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

April construction update

The next phase of Mukilteo construction -- the biggest and most anticipated part of it -- is underway. IMCO Construction mobilized onsite in January to build the passenger terminal, holding lanes, toll plaza, and waterfront promenade. Activity at the site will heat up as the weather does. Here's the latest.

First passenger building walls are up

After years of planning, the first walls of the new passenger building have gone up at the water's edge. This milestone marks a major stride in the project to replace the 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.

Truck haul route
In mid April, trucks will begin hauling in fill to construct the future holding lanes. This amounts to 6 to 8 trucks per hour moving along a special route set up for them. The route goes down SR 525, enters at the current toll plaza, runs behind the current holding lanes and into the construction site. Trucks will leave using the same route. Trucks will be spread out along the route to prevent congestion in one area.

Truck hauling hours and flaggers
Trucking hours are Monday through Thursday: 7 a.m. to 2:45 p.m. and Fridays 7 a.m. to 1 p.m. Flaggers will be in place during those times to direct traffic, and truck movement will be coordinated so it doesn't interfere with ferry loading and unloading.

Truck haul route

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. We will look for opportunities during construction to open the trail when we aren't working in that area and will notify our Mukilteo neighbors in advance of these openings. 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. Thank you for your patience with this and other construction activities. The end result will be worth the wait when we open the new ferry terminal – and the improved Mukilteo waterfront – in fall 2020.  

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. There will be no pile-driving on Saturdays; 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.

A look ahead: A terminal designed to be 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.