Sound Transit 3 Underground Stations
Sector: Rail • Location: Seattle, Washington, United States
Source: The Urbanist
Sound Transit 3 (ST3) is the region's most ambitious transit expansion, facing a mounting cost crisis due to oversized underground stations. The project involves constructing underground light rail stations in Seattle that are significantly larger, deeper, and more complex than previous phases, contributing to high costs. The article discusses the opportunity to save hundreds of millions by right-
- Status
- Prospective
- Sector
- Rail, Government
- Location
- Seattle, Washington, United States of America
- Updated
- 22 Jul 2026
- Source
- The Urbanist
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Project Information
Participants
Sponsoring Agency |
Status
Original status | Planned |
Taiyo status | Prospective |
Taiyo last update | 2026-07-22 |
Contact
| Not available for this record. |
Description
Description | Sound Transit 3 (ST3) is the region's most ambitious transit expansion, facing a mounting cost crisis due to oversized underground stations. The project involves constructing underground light rail stations in Seattle that are significantly larger, deeper, and more complex than previous phases, contributing to high costs. The article discusses the opportunity to save hundreds of millions by right-sizing station designs, adopting reference class forecasting, and reforming design and permitting processes. |
Original sector | Transportation |
Location
Country | United States of America (USA) |
State | Washington |
City | Seattle |
Source
Source | The Urbanist |
URL |
More Details
Record type | Project |
Sector | Rail, Government |
Article published date | 2025-06-18 |
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