399th Avenue over Enemy Ck
Poor Condition91 years old64 vehicles/day
Location
| State | South Dakota |
| County | Davison |
| Location | 4.3s & 2e Mt Vernon |
| Carries | 399th Avenue |
| Crosses | Enemy Ck |
| Coordinates | 43.63880, -98.22559 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 42.0 ft (12.8 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 126.7 sq m |
| Main Spans | 1 |
| Year Built | 1935 (reconstructed 1965) |
Traffic
| Avg Daily Traffic | 64 (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 | 000000018050143 |