Hidden Timber Road over Antelope Ck
Poor Condition75 years old128 vehicles/day
Location
| State | South Dakota |
| County | Todd |
| Location | 9 E 3.8 S Mission |
| Carries | Hidden Timber Road |
| Crosses | Antelope Ck |
| Coordinates | 43.25187, -100.47145 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 92.8 ft (28.3 m) |
| Max Span | 35.1 ft (10.7 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 243.4 sq m |
| Main Spans | 3 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 128 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000061390096 |