US 87 over Marias River
Good Condition38 years old1,417 vehicles/day
Location
| State | Montana |
| County | Chouteau |
| Location | Loma |
| Carries | US 87 |
| Crosses | Marias River |
| Coordinates | 47.93178, -110.50692 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 273.0 ft (83.2 m) |
| Max Span | 101.4 ft (30.9 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 1073.3 sq m |
| Main Spans | 3 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 1,417 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00010051+06521 |