Old Yellowstone Tr over Rock Creek
Good Condition8 years old100 vehicles/day
Location
| State | Montana |
| County | Park |
| Location | 18 M NW Gardiner |
| Carries | Old Yellowstone Tr |
| Crosses | Rock Creek |
| Coordinates | 45.21082, -110.90357 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 51.8 ft (15.8 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 134.3 sq m |
| Main Spans | 1 |
| Year Built | 2018 |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000201907098 |