IRR Ar Us083 over Horse Head Ck
Fair Condition60 years old1,525 vehicles/day
Location
| State | South Dakota |
| County | Mellette |
| Location | 3.1 S Jct Sd 44 E |
| Carries | IRR Ar Us083 |
| Crosses | Horse Head Ck |
| Coordinates | 43.49022, -100.73904 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 8 (Very Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 147.0 ft (44.8 m) |
| Max Span | 55.1 ft (16.8 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 582.4 sq m |
| Main Spans | 3 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 1,525 (2024) |
| Truck Traffic | 19% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 223 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000048256262 |