IRR I029 N over Drainage Ditch
Fair Condition46 years old2,570 vehicles/day
Location
| State | South Dakota |
| County | Roberts |
| Location | 5.5 NE Sd 10 Interch |
| Carries | IRR I029 N |
| Crosses | Drainage Ditch |
| Coordinates | 45.73278, -96.93986 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 27.9 ft (8.5 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 317.2 sq m |
| Main Spans | 3 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 2,570 (2024) |
| Truck Traffic | 43% |
| Lanes On 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 | 000000055140140 |