Sd1806 over Antelope Ck
Good Condition45 years old279 vehicles/day
Location
| State | South Dakota |
| County | Stanley |
| Location | 11.2 SE Jct US 83 |
| Carries | Sd1806 |
| Crosses | Antelope Ck |
| Coordinates | 44.30188, -100.17996 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 119.1 ft (36.3 m) |
| Max Span | 42.7 ft (13 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 384.8 sq m |
| Main Spans | 3 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 279 (2024) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000059493328 |