Frontage Road 146 over Drainage 032
Good Condition95 years old100 vehicles/day
Location
| State | Montana |
| County | Deer Lodge |
| Location | 3m S Warm Springs |
| Carries | Frontage Road 146 |
| Crosses | Drainage 032 |
| Coordinates | 46.14269, -112.79540 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 30.8 ft (9.4 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 39.7 ft (12.1 m) |
| Deck Area | 113.7 sq m |
| Main Spans | 1 |
| Year Built | 1931 (reconstructed 1940) |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L12146001+09001 |