Poor Condition Bridges in South Dakota
945 bridges rated Poor condition in South Dakota. 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 945 such bridges in South Dakota.
| Bridge | State | Condition | Year Built | ADT | Length |
|---|---|---|---|---|---|
| LONETREE CK | South Dakota | 1985 | 69 | 19.1 m | |
| CK | South Dakota | 1978 | 69 | 15.5 m | |
| CREEK | South Dakota | 1920 | 69 | 7.0 m | |
| SOUTH BR LONETREE CK | South Dakota | 1960 | 69 | 8.4 m | |
| LITTLE MINNESOTA RIVER | South Dakota | 1939 | 68 | 16.0 m | |
| BEAVER CREEK | South Dakota | 1940 | 68 | 7.5 m | |
| CREEK | South Dakota | 1969 | 68 | 15.2 m | |
| BEAVER CREEK | South Dakota | 1935 | 67 | 9.5 m | |
| PLATTE CK | South Dakota | 1967 | 66 | 11.0 m | |
| TURKEY RIDGE CK | South Dakota | 1958 | 66 | 22.6 m | |
| LAKE POINSETT OUTLET | South Dakota | 1960 | 66 | 17.4 m | |
| TRIB. TO E FORK VERM RV | South Dakota | 1930 | 66 | 11.0 m | |
| BEAVER CREEK | South Dakota | 1935 | 65 | 18.7 m | |
| FIRESTEEL CK | South Dakota | 1930 | 65 | 9.8 m | |
| SOUTH CHAPELLE CK | South Dakota | 1920 | 65 | 7.9 m | |
| LONG CK | South Dakota | 1945 | 65 | 9.1 m | |
| CK | South Dakota | 1950 | 65 | 16.9 m | |
| CK | South Dakota | 1950 | 65 | 9.5 m | |
| CK | South Dakota | 1962 | 65 | 6.7 m | |
| VERMILLION RV | South Dakota | 1940 | 65 | 39.0 m | |
| WEST FORK ELM CK | South Dakota | 1928 | 65 | 7.9 m | |
| MEDICINE CK | South Dakota | 1956 | 64 | 16.2 m | |
| BIG SIOUX RV | South Dakota | 1962 | 64 | 46.6 m | |
| CK | South Dakota | 1962 | 64 | 33.1 m | |
| ENEMY CK | South Dakota | 1967 | 64 | 11.3 m | |
| ENEMY CK | South Dakota | 1920 | 64 | 8.2 m | |
| ENEMY CK | South Dakota | 1915 | 64 | 11.3 m | |
| ENEMY CK | South Dakota | 1935 | 64 | 12.8 m | |
| DRY RUN CK | South Dakota | 1945 | 64 | 7.9 m | |
| ENEMY CK | South Dakota | 1970 | 64 | 13.7 m | |
| NORTH BR TWELVE MILE CK | South Dakota | 1930 | 64 | 7.9 m | |
| NORTH BR TWELVE MILE CK | South Dakota | 1930 | 64 | 10.7 m | |
| NORTH BR TWELVE MILE CK | South Dakota | 1945 | 64 | 10.7 m | |
| BIG SIOUX RV | South Dakota | 1900 | 63 | 43.1 m | |
| CK | South Dakota | 1974 | 63 | 15.5 m | |
| ANTELOPE CK | South Dakota | 1954 | 63 | 22.6 m | |
| WEST FIRESTEEL CK | South Dakota | 1936 | 62 | 44.5 m | |
| RAPID CK | South Dakota | 1972 | 62 | 12.2 m | |
| TRIB TO BEAVER CK | South Dakota | 1935 | 62 | 7.1 m | |
| CK | South Dakota | 1925 | 61 | 7.3 m | |
| CK | South Dakota | 1940 | 61 | 7.9 m | |
| SHUE CREEK | South Dakota | 1936 | 60 | 10.4 m | |
| TURKEY RIDGE CK | South Dakota | 1945 | 60 | 18.1 m | |
| PRAIRIE CREEK | South Dakota | 1905 | 60 | 10.4 m | |
| PRAIRIE CREEK | South Dakota | 1925 | 60 | 9.1 m | |
| BEAVER CREEK | South Dakota | 1930 | 60 | 9.4 m | |
| BEAVER CREEK | South Dakota | 1955 | 60 | 28.0 m | |
| BULL CK | South Dakota | 1975 | 60 | 12.5 m | |
| E FORK VERMILLION RV | South Dakota | 2000 | 60 | 10.7 m | |
| CK | South Dakota | 1931 | 60 | 9.4 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.