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 |
|---|---|---|---|---|---|
| SMALL STREAM | Iowa | 1932 | 30 | 9.1 m | |
| OLIVE BRANCH CREEK | Iowa | 1950 | 30 | 16.5 m | |
| SMALL STREAM | Iowa | 1923 | 30 | 7.3 m | |
| DRAINAGE | Iowa | 1957 | 30 | 17.4 m | |
| NORTH SKUNK RIVER | Iowa | 1938 | 29 | 9.1 m | |
| STREAM | Iowa | 1983 | 29 | 9.1 m | |
| NISHNABOTNA TRIB | Iowa | 1949 | 29 | 10.1 m | |
| WEYFORD CREEK | Iowa | 1960 | 29 | 9.8 m | |
| GRAYBILL CREEK | Iowa | 1950 | 29 | 53.3 m | |
| CREEK | Iowa | 1918 | 29 | 6.1 m | |
| SKUNK RIVER | Iowa | 1928 | 29 | 65.8 m | |
| TODD BRANCH | Iowa | 1940 | 29 | 6.4 m | |
| CREEK | Iowa | 1900 | 29 | 9.1 m | |
| FIELD STREAM | Iowa | 1957 | 29 | 7.0 m | |
| LONE TREE CREEK | Iowa | 1900 | 29 | 17.4 m | |
| CROOKED CREEK | Iowa | 1950 | 29 | 46.9 m | |
| BRANCH OF RICHLAND CREEK | Iowa | 1941 | 29 | 8.2 m | |
| SMALL STREAM | Iowa | 1987 | 29 | 9.8 m | |
| SILVER CREEK | Iowa | 1961 | 29 | 40.5 m | |
| SILVER CREEK | Iowa | 1930 | 29 | 50.3 m | |
| 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 | |
| #6 DITCH | Iowa | 1986 | 29 | 12.2 m | |
| LITTLE TARKIO TRIB | Iowa | 1947 | 29 | 9.4 m | |
| CREEK | Iowa | 1974 | 29 | 10.7 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 | |
| STREAM | Iowa | 1957 | 29 | 7.6 m | |
| SMALL STREAM | Iowa | 1982 | 29 | 12.5 m | |
| STREAM | Iowa | 1959 | 29 | 6.4 m | |
| SMALL STREAM | Iowa | 1987 | 29 | 18.6 m | |
| RAVEN CREEK | Iowa | 1940 | 29 | 13.1 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 | |
| SOUTH FORK | Iowa | 1919 | 29 | 14.3 m | |
| OTTER CREEK | Iowa | 1930 | 29 | 29.0 m | |
| SMALL CREEK | Iowa | 1916 | 29 | 9.8 m | |
| HOFFMAN CREEK | Iowa | 1940 | 29 | 25.3 m | |
| LITTLE TURKEY RIVER | Iowa | 1985 | 29 | 16.5 m | |
| SMALL STREAM | Iowa | 1986 | 29 | 16.2 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.