IRR Us018 over Trib To Oak Ck
Fair Condition21 years old1,303 vehicles/day
Location
| State | South Dakota |
| County | Todd |
| Location | 9.4 W Tripp Co Line |
| Carries | IRR Us018 |
| Crosses | Trib To Oak Ck |
| Coordinates | 43.36080, -100.39000 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 11.5 ft (3.5 m) |
| Deck Area | 62.0 sq m |
| Main Spans | 2 |
| Year Built | 2005 |
Traffic
| Avg Daily Traffic | 1,303 (2024) |
| Truck Traffic | 17% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2021 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000061431020 |