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 |
|---|---|---|---|---|---|
| BEAR CREEK | Iowa | 1950 | 60 | 36.9 m | |
| MIDDLE MINERVA CREEK | Iowa | 1953 | 60 | 18.9 m | |
| CREEK | Iowa | 1975 | 60 | 7.0 m | |
| SMALL STREAM | Iowa | 1930 | 60 | 9.8 m | |
| WEST TARKIO RIVER | Iowa | 1960 | 60 | 39.9 m | |
| BRUSHY FORK CREEK | Iowa | 1925 | 60 | 28.3 m | |
| FIELD STREAM | Iowa | 1946 | 60 | 9.5 m | |
| EAST BR INDIAN CREEK | Iowa | 1922 | 60 | 10.4 m | |
| MUCHAKINOCH CREEK | Iowa | 1951 | 60 | 13.1 m | |
| S. SKUNK RIVER | Iowa | 1948 | 60 | 99.7 m | |
| SMALL STREAM | Iowa | 1928 | 60 | 9.8 m | |
| WATERWAY | Iowa | 1952 | 60 | 64.0 m | |
| DRAINAGE DITCH | Iowa | 1948 | 60 | 10.7 m | |
| SMALL STREAM | Iowa | 1959 | 60 | 7.9 m | |
| CREEK | Iowa | 1950 | 60 | 7.0 m | |
| STREAM | Iowa | 1923 | 60 | 7.9 m | |
| CREEK | Iowa | 1956 | 60 | 9.1 m | |
| PIGEON CREEK | Iowa | 1967 | 60 | 28.0 m | |
| SMALL CREEK | Iowa | 1958 | 60 | 13.4 m | |
| ROCK CREEK | Iowa | 1958 | 60 | 7.9 m | |
| S. BR. BIG CREEK | Iowa | 1957 | 60 | 31.4 m | |
| FLOYD RIVER | Iowa | 1954 | 60 | 59.4 m | |
| STREAM | Iowa | 1920 | 60 | 8.8 m | |
| BR MILL CR | Iowa | 1955 | 60 | 8.2 m | |
| STREAM | Iowa | 1973 | 60 | 6.1 m | |
| STREAM | Iowa | 1940 | 60 | 7.3 m | |
| POT HOLE CREEK | Iowa | 1957 | 60 | 13.4 m | |
| STREAM | Iowa | 1957 | 60 | 17.4 m | |
| NORTH LIZARD CREEK | Iowa | 1970 | 60 | 26.8 m | |
| BRUSH CREEK | Iowa | 1980 | 60 | 22.3 m | |
| TRIB OF LITTLE RIVER | Iowa | 1969 | 60 | 24.4 m | |
| LITTLE TARKIO TRIB | Iowa | 1947 | 60 | 11.6 m | |
| NORTH RIVER | Iowa | 1960 | 60 | 77.4 m | |
| DM RIVER | Iowa | 1911 | 60 | 33.5 m | |
| STREAM | Iowa | 1939 | 60 | 12.8 m | |
| E NISHNABOTNA RIVER | Iowa | 1958 | 60 | 91.4 m | |
| LONG CREEK | Iowa | 1950 | 60 | 37.2 m | |
| SMALL STREAM | Iowa | 1949 | 60 | 10.7 m | |
| COTTONWOOD DRAIN | Iowa | 1953 | 60 | 22.9 m | |
| WEST TARKIO RIVER | Iowa | 1957 | 60 | 54.6 m | |
| TARKIO CREEK | Iowa | 1949 | 60 | 40.2 m | |
| BROWN CR | Iowa | 1961 | 60 | 9.4 m | |
| N FORK LONG CR | Iowa | 1973 | 60 | 14.6 m | |
| NISHNABOTNA | Iowa | 1942 | 60 | 86.6 m | |
| STREAM | Iowa | 1953 | 60 | 21.0 m | |
| STREAM | Iowa | 1952 | 60 | 17.4 m | |
| BOYER RIVER | Iowa | 1916 | 60 | 28.3 m | |
| CEDAR CREEK | Iowa | 1952 | 60 | 92.4 m | |
| STREAM | Iowa | 1967 | 60 | 9.4 m | |
| MIDDLE TARKIO RIVER | Iowa | 1949 | 60 | 78.3 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.