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 |
|---|---|---|---|---|---|
| PILOT CREEK | Iowa | 1970 | 439 | 23.8 m | |
| LITTLE MAPLE RIVER | Iowa | 1971 | 439 | 23.8 m | |
| MORGAN CREEK | Iowa | 2000 | 439 | 36.6 m | |
| BRANCH SALT CREEK | Iowa | 1970 | 432 | 39.0 m | |
| CRANE CREEK | Iowa | 1966 | 432 | 78.3 m | |
| LITTLE ASHER CR | Iowa | 1968 | 432 | 38.7 m | |
| S SKUNK RIVER | Iowa | 1967 | 430 | 106.7 m | |
| SPRING CREEK | Iowa | 1959 | 430 | 23.8 m | |
| ROCK CREEK | Iowa | 1985 | 430 | 31.4 m | |
| WEST FORK LITTLE SIOUX | Iowa | 1955 | 429 | 65.2 m | |
| LIZARD CK DD #54 | Iowa | 1964 | 429 | 17.4 m | |
| SMALL CREEK | Iowa | 1900 | 429 | 6.4 m | |
| BR LITTLE BEAR CREEK | Iowa | 1929 | 422 | 11.6 m | |
| WELDON RIVER | Iowa | 1957 | 421 | 54.0 m | |
| SOUTH WYACONDAH DITCH | Iowa | 1974 | 420 | 46.0 m | |
| ANSON CREEK | Iowa | 1979 | 418 | 11.0 m | |
| SMALL STREAM | Iowa | 1938 | 417 | 6.4 m | |
| FIELD DRAINAGE DITCH | Iowa | 1951 | 417 | 7.3 m | |
| FIELD DRAINAGE DITCH | Iowa | 1951 | 417 | 7.3 m | |
| SMALL CREEK | Iowa | 1965 | 417 | 10.4 m | |
| MIDDLE NODAWAY | Iowa | 1939 | 415 | 73.2 m | |
| BRANCH BLACK HAWK CREEK | Iowa | 1973 | 412 | 17.7 m | |
| BLACK HAWK CREEK | Iowa | 1973 | 412 | 75.0 m | |
| CREEK | Iowa | 1964 | 409 | 6.4 m | |
| UP RAILROAD | Iowa | 1948 | 406 | 36.9 m | |
| DRAINAGE TO CAMP CREEK | Iowa | 1983 | 405 | 24.1 m | |
| CREEK | Iowa | 1962 | 403 | 8.3 m | |
| BAILEY CREEK | Iowa | 1956 | 403 | 37.2 m | |
| SMALL CREEK | Iowa | 1968 | 403 | 18.6 m | |
| DRY BRANCH CREEK | Iowa | 1964 | 403 | 25.3 m | |
| CREEK | Iowa | 1953 | 403 | 11.6 m | |
| STONY CREEK | Iowa | 1958 | 400 | 31.1 m | |
| N FORK MAQUOKETA RIVER | Iowa | 1952 | 400 | 97.5 m | |
| STONY FORK | Iowa | 1969 | 400 | 8.8 m | |
| SMALL STREAM | Iowa | 1964 | 400 | 6.4 m | |
| ROCK RIVER | Iowa | 1970 | 399 | 106.1 m | |
| EAST NODAWAY RIVER | Iowa | 1955 | 399 | 54.6 m | |
| CREEK | Iowa | 1939 | 399 | 13.6 m | |
| RAPID CR | Iowa | 1960 | 398 | 12.2 m | |
| UPPER IOWA | Iowa | 1950 | 393 | 76.8 m | |
| UPPER IOWA | Iowa | 1950 | 393 | 7.6 m | |
| UPPER IOWA | Iowa | 1949 | 393 | 16.2 m | |
| BRUSH CREEK | Iowa | 1927 | 393 | 24.4 m | |
| OVERFLOW | Iowa | 1950 | 393 | 24.7 m | |
| UPPER IOWA | Iowa | 1949 | 393 | 25.3 m | |
| BRANCH BEAVER CREEK | Iowa | 1966 | 393 | 18.9 m | |
| FOUR MILE CREEK | Iowa | 1950 | 392 | 21.3 m | |
| SMALL | Iowa | 1978 | 390 | 24.1 m | |
| HOG BRANCH | Iowa | 1975 | 390 | 12.8 m | |
| BACON CREEK | Iowa | 1968 | 390 | 46.6 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.