County Road 143 over Unnamed Creek 059
Fair Condition76 years old100 vehicles/day
Location
| State | Montana |
| County | Big Horn |
| Location | 34m E Decker |
| Carries | County Road 143 |
| Crosses | Unnamed Creek 059 |
| Coordinates | 45.00208, -106.42539 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 14.4 ft (4.4 m) |
| Deck Area | 32.1 sq m |
| Main Spans | 1 |
| Year Built | 1950 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L02143010+09001 |