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 |
|---|---|---|---|---|---|
| SMALL STREAM | Iowa | 1934 | 289 | 10.7 m | |
| BRANCH OTTER CREEK | Iowa | 1970 | 288 | 10.7 m | |
| WOLF CREEK BRANCH | Iowa | 1972 | 285 | 17.7 m | |
| SHELL ROCK RIVER | Iowa | 1963 | 285 | 136.6 m | |
| WAPSIPINICON RIVER | Iowa | 1968 | 285 | 8.2 m | |
| FLINT RIVER | Iowa | 1941 | 280 | 37.2 m | |
| BOYER RIVER | Iowa | 1964 | 280 | 31.4 m | |
| WILLOW CREEK | Iowa | 1964 | 279 | 13.4 m | |
| TRIB. OF BEAVER CREEK | Iowa | 1948 | 279 | 7.3 m | |
| CAMP CK | Iowa | 1973 | 279 | 39.0 m | |
| SMALL STREAM | Iowa | 1968 | 278 | 23.2 m | |
| NORTH ELK CREEK | Iowa | 1939 | 278 | 46.9 m | |
| SMALL NATURAL STREAM | Iowa | 1939 | 278 | 6.4 m | |
| SMALL | Iowa | 1973 | 275 | 17.7 m | |
| PLUM CREEK | Iowa | 1949 | 275 | 12.8 m | |
| DRAINAGE | Iowa | 1955 | 275 | 19.5 m | |
| DEER CREEK | Iowa | 1954 | 275 | 54.3 m | |
| BLACKHAWK CREEK BRANCH | Iowa | 1965 | 275 | 13.4 m | |
| BRUSH CREEK | Iowa | 1957 | 275 | 38.7 m | |
| CREEK | Iowa | 1972 | 275 | 22.9 m | |
| CRANE CREEK | Iowa | 1971 | 275 | 11.0 m | |
| QUARTER SEC RUN | Iowa | 1939 | 275 | 56.1 m | |
| DRAINAGE | Iowa | 1964 | 270 | 30.5 m | |
| SMALL STREAM | Iowa | 1925 | 270 | 6.7 m | |
| SUGAR CREEK | Iowa | 1950 | 270 | 21.0 m | |
| LITTLE SIOUX RIVER | Iowa | 1966 | 270 | 53.3 m | |
| ROCK CREEK | Iowa | 1964 | 270 | 15.2 m | |
| INDIAN CREEK | Iowa | 1957 | 270 | 32.9 m | |
| STREAM | Iowa | 1981 | 270 | 19.2 m | |
| BIG CREEK | Iowa | 1964 | 270 | 43.3 m | |
| CREEK | Iowa | 1983 | 269 | 12.2 m | |
| HURTZEL RUN | Iowa | 1900 | 269 | 9.8 m | |
| LIZARD CREEK | Iowa | 1968 | 268 | 10.1 m | |
| MUD CREEK | Iowa | 1967 | 265 | 21.3 m | |
| BEAVER CREEK BRANCH | Iowa | 1932 | 265 | 6.4 m | |
| BIG MINERVA CREEK | Iowa | 1967 | 265 | 46.6 m | |
| LITTLE WAPSIPINICON RVR | Iowa | 1961 | 265 | 51.8 m | |
| DD #2 & 36 | Iowa | 1974 | 264 | 9.1 m | |
| STREAM | Iowa | 1956 | 260 | 7.0 m | |
| ASHTON CREEK | Iowa | 1974 | 260 | 31.1 m | |
| NORTH RIVER | Iowa | 1962 | 260 | 77.4 m | |
| CARTERS CREEK | Iowa | 1967 | 260 | 46.0 m | |
| GOLLS CREEK | Iowa | 1969 | 259 | 12.2 m | |
| DITCH NO.60 | Iowa | 1967 | 259 | 23.8 m | |
| DRAINAGE DITCH 6 | Iowa | 1968 | 259 | 14.6 m | |
| EAST IOWA RIVER | Iowa | 1967 | 259 | 39.3 m | |
| CREAMERY CREEK | Iowa | 1961 | 257 | 18.9 m | |
| MIDDLE NODAWAY RIVER | Iowa | 1968 | 255 | 77.4 m | |
| TRIB W FORK CEDAR RIVER | Iowa | 1966 | 255 | 9.1 m | |
| OVER CNW RR | Iowa | 1936 | 255 | 38.7 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.