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 |
|---|---|---|---|---|---|
| MUD CREEK | Iowa | 1969 | 709 | 39.0 m | |
| LITTLE ROCK RIVER | Iowa | 1954 | 709 | 61.0 m | |
| CREEK | Iowa | 1966 | 707 | 6.7 m | |
| LITTLE WAPSIPINICON RVR | Iowa | 1968 | 707 | 55.5 m | |
| RAILROAD CREEK | Iowa | 1900 | 699 | 10.4 m | |
| DD # 77 NO LIZARD CK | Iowa | 1973 | 698 | 27.7 m | |
| KEG CREEK | Iowa | 1951 | 698 | 51.2 m | |
| SKUNK RIVER | Iowa | 1974 | 698 | 46.0 m | |
| SMALL CREEK | Iowa | 1986 | 697 | 9.1 m | |
| LUTES CREEK | Iowa | 1957 | 697 | 33.2 m | |
| TROUT RIVER | Iowa | 1958 | 697 | 7.3 m | |
| ENGLISH RIVER | Iowa | 1958 | 690 | 63.7 m | |
| LONG CREEK | Iowa | 1966 | 690 | 9.1 m | |
| LONG CREEK | Iowa | 1966 | 690 | 8.8 m | |
| ABANDON RR | Iowa | 1977 | 689 | 57.0 m | |
| MUD CREEK | Iowa | 1968 | 688 | 38.4 m | |
| TIPTON CR | Iowa | 1974 | 687 | 34.1 m | |
| BLOODY RUN CREEK | Iowa | 1927 | 687 | 12.5 m | |
| BLACK HAWK CREEK | Iowa | 1979 | 687 | 68.9 m | |
| BEAVERDAM CREEK | Iowa | 1969 | 687 | 53.6 m | |
| BEAVER DAM CREEK | Iowa | 1961 | 687 | 30.5 m | |
| DRAINAGE | Iowa | 1900 | 684 | 12.2 m | |
| INDIAN CREEK | Iowa | 1936 | 684 | 8.8 m | |
| DRAINAGE | Iowa | 1972 | 680 | 39.0 m | |
| NEELY BRANCH | Iowa | 1962 | 678 | 47.9 m | |
| BRANCH IOWA RIVER | Iowa | 1965 | 678 | 13.4 m | |
| FLINT RIVER | Iowa | 1974 | 670 | 58.5 m | |
| JIM CREEK | Iowa | 1948 | 668 | 46.6 m | |
| FLOOD CREEK | Iowa | 1930 | 668 | 28.0 m | |
| SMALL STREAM | Iowa | 1960 | 660 | 6.4 m | |
| LITTLE CEDAR CREEK | Iowa | 1968 | 658 | 31.4 m | |
| NORTH WALNUT CREEK | Iowa | 1990 | 650 | 35.4 m | |
| WALNUT CREEK | Iowa | 1990 | 650 | 41.1 m | |
| BRUSHY FORK CREEK | Iowa | 1964 | 650 | 10.4 m | |
| LITTLE CEDAR CREEK | Iowa | 1972 | 650 | 39.3 m | |
| PLAGUE MINE CREEK | Iowa | 1976 | 650 | 25.3 m | |
| SALT CREEK | Iowa | 1976 | 650 | 87.8 m | |
| SUGAR CREEK | Iowa | 1976 | 650 | 39.0 m | |
| INDIAN CREEK | Iowa | 1967 | 649 | 22.9 m | |
| SMALL NATURAL STREAM | Iowa | 1940 | 649 | 8.5 m | |
| BEAR CREEK | Iowa | 1951 | 648 | 47.2 m | |
| SMALL NATURAL STREAM | Iowa | 1959 | 643 | 9.4 m | |
| SUGAR CREEK | Iowa | 1960 | 640 | 7.0 m | |
| SOAP CREEK | Iowa | 1956 | 640 | 61.3 m | |
| OSCAR CREEK | Iowa | 1917 | 640 | 7.9 m | |
| DRAINAGE DITCH | Iowa | 1959 | 639 | 29.0 m | |
| STREAM | Iowa | 1966 | 638 | 13.1 m | |
| MUDDY CREEK | Iowa | 1967 | 628 | 7.9 m | |
| WHISKEY CREEK | Iowa | 1967 | 628 | 31.4 m | |
| DRAINAGE | Iowa | 1973 | 628 | 10.1 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.