US 287 over South Willow Creek
Poor Condition92 years old4,102 vehicles/day
Location
| State | Montana |
| County | Madison |
| Location | Harrison |
| Carries | US 287 |
| Crosses | South Willow Creek |
| Coordinates | 45.69524, -111.78410 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 39.0 ft (11.9 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 37.1 ft (11.3 m) |
| Deck Area | 134.5 sq m |
| Main Spans | 2 |
| Year Built | 1934 (reconstructed 1976) |
Traffic
| Avg Daily Traffic | 4,102 (2023) |
| Truck Traffic | 4% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00013075+01321 |