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 |
|---|---|---|---|---|---|
| CREEK | South Dakota | 1930 | 48 | 6.3 m | |
| ANDES CREEK | South Dakota | 1930 | 48 | 7.9 m | |
| CK | South Dakota | 1941 | 48 | 15.6 m | |
| MOSQUITO CK | South Dakota | 1941 | 48 | 7.6 m | |
| MOSQUITO CREEK | South Dakota | 1974 | 48 | 11.0 m | |
| MOSQUITO CREEK | South Dakota | 1920 | 48 | 14.1 m | |
| CREEK | South Dakota | 1925 | 48 | 9.1 m | |
| CREEK | South Dakota | 1940 | 48 | 7.3 m | |
| CHOTEAU CREEK | South Dakota | 1940 | 48 | 10.7 m | |
| CHOTEAU CREEK | South Dakota | 1930 | 48 | 10.4 m | |
| CREEK | South Dakota | 1912 | 48 | 9.1 m | |
| NORTH FORK BAD RV | South Dakota | 1950 | 48 | 14.6 m | |
| ASH CK | South Dakota | 1955 | 48 | 19.2 m | |
| REDWATER RV | South Dakota | 1920 | 47 | 13.4 m | |
| BELLE FOURCHE RV | South Dakota | 1995 | 47 | 73.8 m | |
| INDIAN CK | South Dakota | 1950 | 47 | 35.4 m | |
| HILDER BRAND CK | South Dakota | 1985 | 47 | 7.6 m | |
| HORSE CK | South Dakota | 1958 | 47 | 9.8 m | |
| CK | South Dakota | 1960 | 47 | 7.3 m | |
| HORSE CK | South Dakota | 1950 | 47 | 30.8 m | |
| DRY CK | South Dakota | 1970 | 47 | 24.4 m | |
| HORSE CK | South Dakota | 1978 | 47 | 42.7 m | |
| CK | South Dakota | 1950 | 47 | 18.9 m | |
| DRY RUN CK | South Dakota | 1935 | 47 | 15.2 m | |
| HORSE CK | South Dakota | 1937 | 46 | 21.9 m | |
| TRIB TO SPLIT ROCK CK | South Dakota | 1938 | 46 | 6.3 m | |
| WILLOW CK | South Dakota | 1950 | 46 | 32.6 m | |
| TRIB. TO FINNIE CREEK | South Dakota | 1935 | 45 | 14.0 m | |
| SPRING CREEK | South Dakota | 1930 | 45 | 16.3 m | |
| CK | South Dakota | 1987 | 45 | 9.8 m | |
| TRIB. TO MEDICINE CREEK | South Dakota | 1930 | 45 | 12.2 m | |
| COBB CK | South Dakota | 1950 | 45 | 8.6 m | |
| BIG SIOUX RV | South Dakota | 1958 | 45 | 9.1 m | |
| LAKE CAMPBELL INLET | South Dakota | 1978 | 45 | 15.2 m | |
| CHEYENNE RV | South Dakota | 1930 | 45 | 463.3 m | |
| MITCHELL CK | South Dakota | 1955 | 45 | 31.1 m | |
| CK | South Dakota | 1950 | 45 | 9.8 m | |
| EAST UNION CK | South Dakota | 1950 | 45 | 12.3 m | |
| CK | South Dakota | 1940 | 45 | 7.5 m | |
| W. FORK OF VERMILLION RV | South Dakota | 1961 | 45 | 11.6 m | |
| CK | South Dakota | 1983 | 45 | 7.8 m | |
| CK | South Dakota | 1983 | 45 | 8.1 m | |
| BROOKFIELD CREEK | South Dakota | 1920 | 45 | 6.3 m | |
| CK | South Dakota | 1982 | 45 | 8.5 m | |
| TWELVE MILE CK | South Dakota | 1982 | 45 | 12.4 m | |
| SOUTH FORK TWELVE MILE C | South Dakota | 1984 | 45 | 7.8 m | |
| TWELVE MILE CK | South Dakota | 1978 | 45 | 15.2 m | |
| SOUTH FORK TWELVE MILE C | South Dakota | 1983 | 45 | 20.1 m | |
| LONETREE CK | South Dakota | 1984 | 45 | 9.3 m | |
| DRAINAGE DITCH | South Dakota | 1983 | 45 | 12.3 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.