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 |
|---|---|---|---|---|---|
| CREEK | Iowa | 1965 | 31 | 9.8 m | |
| STREAM | Iowa | 1977 | 31 | 18.0 m | |
| BRADLEY CR | Iowa | 1915 | 31 | 9.8 m | |
| SOUTH FORK ENGLISH RIVER | Iowa | 1960 | 31 | 36.6 m | |
| STREAM | Iowa | 1948 | 30 | 9.4 m | |
| WALNUT CREEK | Iowa | 1925 | 30 | 21.9 m | |
| DAVIDS CREEK | Iowa | 1970 | 30 | 54.0 m | |
| DAVIDS CREEK | Iowa | 1964 | 30 | 31.1 m | |
| SMALL | Iowa | 1977 | 30 | 7.9 m | |
| STREAM | Iowa | 1954 | 30 | 12.8 m | |
| CREEK | Iowa | 1964 | 30 | 30.2 m | |
| CREEK | Iowa | 1941 | 30 | 14.3 m | |
| STREAM | Iowa | 1965 | 30 | 12.2 m | |
| TROUBLESOME CREEK | Iowa | 1979 | 30 | 28.7 m | |
| WATERWAY | Iowa | 1958 | 30 | 9.8 m | |
| MINERVA CR | Iowa | 1946 | 30 | 34.1 m | |
| MOON CREEK | Iowa | 1952 | 30 | 23.5 m | |
| BUCK CREEK | Iowa | 1900 | 30 | 39.0 m | |
| BR LINN CR | Iowa | 1942 | 30 | 7.0 m | |
| DEEP RIVER | Iowa | 1949 | 30 | 12.8 m | |
| STREAM | Iowa | 1948 | 30 | 7.9 m | |
| CREEK | Iowa | 1940 | 30 | 12.5 m | |
| ROCK CREEK | Iowa | 1915 | 30 | 9.1 m | |
| BUCK CREEK | Iowa | 1976 | 30 | 15.2 m | |
| SMALL CREEK | Iowa | 1919 | 30 | 8.5 m | |
| MAPLE RIVER | Iowa | 1919 | 30 | 20.7 m | |
| DRAINAGE | Iowa | 1964 | 30 | 9.8 m | |
| SOUTH ENGLISH RIVER | Iowa | 1990 | 30 | 10.7 m | |
| LITTLE SOAP CREEK | Iowa | 1930 | 30 | 25.3 m | |
| LONG DICK CREEK | Iowa | 1924 | 30 | 13.7 m | |
| WOLF CREEK | Iowa | 1958 | 30 | 19.2 m | |
| DRAINAGE DITCH | Iowa | 1923 | 30 | 15.2 m | |
| DRAINAGE DITCH | Iowa | 1919 | 30 | 9.8 m | |
| BRANCH OTTER CREEK | Iowa | 1970 | 30 | 12.2 m | |
| MINERVA CREEK | Iowa | 1984 | 30 | 15.9 m | |
| TIPTON CREEK | Iowa | 1984 | 30 | 21.3 m | |
| HONEY CREEK | Iowa | 1988 | 30 | 18.0 m | |
| FLANK CREEK | Iowa | 1965 | 30 | 9.8 m | |
| FLANK CR | Iowa | 1955 | 30 | 16.8 m | |
| NORTH ENGLISH RIVER | Iowa | 1983 | 30 | 12.5 m | |
| MINERVA CR | Iowa | 1919 | 30 | 18.9 m | |
| LINN CREEK | Iowa | 1919 | 30 | 10.1 m | |
| BUCK CREEK | Iowa | 1974 | 30 | 7.6 m | |
| BERRY BRANCH | Iowa | 1974 | 30 | 12.5 m | |
| LYNN CREEK | Iowa | 1974 | 30 | 13.1 m | |
| FELTERS BRANCH | Iowa | 1953 | 30 | 13.7 m | |
| TURKEY RIVER | Iowa | 1986 | 30 | 9.8 m | |
| VILLAGE CREEK | Iowa | 2000 | 30 | 18.3 m | |
| NORTH TURKEY | Iowa | 1966 | 30 | 10.4 m | |
| DM RIVER | Iowa | 1905 | 30 | 66.1 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.