239th St. over Rock Ck
Poor Condition116 years old5 vehicles/day
Location
| State | South Dakota |
| County | Miner |
| Location | 6s & 6.5w Howard |
| Carries | 239th St. |
| Crosses | Rock Ck |
| Coordinates | 43.92167, -97.65994 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 4 (Poor) |
| Superstructure | 3 (Serious) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 26.9 ft (8.2 m) |
| Max Span | 24.0 ft (7.3 m) |
| Deck Width | 18.0 ft (5.5 m) |
| Deck Area | 45.1 sq m |
| Main Spans | 1 |
| Year Built | 1910 |
Traffic
| Avg Daily Traffic | 5 (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 on the National Register of Historic Places |
| Structure Number | 000000049095190 |