SR 18 Diverging Diamond Interchange
Sector: Road • Location: Snoqualmie, Washington, United States
Source: Snoqualmie Valley Record
The project involved constructing a diverging diamond interchange on State Route 18 under the I-90 bridges in Snoqualmie. This interchange switches traffic to opposite sides to improve safety and traffic flow. The project also includes adding two lanes to the highway, a traffic signal-controlled U-turn, new bridges over Raging River, and habitat improvements for wildlife.
- Status
- Closed
- Sector
- Road, Government
- Location
- Snoqualmie, Washington, United States of America
- Updated
- 22 Jul 2026
- Source
- Snoqualmie Valley Record
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Project Information
Participants
Sponsoring Agency |
Status
Original status | completed |
Taiyo status | Closed |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The project involved constructing a diverging diamond interchange on State Route 18 under the I-90 bridges in Snoqualmie. This interchange switches traffic to opposite sides to improve safety and traffic flow. The project also includes adding two lanes to the highway, a traffic signal-controlled U-turn, new bridges over Raging River, and habitat improvements for wildlife. |
Original sector | Transportation |
Location
Country | United States of America (USA) |
State | Washington |
City | Snoqualmie |
Source
Source | Snoqualmie Valley Record |
URL |
More Details
Record type | Project |
Sector | Road, Government |
Article published date | 2025-09-16 |
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