Tierney Loop DR over Musselshell River 008
Good Condition38 years old100 vehicles/day
Location
| State | Montana |
| County | Wheatland |
| Location | 4m E Harlowton |
| Carries | Tierney Loop DR |
| Crosses | Musselshell River 008 |
| Coordinates | 46.41389, -109.73983 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 147.0 ft (44.8 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 27.2 ft (8.3 m) |
| Deck Area | 371.8 sq m |
| Main Spans | 3 |
| Year Built | 1988 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L54021000+06001 |