S 37 Fh 57 over Kootenai River
Fair Condition57 years old661 vehicles/day
Location
| State | Montana |
| County | Lincoln |
| Location | 3m S Libby Dam |
| Carries | S 37 Fh 57 |
| Crosses | Kootenai River |
| Coordinates | 48.36569, -115.32393 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 1236.9 ft (377 m) |
| Max Span | 175.9 ft (53.6 m) |
| Deck Width | 35.1 ft (10.7 m) |
| Deck Area | 4033.9 sq m |
| Main Spans | 7 |
| Year Built | 1969 |
Traffic
| Avg Daily Traffic | 661 (2023) |
| Truck Traffic | 4% |
| 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 | P00033013+07941 |