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 | 1961 | 25 | 7.6 m | |
| CREEK | South Dakota | 1930 | 24 | 8.5 m | |
| ENEMY CK | South Dakota | 2021 | 23 | 18.4 m | |
| BEAVER DAM CK | South Dakota | 1966 | 23 | 26.8 m | |
| INDIAN CK | South Dakota | 1940 | 22 | 43.0 m | |
| SOUTH FORK MOREAU RV | South Dakota | 1930 | 22 | 91.1 m | |
| BIG COULEE CREEK | South Dakota | 1950 | 22 | 7.5 m | |
| BIG SLOUGH CREEK | South Dakota | 1930 | 22 | 7.3 m | |
| BIG SLOUGH CREEK | South Dakota | 1955 | 22 | 7.6 m | |
| TURTLE CREEK | South Dakota | 1935 | 22 | 24.4 m | |
| WHITE CLAY CREEK | South Dakota | 1965 | 21 | 25.8 m | |
| JAMES RIVER | South Dakota | 1959 | 21 | 88.1 m | |
| CREEK | South Dakota | 1934 | 20 | 20.1 m | |
| EMANUEL CREEK | South Dakota | 1905 | 20 | 19.9 m | |
| GARDEN CK | South Dakota | 1940 | 20 | 9.9 m | |
| GRAND RIVER | South Dakota | 1990 | 20 | 42.7 m | |
| CK | South Dakota | 1945 | 20 | 7.6 m | |
| CK | South Dakota | 1912 | 20 | 7.6 m | |
| COAL CK | South Dakota | 1940 | 20 | 46.9 m | |
| BURLINGTON NORTHERN RR | South Dakota | 1945 | 20 | 64.0 m | |
| INDIAN RIVER | South Dakota | 1936 | 20 | 24.4 m | |
| CK | South Dakota | 1927 | 20 | 15.9 m | |
| CK | South Dakota | 1925 | 20 | 20.1 m | |
| CK | South Dakota | 1985 | 20 | 9.2 m | |
| FIRESTEEL CK | South Dakota | 1937 | 20 | 37.2 m | |
| MORRIS CK | South Dakota | 1937 | 20 | 6.8 m | |
| EAST BRULE CREEK | South Dakota | 1950 | 20 | 8.5 m | |
| ROCK CK | South Dakota | 1930 | 20 | 7.6 m | |
| ROCK CK | South Dakota | 1930 | 20 | 8.1 m | |
| BIG SIOUX RIVER | South Dakota | 1983 | 20 | 33.5 m | |
| TRIB TO CHEYENNE RIVER | South Dakota | 1935 | 20 | 14.9 m | |
| CREEK | South Dakota | 1965 | 20 | 11.0 m | |
| N. FORK WHETSTONE RV | South Dakota | 1929 | 20 | 7.6 m | |
| CREEK | South Dakota | 1950 | 20 | 7.5 m | |
| CREEK | South Dakota | 1967 | 20 | 7.9 m | |
| OKOBOJO CREEK | South Dakota | 1961 | 20 | 18.9 m | |
| OKOBOJO CK | South Dakota | 1962 | 20 | 18.9 m | |
| MOCASSIN CK | South Dakota | 1924 | 20 | 18.4 m | |
| CK | South Dakota | 1930 | 19 | 16.9 m | |
| CK | South Dakota | 1965 | 18 | 7.9 m | |
| ELM CK | South Dakota | 1930 | 18 | 9.8 m | |
| CAIN CK | South Dakota | 1925 | 18 | 9.8 m | |
| CREEK | South Dakota | 1935 | 17 | 7.3 m | |
| LANCE CK | South Dakota | 1930 | 17 | 18.9 m | |
| CK | South Dakota | 1930 | 16 | 18.9 m | |
| CREEK | South Dakota | 1965 | 16 | 10.1 m | |
| JAMES RV | South Dakota | 1973 | 16 | 39.6 m | |
| SOUTH FORK PEARL CK | South Dakota | 1930 | 15 | 7.1 m | |
| REDSTONE CK | South Dakota | 1935 | 15 | 7.4 m | |
| REDSTONE CK | South Dakota | 1950 | 15 | 7.3 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.