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 | Iowa | 1945 | 20 | 25.0 m | |
| LOCAL STREAM | Iowa | 1985 | 20 | 27.7 m | |
| WALNUT CREEK | Iowa | 1951 | 20 | 49.7 m | |
| NODAWAY RIVER | Iowa | 1968 | 20 | 18.3 m | |
| DRAINAGE | Iowa | 1942 | 20 | 35.1 m | |
| MINOR DRAINAGE | Iowa | 1971 | 20 | 29.0 m | |
| CREEK | Iowa | 1900 | 20 | 9.4 m | |
| UPPER IOWA RIVER | Iowa | 1904 | 20 | 44.8 m | |
| SNAKE CREEK | Iowa | 1980 | 20 | 27.7 m | |
| BUCK CREEK | Iowa | 1994 | 20 | 18.9 m | |
| UNNAMED STREAM | Iowa | 1970 | 20 | 36.3 m | |
| W TARKIO RIVER | Iowa | 1972 | 20 | 39.0 m | |
| WEST TARKIO CREEK | Iowa | 1977 | 20 | 37.5 m | |
| STREAM | Iowa | 1984 | 20 | 31.7 m | |
| STREAM | Iowa | 1953 | 20 | 39.0 m | |
| WEST TARKIO RIVER | Iowa | 1953 | 20 | 23.8 m | |
| GARRETSON DRAINAGE DITCH | Iowa | 1970 | 20 | 31.4 m | |
| DD #123 | Iowa | 1966 | 20 | 13.7 m | |
| WOLF CREEK | Iowa | 1981 | 20 | 19.5 m | |
| PERRY CREEK | Iowa | 1900 | 20 | 18.3 m | |
| DD | Iowa | 1956 | 20 | 9.4 m | |
| STREAM | Iowa | 1970 | 20 | 10.4 m | |
| DRAINAGE | Iowa | 1949 | 20 | 9.4 m | |
| WESTFIELD CREEK | Iowa | 1948 | 20 | 11.3 m | |
| DRAINAGE | Iowa | 1949 | 20 | 14.0 m | |
| W BR FLOYD RIVER | Iowa | 1941 | 20 | 43.6 m | |
| W BR FLOYD RIVER | Iowa | 1900 | 20 | 28.0 m | |
| DRAINAGE | Iowa | 1961 | 20 | 12.8 m | |
| INDIAN CREEK | Iowa | 1900 | 20 | 13.7 m | |
| BROKEN KETTLE CREEK | Iowa | 1959 | 20 | 7.6 m | |
| BROKEN KETTLE CREEK | Iowa | 1948 | 20 | 9.1 m | |
| INDIAN CREEK | Iowa | 1956 | 20 | 11.6 m | |
| INDIAN CREEK | Iowa | 1900 | 20 | 9.1 m | |
| SO LIZARD CR DD#22 | Iowa | 1918 | 20 | 11.9 m | |
| LITTLE CEDAR CREEK | Iowa | 1953 | 20 | 21.3 m | |
| BEAVER CREEK | Iowa | 1900 | 20 | 15.9 m | |
| BEAVER CREEK | Iowa | 1957 | 20 | 17.7 m | |
| N LIZARD CREEK | Iowa | 1921 | 20 | 9.8 m | |
| N LIZARD CREEK | Iowa | 1974 | 20 | 16.5 m | |
| MUD CREEK | Iowa | 1925 | 20 | 13.7 m | |
| MUD CREEK | Iowa | 1976 | 20 | 24.4 m | |
| STREAM | Iowa | 1965 | 20 | 6.4 m | |
| KEG CREEK | Iowa | 1976 | 20 | 29.9 m | |
| STREAM | Iowa | 1976 | 20 | 21.3 m | |
| LITTLE SILVER CREEK | Iowa | 1989 | 20 | 12.8 m | |
| DEEP RIVER | Iowa | 1983 | 20 | 25.0 m | |
| NORTH ENGLISH RIVER | Iowa | 1951 | 20 | 39.9 m | |
| STREAM | Iowa | 1948 | 20 | 10.7 m | |
| LITTLE BEAR CREEK | Iowa | 1952 | 20 | 22.9 m | |
| CHEQUEST CREEK | Iowa | 1953 | 20 | 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.