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 |
|---|---|---|---|---|---|
| BLUE EARTH RIVER | Iowa | 1924 | 938 | 13.1 m | |
| INDIAN CREEK | Iowa | 1969 | 938 | 31.4 m | |
| SMALL STREAM | Iowa | 1980 | 937 | 7.6 m | |
| BRANCH YELLOW RIVER | Iowa | 1999 | 933 | 27.7 m | |
| LITTLE INDIAN CREEK | Iowa | 1968 | 928 | 7.9 m | |
| SMITH CREEK | Iowa | 1928 | 920 | 22.3 m | |
| EAST FORK CROOKED CREEK | Iowa | 1970 | 910 | 54.6 m | |
| N TIMBER CREEK | Iowa | 1963 | 903 | 16.5 m | |
| FRENCH CREEK | Iowa | 1962 | 899 | 23.8 m | |
| W FORK LITTLE SIOUX | Iowa | 1968 | 898 | 15.2 m | |
| FOX RIVER | Iowa | 1962 | 890 | 70.1 m | |
| LANDPHERE CREEK | Iowa | 1972 | 890 | 31.4 m | |
| PECHMAN CREEK | Iowa | 1974 | 880 | 13.1 m | |
| LONG BRANCH CREEK | Iowa | 1967 | 880 | 15.9 m | |
| DES MOINES RIVER | Iowa | 1957 | 880 | 379.5 m | |
| BR OF ENGLISH CREEK | Iowa | 1963 | 880 | 31.4 m | |
| DRAINAGE DITCH #52 | Iowa | 1953 | 880 | 9.8 m | |
| OVER-FLOW-NORTH RIVER | Iowa | 1970 | 880 | 23.8 m | |
| HURLEY CREEK | Iowa | 1973 | 875 | 18.3 m | |
| WEST FORK CEDAR RIVER | Iowa | 1964 | 874 | 84.1 m | |
| CREEK | Iowa | 1962 | 870 | 6.1 m | |
| SMALL STREAM | Iowa | 1962 | 869 | 15.5 m | |
| RED OAK CREEK | Iowa | 1965 | 861 | 13.4 m | |
| BUCK CREEK | Iowa | 1958 | 854 | 47.5 m | |
| SMALL NATURAL STREAM | Iowa | 1947 | 854 | 9.4 m | |
| SMALL NATURAL STREAM | Iowa | 1948 | 854 | 13.4 m | |
| NORTH SOAP CREEK | Iowa | 1968 | 850 | 55.5 m | |
| BOYER RIVER | Iowa | 1956 | 848 | 31.4 m | |
| DUGOUT CREEK | Iowa | 1970 | 843 | 27.7 m | |
| AURELIA CREEK | Iowa | 1939 | 841 | 10.7 m | |
| DRAINAGE DITCH 2 | Iowa | 1969 | 840 | 23.5 m | |
| SNAKE CREEK | Iowa | 1962 | 837 | 32.3 m | |
| NICHOLSON CREEK | Iowa | 1960 | 836 | 22.9 m | |
| PRAIRIE CREEK | Iowa | 1969 | 835 | 24.1 m | |
| MISSISSIPPI SLOUGH | Iowa | 1957 | 832 | 9.4 m | |
| BUTCHER CREEK | Iowa | 1952 | 830 | 19.5 m | |
| W BRANCH IOWA RIVER | Iowa | 1948 | 828 | 28.0 m | |
| MINK CREEK | Iowa | 1957 | 825 | 46.7 m | |
| SANDHAGEN CREEK | Iowa | 1965 | 825 | 23.8 m | |
| PRAIRIE CREEK | Iowa | 1960 | 820 | 6.4 m | |
| OTTER CREEK | Iowa | 1963 | 820 | 46.9 m | |
| EAGLE CREEK | Iowa | 1963 | 818 | 20.7 m | |
| FLOYD RIVER | Iowa | 1954 | 813 | 84.1 m | |
| S SKUNK RIVER | Iowa | 1961 | 810 | 107.0 m | |
| CARSON CREEK | Iowa | 1964 | 810 | 31.4 m | |
| S RIVER | Iowa | 1949 | 807 | 70.7 m | |
| RAILROAD CREEK | Iowa | 1900 | 803 | 13.1 m | |
| DRAINAGE DITCH | Iowa | 1948 | 803 | 6.4 m | |
| FRENCH CREEK | Iowa | 1962 | 800 | 23.8 m | |
| PLATTE RIVER | Iowa | 1976 | 800 | 37.5 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.