IRR - S 438 over E Fork Porcupine Creek
Fair Condition43 years old77 vehicles/day
Location
| State | Montana |
| County | Valley |
| Location | 27m N Nashua |
| Carries | IRR - S 438 |
| Crosses | E Fork Porcupine Creek |
| Coordinates | 48.46197, -106.24489 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 24.9 ft (7.6 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 64.6 sq m |
| Main Spans | 2 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 77 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 224 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00438025+02001 |