427 AVE over Rock Ck
Poor Condition125 years old75 vehicles/day
Location
| State | South Dakota |
| County | Miner |
| Location | 2.0e & 1.6s Carthage |
| Carries | 427 AVE |
| Crosses | Rock Ck |
| Coordinates | 44.14396, -97.67034 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete |
| Design | Channel Beam |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 30.8 ft (9.4 m) |
| Deck Width | 24.9 ft (7.6 m) |
| Deck Area | 74.5 sq m |
| Main Spans | 1 |
| Year Built | 1901 |
Traffic
| Avg Daily Traffic | 75 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000049090036 |