I 90 over Little Blackfoot River
Good Condition47 years old5,232 vehicles/day
Location
| State | Montana |
| County | Powell |
| Location | 1.2m S Garrison |
| Carries | I 90 |
| Crosses | Little Blackfoot River |
| Coordinates | 46.51570, -112.79550 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 130.9 ft (39.9 m) |
| Max Span | 65.0 ft (19.8 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 538.6 sq m |
| Main Spans | 2 |
| Year Built | 1979 |
Traffic
| Avg Daily Traffic | 5,232 (2023) |
| Truck Traffic | 20% |
| Lanes On 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 | I00090175+02152 |