IRR BIA RTE 27 over Cottonwood Creek
Fair Condition61 years old916 vehicles/day
Location
| State | South Dakota |
| County | County 102 |
| Location | 8 Km North Of Rockyford |
| Carries | IRR BIA RTE 27 |
| Crosses | Cottonwood Creek |
| Coordinates | 43.54786, -102.48774 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 180.4 ft (55 m) |
| Max Span | 69.9 ft (21.3 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 539 sq m |
| Main Spans | 3 |
| Year Built | 1965 |
Traffic
| Avg Daily Traffic | 916 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | Bureau of Indian Affairs |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 00000000000A021 |