Thunderhead Falls over Rapid Ck
Good Condition2 years old62 vehicles/day
Location
| State | South Dakota |
| County | Pennington |
| Location | 0.8e 1.8s Johnson Sd |
| Carries | Thunderhead Falls |
| Crosses | Rapid Ck |
| Coordinates | 44.05821, -103.41940 |
Condition Ratings
| Overall Condition | Good |
| Deck | 9 (Excellent) |
| Superstructure | 9 (Excellent) |
| Substructure | 9 (Excellent) |
| Channel/Waterway | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Frame |
| Total Length | 44.0 ft (13.4 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 25.6 ft (7.8 m) |
| Deck Area | 104.5 sq m |
| Main Spans | 1 |
| Year Built | 2024 |
Traffic
| Avg Daily Traffic | 62 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000052316316 |