Sd050 over Marne Ck
Good Condition46 years old4,096 vehicles/day
Location
| State | South Dakota |
| County | Yankton |
| Location | 1.3 W Jct US 81 |
| Carries | Sd050 |
| Crosses | Marne Ck |
| Coordinates | 42.90904, -97.42411 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 7 — Countermeasures installed |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 317.2 sq m |
| Main Spans | 1 |
| Year Built | 1980 |
Traffic
| Avg Daily Traffic | 4,096 (2024) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000068107180 |