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4TH STREET AND 88TH STREET NE CORRIDOR IMPROVEMENTS PROJECT

Project Overview

The Tulalip Tribes are planning access improvements to the 4th Street and 88th Street NE interchanges on the I-5 corridor within the boundary of the reservation. Here you will find background information, current status, and a summary schedule of the project.

The Tulalip Tribes of Washington Reservation is accessed via three interchanges on Interstate 5 (I-5) within the eastern boundary of the reservation. These accesses are critically important to The Tulalip Tribes (Tribes) for access to and from the reservation. The only other access to the reservation is via a single county road, 140th Street NE, at the northern boundary and via the waters of the Puget Sound and Snohomish River. Goods, services, higher education, healthcare, jobs, and economic development depend on safe, efficient access to and from the reservation.

Over the past several years, the Tribes implemented major improvements at the 116th Street NE Interchange at the northeast end of the reservation. This interchange improvement addressed capacity needs, congestion relief, and safety improvements for drivers, freight, pedestrians, bicycles, skateboards, roller skates, and public transportation users. The Tribes led and funded nearly all the planning, environmental documentation, design, permitting, and construction of these improvements through several phases of construction. Several agencies also contributed funding to the completion of this project including the Bureau of Indian Affairs (BIA), Federal Highway Administration (FHWA), and Washington State Department of Transportation (WSDOT). The construction of the final phase of improvements at the interchange was completed in the summer of 2020. In total, this project has taken over 10 years to develop and implement at a total cost of over $65 million.

The Tribes are leading the planning for access improvements to the remaining two interchanges on the I-5 corridor within the boundary of the reservation. These two interchanges at 88th Street NE and 4th Street NE/State Route 528/Marine Drive experience congestion and mobility challenges for cars, trucks, pedestrians, and transit users. Frequently, I-5 traffic exiting to enter Tulalip Tribes or the City of Marysville (City) at both interchanges experience off-ramp backups that can extend back on to the I-5 mainline lanes of traffic. This impacts the Tribes and the City as well as the greater Snohomish County area, interstate travel and commerce, and even international trade with Canada. The configuration of the local road connections at the interchanges also hinders commuters, residents, visitors, freight, transit, and non-motorized connections between the Tribes and the City of Marysville. This causes lengthy delays at the signals crossing I-5 between these two communities for commerce and emergency services.

I-5/4th Street and 88th Street NE Corridor Improvements Project

map showing the 4th Street, 88th Street NE, and 116th Street interchanges
map showing the traffic flow at the 4th Street, 88th Street NE, and 116th Street interchanges

I-5 / 4th Street Interchange

Aerial View

aerial view of the I5 / 4th Street interchange

I-5 / 4th Street Interchange

Left:

Aerial View

Below:

Bird's-eye View Facing
East

Bird's-Eye View

Bird’s eye view of the I5 / 4th Street Interchange facing East

I-5 / 88th Street Interchange

Aerial View

aerial view of the I5 / 88th Street NE interchange

I-5 / 88th Street Interchange

Left:

Aerial View

Below:

Bird's-Eye View Facing
Northwest

Bird's-Eye View

Bird’s eye view of the I5 / 88th Street NE Interchange facing Northwest