Old HWY 85 over Four Mile Ck
Poor Condition81 years old25 vehicles/day
Location
| State | South Dakota |
| County | Butte |
| Location | 4.2e 32.8n B Fourche |
| Carries | Old HWY 85 |
| Crosses | Four Mile Ck |
| Coordinates | 45.14757, -103.76751 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 4 (Poor) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 103.0 ft (31.4 m) |
| Max Span | 24.9 ft (7.6 m) |
| Deck Width | 21.7 ft (6.6 m) |
| Deck Area | 207.2 sq m |
| Main Spans | 4 |
| Year Built | 1945 |
Traffic
| Avg Daily Traffic | 25 (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 | 000000010142047 |