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 |
|---|---|---|---|---|---|
| CEDAR RIVER | Iowa | 1968 | 324 | 316.4 m | |
| IOWA RIVER | Iowa | 1959 | 320 | 59.1 m | |
| OVERFLOW IOWA RIVER | Iowa | 1900 | 320 | 12.8 m | |
| DRAINAGE DITCH | Iowa | 1960 | 319 | 16.8 m | |
| OTTER CREEK | Iowa | 1969 | 319 | 31.4 m | |
| PRAIRE CREEK | Iowa | 1996 | 319 | 27.7 m | |
| GREY CREEK | Iowa | 1970 | 319 | 23.5 m | |
| CREEK | Iowa | 1959 | 319 | 8.2 m | |
| LITTLE SIOUX | Iowa | 1969 | 319 | 30.8 m | |
| STONY CREEK | Iowa | 1990 | 315 | 31.4 m | |
| SALT CREEK | Iowa | 1959 | 314 | 44.5 m | |
| STEIN CREEK | Iowa | 1959 | 314 | 38.7 m | |
| TURKEY RIVER | Iowa | 1953 | 314 | 103.6 m | |
| SHANCTON CREEK | Iowa | 1970 | 310 | 6.4 m | |
| SOUTH CHEQUEST CREEK | Iowa | 1981 | 310 | 31.4 m | |
| ELK RIVER | Iowa | 1968 | 310 | 38.7 m | |
| CREEK | Iowa | 1920 | 310 | 14.3 m | |
| CREEK | Iowa | 1963 | 310 | 9.1 m | |
| CHARITON RIVER | Iowa | 1970 | 310 | 76.8 m | |
| KLONDIKE CREEK | Iowa | 1966 | 309 | 30.5 m | |
| WEST FORK LITTLE SIOUX | Iowa | 1969 | 309 | 54.9 m | |
| WEST MILL CREEK | Iowa | 1979 | 309 | 49.7 m | |
| BUFFALO CREEK | Iowa | 1958 | 309 | 26.8 m | |
| WEST BRANCH 102 RIVER | Iowa | 1936 | 309 | 45.7 m | |
| WEST 102 RIVER | Iowa | 1985 | 309 | 43.3 m | |
| DRAINAGE DITCH | Iowa | 1994 | 305 | 23.8 m | |
| BRANCH OF RICHLAND CREEK | Iowa | 1967 | 304 | 23.8 m | |
| BRANCH BURNETTE CREEK | Iowa | 1984 | 304 | 27.4 m | |
| EAST BOYER RIVER | Iowa | 1913 | 303 | 15.9 m | |
| EF DES MOINES RIVER | Iowa | 1957 | 300 | 31.1 m | |
| MIDDLE RIVER | Iowa | 1958 | 300 | 76.8 m | |
| DD 261 | Iowa | 1963 | 300 | 7.9 m | |
| W NODAWAY | Iowa | 1939 | 300 | 54.9 m | |
| WEST BEAVER CREEK | Iowa | 1921 | 300 | 7.9 m | |
| INDIAN CR | Iowa | 1890 | 299 | 32.0 m | |
| BEEDS CREEK | Iowa | 1965 | 295 | 9.4 m | |
| CROW CREEK | Iowa | 1975 | 295 | 18.9 m | |
| BR MISS RIVER | Iowa | 1978 | 294 | 13.4 m | |
| PLUM CREEK | Iowa | 1950 | 294 | 6.7 m | |
| WET CREEK | Iowa | 1893 | 294 | 20.7 m | |
| DD 150-86 | Iowa | 1964 | 293 | 13.1 m | |
| LITTLE MUCHAKINOCK | Iowa | 1965 | 290 | 28.3 m | |
| RIGGS CREEK | Iowa | 1970 | 290 | 11.0 m | |
| DRAINAGE DITCH | Iowa | 1976 | 290 | 7.6 m | |
| DD 9-13 | Iowa | 1966 | 290 | 21.0 m | |
| CARTER CK | Iowa | 1973 | 290 | 45.7 m | |
| SO SKUNK RIVER | Iowa | 1956 | 290 | 104.5 m | |
| MUD CREEK | Iowa | 1970 | 290 | 38.1 m | |
| MUD CREEK | Iowa | 1948 | 290 | 6.7 m | |
| RACCOON RIVER | Iowa | 1965 | 290 | 77.1 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.