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 |
|---|---|---|---|---|---|
| ABANDON LINE RR | South Dakota | 1930 | 1,000 | 30.8 m | |
| TRIB TO BIG SIOUX RV | South Dakota | 1922 | 994 | 10.4 m | |
| TRIB TO BIG SIOUX RV | South Dakota | 1938 | 974 | 11.1 m | |
| MARNE CREEK | South Dakota | 1978 | 969 | 30.5 m | |
| SLIP-UP CREEK | South Dakota | 1956 | 965 | 16.5 m | |
| CAMPBELL CK | South Dakota | 1963 | 918 | 9.4 m | |
| SOUTH FORK PEARL CK | South Dakota | 1933 | 913 | 9.1 m | |
| BOX ELDER CK | South Dakota | 1973 | 881 | 12.2 m | |
| WILLOW CK | South Dakota | 1979 | 878 | 20.4 m | |
| LITTLE MINNESOTA RV | South Dakota | 1953 | 872 | 63.7 m | |
| MISSOURI RIVER | South Dakota | 1996 | 830 | 900.1 m | |
| WEST FORK VERMILLION RV | South Dakota | 1952 | 758 | 69.8 m | |
| EAST FORK VERMILLION RV | South Dakota | 1958 | 747 | 47.1 m | |
| DEER CK | South Dakota | 1950 | 712 | 9.1 m | |
| SOUTH FORK WHETSTONE RV | South Dakota | 1984 | 696 | 19.8 m | |
| CHAPELLE CK | South Dakota | 1949 | 691 | 59.9 m | |
| SOUTH FORK SNAKE CK | South Dakota | 1939 | 688 | 37.2 m | |
| CK | South Dakota | 1940 | 672 | 20.7 m | |
| JAMES RV | South Dakota | 1956 | 668 | 125.4 m | |
| COUNSELOR CREEK | South Dakota | 1965 | 663 | 28.7 m | |
| BELCHER CK | South Dakota | 1955 | 660 | 36.1 m | |
| SKUNK CK | South Dakota | 1963 | 607 | 39.2 m | |
| CK | South Dakota | 1935 | 597 | 11.9 m | |
| DUPREE CK | South Dakota | 1961 | 590 | 36.1 m | |
| SKUNK CREEK | South Dakota | 1977 | 589 | 44.3 m | |
| FALL RV | South Dakota | 1934 | 588 | 19.5 m | |
| CK | South Dakota | 1950 | 580 | 7.9 m | |
| LONG CK | South Dakota | 1977 | 570 | 12.2 m | |
| CHEYENNE RV | South Dakota | 1962 | 567 | 367.0 m | |
| CREEK | South Dakota | 1961 | 556 | 32.2 m | |
| VERMILLION RV | South Dakota | 1975 | 550 | 88.4 m | |
| CK | South Dakota | 1928 | 538 | 6.2 m | |
| CK | South Dakota | 1972 | 502 | 26.4 m | |
| COUNTY RD RC P&E RR | South Dakota | 1937 | 500 | 77.4 m | |
| SPEARFISH CK | South Dakota | 1975 | 500 | 15.2 m | |
| MOCCASIN CREEK | South Dakota | 1976 | 500 | 18.9 m | |
| GREEN CK | South Dakota | 1985 | 500 | 15.5 m | |
| SADDLE CREEK | South Dakota | 1964 | 495 | 44.2 m | |
| WILLOW CK | South Dakota | 2001 | 472 | 15.2 m | |
| BIG SIOUX RV | South Dakota | 1971 | 468 | 34.1 m | |
| NORTH DEER CK | South Dakota | 1925 | 462 | 22.6 m | |
| CK | South Dakota | 1958 | 462 | 9.4 m | |
| SPLIT ROCK CREEK | South Dakota | 1974 | 448 | 77.9 m | |
| WEST BRULE CK | South Dakota | 1960 | 435 | 32.2 m | |
| BOXELDER CK | South Dakota | 1974 | 425 | 21.3 m | |
| BR WEST FORK ELM CK | South Dakota | 1959 | 405 | 8.9 m | |
| TRIB TO SPLIT ROCK CK | South Dakota | 1977 | 398 | 15.8 m | |
| FIRESTEEL CK | South Dakota | 1910 | 390 | 27.4 m | |
| CK | South Dakota | 1930 | 381 | 8.2 m | |
| SPRING CREEK | South Dakota | 1950 | 361 | 18.6 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.