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 |
|---|---|---|---|---|---|
| SIX MILE CK | South Dakota | 1940 | 92 | 27.6 m | |
| DEER CK | South Dakota | 1930 | 92 | 9.4 m | |
| MEDARY CK | South Dakota | 1968 | 92 | 17.5 m | |
| CK | South Dakota | 1930 | 92 | 9.2 m | |
| CK | South Dakota | 1920 | 92 | 15.5 m | |
| CK | South Dakota | 1913 | 92 | 13.1 m | |
| CK | South Dakota | 1930 | 92 | 6.2 m | |
| CK | South Dakota | 1941 | 92 | 16.1 m | |
| CK | South Dakota | 1993 | 92 | 12.2 m | |
| CREEK | South Dakota | 1930 | 91 | 18.3 m | |
| HIDEWOOD CK | South Dakota | 1978 | 90 | 19.8 m | |
| CK | South Dakota | 1950 | 89 | 13.8 m | |
| TRIB TO SNATCH CK | South Dakota | 1940 | 88 | 6.4 m | |
| CREEK | South Dakota | 1909 | 85 | 25.0 m | |
| PONY CK | South Dakota | 1939 | 81 | 12.8 m | |
| SOUTH FORK TWELVE MILE C | South Dakota | 1930 | 81 | 7.3 m | |
| SLIP-UP CREEK | South Dakota | 1938 | 80 | 12.9 m | |
| BLIND CREEK | South Dakota | 1941 | 80 | 20.4 m | |
| WILD RICE CREEK | South Dakota | 1935 | 80 | 8.8 m | |
| TRIB TO SKUNK CK | South Dakota | 1952 | 78 | 9.8 m | |
| TURTLE CREEK | South Dakota | 1965 | 78 | 38.7 m | |
| WEST PIPESTONE CREEK | South Dakota | 1940 | 76 | 27.4 m | |
| CREEK | South Dakota | 1929 | 76 | 19.5 m | |
| CK | South Dakota | 1974 | 75 | 17.5 m | |
| TRIB. TO E BRULE CREEK | South Dakota | 1976 | 75 | 11.0 m | |
| TURKEY CREEK | South Dakota | 1979 | 75 | 12.4 m | |
| TURKEY CREEK | South Dakota | 1991 | 75 | 12.6 m | |
| ROCK CK | South Dakota | 1901 | 75 | 9.8 m | |
| SOUTH CANAL | South Dakota | 1968 | 75 | 12.2 m | |
| CK | South Dakota | 1964 | 75 | 22.6 m | |
| CK | South Dakota | 1965 | 75 | 16.2 m | |
| BEAVER CREEK | South Dakota | 1935 | 74 | 18.5 m | |
| CK | South Dakota | 1940 | 73 | 7.3 m | |
| BIG SIOUX RV | South Dakota | 1920 | 73 | 25.3 m | |
| WILLOW CK | South Dakota | 1910 | 73 | 12.5 m | |
| CASTLE CK | South Dakota | 1950 | 73 | 7.9 m | |
| WEST PIPESTONE CREEK | South Dakota | 1940 | 71 | 18.3 m | |
| NORTH BR TWELVE MILE CK | South Dakota | 1972 | 71 | 8.4 m | |
| NO MOUTH CREEK | South Dakota | 1960 | 70 | 30.7 m | |
| SAND CK | South Dakota | 1940 | 70 | 36.6 m | |
| COLTON CK | South Dakota | 1940 | 70 | 15.2 m | |
| ROCK CK | South Dakota | 1983 | 70 | 19.8 m | |
| CK | South Dakota | 1992 | 70 | 8.4 m | |
| CK | South Dakota | 1932 | 70 | 6.7 m | |
| CREEK | South Dakota | 1928 | 69 | 7.9 m | |
| SPRING CREEK | South Dakota | 1915 | 69 | 9.4 m | |
| TRIB. TO BIG SIOUX RIVER | South Dakota | 1915 | 69 | 9.1 m | |
| DRY CK | South Dakota | 1941 | 69 | 11.1 m | |
| WHITEWOOD CK | South Dakota | 1979 | 69 | 18.6 m | |
| SOUTH BR LONETREE CK | South Dakota | 1960 | 69 | 8.4 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.