IRR Sd1806 over Burlington Northern Rr
Fair Condition53 years old826 vehicles/day
Location
| State | South Dakota |
| County | Corson |
| Location | 3.0 N Jct US 12 |
| Carries | IRR Sd1806 |
| Crosses | Burlington Northern Rr |
| Coordinates | 45.61131, -100.50102 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 203.7 ft (62.1 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 583.7 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 826 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000016732234 |