S 83 Fh 15 over Lost Creek
Poor Condition73 years old1,246 vehicles/day
Location
| State | Montana |
| County | Lake |
| Location | 3m S Swan Lake |
| Carries | S 83 Fh 15 |
| Crosses | Lost Creek |
| Coordinates | 47.87379, -113.83426 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 58.1 ft (17.7 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 166.4 sq m |
| Main Spans | 3 |
| Year Built | 1953 |
Traffic
| Avg Daily Traffic | 1,246 (2023) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00083067+02881 |