476th Avenue over Six Mile Ck
Poor Condition76 years old92 vehicles/day
Location
| State | South Dakota |
| County | Brookings |
| Location | 1.4s & 2w White |
| Carries | 476th Avenue |
| Crosses | Six Mile Ck |
| Coordinates | 44.41399, -96.68668 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 33.8 ft (10.3 m) |
| Max Span | 32.8 ft (10 m) |
| Deck Width | 18.0 ft (5.5 m) |
| Deck Area | 56.6 sq m |
| Main Spans | 1 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 92 (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 | 000000006220089 |