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 |
|---|---|---|---|---|---|
| BLACKHAWK CREEK BRANCH | Iowa | 1956 | 177 | 6.4 m | |
| TRIB TO BLACK HAWK CREEK | Iowa | 1900 | 177 | 7.6 m | |
| CREEK | Iowa | 1970 | 177 | 17.7 m | |
| BLACKHAWK CREEK BRANCH | Iowa | 1956 | 177 | 7.6 m | |
| CAVITT CREEK | Iowa | 1967 | 176 | 13.1 m | |
| WAPSINONOC CREEK | Iowa | 1936 | 176 | 46.9 m | |
| NISHNABOTNA TRIB | Iowa | 1957 | 173 | 31.4 m | |
| CAMP CREEK | Iowa | 1976 | 170 | 39.0 m | |
| WEST IOWA RIVER | Iowa | 1961 | 170 | 23.5 m | |
| UNION SLOUGH DITCH | Iowa | 1951 | 170 | 37.5 m | |
| LITTLE RIVER | Iowa | 1959 | 170 | 76.8 m | |
| BADGER CREEK | Iowa | 1917 | 170 | 10.7 m | |
| STREAM | Iowa | 1953 | 170 | 9.8 m | |
| NO BUSINESS CREEK | Iowa | 1900 | 170 | 16.8 m | |
| NO NAME CREEK | Iowa | 1969 | 170 | 9.8 m | |
| ROCK CREEK | Iowa | 1945 | 170 | 46.9 m | |
| DRAINAGE | Iowa | 1950 | 167 | 6.7 m | |
| LITTLE CEDAR | Iowa | 1967 | 167 | 78.6 m | |
| MUD CREEK TRIBUTARY | Iowa | 1962 | 162 | 7.6 m | |
| N CHEQUEST LAKE CR | Iowa | 1958 | 161 | 39.3 m | |
| BIG BEAR CREEK | Iowa | 1951 | 161 | 46.3 m | |
| SMALL | Iowa | 1950 | 160 | 10.4 m | |
| N. FORK LONG CREEK | Iowa | 1925 | 160 | 12.8 m | |
| WALNUT CREEK | Iowa | 1955 | 160 | 46.6 m | |
| STREAM | Iowa | 1930 | 160 | 12.2 m | |
| JORDAN CREEK | Iowa | 1958 | 159 | 44.2 m | |
| OUTLET GREEN VALLEY LK | Iowa | 1951 | 159 | 11.6 m | |
| TARKIO CREEK | Iowa | 1949 | 159 | 43.9 m | |
| LITTLE SIOUX RIVER | Iowa | 1925 | 159 | 56.4 m | |
| MOSQUITO CREEK | Iowa | 1978 | 159 | 38.1 m | |
| SOLDIER CREEK | Iowa | 1949 | 159 | 55.8 m | |
| BUFFALO CREEK | Iowa | 1965 | 159 | 26.5 m | |
| BROKEN KETTLE CREEK | Iowa | 1960 | 159 | 45.7 m | |
| WATERWAY | Iowa | 1955 | 159 | 9.8 m | |
| VILLAGE CREEK | Iowa | 1966 | 157 | 14.0 m | |
| CRANE CREEK | Iowa | 1959 | 157 | 68.9 m | |
| LINN CR | Iowa | 1916 | 157 | 12.8 m | |
| WALNUT CREEK TRIB | Iowa | 1965 | 153 | 7.3 m | |
| NORTH RACCOON RIVER | Iowa | 1882 | 153 | 118.9 m | |
| INDIAN CREEK | Iowa | 1951 | 150 | 97.5 m | |
| MAPLE RIVER | Iowa | 1960 | 150 | 93.0 m | |
| SMALL STREAM | Iowa | 1926 | 150 | 6.7 m | |
| LITTLE SIOUX RIVER | Iowa | 1961 | 150 | 76.8 m | |
| BR CEDAR RIVER | Iowa | 1975 | 150 | 7.6 m | |
| OVER IAIS RR | Iowa | 1940 | 150 | 41.1 m | |
| DEER CREEK | Iowa | 1947 | 150 | 9.8 m | |
| CEDAR CREEK | Iowa | 1971 | 150 | 23.5 m | |
| LAMALEES CREEK | Iowa | 1957 | 150 | 7.6 m | |
| UNAMED CREEK | Iowa | 1973 | 148 | 19.2 m | |
| CREEK | Iowa | 1955 | 148 | 7.3 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.