US 287 over Missouri River
Good Condition6 years old5,250 vehicles/day
Location
| State | Montana |
| County | Broadwater |
| Location | Toston |
| Carries | US 287 |
| Crosses | Missouri River |
| Coordinates | 46.17400, -111.44572 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 661.1 ft (201.5 m) |
| Max Span | 185.0 ft (56.4 m) |
| Deck Width | 65.9 ft (20.1 m) |
| Deck Area | 4050.2 sq m |
| Main Spans | 4 |
| Year Built | 2020 |
Traffic
| Avg Daily Traffic | 5,250 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 4 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000202005332 |