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 |
|---|---|---|---|---|---|
| DRAINAGE | Iowa | 1977 | 359 | 10.1 m | |
| BACON CREEK | Iowa | 1967 | 359 | 46.6 m | |
| OVER I.C.E. RR | Iowa | 1900 | 358 | 34.7 m | |
| MIDDLE RACCOON RIVER | Iowa | 1965 | 358 | 60.0 m | |
| VOLGA RIVER | Iowa | 1955 | 356 | 40.2 m | |
| LAKE CREEK | Iowa | 1985 | 354 | 31.4 m | |
| MOON CREEK | Iowa | 1958 | 354 | 23.8 m | |
| CREEK | Iowa | 1961 | 350 | 8.2 m | |
| CREEK | Iowa | 1971 | 350 | 6.7 m | |
| SOLDIER RIVER | Iowa | 1971 | 350 | 35.4 m | |
| DRAINAGE | Iowa | 1940 | 349 | 7.3 m | |
| SMALL STREAM | Iowa | 1920 | 349 | 7.0 m | |
| STREAM | Iowa | 1968 | 349 | 13.4 m | |
| BROWN BRANCH | Iowa | 1965 | 349 | 31.4 m | |
| MINNOW CREEK | Iowa | 1900 | 349 | 6.4 m | |
| SOUTH RIVER | Iowa | 1936 | 349 | 46.6 m | |
| SOLDIER RIVER | Iowa | 1955 | 349 | 92.7 m | |
| SMALL STREAM | Iowa | 1900 | 346 | 18.3 m | |
| SALT CREEK | Iowa | 1965 | 344 | 23.8 m | |
| BRANCH SALT CREEK | Iowa | 1996 | 344 | 17.4 m | |
| SO BRANCH SALT CREEK | Iowa | 1996 | 344 | 12.5 m | |
| SO BR RALSTON CREEK | Iowa | 1957 | 341 | 6.7 m | |
| LITTLE BEAR CREEK | Iowa | 1912 | 340 | 12.2 m | |
| SUGAR CREEK | Iowa | 1968 | 340 | 46.9 m | |
| LYNN CREEK | Iowa | 1964 | 340 | 23.8 m | |
| CEDAR CREEK | Iowa | 1957 | 340 | 77.4 m | |
| DD NO 69 | Iowa | 1974 | 339 | 31.4 m | |
| CREEK | Iowa | 1964 | 339 | 21.3 m | |
| ROCK RIVER | Iowa | 1968 | 337 | 76.8 m | |
| ALLEN CREEK | Iowa | 1969 | 335 | 12.2 m | |
| TIPTON CREEK | Iowa | 1900 | 334 | 19.2 m | |
| BEAVER CREEK | Iowa | 1967 | 334 | 30.8 m | |
| RALSTON CREEK | Iowa | 1957 | 330 | 6.7 m | |
| WOLF CREEK | Iowa | 1958 | 330 | 43.9 m | |
| YANKEE RUN | Iowa | 1940 | 330 | 7.6 m | |
| MAQUOKETA RIVER | Iowa | 1950 | 330 | 134.1 m | |
| DD #41 BIG CEDAR CK | Iowa | 1977 | 330 | 27.7 m | |
| D D # 51 | Iowa | 1966 | 330 | 13.4 m | |
| SMALL STREAM | Iowa | 1990 | 330 | 14.9 m | |
| WEST TARKIO CREEK | Iowa | 1968 | 329 | 64.9 m | |
| MID TARKIO CREEK | Iowa | 1968 | 329 | 34.4 m | |
| SOUTH RACCOON RIVER | Iowa | 1975 | 329 | 76.2 m | |
| WEST 102 RIVER | Iowa | 1962 | 329 | 62.2 m | |
| JIM CREEK | Iowa | 1971 | 329 | 23.8 m | |
| GRAND RIVER | Iowa | 1959 | 329 | 92.1 m | |
| WEST 102 RIVER | Iowa | 1986 | 329 | 58.5 m | |
| FORK CREEK | Iowa | 1960 | 326 | 6.7 m | |
| STREAM | Iowa | 1960 | 325 | 7.9 m | |
| UPPER IOWA RIVER | Iowa | 1937 | 324 | 90.5 m | |
| ROCK FALLS CREEK | Iowa | 1966 | 324 | 9.4 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.