I-90 over Silica RD
Good Condition45 years old8,141 vehicles/day
Location
| State | Washington |
| County | Grant |
| Location | 6.1 E Jct SR 26 |
| Carries | I-90 |
| Crosses | Silica RD |
| Coordinates | 47.02064, -119.94422 |
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 | 123.0 ft (37.5 m) |
| Max Span | 117.1 ft (35.7 m) |
| Deck Width | 41.0 ft (12.5 m) |
| Deck Area | 468.8 sq m |
| Main Spans | 1 |
| Year Built | 1981 |
Traffic
| Avg Daily Traffic | 8,141 (2023) |
| Truck Traffic | 28% |
| Lanes On Bridge | 2 |
| 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 | 0011975A0000000 |