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 |
|---|---|---|---|---|---|
| INDIAN CREEK | Iowa | 1930 | 4,059 | 13.7 m | |
| BLACKHAWK CREEK | Iowa | 1950 | 4,004 | 14.3 m | |
| FOUR MILE CREEK | Iowa | 1978 | 3,908 | 75.0 m | |
| DES MOINES RIVER | Iowa | 1911 | 3,844 | 153.3 m | |
| MAPLE RIVER | Iowa | 1967 | 3,720 | 93.0 m | |
| SMALL CREEK | Iowa | 1886 | 3,705 | 11.6 m | |
| UP RR & LYNN CK | Iowa | 1971 | 3,584 | 216.4 m | |
| RAILROAD CREEK | Iowa | 1961 | 3,529 | 11.0 m | |
| FLOYD RIVER | Iowa | 1962 | 3,523 | 93.0 m | |
| CEDAR RIVER | Iowa | 1979 | 3,461 | 208.8 m | |
| BLACK HAWK CREEK | Iowa | 1931 | 3,230 | 54.6 m | |
| OVER UP RR & STREET | Iowa | 1937 | 3,200 | 201.2 m | |
| HINKLE CREEK | Iowa | 1973 | 3,197 | 31.4 m | |
| WAPSI CREEK | Iowa | 1971 | 3,080 | 31.4 m | |
| INDIAN CREEK | Iowa | 1935 | 3,013 | 13.4 m | |
| I-29 | Iowa | 1959 | 2,980 | 64.0 m | |
| BIG SUGAR CREEK | Iowa | 1979 | 2,980 | 88.7 m | |
| MOSQUITO CREEK | Iowa | 1965 | 2,949 | 46.3 m | |
| BIG CREEK | Iowa | 1957 | 2,930 | 127.4 m | |
| MUD CREEK | Iowa | 1927 | 2,902 | 6.7 m | |
| ODEBOLT CREEK | Iowa | 1967 | 2,884 | 46.6 m | |
| IOWA RIVER | Iowa | 1955 | 2,838 | 162.8 m | |
| ROCK CREEK | Iowa | 1965 | 2,838 | 31.1 m | |
| RACCOON AND RR | Iowa | 1936 | 2,825 | 288.6 m | |
| BEAR CREEK | Iowa | 1969 | 2,740 | 38.7 m | |
| DRY RUN CREEK | Iowa | 1905 | 2,673 | 13.4 m | |
| DRAINAGE DITCH | Iowa | 1953 | 2,671 | 7.6 m | |
| SMALL NATURAL STREAM | Iowa | 1954 | 2,671 | 28.0 m | |
| DRAINAGE DITCH | Iowa | 1953 | 2,642 | 7.3 m | |
| ENGLISH CREEK | Iowa | 1975 | 2,640 | 62.5 m | |
| SUGAR CREEK | Iowa | 1933 | 2,628 | 7.9 m | |
| JOHNSON CREEK | Iowa | 1933 | 2,628 | 10.7 m | |
| BNSF RR AND STREAM | Iowa | 1964 | 2,620 | 75.0 m | |
| EAST BLUE CREEK | Iowa | 1930 | 2,583 | 28.0 m | |
| LITTLE SIOUX RIVER | Iowa | 1963 | 2,573 | 61.9 m | |
| RALSTON CREEK | Iowa | 1910 | 2,487 | 10.4 m | |
| GALLS CREEK | Iowa | 1930 | 2,450 | 10.4 m | |
| DRAINAGE DITCH | Iowa | 1954 | 2,396 | 25.0 m | |
| SOLDIER CR (DD NO 247) | Iowa | 1974 | 2,364 | 31.4 m | |
| RALSTON CREEK | Iowa | 1930 | 2,356 | 9.8 m | |
| ELKHORN CREEK | Iowa | 1929 | 2,340 | 18.9 m | |
| IOWA RIVER | Iowa | 1950 | 2,340 | 385.6 m | |
| BUCKLEY CREEK | Iowa | 1967 | 2,340 | 31.1 m | |
| PERRY CREEK | Iowa | 1963 | 2,330 | 17.1 m | |
| WAPSI RIVER OVERFLOW | Iowa | 1922 | 2,310 | 83.8 m | |
| DD NO 247 | Iowa | 1974 | 2,284 | 23.8 m | |
| MISSISSIPPI RIVER | Iowa | 1931 | 2,200 | 496.8 m | |
| CEDAR RIVER | Iowa | 1979 | 2,193 | 208.8 m | |
| WINNEBAGO RIVER | Iowa | 1963 | 2,192 | 39.0 m | |
| RALSTON CREEK | Iowa | 1911 | 2,176 | 6.4 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.