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 |
|---|---|---|---|---|---|
| WEST TARKIO RIVER | Iowa | 1952 | 120 | 39.0 m | |
| PLUM CREEK | Iowa | 1954 | 120 | 13.4 m | |
| DRAINAGE | Iowa | 1983 | 118 | 11.9 m | |
| LITTLE ASHER CR | Iowa | 1916 | 118 | 12.8 m | |
| PINE CREEK | Iowa | 1938 | 118 | 37.5 m | |
| SPRING BRANCH | Iowa | 1951 | 118 | 25.0 m | |
| TEN MILE CREEK | Iowa | 1900 | 118 | 13.4 m | |
| BR LITTLE WAPSIPINICON | Iowa | 1957 | 118 | 23.5 m | |
| SMALL STREAM | Iowa | 1988 | 113 | 12.2 m | |
| EAST FORK BIG CREEK | Iowa | 1967 | 113 | 18.3 m | |
| PECK CREEK | Iowa | 1913 | 113 | 12.8 m | |
| LOCAL CREEK | Iowa | 1963 | 112 | 10.1 m | |
| SMALL STREAM | Iowa | 1977 | 110 | 9.4 m | |
| CREEK | Iowa | 1900 | 110 | 6.1 m | |
| WEST FORK 102 RIVER | Iowa | 1969 | 110 | 12.2 m | |
| TRIB. OF FOX RIVER | Iowa | 1985 | 110 | 12.2 m | |
| LOCAL CREEK | Iowa | 1958 | 110 | 31.4 m | |
| SOAP CREEK | Iowa | 1920 | 110 | 43.3 m | |
| WOLF CREEK | Iowa | 1955 | 110 | 31.1 m | |
| MILLER CREEK | Iowa | 1900 | 110 | 7.9 m | |
| CREEK | Iowa | 1936 | 110 | 12.8 m | |
| STREAM | Iowa | 1980 | 110 | 9.4 m | |
| IAIS RR | Iowa | 1952 | 110 | 37.8 m | |
| BROWN CREEK | Iowa | 1941 | 110 | 7.6 m | |
| PRAIRIE CREEK | Iowa | 1906 | 110 | 31.1 m | |
| RACCOON RIVER | Iowa | 1974 | 110 | 75.0 m | |
| CAIN CREEK | Iowa | 1971 | 110 | 21.3 m | |
| CAIN CREEK | Iowa | 1968 | 110 | 42.1 m | |
| SMITH CREEK | Iowa | 1930 | 110 | 13.1 m | |
| CREEK | Iowa | 1938 | 110 | 11.9 m | |
| PEDEE CREEK | Iowa | 1965 | 110 | 12.5 m | |
| SMALL STREAM | Iowa | 1900 | 110 | 18.9 m | |
| SMALL | Iowa | 1980 | 110 | 13.7 m | |
| DRAINAGE | Iowa | 1968 | 110 | 31.1 m | |
| SMALL STREAM | Iowa | 1956 | 110 | 7.3 m | |
| LITTLE RIVER | Iowa | 1957 | 110 | 62.5 m | |
| CREEK | Iowa | 1900 | 108 | 7.6 m | |
| CREEK | Iowa | 1917 | 108 | 8.5 m | |
| SNAKE CREEK | Iowa | 1959 | 108 | 13.7 m | |
| CREEK | Iowa | 1973 | 108 | 23.8 m | |
| UPPER IOWA RIVER | Iowa | 1924 | 108 | 75.6 m | |
| NORTH SKUNK RIVER | Iowa | 1936 | 106 | 33.2 m | |
| DRAINAGE | Iowa | 1910 | 104 | 8.8 m | |
| BUCK CREEK | Iowa | 1919 | 104 | 10.1 m | |
| COOPER CREEK | Iowa | 1956 | 104 | 38.4 m | |
| CREEK | Iowa | 1953 | 104 | 13.1 m | |
| SMALL STREAM | Iowa | 1921 | 104 | 6.7 m | |
| RED ROCK CREEK | Iowa | 1915 | 104 | 7.0 m | |
| SMALL STREAM | Iowa | 1986 | 104 | 10.1 m | |
| MIDDLE RIVER | Iowa | 1940 | 103 | 67.7 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.