459th Avenue over Trib. To Big Sioux River
Good Condition26 years old375 vehicles/day
Location
| State | South Dakota |
| County | Hamlin |
| Location | 3.3n Of Castlewood |
| Carries | 459th Avenue |
| Crosses | Trib. To Big Sioux River |
| Coordinates | 44.78191, -97.02640 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 20.7 ft (6.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 46.0 sq m |
| Main Spans | 2 |
| Year Built | 2000 |
Traffic
| Avg Daily Traffic | 375 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 48 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000029230017 |