S 1 over Boulder Creek
Fair Condition40 years old1,144 vehicles/day
Location
| State | Montana |
| County | Granite |
| Location | Maxville |
| Carries | S 1 |
| Crosses | Boulder Creek |
| Coordinates | 46.47019, -113.23467 |
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 |
| Design | Stringer/Multi-beam |
| Total Length | 84.0 ft (25.6 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 36.4 ft (11.1 m) |
| Deck Area | 284.2 sq m |
| Main Spans | 1 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 1,144 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00019049+00211 |