US 287 over Madison River
Fair Condition58 years old4,098 vehicles/day
Location
| State | Montana |
| County | Gallatin |
| Location | 3m N West Yellowstone |
| Carries | US 287 |
| Crosses | Madison River |
| Coordinates | 44.71559, -111.10291 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 138.1 ft (42.1 m) |
| Max Span | 44.9 ft (13.7 m) |
| Deck Width | 43.0 ft (13.1 m) |
| Deck Area | 551.5 sq m |
| Main Spans | 3 |
| Year Built | 1968 |
Traffic
| Avg Daily Traffic | 4,098 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00050003+07221 |