397th Ave. over Sand Ck
Poor Condition106 years old35 vehicles/day
Location
| State | South Dakota |
| County | Sanborn |
| Location | 7.5n Woonsocket |
| Carries | 397th Ave. |
| Crosses | Sand Ck |
| Coordinates | 44.16302, -98.27116 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 60.0 ft (18.3 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 21.0 ft (6.4 m) |
| Deck Area | 117.1 sq m |
| Main Spans | 2 |
| Year Built | 1920 |
Traffic
| Avg Daily Traffic | 35 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000056030025 |