US 287 over Madison River
Fair Condition25 years old4,500 vehicles/day
Location
| State | Montana |
| County | Madison |
| Location | Ennis |
| Carries | US 287 |
| Crosses | Madison River |
| Coordinates | 45.34739, -111.72250 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 322.5 ft (98.3 m) |
| Max Span | 106.0 ft (32.3 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 1248.4 sq m |
| Main Spans | 3 |
| Year Built | 2001 |
Traffic
| Avg Daily Traffic | 4,500 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00013048+06151 |