483 Avenue over Cobb Ck
Good Condition70 years old280 vehicles/day
Location
| State | South Dakota |
| County | Deuel |
| Location | 12n Astoria |
| Carries | 483 Avenue |
| Crosses | Cobb Ck |
| Coordinates | 44.73292, -96.54134 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 83.0 ft (25.3 m) |
| Max Span | 22.6 ft (6.9 m) |
| Deck Width | 28.2 ft (8.6 m) |
| Deck Area | 217.6 sq m |
| Main Spans | 4 |
| Year Built | 1956 |
Traffic
| Avg Daily Traffic | 280 (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 | 000000020170170 |