S 431 over Int Power I 15
Fair Condition54 years old493 vehicles/day
Location
| State | Montana |
| County | Teton |
| Location | Power |
| Carries | S 431 |
| Crosses | Int Power I 15 |
| Coordinates | 47.71225, -111.66002 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 347.4 ft (105.9 m) |
| Max Span | 122.0 ft (37.2 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 1101.4 sq m |
| Main Spans | 4 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 493 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 4 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00431019+08551 |