I-90/SR 18 Diverging Diamond Interchange and Widening Project
Sector: Road • Location: Snoqualmie, Washington, United States
Source: Living Snoqualmie
The project involves the installation of a diverging diamond interchange at the I-90 and State Route 18 junction south of Snoqualmie, including widening over 2 miles of SR 18 from two to four lanes. It includes construction of three new bridges, new traffic cameras, and safety, stormwater, fish passage, and habitat enhancements along the corridor.
- Status
- Under Construction
- Sector
- Road
- Location
- Snoqualmie, Washington, United States of America
- Updated
- 22 Jul 2026
- Source
- Living Snoqualmie
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Project Information
Participants
| Not available for this record. |
Status
Original status | under construction |
Taiyo status | Under Construction |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | The project involves the installation of a diverging diamond interchange at the I-90 and State Route 18 junction south of Snoqualmie, including widening over 2 miles of SR 18 from two to four lanes. It includes construction of three new bridges, new traffic cameras, and safety, stormwater, fish passage, and habitat enhancements along the corridor. |
Original sector | Transportation |
Location
Country | United States of America (USA) |
State | Washington |
City | Snoqualmie |
Source
Source | Living Snoqualmie |
URL |
More Details
Record type | Project |
Sector | Road |
Article published date | 2026-04-12 |
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