IRR County RD over I029
Fair Condition48 years old68 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 4 N Sd 15 Interch |
| Carries | IRR County RD |
| Crosses | I029 |
| Coordinates | 45.45661, -96.98884 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 292.3 ft (89.1 m) |
| Max Span | 111.9 ft (34.1 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 944.5 sq m |
| Main Spans | 2 |
| Year Built | 1978 |
Traffic
| Avg Daily Traffic | 68 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000055115330 |