485 Avenue over Burlington Northern Rr
Fair Condition48 years old397 vehicles/day
Location
| State | South Dakota |
| County | Grant |
| Location | 1s & 1.5w Big Stone |
| Carries | 485 Avenue |
| Crosses | Burlington Northern Rr |
| Coordinates | 45.27968, -96.49407 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 184.1 ft (56.1 m) |
| Max Span | 70.2 ft (21.4 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 566.6 sq m |
| Main Spans | 3 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 397 (2022) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000026360032 |