S 72 over Clarks Fork Yellowstone
Good Condition56 years old1,507 vehicles/day
Location
| State | Montana |
| County | Carbon |
| Location | 5m S Belfry |
| Carries | S 72 |
| Crosses | Clarks Fork Yellowstone |
| Coordinates | 45.07479, -109.03532 |
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 | 260.8 ft (79.5 m) |
| Max Span | 86.9 ft (26.5 m) |
| Deck Width | 40.4 ft (12.3 m) |
| Deck Area | 977.9 sq m |
| Main Spans | 3 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 1,507 (2023) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00072005+03821 |