280th Ave. over Antelope Ck
Good Condition32 years old27 vehicles/day
Location
| State | South Dakota |
| County | Todd |
| Location | 1.9s & 6e Mission |
| Carries | 280th Ave. |
| Crosses | Antelope Ck |
| Coordinates | 43.27549, -100.53096 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 5 (Fair) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 27.2 ft (8.3 m) |
| Max Span | 13.1 ft (4 m) |
| Deck Area | 55.6 sq m |
| Main Spans | 2 |
| Year Built | 1994 |
Traffic
| Avg Daily Traffic | 27 (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 | 000000061360079 |