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 |
|---|---|---|---|---|---|
| DIVERSION DITCH | South Dakota | 1948 | 26 | 15.2 m | |
| LODGE POLE CK | South Dakota | 1980 | 26 | 13.7 m | |
| RABBIT CK | South Dakota | 1950 | 26 | 62.2 m | |
| DEADMAN CREEK | South Dakota | 1967 | 25 | 7.6 m | |
| FOUR MILE CK | South Dakota | 1945 | 25 | 31.4 m | |
| BATTLE CK | South Dakota | 1945 | 25 | 31.4 m | |
| YANKTON CLAY DITCH | South Dakota | 1938 | 25 | 12.6 m | |
| LONG CK | South Dakota | 1987 | 25 | 13.7 m | |
| ASH CK | South Dakota | 1945 | 25 | 14.0 m | |
| ENEMY CK | South Dakota | 1917 | 25 | 9.8 m | |
| DRY RUN CK | South Dakota | 1935 | 25 | 9.1 m | |
| CK | South Dakota | 1950 | 25 | 6.5 m | |
| MUD CREEK | South Dakota | 1950 | 25 | 10.7 m | |
| COBB CK | South Dakota | 1908 | 25 | 21.7 m | |
| CK | South Dakota | 1930 | 25 | 6.7 m | |
| CK | South Dakota | 1980 | 25 | 7.6 m | |
| CK | South Dakota | 1930 | 25 | 9.4 m | |
| CK | South Dakota | 1926 | 25 | 10.4 m | |
| SOUTH FORK WHETSTONE RV | South Dakota | 1942 | 25 | 10.7 m | |
| CK | South Dakota | 1936 | 25 | 10.4 m | |
| CK | South Dakota | 1901 | 25 | 7.4 m | |
| CK | South Dakota | 1965 | 25 | 6.8 m | |
| WHETSTONE RV | South Dakota | 1962 | 25 | 29.9 m | |
| TRIB. TO BIG SIOUX RIVER | South Dakota | 1930 | 25 | 6.7 m | |
| TURTLE CK | South Dakota | 1925 | 25 | 12.2 m | |
| SHAEFER CK | South Dakota | 1930 | 25 | 7.9 m | |
| PEARL CK | South Dakota | 1920 | 25 | 7.9 m | |
| CK | South Dakota | 1978 | 25 | 9.4 m | |
| Whitewood Creek | South Dakota | 2011 | 25 | 18.4 m | |
| PONY CK | South Dakota | 1986 | 25 | 11.6 m | |
| CK | South Dakota | 1930 | 25 | 9.3 m | |
| SAND CK | South Dakota | 2008 | 25 | 12.2 m | |
| CK | South Dakota | 1935 | 25 | 9.3 m | |
| SADDLE CREEK | South Dakota | 1972 | 25 | 21.5 m | |
| LANGFORD DITCH | South Dakota | 1935 | 25 | 7.9 m | |
| VERMILLION RV | South Dakota | 1985 | 25 | 14.8 m | |
| CK | South Dakota | 1961 | 25 | 7.6 m | |
| Alkali Creek | South Dakota | 2008 | 25 | 7.4 m | |
| ROCK CK | South Dakota | 1925 | 25 | 11.6 m | |
| ROCK CK | South Dakota | 1926 | 25 | 10.1 m | |
| WEST FORK VERMILLION RV | South Dakota | 1961 | 25 | 7.9 m | |
| EAST UNION CK | South Dakota | 1950 | 25 | 9.3 m | |
| ELCE CK | South Dakota | 1950 | 25 | 7.5 m | |
| RAPID CK | South Dakota | 1972 | 25 | 12.5 m | |
| COTTONWOOD CK | South Dakota | 1959 | 25 | 8.2 m | |
| CREEK | South Dakota | 1950 | 25 | 6.7 m | |
| LITTLE MINNESOTA RIVER | South Dakota | 1967 | 25 | 11.3 m | |
| TRIB. TO CLAY CREEK | South Dakota | 1940 | 25 | 6.6 m | |
| CK | South Dakota | 1983 | 25 | 12.3 m | |
| N. FORK WHETSTONE RV | South Dakota | 1967 | 25 | 10.1 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.