47930 311th ST over West Union Ck
Fair Condition45 years old100 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | 9.5s & 0.3e Alcester |
| Carries | 47930 311th ST |
| Crosses | West Union Ck |
| Coordinates | 42.88021, -96.61881 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 40.7 ft (12.4 m) |
| Max Span | 38.7 ft (11.8 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 106.6 sq m |
| Main Spans | 1 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 100 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064093140 |