US 93 over Rock Creek
Good Condition36 years old4,628 vehicles/day
Location
| State | Montana |
| County | Ravalli |
| Location | 4m N Darby |
| Carries | US 93 |
| Crosses | Rock Creek |
| Coordinates | 46.08237, -114.16999 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 101.0 ft (30.8 m) |
| Max Span | 100.1 ft (30.5 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 397.3 sq m |
| Main Spans | 1 |
| Year Built | 1990 |
Traffic
| Avg Daily Traffic | 4,628 (2023) |
| Truck Traffic | 1% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00007034+09841 |