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 |
|---|---|---|---|---|---|
| STREAM | Iowa | 1916 | 16 | 12.2 m | |
| ROBERTS CREEK | Iowa | 1917 | 16 | 15.5 m | |
| AMES CREEK | Iowa | 1912 | 16 | 11.3 m | |
| DRAINAGE DITCH NO 6 | Iowa | 1956 | 16 | 13.4 m | |
| STREAM | Iowa | 1981 | 16 | 15.5 m | |
| HONEY CREEK | Iowa | 1919 | 16 | 23.8 m | |
| CREEK | Iowa | 1977 | 16 | 8.8 m | |
| CREEK | Iowa | 1989 | 16 | 9.8 m | |
| HONEY CREEK | Iowa | 1963 | 16 | 21.6 m | |
| TIPTON CREEK | Iowa | 1987 | 16 | 15.9 m | |
| LYNN CREEK | Iowa | 1975 | 16 | 16.2 m | |
| EAST FORK CROOKED CREEK | Iowa | 1914 | 16 | 11.3 m | |
| BR CRANE CREEK | Iowa | 1970 | 16 | 7.9 m | |
| SMALL STREAM | Iowa | 1926 | 16 | 6.7 m | |
| ALLOWAY CREEK | Iowa | 1965 | 16 | 18.0 m | |
| SMALL STREAM | Iowa | 1952 | 16 | 8.2 m | |
| ALLOWAY CREEK | Iowa | 1937 | 16 | 13.1 m | |
| BRANCH OF SUGAR CREEK | Iowa | 1940 | 16 | 18.0 m | |
| OTTER CR | Iowa | 1921 | 16 | 21.9 m | |
| BR OF CEDAR CREEK | Iowa | 1937 | 16 | 7.3 m | |
| CHARITON RIVER | Iowa | 1934 | 16 | 30.2 m | |
| FIVE MILE CREEK | Iowa | 1940 | 16 | 14.6 m | |
| DR TO FIVE MILE CREEK | Iowa | 1940 | 16 | 11.9 m | |
| STREAM | Iowa | 1925 | 16 | 10.4 m | |
| CALHOUN CREEK | Iowa | 1953 | 16 | 13.1 m | |
| BRUSH CREEK | Iowa | 1917 | 16 | 16.5 m | |
| SOUTH TIMBER CREEK | Iowa | 1939 | 16 | 21.3 m | |
| SNIPE CREEK | Iowa | 1950 | 16 | 11.6 m | |
| BR MINERVA CR | Iowa | 1947 | 16 | 10.7 m | |
| CREEK | Iowa | 1956 | 16 | 7.9 m | |
| DOWD CREEK | Iowa | 1916 | 16 | 17.4 m | |
| BRUSH CREEK | Iowa | 1930 | 16 | 11.6 m | |
| CREEK | Iowa | 1940 | 15 | 13.7 m | |
| CREEK | Iowa | 1932 | 15 | 21.0 m | |
| SMALL | Iowa | 1979 | 15 | 14.6 m | |
| PLUM CREEK | Iowa | 1976 | 15 | 11.0 m | |
| BR ROCK CR | Iowa | 1920 | 15 | 13.4 m | |
| BEAVER DAM CREEK | Iowa | 1913 | 15 | 18.3 m | |
| PITCHER CR | Iowa | 1926 | 15 | 10.4 m | |
| OVERFLOW CHANNEL | Iowa | 1925 | 15 | 7.9 m | |
| CREEK | Iowa | 1916 | 15 | 7.9 m | |
| WILLOW CREEK | Iowa | 1917 | 15 | 10.4 m | |
| DD | Iowa | 1976 | 15 | 10.1 m | |
| PIGEON CREEK | Iowa | 1967 | 15 | 26.2 m | |
| WILLOW CREEK | Iowa | 1975 | 15 | 50.0 m | |
| NORTH WALNUT CREEK | Iowa | 1930 | 15 | 11.3 m | |
| BR UPPER IOWA RIVER | Iowa | 1951 | 15 | 18.6 m | |
| STAFF CR | Iowa | 1944 | 15 | 26.8 m | |
| DRAINAGE DITCH | Iowa | 1948 | 15 | 7.3 m | |
| PRAIRIE CREEK | Iowa | 1900 | 15 | 20.7 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.