Big Lake CR RD over Big Hole River 091
Fair Condition50 years old100 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 8m N Jackson |
| Carries | Big Lake CR RD |
| Crosses | Big Hole River 091 |
| Coordinates | 45.47758, -113.48659 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 62.0 ft (18.9 m) |
| Max Span | 29.5 ft (9 m) |
| Deck Width | 20.0 ft (6.1 m) |
| Deck Area | 115.3 sq m |
| Main Spans | 2 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L01083001+09001 |