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 |
|---|---|---|---|---|---|
| ROCK CREEK | Iowa | 1900 | 20 | 15.9 m | |
| N PIERSON CREEK | Iowa | 1920 | 20 | 8.5 m | |
| PITCHER CREEK | Iowa | 1921 | 20 | 8.8 m | |
| CANOE CREEK | Iowa | 1924 | 20 | 18.3 m | |
| WHISKEY CREEK | Iowa | 1929 | 20 | 25.6 m | |
| BLACK HAWK CREEK | Iowa | 1979 | 20 | 67.1 m | |
| MUNNS CREEK | Iowa | 1957 | 20 | 7.3 m | |
| BEAVER CREEK | Iowa | 1978 | 20 | 39.6 m | |
| MIDDLE FORK OF BEAVER CR | Iowa | 1976 | 20 | 11.9 m | |
| STREAM | Iowa | 1943 | 20 | 7.6 m | |
| STREAM | Iowa | 1975 | 20 | 7.3 m | |
| DEER CREEK | Iowa | 1985 | 20 | 28.0 m | |
| SMALL | Iowa | 1978 | 20 | 12.5 m | |
| STREAM | Iowa | 1957 | 20 | 9.4 m | |
| STREAM | Iowa | 1940 | 20 | 7.6 m | |
| S. RACCOON RIVER | Iowa | 1959 | 20 | 28.0 m | |
| S RACCOON RIVER | Iowa | 1959 | 20 | 74.4 m | |
| STREAM | Iowa | 1959 | 20 | 31.4 m | |
| TRIB TO MASON CREEK | Iowa | 1957 | 20 | 7.6 m | |
| TROUBLESOME CREEK | Iowa | 1957 | 20 | 31.1 m | |
| TRIB. TO TROUBLESOME | Iowa | 1920 | 20 | 7.0 m | |
| FROST CREEK | Iowa | 1959 | 20 | 13.4 m | |
| HUNTER CREEK | Iowa | 1979 | 20 | 18.0 m | |
| STREAM | Iowa | 1977 | 20 | 9.8 m | |
| LONG DICK CR | Iowa | 1924 | 20 | 10.1 m | |
| LONG DICK CR | Iowa | 1916 | 20 | 12.2 m | |
| JORDAN CREEK | Iowa | 1979 | 20 | 22.6 m | |
| F0UR MILE CREEK | Iowa | 1979 | 20 | 13.1 m | |
| FORK NORTH CHARITON | Iowa | 1988 | 20 | 12.5 m | |
| CREEK | Iowa | 1926 | 20 | 6.4 m | |
| SALT CREEK | Iowa | 1940 | 20 | 8.2 m | |
| BOONE RIVER | Iowa | 1969 | 20 | 35.1 m | |
| BOONE RIVER | Iowa | 1925 | 20 | 11.3 m | |
| CREEK | Iowa | 1900 | 20 | 9.4 m | |
| SMALL STREAM | Iowa | 1987 | 20 | 12.8 m | |
| TIPTON CREEK | Iowa | 1900 | 20 | 36.6 m | |
| TIPTON CREEK | Iowa | 1985 | 20 | 17.4 m | |
| MOSQUITO CREEK | Iowa | 1940 | 20 | 55.2 m | |
| KEG CREEK | Iowa | 1957 | 20 | 12.8 m | |
| MOSQUITO CREEK | Iowa | 1930 | 20 | 67.7 m | |
| ALLEN CREEK | Iowa | 1959 | 20 | 18.9 m | |
| HONEY CREEK | Iowa | 1940 | 20 | 24.7 m | |
| ALLEN CREEK | Iowa | 1976 | 20 | 20.4 m | |
| CRANE CREEK | Iowa | 1937 | 20 | 41.5 m | |
| INDIAN CREEK | Iowa | 1900 | 20 | 13.7 m | |
| BROKEN KETTLE CREEK | Iowa | 1959 | 20 | 7.6 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 |
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.