I 15 over Sep High Bridge RD
Fair Condition40 years old2,185 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 3.7m N Clark Canyon Dam |
| Carries | I 15 |
| Crosses | Sep High Bridge RD |
| Coordinates | 45.05297, -112.81086 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 29.9 ft (9.1 m) |
| Deck Width | 40.4 ft (12.3 m) |
| Deck Area | 300.1 sq m |
| Main Spans | 3 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 2,185 (2023) |
| Truck Traffic | 25% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015048+07472 |