I 15 over Boulder Rvr-frontage RD
Fair Condition44 years old3,856 vehicles/day
Location
| State | Montana |
| County | Jefferson |
| Location | 1.9m E Basin |
| Carries | I 15 |
| Crosses | Boulder Rvr-frontage RD |
| Coordinates | 46.26921, -112.21849 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 151.9 ft (46.3 m) |
| Max Span | 81.0 ft (24.7 m) |
| Deck Width | 102.4 ft (31.2 m) |
| Deck Area | 1444.6 sq m |
| Main Spans | 2 |
| Year Built | 1982 |
Traffic
| Avg Daily Traffic | 3,856 (2023) |
| Truck Traffic | 13% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 2 |
Inspection & Ownership
| Last Inspection | 624 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015158+03561 |