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 |
|---|---|---|---|---|---|
| MOCCASIN CK | South Dakota | 1954 | 21,635 | 36.4 m | |
| BIG SIOUX RIVER | South Dakota | 1979 | 13,800 | 78.5 m | |
| BIG SIOUX RIVER | South Dakota | 1986 | 9,363 | 98.8 m | |
| SD038 | South Dakota | 1989 | 8,815 | 72.9 m | |
| 302 ST (FAS 6372) | South Dakota | 1960 | 8,020 | 36.3 m | |
| BIG SIOUX RV | South Dakota | 1966 | 7,985 | 121.4 m | |
| BIG SIOUX RV | South Dakota | 1966 | 7,985 | 121.4 m | |
| CAPITOL LAKE OUTLET | South Dakota | 1950 | 7,155 | 20.9 m | |
| BIG SIOUX RIVER | South Dakota | 1975 | 5,300 | 124.1 m | |
| BIG SIOUX RV | South Dakota | 1974 | 4,970 | 30.5 m | |
| RAPID CK | South Dakota | 1974 | 4,700 | 55.5 m | |
| R&W RR | South Dakota | 1952 | 4,431 | 64.7 m | |
| SPEARFISH CK | South Dakota | 1988 | 3,981 | 25.0 m | |
| MARNE CREEK | South Dakota | 1976 | 3,980 | 12.3 m | |
| CK | South Dakota | 1946 | 3,776 | 9.4 m | |
| JAMES RV | South Dakota | 1960 | 3,601 | 99.5 m | |
| WEST PIPESTONE CK | South Dakota | 1953 | 3,442 | 56.7 m | |
| ELM RV | South Dakota | 1959 | 3,041 | 88.8 m | |
| CK | South Dakota | 1974 | 2,666 | 6.2 m | |
| R&W RR | South Dakota | 1953 | 2,622 | 76.0 m | |
| BNSF RAILROAD | South Dakota | 1914 | 2,560 | 69.5 m | |
| BIG SIOUX RIVER | South Dakota | 1966 | 2,419 | 98.8 m | |
| HORSE CK | South Dakota | 1947 | 2,378 | 9.8 m | |
| MOCCASIN CREEK | South Dakota | 1974 | 2,069 | 19.2 m | |
| MILLER CK | South Dakota | 1934 | 2,000 | 7.3 m | |
| WILLOW CREEK | South Dakota | 1990 | 1,904 | 13.1 m | |
| LITTLE WHITE RIVER | South Dakota | 1972 | 1,851 | 33.5 m | |
| ICE BOX CK | South Dakota | 1964 | 1,725 | 8.9 m | |
| NORTH BR DRY CK | South Dakota | 1964 | 1,651 | 26.4 m | |
| CK | South Dakota | 1959 | 1,559 | 6.3 m | |
| CROW CK | South Dakota | 1940 | 1,500 | 18.9 m | |
| BIG SIOUX RV | South Dakota | 1940 | 1,499 | 24.4 m | |
| TRIB TO SKUNK CK | South Dakota | 1982 | 1,492 | 12.8 m | |
| CREEK | South Dakota | 1930 | 1,400 | 8.2 m | |
| CLAYMORE CK | South Dakota | 1958 | 1,378 | 76.7 m | |
| BIG SIOUX RV | South Dakota | 1930 | 1,330 | 23.5 m | |
| POTATO CREEK | South Dakota | 1942 | 1,314 | 20.7 m | |
| CK | South Dakota | 1925 | 1,305 | 16.0 m | |
| MEDARY CK | South Dakota | 1938 | 1,275 | 23.2 m | |
| BOX ELDER CK | South Dakota | 1950 | 1,214 | 14.3 m | |
| TRIB TO BIG SIOUX RV | South Dakota | 1955 | 1,204 | 16.5 m | |
| MAHONEY CK | South Dakota | 1940 | 1,167 | 24.2 m | |
| BR NORTH DEER CK | South Dakota | 1925 | 1,163 | 28.1 m | |
| CK | South Dakota | 1950 | 1,159 | 27.7 m | |
| SKUNK CK | South Dakota | 1953 | 1,135 | 28.0 m | |
| LITTLE WHITE RIVER | South Dakota | 1967 | 1,050 | 30.2 m | |
| LITTLE WHITE RIVER | South Dakota | 1967 | 1,050 | 30.2 m | |
| LITTLE WHITE RIVER | South Dakota | 1965 | 1,019 | 30.2 m | |
| BEAVER CREEK | South Dakota | 1967 | 1,006 | 36.3 m | |
| CENTER LAKE INLET | South Dakota | 1950 | 1,000 | 7.4 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.