US 12 over Twin Coulee
Fair Condition91 years old448 vehicles/day
Location
| State | Montana |
| County | Golden Valley |
| Location | 1m E Lavina |
| Carries | US 12 |
| Crosses | Twin Coulee |
| Coordinates | 46.30673, -108.90901 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 56.4 ft (17.2 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 139.3 sq m |
| Main Spans | 3 |
| Year Built | 1935 |
Traffic
| Avg Daily Traffic | 448 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00014147+04581 |