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 DITCH 36 | Iowa | 1980 | 30 | 13.4 m | |
| STREAM | Iowa | 1917 | 30 | 10.4 m | |
| SMALL STREAM | Iowa | 1985 | 30 | 11.9 m | |
| SMALL STREAM | Iowa | 1923 | 30 | 7.3 m | |
| LONG DICK CREEK | Iowa | 1924 | 30 | 13.7 m | |
| DRAINAGE DITCH | Iowa | 1923 | 30 | 15.2 m | |
| STREAM | Iowa | 1931 | 30 | 7.9 m | |
| DRAINAGE DITCH | Iowa | 1919 | 30 | 9.8 m | |
| DRAINAGE DITCH NO. 3 | Iowa | 1913 | 30 | 6.7 m | |
| SMALL STREAM | Iowa | 1932 | 30 | 9.1 m | |
| CREEK | Iowa | 1900 | 30 | 14.9 m | |
| CREEK | Iowa | 1900 | 30 | 6.7 m | |
| MINERVA CREEK | Iowa | 1984 | 30 | 15.9 m | |
| SMALL STREAM | Iowa | 1975 | 30 | 12.2 m | |
| TIPTON CREEK | Iowa | 1984 | 30 | 21.3 m | |
| HONEY CREEK | Iowa | 1988 | 30 | 18.0 m | |
| STREAM | Iowa | 1981 | 30 | 9.8 m | |
| DRAINAGE | Iowa | 1954 | 30 | 7.6 m | |
| BUCK CREEK | Iowa | 1957 | 30 | 12.8 m | |
| BERRY BRANCH | Iowa | 1974 | 30 | 12.5 m | |
| LYNN CREEK | Iowa | 1974 | 30 | 13.1 m | |
| TURKEY RIVER | Iowa | 1986 | 30 | 9.8 m | |
| NORTH TURKEY | Iowa | 1966 | 30 | 10.4 m | |
| BROKEN KETTLE CREEK | Iowa | 1900 | 30 | 14.9 m | |
| DM RIVER | Iowa | 1905 | 30 | 66.1 m | |
| DRAINAGE | Iowa | 1900 | 30 | 10.1 m | |
| STREAM | Iowa | 1965 | 30 | 12.2 m | |
| PICAYUNE CREEK | Iowa | 1934 | 30 | 10.4 m | |
| SUGAR CREEK | Iowa | 1929 | 30 | 10.4 m | |
| BIG INDIAN CREEK | Iowa | 1967 | 30 | 28.0 m | |
| WEST BRANCH SUGAR CREEK | Iowa | 1934 | 30 | 10.4 m | |
| OTTER CREEK | Iowa | 1920 | 30 | 31.1 m | |
| SMALL STREAM | Iowa | 1960 | 30 | 17.4 m | |
| BRANCH N TIMBER CREEK | Iowa | 1920 | 30 | 7.6 m | |
| NORTH TIMBER CREEK | Iowa | 1951 | 30 | 13.1 m | |
| SMALL STREAM | Iowa | 1900 | 30 | 6.4 m | |
| SMALL STREAM | Iowa | 1943 | 30 | 13.7 m | |
| SOUTH ENGLISH RIVER | Iowa | 1990 | 30 | 10.7 m | |
| ROCK CR | Iowa | 1950 | 30 | 10.7 m | |
| CARRUTHERS CREEK | Iowa | 1981 | 30 | 19.8 m | |
| MINERVA CR | Iowa | 1946 | 30 | 34.1 m | |
| SMALL | Iowa | 1979 | 30 | 18.9 m | |
| BR LINN CR | Iowa | 1942 | 30 | 7.0 m | |
| INDIAN CREEK | Iowa | 1956 | 30 | 18.6 m | |
| OTTER CREEK | Iowa | 1900 | 30 | 24.1 m | |
| OVER FLOW | Iowa | 1900 | 30 | 9.8 m | |
| TAFT CREEK | Iowa | 1900 | 30 | 9.8 m | |
| STREAM | Iowa | 1948 | 30 | 7.9 m | |
| DEEP RIVER | Iowa | 1949 | 30 | 12.8 m | |
| WOLF CREEK | Iowa | 1940 | 30 | 21.6 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.