Old Highway 18 over Mickelson Trail
Good Condition3 years old50 vehicles/day
Location
| State | South Dakota |
| County | Fall River |
| Location | 4e & 1.8n Edgemont |
| Carries | Old Highway 18 |
| Crosses | Mickelson Trail |
| Coordinates | 43.32996, -103.73422 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 178.1 ft (54.3 m) |
| Max Span | 92.8 ft (28.3 m) |
| Deck Width | 30.5 ft (9.3 m) |
| Deck Area | 505.0 sq m |
| Main Spans | 2 |
| Year Built | 2023 |
Traffic
| Avg Daily Traffic | 50 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000024162102 |