400th Avenue over Ck
Poor Condition81 years old20 vehicles/day
Location
| State | South Dakota |
| County | Davison |
| Location | 3 E Mt Vernon |
| Carries | 400th Avenue |
| Crosses | Ck |
| Coordinates | 43.70813, -98.20547 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 22.0 ft (6.7 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 55.5 sq m |
| Main Spans | 1 |
| Year Built | 1945 (reconstructed 1965) |
Traffic
| Avg Daily Traffic | 20 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000018060095 |