IRR BIA Route 8 over East Branch Willow Creek
Good Condition18 years old160 vehicles/day
Location
| State | South Dakota |
| County | Dewey |
| Location | RTE 8 Over E Brch Wil Crk |
| Carries | IRR BIA Route 8 |
| Crosses | East Branch Willow Creek |
| Coordinates | 44.94486, -100.54602 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 100.1 ft (30.5 m) |
| Max Span | 93.8 ft (28.6 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 301.9 sq m |
| Main Spans | 1 |
| Year Built | 2008 |
Traffic
| Avg Daily Traffic | 160 (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 | 00000000000A146 |