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 | 1950 | 100 | 7.9 m | |
| CK | South Dakota | 1945 | 100 | 8.2 m | |
| BIG SIOUX RV | South Dakota | 1922 | 100 | 43.6 m | |
| UNNAMED CREEK | South Dakota | 1941 | 100 | 16.3 m | |
| CK | South Dakota | 1926 | 100 | 15.8 m | |
| GRACE COOLIDGE CREEK | South Dakota | 1950 | 100 | 8.3 m | |
| CK | South Dakota | 1926 | 100 | 15.8 m | |
| OLD LODGE CK | South Dakota | 1950 | 100 | 23.2 m | |
| DRAINAGE DITCH | South Dakota | 1985 | 100 | 15.2 m | |
| SIX MILE CK | South Dakota | 1967 | 99 | 22.0 m | |
| CHAPELLE CK | South Dakota | 1963 | 99 | 21.9 m | |
| SNAKE CREEK | South Dakota | 1929 | 98 | 29.3 m | |
| WILLOW CREEK | South Dakota | 1968 | 98 | 12.2 m | |
| CREEK | South Dakota | 1930 | 98 | 6.7 m | |
| FOOT CREEK | South Dakota | 1977 | 98 | 18.3 m | |
| MUD CREEK | South Dakota | 1930 | 98 | 25.6 m | |
| MUD CREEK | South Dakota | 1915 | 98 | 16.2 m | |
| JAMES RIVER | South Dakota | 1920 | 98 | 31.1 m | |
| MUD CREEK | South Dakota | 1935 | 98 | 29.9 m | |
| JAMES RIVER | South Dakota | 1900 | 98 | 18.9 m | |
| CREEK | South Dakota | 1935 | 98 | 7.3 m | |
| CREEK | South Dakota | 1935 | 98 | 10.7 m | |
| CREEK | South Dakota | 1935 | 98 | 7.9 m | |
| SOUTH FORK YELLOW BANK R | South Dakota | 1930 | 98 | 16.2 m | |
| CK | South Dakota | 1945 | 97 | 9.1 m | |
| VERMILLION RV | South Dakota | 1970 | 97 | 55.4 m | |
| VERMILLION RV | South Dakota | 1985 | 97 | 19.2 m | |
| VERMILLION RV | South Dakota | 1985 | 97 | 24.5 m | |
| WEST FORK VERMILLION RV | South Dakota | 1992 | 97 | 29.6 m | |
| CLAY CK DITCH | South Dakota | 1900 | 97 | 30.2 m | |
| VERMILLION RV | South Dakota | 1930 | 97 | 46.3 m | |
| BAPTIST CK | South Dakota | 1940 | 97 | 9.1 m | |
| CK | South Dakota | 1969 | 96 | 9.4 m | |
| SOUTH MEDICINE CK | South Dakota | 1964 | 96 | 19.2 m | |
| CK | South Dakota | 1935 | 95 | 6.7 m | |
| BIG SIOUX RV | South Dakota | 1970 | 92 | 24.2 m | |
| BIG SIOUX RV | South Dakota | 1907 | 92 | 22.0 m | |
| BIG SIOUX RV | South Dakota | 1970 | 92 | 34.3 m | |
| CK | South Dakota | 1930 | 92 | 12.0 m | |
| CK | South Dakota | 1930 | 92 | 8.7 m | |
| NORTH DEER CK | South Dakota | 1930 | 92 | 12.9 m | |
| CK | South Dakota | 1930 | 92 | 6.7 m | |
| MEDARY CK | South Dakota | 1910 | 92 | 34.3 m | |
| BR OF NORTH DEER CK | South Dakota | 1940 | 92 | 12.3 m | |
| BR NORTH DEER CK | South Dakota | 1930 | 92 | 8.1 m | |
| CK | South Dakota | 1977 | 92 | 9.5 m | |
| SIXMILE CK | South Dakota | 1940 | 92 | 10.9 m | |
| MEDARY CK | South Dakota | 1930 | 92 | 26.5 m | |
| SIX MILE CK | South Dakota | 1930 | 92 | 16.2 m | |
| SIX MILE CK | South Dakota | 1950 | 92 | 10.3 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.