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 |
|---|---|---|---|---|---|
| MINERVA CR | Iowa | 1945 | 5 | 13.1 m | |
| DEER CREEK | Iowa | 1977 | 5 | 8.5 m | |
| STREAM | Iowa | 1954 | 5 | 18.6 m | |
| SILVER CREEK | Iowa | 1938 | 5 | 43.6 m | |
| FARM CREEK | Iowa | 1963 | 5 | 9.4 m | |
| TRIB TO MAPLE RIVER | Iowa | 1900 | 5 | 23.2 m | |
| TRIB TARKIO | Iowa | 1955 | 5 | 18.9 m | |
| SMALL STREAM | Iowa | 1985 | 5 | 21.0 m | |
| DRAINAGE | Iowa | 1987 | 5 | 19.8 m | |
| DRAINAGE | Iowa | 1969 | 5 | 23.2 m | |
| NISHNABOTNA TRIB | Iowa | 1970 | 5 | 12.5 m | |
| DRAINAGE | Iowa | 1945 | 5 | 18.9 m | |
| MINOR DRAINAGE | Iowa | 1966 | 5 | 18.3 m | |
| OTTER CREEK | Iowa | 1949 | 5 | 27.4 m | |
| STREAM | Iowa | 1999 | 5 | 13.1 m | |
| MIDDLE TARKIO RIVER | Iowa | 1951 | 5 | 49.4 m | |
| STREAM | Iowa | 1999 | 5 | 10.1 m | |
| STREAM | Iowa | 1915 | 5 | 10.7 m | |
| MUD CREEK | Iowa | 1956 | 5 | 11.6 m | |
| PERRY CREEK | Iowa | 1900 | 5 | 15.2 m | |
| PERRY CREEK | Iowa | 1952 | 5 | 11.3 m | |
| CLEAR CREEK | Iowa | 1946 | 5 | 10.1 m | |
| PLYMOUTH CREEK | Iowa | 1946 | 5 | 23.2 m | |
| INDIAN CREEK | Iowa | 1961 | 5 | 24.1 m | |
| BR N LIZARD CR DD#169 | Iowa | 1989 | 5 | 7.3 m | |
| CROOKED CREEK | Iowa | 1980 | 5 | 9.1 m | |
| BEAVER CK | Iowa | 1973 | 5 | 20.7 m | |
| N LIZARD CREEK | Iowa | 1916 | 5 | 10.7 m | |
| GRAYBILL CREEK | Iowa | 1947 | 5 | 32.3 m | |
| JORDAN CREEK | Iowa | 1976 | 5 | 20.1 m | |
| STREAM | Iowa | 1961 | 5 | 7.6 m | |
| STREAM | Iowa | 1991 | 5 | 12.2 m | |
| PIGEON CREEK | Iowa | 1925 | 5 | 43.6 m | |
| WALNUT CREEK | Iowa | 1926 | 5 | 13.1 m | |
| STREAM | Iowa | 1953 | 5 | 14.6 m | |
| STREAM | Iowa | 1949 | 5 | 6.4 m | |
| E BIG CREEK | Iowa | 1958 | 5 | 34.7 m | |
| STREAM | Iowa | 1955 | 5 | 19.2 m | |
| STREAM | Iowa | 1953 | 5 | 6.4 m | |
| STREAM | Iowa | 1946 | 5 | 7.3 m | |
| E FK GRAND RIVER | Iowa | 1962 | 5 | 37.2 m | |
| W FK GRAND RIVER | Iowa | 1940 | 5 | 26.8 m | |
| LOTTS CREEK | Iowa | 1952 | 5 | 14.6 m | |
| LOTTS CREEK | Iowa | 1949 | 5 | 12.2 m | |
| GOOSEBERRY CREEK | Iowa | 1956 | 5 | 14.9 m | |
| STREAM | Iowa | 1952 | 5 | 14.3 m | |
| STREAM | Iowa | 1956 | 5 | 10.1 m | |
| STREAM | Iowa | 1954 | 5 | 7.9 m | |
| STREAM | Iowa | 1954 | 5 | 7.6 m | |
| E FORK GRAND RIVER | Iowa | 1969 | 5 | 14.9 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.