I 15 over Sep County RD 203
Good Condition53 years old1,926 vehicles/day
Location
| State | Montana |
| County | Beaverhead |
| Location | 11.2m S Melrose |
| Carries | I 15 |
| Crosses | Sep County RD 203 |
| Coordinates | 45.43682, -112.70673 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 119.1 ft (36.3 m) |
| Max Span | 49.9 ft (15.2 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 486.4 sq m |
| Main Spans | 3 |
| Year Built | 1973 |
Traffic
| Avg Daily Traffic | 1,926 (2023) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 124 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015079+00122 |