Rock CR Dam RD over Rock Creek 098
Fair Condition71 years old100 vehicles/day
Location
| State | Montana |
| County | Valley |
| Location | 6m N Hinsdale |
| Carries | Rock CR Dam RD |
| Crosses | Rock Creek 098 |
| Coordinates | 48.46714, -107.03498 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 4 (Poor) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel |
| Design | Truss - Thru |
| Total Length | 131.9 ft (40.2 m) |
| Max Span | 71.9 ft (21.9 m) |
| Deck Width | 21.3 ft (6.5 m) |
| Deck Area | 261.3 sq m |
| Main Spans | 1 |
| Year Built | 1955 (reconstructed 1998) |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 524 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L53014001+09001 |