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 |
|---|---|---|---|---|---|
| MISS RVR RR & IA 461 | Iowa | 1940 | 26,500 | 1,174.7 m | |
| BNSF RVR STS & IA 376 | Iowa | 1936 | 20,600 | 1,210.1 m | |
| SUGAR CREEK | Iowa | 1960 | 18,050 | 30.8 m | |
| OLD UP RR & SW 22ND | Iowa | 1936 | 15,634 | 73.5 m | |
| DUCK CREEK | Iowa | 1900 | 15,300 | 29.6 m | |
| CHERRY RR MLK PKWY | Iowa | 1967 | 14,108 | 406.6 m | |
| RALSTON CREEK | Iowa | 1972 | 14,025 | 25.3 m | |
| STREAM | Iowa | 1926 | 14,000 | 10.4 m | |
| IOWA 21 | Iowa | 1963 | 13,300 | 41.8 m | |
| RACCOON RIVER & TRAIL | Iowa | 1967 | 12,809 | 346.3 m | |
| DRY CREEK | Iowa | 1915 | 10,953 | 21.3 m | |
| IOWA RIVER | Iowa | 1915 | 10,950 | 104.2 m | |
| INDIAN CREEK | Iowa | 1988 | 10,789 | 69.2 m | |
| LINN CREEK | Iowa | 1951 | 10,448 | 32.0 m | |
| CEDAR RIVER & RR | Iowa | 1969 | 10,268 | 202.4 m | |
| GOOSE CREEK | Iowa | 1978 | 10,200 | 24.7 m | |
| OVER CC RR | Iowa | 1968 | 9,703 | 64.9 m | |
| RR AND MADISON ST | Iowa | 1951 | 9,491 | 488.9 m | |
| CEDAR RIVER | Iowa | 1938 | 9,382 | 200.6 m | |
| FLOYD RIVER | Iowa | 1962 | 8,957 | 91.7 m | |
| DRAINAGE DITCH | Iowa | 1955 | 8,894 | 22.3 m | |
| SOLDIER CREEK | Iowa | 1974 | 8,798 | 89.9 m | |
| DRY RUN CREEK | Iowa | 1950 | 8,392 | 6.7 m | |
| IOWAY CREEK | Iowa | 1957 | 8,224 | 63.4 m | |
| DES MOINES RIVER | Iowa | 1976 | 7,911 | 253.0 m | |
| VIADUCT(RR & STREETS) | Iowa | 1976 | 7,488 | 807.4 m | |
| SHERMANS CREEK | Iowa | 1914 | 6,893 | 12.2 m | |
| DES MOINES RIVER | Iowa | 1987 | 6,875 | 132.9 m | |
| RR CHERRY MLK JR PKWY | Iowa | 1967 | 6,875 | 461.8 m | |
| OVER UP RR | Iowa | 1980 | 6,813 | 85.0 m | |
| GOOSE CREEK | Iowa | 1978 | 6,376 | 24.7 m | |
| MAQUOKETA RIVER | Iowa | 1980 | 6,294 | 64.6 m | |
| S DRY RUN | Iowa | 1968 | 6,093 | 12.8 m | |
| OVER RR | Iowa | 1984 | 6,031 | 77.7 m | |
| SOLDIER CREEK & TRAIL | Iowa | 1961 | 5,768 | 279.8 m | |
| SILVER CREEK | Iowa | 1955 | 5,696 | 64.6 m | |
| SOLDIER CREEK | Iowa | 1995 | 5,546 | 53.3 m | |
| IOWA RIVER | Iowa | 1916 | 5,400 | 96.0 m | |
| LONE TREE CREEK | Iowa | 1925 | 5,200 | 19.5 m | |
| CEDAR RIVER | Iowa | 1909 | 4,971 | 75.6 m | |
| PRAIRIE CREEK | Iowa | 1964 | 4,910 | 66.1 m | |
| YEADER CREEK | Iowa | 1976 | 4,717 | 35.4 m | |
| RALSTON CREEK | Iowa | 1935 | 4,693 | 18.9 m | |
| OVER IAIS RR | Iowa | 1970 | 4,688 | 59.1 m | |
| BASS CREEK | Iowa | 1958 | 4,680 | 34.1 m | |
| FLOYD RIVER | Iowa | 1962 | 4,432 | 106.4 m | |
| W FORK LITTLE SIOUX RVR | Iowa | 1929 | 4,310 | 20.4 m | |
| DUCK CREEK | Iowa | 1962 | 4,210 | 38.1 m | |
| PRAIRIE CREEK | Iowa | 1964 | 4,121 | 68.9 m | |
| I-29 | Iowa | 1959 | 4,090 | 75.6 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.