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 | Iowa | 1959 | 40 | 9.8 m | |
| CREEK | Iowa | 1959 | 40 | 7.0 m | |
| WALNUT CR | Iowa | 1977 | 40 | 21.3 m | |
| SOUTH CHARITON RIVER | Iowa | 1918 | 40 | 7.6 m | |
| DD 9-13 | Iowa | 1900 | 40 | 19.5 m | |
| WILLOW CREEK | Iowa | 1900 | 40 | 9.1 m | |
| UNNAMED CREEK | Iowa | 1966 | 40 | 7.6 m | |
| WOLF CREEK | Iowa | 1956 | 40 | 40.2 m | |
| SMALL STREAM | Iowa | 1986 | 40 | 7.9 m | |
| PRAIRIE CREEK | Iowa | 1955 | 40 | 13.4 m | |
| DRAINAGE | Iowa | 1930 | 40 | 7.0 m | |
| WATERWAY | Iowa | 1959 | 40 | 13.4 m | |
| WATERWAY | Iowa | 1959 | 40 | 13.4 m | |
| MCELHANEY CREEK | Iowa | 1960 | 40 | 19.8 m | |
| LIZARD CK DD #53 | Iowa | 1975 | 40 | 9.8 m | |
| BUSHY CREEK | Iowa | 1955 | 40 | 17.4 m | |
| BUSHY CREEK | Iowa | 1952 | 40 | 42.4 m | |
| MIDDLE PLATTE RIVER | Iowa | 1952 | 40 | 15.9 m | |
| CROOKED CREEK | Iowa | 1965 | 40 | 9.1 m | |
| BADGER CREEK | Iowa | 1890 | 40 | 28.3 m | |
| STREAM | Iowa | 1976 | 40 | 18.9 m | |
| CREEK | Iowa | 1977 | 40 | 9.4 m | |
| NORWAY CREEK | Iowa | 1953 | 40 | 9.4 m | |
| STREAM | Iowa | 1969 | 40 | 14.6 m | |
| MILL CREEK | Iowa | 1973 | 40 | 27.7 m | |
| SOLDIER CREEK | Iowa | 1948 | 40 | 64.9 m | |
| CREEK | Iowa | 1930 | 40 | 6.1 m | |
| BRANCH OF BEAVER CREEK | Iowa | 1953 | 40 | 15.2 m | |
| PLATTE RIVER | Iowa | 1962 | 40 | 55.5 m | |
| SMALL CREEK | Iowa | 1949 | 40 | 7.6 m | |
| MIDDLE RIVER | Iowa | 1981 | 40 | 9.4 m | |
| SOUTH FORK MIDDLE RIVER | Iowa | 1971 | 40 | 9.8 m | |
| TRIB TO MASON CREEK | Iowa | 1977 | 40 | 9.8 m | |
| SEELY CREEK | Iowa | 1957 | 40 | 16.5 m | |
| DRAINAGE | Iowa | 1951 | 40 | 16.5 m | |
| TROUBLESOME CREEK | Iowa | 1948 | 40 | 7.6 m | |
| SMALL STREAM | Iowa | 1951 | 40 | 15.5 m | |
| BOONE RIVER | Iowa | 1907 | 40 | 63.1 m | |
| DRAINAGE | Iowa | 1978 | 40 | 13.1 m | |
| MCCANDLESS CLEGHORN DD | Iowa | 1970 | 40 | 10.1 m | |
| EAST RIVER | Iowa | 1950 | 40 | 30.5 m | |
| STREAM | Iowa | 1948 | 40 | 10.1 m | |
| DRAINAGE DITCH #2 | Iowa | 1951 | 40 | 9.8 m | |
| CREEK | Iowa | 1970 | 40 | 7.9 m | |
| PIGEON CREEK | Iowa | 1920 | 40 | 40.5 m | |
| LITTLE SIOUX RIVER | Iowa | 1971 | 40 | 96.6 m | |
| STREAM | Iowa | 1951 | 40 | 7.3 m | |
| PIGEON CREEK | Iowa | 1952 | 40 | 43.6 m | |
| SO ENGLISH RIVER | Iowa | 1980 | 40 | 9.4 m | |
| SOUTH ENGLISH RIVER | Iowa | 1974 | 40 | 12.5 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.