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 |
|---|---|---|---|---|---|
| MILLER CREEK | Iowa | 1965 | 255 | 38.1 m | |
| TRIB W FORK CEDAR RIVER | Iowa | 1966 | 255 | 9.1 m | |
| LITTLE TURKEY RIVER | Iowa | 1960 | 255 | 54.4 m | |
| DEVIL CREEK | Iowa | 1948 | 250 | 46.6 m | |
| VILLAGE CREEK | Iowa | 1968 | 250 | 38.7 m | |
| BEAVER CREEK | Iowa | 1960 | 250 | 31.4 m | |
| LONG CREEK | Iowa | 1963 | 250 | 46.9 m | |
| NO NAME CREEK | Iowa | 1925 | 249 | 8.5 m | |
| CREEK | Iowa | 1976 | 249 | 10.4 m | |
| OVERFLOW ON BOYER RIVER | Iowa | 1964 | 249 | 23.8 m | |
| FRINK CREEK | Iowa | 1937 | 246 | 13.7 m | |
| WINNEBAGO RIVER | Iowa | 1975 | 245 | 32.6 m | |
| COOPER CREEK | Iowa | 1959 | 244 | 32.6 m | |
| DRAINAGE | Iowa | 1920 | 242 | 6.7 m | |
| SMALL CREEK | Iowa | 1959 | 242 | 13.4 m | |
| SMALL STREAM | Iowa | 1972 | 240 | 7.3 m | |
| SMALL STREAM | Iowa | 1960 | 240 | 39.6 m | |
| DRY BRANCH | Iowa | 1970 | 240 | 34.7 m | |
| BACKWATER (PUMP STATION) | Iowa | 1972 | 240 | 10.7 m | |
| CREEK | Iowa | 1957 | 240 | 23.8 m | |
| DD NO 70 | Iowa | 1974 | 240 | 23.8 m | |
| STREAM | Iowa | 1964 | 240 | 9.1 m | |
| ELK CREEK | Iowa | 1958 | 240 | 54.3 m | |
| STREAM | Iowa | 1959 | 236 | 9.4 m | |
| DRAINAGE DITCH | Iowa | 1972 | 236 | 9.4 m | |
| MAYNES CREEK | Iowa | 1971 | 236 | 58.5 m | |
| INDIAN CREEK | Iowa | 1930 | 235 | 13.7 m | |
| STREAM | Iowa | 1966 | 234 | 13.7 m | |
| DRAINAGE | Iowa | 1900 | 232 | 11.0 m | |
| RIO GRANDE CREEK | Iowa | 1940 | 232 | 7.0 m | |
| DRAINAGE | Iowa | 1940 | 232 | 6.4 m | |
| DRAINAGE | Iowa | 1900 | 232 | 9.4 m | |
| DRAINAGE | Iowa | 1900 | 232 | 6.4 m | |
| LITTLE BIG CREEK | Iowa | 1915 | 232 | 8.5 m | |
| BR BIG CEDAR CK DD#21 | Iowa | 1975 | 230 | 23.8 m | |
| DRAINAGE DITCH | Iowa | 1960 | 230 | 39.9 m | |
| WEST RAT CREEK | Iowa | 1965 | 230 | 13.1 m | |
| GRANT 5 OPEN DITCH | Iowa | 1938 | 230 | 10.1 m | |
| SOUTH LIZARD CREEK | Iowa | 1975 | 230 | 39.0 m | |
| LITTLE ROCK RIVER | Iowa | 1960 | 230 | 62.8 m | |
| CROOKED CREEK | Iowa | 1923 | 230 | 12.2 m | |
| I-29 | Iowa | 1958 | 229 | 68.9 m | |
| HAITZ DD | Iowa | 1961 | 229 | 51.5 m | |
| DRAINAGE DITCH 110 | Iowa | 1963 | 229 | 9.8 m | |
| WEST FORK DD | Iowa | 1961 | 229 | 63.4 m | |
| TIMBER CREEK | Iowa | 1977 | 227 | 32.0 m | |
| SPRING CR | Iowa | 1967 | 227 | 23.5 m | |
| DRAINAGE | Iowa | 1945 | 226 | 15.2 m | |
| WALNUT CREEK | Iowa | 1971 | 226 | 8.2 m | |
| DRY RUN CREEK | Iowa | 1977 | 226 | 39.3 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.