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 | 1977 | 50 | 7.9 m | |
| MILL CREEK | Iowa | 1924 | 50 | 31.1 m | |
| DEEP CREEK | Iowa | 1953 | 50 | 28.7 m | |
| SMALL CREEK | Iowa | 1900 | 50 | 18.9 m | |
| N BR NORTH RIVER | Iowa | 1915 | 50 | 38.1 m | |
| NO LIZARD CK DD #168 | Iowa | 1960 | 50 | 8.8 m | |
| PURCELL CREEK | Iowa | 1975 | 50 | 7.9 m | |
| STREAM | Iowa | 1967 | 50 | 12.8 m | |
| TURKEY RUN | Iowa | 1948 | 50 | 12.8 m | |
| S RIVER | Iowa | 1966 | 50 | 101.2 m | |
| WATERWAY | Iowa | 1958 | 50 | 13.7 m | |
| STREAM | Iowa | 1984 | 50 | 12.2 m | |
| LONE TREE BRANCH | Iowa | 1987 | 50 | 15.2 m | |
| CREEK | Iowa | 1978 | 50 | 10.4 m | |
| GRASS WATERWAY | Iowa | 1954 | 50 | 7.0 m | |
| CREEK | Iowa | 1956 | 50 | 39.0 m | |
| BR LITTLE WAPSIPINICON R | Iowa | 1986 | 50 | 8.2 m | |
| CREEK | Iowa | 1960 | 50 | 10.1 m | |
| ROCK RUN CR | Iowa | 1920 | 50 | 19.5 m | |
| ROCK RUN CREEK | Iowa | 1974 | 50 | 11.9 m | |
| ROCK CR | Iowa | 1946 | 50 | 55.8 m | |
| BR GOWER CR | Iowa | 1924 | 50 | 7.9 m | |
| MUD CREEK | Iowa | 1939 | 50 | 36.6 m | |
| BR MILL CR | Iowa | 1925 | 50 | 8.2 m | |
| PRAIRIE CREEK | Iowa | 1965 | 50 | 13.1 m | |
| SMALL STREAM | Iowa | 1997 | 50 | 9.8 m | |
| SAND CREEK | Iowa | 1963 | 50 | 13.7 m | |
| SKILLET CREEK | Iowa | 1982 | 50 | 18.9 m | |
| BRANCH COAL CREEK | Iowa | 1955 | 50 | 18.0 m | |
| ROCK CREEK | Iowa | 1963 | 50 | 25.3 m | |
| CREEK | Iowa | 1955 | 50 | 7.0 m | |
| BALLARD CREEK | Iowa | 1953 | 50 | 7.6 m | |
| LYTLE CREEK | Iowa | 1977 | 50 | 12.5 m | |
| SCHOOL CREEK | Iowa | 1933 | 50 | 6.4 m | |
| BIG BEAR CREEK | Iowa | 1950 | 50 | 55.5 m | |
| SUGAR CREEK | Iowa | 1923 | 50 | 7.0 m | |
| STREAM | Iowa | 1951 | 50 | 27.7 m | |
| LOST BRANCH CREEK | Iowa | 1984 | 50 | 31.4 m | |
| BLUFF CREEK | Iowa | 1948 | 50 | 37.5 m | |
| MUCHAKINOCH CREEK | Iowa | 1951 | 50 | 37.5 m | |
| ROCK CREEK | Iowa | 1973 | 50 | 7.6 m | |
| BRANCH OF BLACKHAWK CRK | Iowa | 1976 | 50 | 10.1 m | |
| MIDDLE RIVER | Iowa | 1959 | 50 | 38.7 m | |
| MIDDLE RIVER | Iowa | 1962 | 50 | 31.1 m | |
| TRIB DES MOINES R | Iowa | 1969 | 50 | 18.6 m | |
| SOUTH RACOON RIVER | Iowa | 1957 | 50 | 77.1 m | |
| STREAM | Iowa | 1977 | 50 | 12.5 m | |
| STREAM | Iowa | 1973 | 50 | 43.3 m | |
| SOUTH RACCOON | Iowa | 1959 | 50 | 45.7 m | |
| MUD CREEK | Iowa | 1920 | 50 | 46.6 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.