47860 307th ST over West Union Ck
Good Condition76 years old500 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | 6s & 0.4w Alcester |
| Carries | 47860 307th ST |
| Crosses | West Union Ck |
| Coordinates | 42.93806, -96.63357 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 7.9 ft (2.4 m) |
| Deck Area | 60.0 sq m |
| Main Spans | 3 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 500 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064086100 |