IRR I029 N over 460 AVE
Good Condition49 years old2,675 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 1.9 NE Sd 15 Interch |
| Carries | IRR I029 N |
| Crosses | 460 AVE |
| Coordinates | 45.42732, -97.00126 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 99.4 ft (30.3 m) |
| Max Span | 35.4 ft (10.8 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 393.9 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 2,675 (2024) |
| Truck Traffic | 55% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000055109350 |