SR 99 Tunnel Project
Sector: Tunnel • Location: Seattle, Washington, United States
Source: Tunnel Business Magazine
On April 29, 2016, the TBM left Safe Haven #3, where it had completed 1,500 ft of bored tunnel, to tunnel under the Alaskan Way Viaduct.
- Status
- Under Construction
- Sector
- Tunnel, Bridge
- Location
- Seattle, Washington, United States of America
- Updated
- 22 Jul 2026
- Source
- Tunnel Business Magazine
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Project Information
Participants
Company |
Status
Original status | Under Construction |
Taiyo status | Under Construction |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | On April 29, 2016, the TBM left Safe Haven #3, where it had completed 1,500 ft of bored tunnel, to tunnel under the Alaskan Way Viaduct. |
Location
Country | United States of America (USA) |
State | Washington |
City | Seattle |
Source
Source | Tunnel Business Magazine |
URL |
More Details
Record type | Project |
Sector | Tunnel, Bridge |
Article published date | 2025-03-20 |
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