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 |
|---|---|---|---|---|---|
| MUDDY CREEK | Iowa | 1967 | 628 | 7.9 m | |
| STEPHENS CREEK | Iowa | 1960 | 628 | 31.1 m | |
| SMALL STREAM | Iowa | 1967 | 627 | 23.8 m | |
| CEDAR RIVER | Iowa | 1948 | 620 | 349.0 m | |
| RICHLAND CREEK | Iowa | 1932 | 620 | 55.8 m | |
| SMALL STREAM | Iowa | 1932 | 620 | 9.1 m | |
| LINDNER CREEK | Iowa | 1972 | 620 | 10.8 m | |
| BRANCH BEAVER CREEK | Iowa | 1968 | 619 | 9.8 m | |
| IOWA RIVER | Iowa | 1988 | 619 | 184.1 m | |
| DRAINAGE | Iowa | 1960 | 616 | 18.9 m | |
| ZADIE CREEK | Iowa | 1925 | 610 | 10.7 m | |
| TURKEY RIVER | Iowa | 1953 | 609 | 104.5 m | |
| DRAINAGE | Iowa | 1976 | 609 | 13.4 m | |
| UNNAMED CREEK | Iowa | 1961 | 598 | 23.8 m | |
| JIM CREEK | Iowa | 1972 | 597 | 38.1 m | |
| DD | Iowa | 1959 | 597 | 55.5 m | |
| DRAINAGE | Iowa | 1949 | 597 | 46.3 m | |
| HOWERDON CREEK | Iowa | 1972 | 597 | 21.3 m | |
| TOM CREEK | Iowa | 1962 | 597 | 9.8 m | |
| DIVERSION DITCH | Iowa | 1962 | 597 | 82.6 m | |
| CRANE CREEK | Iowa | 1968 | 590 | 46.6 m | |
| BEAR CR | Iowa | 1930 | 589 | 6.7 m | |
| HONEY CREEK | Iowa | 1973 | 589 | 45.7 m | |
| SILVER CREEK | Iowa | 1969 | 589 | 31.4 m | |
| ODEBOLT CREEK | Iowa | 1964 | 589 | 31.4 m | |
| WILLOW CREEK | Iowa | 1964 | 580 | 23.5 m | |
| CRANE CREEK | Iowa | 1968 | 579 | 9.8 m | |
| BLACKHAWK CREEK | Iowa | 1967 | 579 | 54.3 m | |
| BRANCH IOWA RIVER | Iowa | 1969 | 579 | 10.1 m | |
| LITTLE CEDAR | Iowa | 1964 | 579 | 55.8 m | |
| NO LIZARD CK DD #171 | Iowa | 1965 | 578 | 21.0 m | |
| OVER CC RR | Iowa | 1932 | 578 | 47.9 m | |
| FAMERS GARRETSON DITCH | Iowa | 1962 | 578 | 66.8 m | |
| MULE SLOUGH | Iowa | 2008 | 577 | 7.6 m | |
| MIDDLE RACOON RIVER | Iowa | 1951 | 574 | 102.7 m | |
| HINKLE CREEK | Iowa | 1962 | 570 | 6.4 m | |
| DRAINAGE | Iowa | 1976 | 569 | 31.4 m | |
| WEST IOWA RIVER | Iowa | 1979 | 569 | 34.7 m | |
| LITTLE MAPLE RIVER | Iowa | 1974 | 569 | 10.4 m | |
| SM STREAM | Iowa | 1974 | 569 | 10.4 m | |
| DD NO 4 | Iowa | 1974 | 559 | 23.8 m | |
| MILL CREEK | Iowa | 1958 | 550 | 44.5 m | |
| WAPSIPINICON RIVER | Iowa | 1956 | 550 | 38.7 m | |
| MILL CREEK | Iowa | 1956 | 550 | 17.4 m | |
| PRAIRIE CREEK | Iowa | 1967 | 550 | 39.0 m | |
| MINERVA CREEK | Iowa | 1972 | 550 | 13.4 m | |
| WEST FORK LITTLE SIOUX | Iowa | 1955 | 549 | 65.2 m | |
| LIZARD CREEK | Iowa | 1965 | 549 | 61.0 m | |
| CREEK | Iowa | 1955 | 549 | 7.3 m | |
| LIZARD CREEK | Iowa | 1965 | 549 | 61.0 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.