Us081 over Marne Ck
Fair Condition67 years old16,870 vehicles/day
Location
| State | South Dakota |
| County | Yankton |
| Location | 0.4 N Jct Sd 50 |
| Carries | Us081 |
| Crosses | Marne Ck |
| Coordinates | 42.87708, -97.39688 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 119.4 ft (36.4 m) |
| Max Span | 42.7 ft (13 m) |
| Deck Width | 89.6 ft (27.3 m) |
| Deck Area | 993.7 sq m |
| Main Spans | 3 |
| Year Built | 1959 |
Traffic
| Avg Daily Traffic | 16,870 (2024) |
| Truck Traffic | 5% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000068120203 |