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 |
|---|---|---|---|---|---|
| QUINN CREEK | Iowa | 1997 | 29 | 10.1 m | |
| CREEK | Iowa | 1966 | 29 | 21.9 m | |
| CREEK | Iowa | 1988 | 29 | 8.2 m | |
| SMALL DRY RUN | Iowa | 1988 | 29 | 7.6 m | |
| CRANE CREEK | Iowa | 1911 | 29 | 31.1 m | |
| LITTLEFLOOD CREEK | Iowa | 1987 | 29 | 15.5 m | |
| CREEK | Iowa | 1980 | 29 | 10.1 m | |
| SMALL STREAM | Iowa | 1952 | 29 | 12.8 m | |
| OTTER CREEK | Iowa | 1971 | 29 | 9.4 m | |
| SKUNK RIVER | Iowa | 1928 | 29 | 65.8 m | |
| #6 DITCH | Iowa | 1986 | 29 | 12.2 m | |
| CREEK | Iowa | 1974 | 29 | 10.7 m | |
| SMALL STREAM | Iowa | 1987 | 29 | 9.8 m | |
| MUNNS CREEK | Iowa | 1971 | 29 | 12.2 m | |
| BRANCH BLACK HAWK CREEK | Iowa | 1971 | 29 | 28.3 m | |
| BRANCH BLACKHAWK CREEK | Iowa | 1957 | 29 | 7.6 m | |
| BRANCH BEAVER CREEK | Iowa | 1971 | 29 | 14.3 m | |
| OTTER CREEK | Iowa | 1930 | 29 | 29.0 m | |
| STREAM | Iowa | 1957 | 29 | 7.6 m | |
| SMALL STREAM | Iowa | 1982 | 29 | 12.5 m | |
| STREAM | Iowa | 1959 | 29 | 6.4 m | |
| SOUTH BRANCH SALT CREEK | Iowa | 1940 | 29 | 10.7 m | |
| BR SUGAR CREEK | Iowa | 1920 | 29 | 7.9 m | |
| SMALL STREAM | Iowa | 1987 | 29 | 18.6 m | |
| BRANCH SUGAR CREEK | Iowa | 1920 | 29 | 6.1 m | |
| HONEY CREEK | Iowa | 1982 | 29 | 14.3 m | |
| BEAVER CREEK | Iowa | 1985 | 29 | 26.8 m | |
| IOWA RIVER (SOUTH FORK) | Iowa | 1956 | 29 | 31.7 m | |
| BR MIDDLE FK GRAND RIVER | Iowa | 1940 | 29 | 9.4 m | |
| SMALL STREAM | Iowa | 1986 | 29 | 16.2 m | |
| SOUTH FORK | Iowa | 1919 | 29 | 14.3 m | |
| DAUGHERTY CREEK | Iowa | 1952 | 29 | 14.6 m | |
| SMALL CREEK | Iowa | 1916 | 29 | 9.8 m | |
| HOFFMAN CREEK | Iowa | 1940 | 29 | 25.3 m | |
| CREEK | Iowa | 1963 | 29 | 6.4 m | |
| LITTLE TURKEY RIVER | Iowa | 1985 | 29 | 16.5 m | |
| STREAM | Iowa | 1948 | 29 | 7.6 m | |
| CREEK | Iowa | 1978 | 29 | 56.1 m | |
| PLATTE RIVER | Iowa | 1955 | 29 | 54.6 m | |
| TODD BRANCH | Iowa | 1940 | 29 | 6.4 m | |
| NORTH SKUNK RIVER | Iowa | 1938 | 29 | 9.1 m | |
| MCCANDLESS CLEGHORN D D | Iowa | 1997 | 29 | 6.7 m | |
| SMALL RUNNING CREEK | Iowa | 1900 | 29 | 8.5 m | |
| CREEK | Iowa | 1900 | 29 | 10.1 m | |
| CREEK | Iowa | 1900 | 29 | 9.1 m | |
| DRAINAGE | Iowa | 1945 | 29 | 9.1 m | |
| JONES CREEK | Iowa | 1974 | 29 | 21.0 m | |
| CEDAR CREEK | Iowa | 1952 | 29 | 7.0 m | |
| TOM CREEK | Iowa | 1910 | 29 | 24.4 m | |
| NISHNABOTNA TRIB | Iowa | 1949 | 29 | 10.1 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.