WSDOT is preparing an environmental assessment in compliance with the National Environmental Policy Act (NEPA) to evaluate pricing, social and environmental justice, traffic and economic effects as they relate to tolling I-90.
Use the following links to learn more about what's being studied, outreach activities and the proposed I-90 tolling project. You will need Adobe Acrobat version 4.0 or higher to open the documents on this page.
Project Information
Publication | Description | Download |
|---|
| Proposed I-90 Project | Shows potential toll point locations on I-90 and toll equipment that would be used. | Handout (439kb)PDF |
| Where I-90 users come from | Shows where I-90 users come from. Developed from a survey sample of 40,000 I-90 users. | Handout (356kb)PDF |
Tolling Options
| Describes the multiple tolling scenarios that will be evaluated. | Handout (110kb)PDF |
| How Tolling Would Work | Explains electronic tolling and how it would work on I-90. | Handout (331kb)PDF |
| SR 520 Bridge Funding and Cost | Describes the funding needed to complete the SR 520 program. | Handout (74kb)PDF |
| Purpose & Need Statement | Explains the criteria used to developing a range of alternatives. | Handout (133kb)PDF |
| Transportation Fuel Tax | Provides an overview of the transportation fuel tax and how it is committed. | Handout (1mb)PDF |
I-90 Tolling Discussion History
Since 1999, as part of the Trans-Lake Washington Study, the region’s leaders have discussed the possibility of tolling both SR 520 and I-90 to generate revenue to help replace the seismically-vulnerable SR 520 bridge and balance Cross-Lake Washington traffic.
| Date | Study | |
|---|
| 1997 to 2004 | Trans-Lake Washington Study | Evaluated multiple options for a new Lake Washington crossing and decided on a new SR 520 floating bridge |
| 2007 | | Includes a series of projects to help address congestion and increase safety on SR 520 in the Seattle area. |
| 2008 to 2009 | | Engaged community members and local leaders responding to the question: How can tolls work for people who use 520, nearby communities, and taxpayers? |
| 2008 to 2012 | I-90 Bellevue to North Bend Corridor Planning Study | Recommended corridor improvement strategies, growth, increased delays, impacts on freight from Bellevue's Eastgate neighborhood to North Bend. |
| 2009 | SR 520 Legislative Workgroup | Reviewed and recommended a financing strategy to fund the recommended 520 design options. |