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The Mukilteo Multimodal Ferry Terminal is updated to current seismic design standards.

Government infrastructure

The nation’s largest ferry system gets new, safer terminal

40 years

since the state of Wash. got a new ferry terminal

4 million passengers

who depend on the Wash. ferry system annually

$4 million

approx. saved through a retaining wall approach developed by Haley & Aldrich


  • Washington State’s Mukilteo Multimodal Ferry Terminal, part of the United States’ largest ferry system, is a major transportation hub in the Seattle metropolitan area. But its 60-year-old building did not meet current seismic standards, and the backlog of waiting ferry passengers caused traffic gridlock.
  • The Washington State Department of Transportation (WSDOT) relied on Haley & Aldrich to provide geotechnical and seismic design solutions as it set out to build a new terminal.
  • We designed the new terminal to meet modern seismic standards and to withstand sea level rise, while saving WSDOT about $4 million by developing an alternate solution for the retaining wall system design.

For more information, contact:

Madan Karkee

Senior Technical Expert, Geotechnical Engineering

Headshot of male, Gary Horvitz

Gary Horvitz

Principal Consultant