IRR 117 ST over I029
Fair Condition44 years old16 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 2.0 N Sd 10 & I29 Interch |
| Carries | IRR 117 ST |
| Crosses | I029 |
| Coordinates | 45.68894, -96.96975 |
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 | 330.1 ft (100.6 m) |
| Max Span | 101.0 ft (30.8 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 1066.4 sq m |
| Main Spans | 4 |
| Year Built | 1982 |
Traffic
| Avg Daily Traffic | 16 (2023) |
| Truck Traffic | 2% |
| 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 | 000000055124170 |