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 DITCH | Iowa | 1978 | 1,494 | 10.7 m | |
| DD | Iowa | 1973 | 1,446 | 23.8 m | |
| HARDIN CREEK | Iowa | 1973 | 1,446 | 23.8 m | |
| DRY CREEK | Iowa | 1961 | 1,444 | 6.4 m | |
| BLACKHAWK CREEK | Iowa | 1977 | 1,429 | 39.0 m | |
| BLACKHAWK CREEK | Iowa | 1977 | 1,429 | 31.4 m | |
| DRAINAGE | Iowa | 1900 | 1,429 | 32.3 m | |
| BOHEMIAN CREEK | Iowa | 1951 | 1,420 | 19.8 m | |
| BEAR CREEK | Iowa | 1957 | 1,414 | 7.6 m | |
| LITTLE CEDAR RIVER | Iowa | 1974 | 1,414 | 85.3 m | |
| MILL CREEK | Iowa | 1970 | 1,410 | 52.7 m | |
| BADGER CREEK | Iowa | 1956 | 1,404 | 38.7 m | |
| WOLF CREEK BRANCH | Iowa | 1975 | 1,394 | 12.2 m | |
| WAPSIPINICON RIVER | Iowa | 1962 | 1,390 | 107.0 m | |
| ELK CREEK | Iowa | 1962 | 1,370 | 39.0 m | |
| IOWA RIVER | Iowa | 1953 | 1,365 | 163.4 m | |
| MILL CREEK | Iowa | 1962 | 1,360 | 38.7 m | |
| ROCK CREEK | Iowa | 1959 | 1,350 | 38.4 m | |
| LITTLE TURKEY RIVER | Iowa | 1954 | 1,344 | 54.9 m | |
| OVER BNSF RR | Iowa | 1930 | 1,325 | 48.5 m | |
| LOST CREEK | Iowa | 1953 | 1,310 | 47.2 m | |
| DD | Iowa | 1973 | 1,287 | 23.8 m | |
| OCHEYEDAN RIVER | Iowa | 1971 | 1,287 | 61.9 m | |
| MUD CREEK | Iowa | 1940 | 1,280 | 46.9 m | |
| DRY RUN CREEK | Iowa | 1900 | 1,273 | 10.7 m | |
| CEDAR RIVER | Iowa | 1969 | 1,267 | 315.2 m | |
| DES MOINES RIVER | Iowa | 1960 | 1,263 | 127.1 m | |
| CREEK | Iowa | 1973 | 1,260 | 9.8 m | |
| MOSQUITO CREEK | Iowa | 1978 | 1,260 | 21.0 m | |
| FOX RIVER | Iowa | 1973 | 1,260 | 68.9 m | |
| MOSQUITO CK | Iowa | 1978 | 1,260 | 31.4 m | |
| RACCOON RIVER | Iowa | 1976 | 1,228 | 35.1 m | |
| AMES CREEK | Iowa | 1971 | 1,220 | 23.8 m | |
| OVER UP RR | Iowa | 1940 | 1,210 | 32.3 m | |
| FLINT RIVER | Iowa | 1960 | 1,210 | 46.3 m | |
| SMALL NATURAL STREAM | Iowa | 1959 | 1,207 | 46.9 m | |
| DD DIST 57 | Iowa | 1978 | 1,197 | 10.1 m | |
| W FORK DES MOINES RIVER | Iowa | 1966 | 1,196 | 69.8 m | |
| STREAM | Iowa | 1937 | 1,190 | 6.4 m | |
| QUARTER SECTION RUN | Iowa | 1948 | 1,188 | 26.2 m | |
| BNSF RR | Iowa | 1929 | 1,187 | 57.3 m | |
| INDIAN CREEK | Iowa | 1938 | 1,180 | 13.1 m | |
| NORTH SKUNK RIVER | Iowa | 1935 | 1,170 | 90.8 m | |
| DRAINAGE DITCH | Iowa | 1919 | 1,159 | 8.2 m | |
| LIZARD CREEK | Iowa | 1974 | 1,157 | 39.0 m | |
| BIG CREEK | Iowa | 1959 | 1,151 | 48.5 m | |
| BASKINS CREEK | Iowa | 1971 | 1,149 | 26.8 m | |
| INDIAN CREEK | Iowa | 2002 | 1,129 | 29.6 m | |
| SMALL NATURAL STREAM | Iowa | 1939 | 1,117 | 7.6 m | |
| PRAIRIE CREEK | Iowa | 1965 | 1,090 | 23.8 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.