I 90 over Sep Laird St-frontage RD
Fair Condition59 years old7,361 vehicles/day
Location
| State | Montana |
| County | Silver Bow |
| Location | 3.1m W Rocker |
| Carries | I 90 |
| Crosses | Sep Laird St-frontage RD |
| Coordinates | 46.01020, -112.68944 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Scour Critical | Not applicable |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 158.1 ft (48.2 m) |
| Max Span | 56.1 ft (17.1 m) |
| Deck Width | 45.3 ft (13.8 m) |
| Deck Area | 665.2 sq m |
| Main Spans | 3 |
| Year Built | 1967 |
Traffic
| Avg Daily Traffic | 7,361 (2023) |
| Truck Traffic | 15% |
| 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 | I00090216+06722 |