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Webuild unit Lane completes USD 255 million Ship Canal water quality tunnel project in Seattle

PUBT·10/14/2026 11:00:24
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Webuild unit Lane completes USD 255 million Ship Canal water quality tunnel project in Seattle
  • Webuild’s US unit Lane completed Seattle’s Ship Canal Water Quality Project, a stormwater storage tunnel designed to curb sewage overflows.
  • Project value USD 255 million; commissioned by Seattle Public Utilities under a City of Seattle–King County partnership.
  • 4.3-kilometer tunnel with a 5.7-meter internal diameter; storage capacity exceeds 112 million liters during heavy storms.
  • Expected to prevent about 284 million liters of contaminated discharges annually into Lake Washington Ship Canal, Salmon Bay, Lake Union.
  • Tunnel excavation used a roughly 6-meter TBM named MudHoney; completion reinforces Lane’s US underground construction track record.


Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Webuild S.p.A. published the original content used to generate this news brief on October 14, 2026, and is solely responsible for the information contained therein.