I 90 over St. Regis Rvr-local RD
Fair Condition47 years old7,448 vehicles/day
Location
| State | Montana |
| County | Mineral |
| Location | 4.3m E De Borgia |
| Carries | I 90 |
| Crosses | St. Regis Rvr-local RD |
| Coordinates | 47.34245, -115.27560 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 637.8 ft (194.4 m) |
| Max Span | 179.1 ft (54.6 m) |
| Deck Width | 88.3 ft (26.9 m) |
| Deck Area | 5229.4 sq m |
| Main Spans | 4 |
| Year Built | 1979 (reconstructed 2009) |
Traffic
| Avg Daily Traffic | 7,448 (2023) |
| Truck Traffic | 26% |
| Lanes On Bridge | 4 |
| Lanes Under Bridge | 1 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090023+03251 |