US 2 over Porcupine Creek Overflow
Fair Condition20 years old1,584 vehicles/day
Location
| State | Montana |
| County | Valley |
| Location | 1m E Nashua |
| Carries | US 2 |
| Crosses | Porcupine Creek Overflow |
| Coordinates | 48.13247, -106.32503 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 127.3 ft (38.8 m) |
| Max Span | 126.3 ft (38.5 m) |
| Deck Width | 41.7 ft (12.7 m) |
| Deck Area | 492.8 sq m |
| Main Spans | 1 |
| Year Built | 2006 |
Traffic
| Avg Daily Traffic | 1,584 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00001557+03001 |