowa | 1953 | 11 | 9.8 m | |
| MIDDLE 102 RIVER | Iowa | 1972 | 11 | 29.3 m | |
| WEST 102 RIVER | Iowa | 1965 | 11 | 25.9 m | |
| WEST 102 RIVER | Iowa | 1955 | 11 | 30.5 m | |
| STREAM | Iowa | 1900 | 11 | 9.8 m | |
| STREAM | Iowa | 1992 | 11 | 24.4 m | |
| SMALL STREAM | Iowa | 1990 | 11 | 11.9 m | |
| BRANCH EAST PLATTE | Iowa | 1978 | 11 | 12.2 m | |
| MIDDLE PLATTE RIVER | Iowa | 1970 | 11 | 28.0 m | |
| PLATTE RIVER | Iowa | 1989 | 11 | 15.9 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.