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 |
|---|---|---|---|---|---|
| CK | South Dakota | 1952 | 160 | 15.1 m | |
| VERMILLION RV OVERFLOW | South Dakota | 1970 | 150 | 20.4 m | |
| SNAKE CREEK | South Dakota | 1959 | 150 | 40.5 m | |
| SADDLE CREEK | South Dakota | 1938 | 150 | 20.1 m | |
| WEST REDSTONE CK | South Dakota | 1930 | 148 | 9.8 m | |
| CK | South Dakota | 1971 | 147 | 11.0 m | |
| JAMES RIVER | South Dakota | 1955 | 146 | 87.2 m | |
| CREEK | South Dakota | 1929 | 144 | 6.3 m | |
| CK | South Dakota | 1950 | 139 | 11.0 m | |
| CREEK | South Dakota | 1939 | 138 | 7.5 m | |
| TRIB. TO W BRULE CREEK | South Dakota | 1940 | 137 | 9.7 m | |
| CK | South Dakota | 1973 | 137 | 15.5 m | |
| N FORK OF SNAKE CREEK | South Dakota | 1979 | 136 | 19.8 m | |
| BIG SIOUX RIVER | South Dakota | 1930 | 135 | 18.9 m | |
| ANTELOPE CK | South Dakota | 1935 | 130 | 31.7 m | |
| BEAVER CREEK | South Dakota | 1940 | 130 | 16.2 m | |
| S FORK SNAKE CREEK | South Dakota | 1964 | 130 | 29.9 m | |
| ANTELOPE CK | South Dakota | 1951 | 128 | 28.3 m | |
| EMANUEL CREEK | South Dakota | 1975 | 127 | 15.5 m | |
| SIXMILE CK | South Dakota | 1966 | 127 | 11.1 m | |
| TURTLE CREEK | South Dakota | 1909 | 126 | 29.9 m | |
| CLAY CK | South Dakota | 1983 | 125 | 19.1 m | |
| DRAINAGE CHANNEL | South Dakota | 1977 | 125 | 9.8 m | |
| OAHE DAM SPILLWAY | South Dakota | 1963 | 123 | 140.2 m | |
| SILVER CREEK | South Dakota | 1930 | 120 | 10.1 m | |
| CREEK | South Dakota | 1935 | 120 | 6.1 m | |
| S. FORK OF PEARL CREEK | South Dakota | 1935 | 120 | 22.3 m | |
| JIM CK | South Dakota | 1930 | 120 | 12.2 m | |
| MIDDLE PEARL CREEK | South Dakota | 1930 | 119 | 15.8 m | |
| S FORK OF BEAVER CREEK | South Dakota | 1963 | 117 | 24.4 m | |
| HIDEWOOD CREEK | South Dakota | 1930 | 115 | 24.5 m | |
| TRIB. TO CHOTEAU CREEK | South Dakota | 1935 | 115 | 7.5 m | |
| CREEK | South Dakota | 1926 | 115 | 6.4 m | |
| ROSEBUD CREEK | South Dakota | 1971 | 114 | 11.3 m | |
| CREEK | South Dakota | 1974 | 114 | 9.4 m | |
| EAST UNION CK | South Dakota | 1950 | 110 | 15.4 m | |
| CK | South Dakota | 1977 | 108 | 8.8 m | |
| BEAVER CK | South Dakota | 1971 | 108 | 11.3 m | |
| VIRGIN CREEK | South Dakota | 1961 | 105 | 45.1 m | |
| CAIN CREEK | South Dakota | 1930 | 105 | 33.8 m | |
| LAKE WHITEWOOD | South Dakota | 1978 | 104 | 7.4 m | |
| BEAR CREEK | South Dakota | 1960 | 103 | 45.4 m | |
| WILLOW CK | South Dakota | 1974 | 102 | 14.8 m | |
| CK | South Dakota | 1917 | 101 | 7.3 m | |
| CK | South Dakota | 1926 | 100 | 15.8 m | |
| CK | South Dakota | 1926 | 100 | 15.8 m | |
| FALSE BOTTOM CK | South Dakota | 1970 | 100 | 12.3 m | |
| FALSE BOTTOM CK | South Dakota | 1977 | 100 | 10.9 m | |
| DRAINAGE DITCH | South Dakota | 1985 | 100 | 15.2 m | |
| CREEK | South Dakota | 1930 | 100 | 9.8 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.