WSDOT Projects

Project Map


I-5/S. 320th Street Interchange

Project Facts

• Federal Way is the 7th largest city in Washington state.
• The city of Federal Way has seen a 25% increase in population since 1990.
• The project is a partnership among WSDOT, the city of Federal Way, the Federal Highway Administration, and the Puget Sound Regional Council.

The city of Federal Way, in partnership with WSDOT, is considering options to reduce collisions and traffic congestion at the S. 320th Street interchange with I-5. This project will also improve access to the Federal Way City Center.

Why is WSDOT partnering with the city of Federal Way to improve I-5 access?
Traffic volumes in the city of Federal Way are expected to greatly increase in the next 20 years, due to projected growth in south King and north Pierce counties.

The End Result
The Environmental Assessment will propose a project that may modify the I-5/S. 320th Street interchange. The city of Federal Way will select a preferred alternative that will improve existing and future traffic circulation, reduce the number and severity of collisions in the vicinity of the I-5/S. 320th Street Interchange, and avoid or reduce the affects on the environment.

Project Benefits

• Safety: The preferred option would reduce collisions near the S. 320th Street interchange with I-5.
• Congestion relief: This project will also improve existing and future traffic circulation in and around the Federal Way City Center.

What is the project timeline?

• November 2007: Began environmental assessment
• Spring 2009: Select a preferred alternative
• Fall 2009: Begin early project design
• January/February 2010: Complete the environmental documentation

Public Involvement
The public will have opportunities to comment throughout the study. Scoping meetings, public stakeholder meetings, special interest group meetings, and open houses will provide opportunities for members of the public to share questions and concerns about the project. Please visit the city of Federal Way's Draft Public Involvement Plan for more information.

Environmental Protection
WSDOT makes every effort to assess and minimize environmental impacts from our projects. When we designed these projects, we worked to reduce the effects on wetlands, creeks and rivers that could be in the project area.

WSDOT will partner with the city of Federal Way, King County and the Federal Highway Administration to provide preliminary environmental review.
Please visit the WSDOT Environmental Services Web site for more information.

Increasing safety is one of our priorities
There are safety deficiencies at the I-5/S. 320th Street interchange. This project will reduce the number and severity of traffic collisions near the Federal Way City Center.

Will this project impact tribal resources?
At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.

Financial Information
This phase of the project is funded by the city of Federal Way.

How can I get more information?
Contact:
City of Federal Way Project Manager
Maryanne Zukowski, P.E.
253-835-2707
citycenteraccessproject@cityoffederalway.com

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