Sd073 over Grindstone Ck
Fair Condition72 years old700 vehicles/day
Location
| State | South Dakota |
| County | Haakon |
| Location | 2.5 N Jct US 14 |
| Carries | Sd073 |
| Crosses | Grindstone Ck |
| Coordinates | 44.08249, -101.66717 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 118.4 ft (36.1 m) |
| Max Span | 37.7 ft (11.5 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 353.8 sq m |
| Main Spans | 3 |
| Year Built | 1954 |
Traffic
| Avg Daily Traffic | 700 (2024) |
| Truck Traffic | 35% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000028170459 |