Sd231 Ser RD over Blackhawk Ck
Good Condition69 years old7,310 vehicles/day
Location
| State | South Dakota |
| County | Meade |
| Location | 1.0 N Pennington Co Line |
| Carries | Sd231 Ser RD |
| Crosses | Blackhawk Ck |
| Coordinates | 44.15299, -103.30930 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Culvert |
| Total Length | 44.0 ft (13.4 m) |
| Max Span | 14.1 ft (4.3 m) |
| Deck Area | 448.9 sq m |
| Main Spans | 3 |
| Year Built | 1957 (reconstructed 2000) |
Traffic
| Avg Daily Traffic | 7,310 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 622 |
| Inspection Frequency | Every 48 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000047131612 |