IRR BIA RTE 12 over Big Cottonwood Creek
Fair Condition57 years old217 vehicles/day
Location
| State | South Dakota |
| County | Ziebach |
| Location | 14 Km NE Of Cherry Creek |
| Carries | IRR BIA RTE 12 |
| Crosses | Big Cottonwood Creek |
| Coordinates | 44.67436, -101.40477 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 94.2 ft (28.7 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 31.8 ft (9.7 m) |
| Deck Area | 278.4 sq m |
| Main Spans | 3 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 217 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000A012 |