Sd047 over Swan Lake Ck
Good Condition3 years old394 vehicles/day
Location
| State | South Dakota |
| County | Walworth |
| Location | 3.9 N Jct Sd 20 |
| Carries | Sd047 |
| Crosses | Swan Lake Ck |
| Coordinates | 45.30333, -99.79084 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 9 (Excellent) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 52.2 ft (15.9 m) |
| Max Span | 12.5 ft (3.8 m) |
| Deck Width | 36.1 ft (11 m) |
| Deck Area | 174.9 sq m |
| Main Spans | 4 |
| Year Built | 2023 |
Traffic
| Avg Daily Traffic | 394 (2024) |
| Truck Traffic | 22% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000065330201 |