SR 525 - Mukilteo Multimodal Terminal: What to expect during construction

June construction update

The Mukilteo ferry terminal site is humming with activity. IMCO Construction mobilized in January and is currently building the passenger and maintenace buildings, toll booths, holding and exit lanes, and the new First Street. The in-water work will begin later this summer. It's another milestone on the way to replacing the current 62-year old seismically vulnerable ferry terminal with a new one designed to reduce traffic congestion and pedestrian/vehicle conflicts during ferry loading and unloading. The ferry terminal, holding lanes, and overhead bridge for walk-on passengers are designed to handle the projected ridership growth for this route.

Here's what else is going on now. 

Major truck haul is complete 
For the past several weeks, trucks hauled in fill for the future holding lanes. Trucks traveled down SR 525 and along a special haul route into the work zone. That work wrapped up in early June. 

Steel structure being erected

The first floor and elevator shafts of the passenger building are up and the steel structure is being erected around them now. The two-story builidng will have elevators anchoring its east and west ends. 

Mukilteo terminal steel structure 

From this angle looking at the southwest side of the building (below), it's easy to imagine the gently sloping, south-facing roof that will be covered in solar panels to collect and store energy for use in the terminal. 

Mukilteo terminal steel structure

Maintenance building and toll booths shaping up next
Crews are working in all corners of the site, with the maintenance building (the slab forms for which shown below), toll booths, and holding lanes in progress now.

Mukilteo ferry maintenance building

Popular Mukilteo pedestrian trail closed until early fall
The popular pedestrian trail closed in late March and will remain closed through early fall so crews can begin work on the new First Street. The portion of the trail that's closed begins at the Sounder station and runs through the end of the work zone, as shown in the graphic below. Please obey signs posted at the gate near NOAA and at the Sounder station the indicate areas closed off to the public. Please do not cross the train tracks to access the beach. This is a busy route for train traffic, and pedestrians and trains do not mix. Thank you for your patience with this and other construction activities. 

Popular Mukilteo pedestrian trail closed until early fall

General work hours: Weekdays 7 a.m. to 6 p.m. and Saturdays 9 a.m. to 5 p.m. We don’t anticipate work on Sundays. Also, there will be no in-water work during the fish migration window – mid February through July – to protect migrating fish, in accordance with National Marine Fisheries Service, United States Fish and Wildlife, and Washington State Department of Fish and Wildlife requirements.

Construction lights will be directed away from our terminal neighbors.

Looking ahead to a terminal designed to be LEED Silver-certified and light on the earth

Mukilteo terminal design / Mukilteo green design thumbnail

This site that formerly housed an abandoned U.S. Air Force fueling pier will soon be home to a building that’s light on the earth, integrating solar panels, natural ventilation, rain water harvesting, enhanced stormwater treatment, native plantings, and other green design elements into its design. This honors our commitments to tribal partners and the city of Mukilteo. Tribal cooperation was key to the project’s design. Terminal, toll booths, and other structures incorporate tribal cultural elements.

The project is one part of a larger redevelopment plan for Mukilteo's waterfront, which will include a replacement of the nearby NOAA research station, improved beach and trail access, the addition of mixed-use buildings, and more.