485th Avenue over Ck
Poor Condition76 years old139 vehicles/day
Location
| State | South Dakota |
| County | Brookings |
| Location | 1.5n & 7e White |
| Carries | 485th Avenue |
| Crosses | Ck |
| Coordinates | 44.45669, -96.50472 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 36.1 ft (11 m) |
| Max Span | 17.4 ft (5.3 m) |
| Deck Width | 25.9 ft (7.9 m) |
| Deck Area | 86.9 sq m |
| Main Spans | 2 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 139 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000006310059 |