I-405 and SR 167 Eastside Corridor Tolling - Final Reports

I-405/SR 167 Corridor Funding and Phasing Report
This report describes the results of the work WSDOT undertook in response to the Washington State Legislature’s 2011 direction in RCW 47.56.886, which authorized express toll lanes on I-405 between Bellevue and Lynnwood. The Legislature directed WSDOT to:

  • Develop a plan to fund improvements in the I-405 and SR 167 corridor, including an express toll lanes system operating on the corridor and completion of corridor capacity improvements.
  • Consult with a committee of local and state elected officials, as well as transit agency representatives, from the I-405 and SR 167 corridor while developing this plan.
  • Provide a final report to the Governor and Legislature.

Scope and Recommendations
This report covers funding and phasing for Phase 2, which would complete the express toll lanes system between Bellevue and Renton and connect with the SR 167 HOT lanes. Related to funding and phasing, the report also covers carpool policy for Phase 1 of the express toll lanes, which is currently under construction between Bellevue and Lynnwood.

  • Carpool policy: 3+ carpool free peak/2+ carpool free off-peak is a workable transition to 3+ carpool free; has least impact on commuters, transit, financial needs; and maintains speeds of 45 mph or better.
  • Funding and phasing: The medium traditional funding option was endorsed because it funds the Renton to Bellevue section and the I-405/SR 167 Direct Connector; Phase 2 needs to move
    forward as soon as possible.

I-405/SR 167 Corridor Funding and Phasing Report (pdf 3.6 Mb) 

Executive Summary folio (pdf 469 kb)


Appendix 1 -
Traffic and Revenue study
2012 Planning Level Traffic and Revenue Study (pdf 2 Mb)
prepared by CDM Smith

Appendix 2 - Net revenue tables
Net revenue tables for carpool scenarios (pdf 536 kb)

Appendix 3 - Public information and Executive Advisory Group materials

I-405/SR 167 Tolling Study - Expert Review Panel Final Report and Appendices
In response to the Eastside Corridor Tolling Study Final Report (below), a panel of five transportation experts from around the country met with WSDOT and provided insight on the department’s study. The panel met three times beginning in September 2010 and shared their progress with elected officials from the I-405/SR 167 corridor. Their final report addresses four areas of interest, including policy, methodology, phasing and finances.

Summary Report:
I-405/SR 167 Expert Review Panel Final Report (pdf 5 MB)

Executive Summary folio (pdf 900 kb)


Appendix A
- Expert Review Panel Meeting Presentations and Summaries
Appendix B -
Draft Preliminary Findings and Overall Themes (pdf 72 kb)

Appendix C - I-405/SR 167 Traffic Performance Projections Overview and Questions & Answers one-sheet (pdf 876 kb)

Appendix D - Review of Regional Model (pdf 18 kb)

Appendix E - Summary of Regional, State and Federal Policies (pdf 29 kb)

Appendix F - Limitations of WSDOT’s Level 2 (Preliminary Study)
Modeling Analysis
(pdf 9 kb)

Appendix G - Case Study of I-95 Express Lanes in Miami (pdf 161 kb)

Appendix H - Expert Review Panel Process Questions (pdf 36 kb)

Appendix I - Long-Term Concessions for Megaprojects with Public-Private Partnerships (pdf 81 kb)

Eastside Corridor Tolling Study - Final Report and Appendices
In May 2009, the Washington State Legislature directed WSDOT to conduct a traffic and revenue study including potential funding for future improvements and high occupancy toll (HOT) or express toll lanes on I-405. The Legislature directed WSDOT to undertake the following activities as part of the study (Transportation Budget - ESSB 5352):

  • Develop a plan to operate up to two express toll lanes in each direction on I-405
  • Confer with the mayors and city councils for jurisdictions impacted by express toll lanes
  • Engage the public to solicit their view points and identify concerns

The final task in the legislative charge is to provide a report to the Governor and the Legislature by January 2010. The following is the final report for the Eastside Corridor Tolling Study provided to the Legislature on January 21, 2010.

Summary Report:
Low Res (pdf 4 MB)
High Res (pdf 9 MB)

Executive Summary folio (pdf 2 MB)


Appendix 1
- Concept of Operations (pdf 1.6 MB)

Appendix 2 - Traffic and Revenue Summary and Analysis:
    a. Traffic and Revenue Study Summary (pdf 2 MB)
    b. 2009 Wilbur Smith Associates - I-405/SR 167 Express Toll Lanes:
        Planning Level Traffic and Revenue Study (pdf 5 MB)

Appendix 3 - Operating and Maintenance Costs Summary (pdf 87 kb)

Appendix 4 - Financial Feasibility Analysis (pdf 389 kb)

Appendix 5 - Public Involvement Materials: 
    a. Public Involvement Summary (pdf 297 kb) 
    b. Online Survey Report (pdf 2.6 MB) 
    c. Telephone Survey Report (pdf 2 MB) 
        - App. A: Final Phone Survey (pdf 178 kb)
        - App. B: i. Weighted Top Line Results pages 1-12 (pdf 3.8 MB)
                      ii. Weighted Top Line Results pages 13-23 (pdf 3 MB)
    d. Focus Group Report (pdf 300 kb) 
    e. Open House Summaries 
        - Round 1 (pdf 611 kb)
        - Round 2 (pdf 853 kb)
     f. Summer Outreach Summary (pdf 95 kb) 
    g. Comment Analysis Report and Comment Log (pdf 5 MB) 
    h. Briefings Summary (pdf 79 kb)

Appendix 6 -  Advisory Committee Materials 
    a. Advisory Committee Summary (pdf 91 kb) 
    b. Interagency Working Group 
    c. Executive Advisory Group 
    d. Transit Sub-Group (pdf 534 kb) 
    e. Local Jurisdiction Letters
        - City of Kirkland Legislative Agenda (pdf 153 kb) 
        - Eastside Transportation Partnership Legislative Position 
          Statement (pdf 108 kb)
        - City of Kirkland Letter (pdf 484 kb)

Appendix 7 - Previous Managed Lanes Studies 
    a. History of Managed Lanes Studies (pdf 49 kb) 
    b. I-405 Managed Lanes White Paper (Prepared 2004, Updated April 
        2007) (pdf 3.2 MB) 
    c. 2007 Wilbur Smith Associates – SR 520 to I-5 Widening: Express 
        Toll Lanes Alternative Traffic and Revenue Study
(pdf 4 MB) 
    d. 2008 Wilbur Smith Associates – SR 167 to I-5 Update: Express Toll 
        Lanes Alternative Traffic and Revenue Study
(pdf 565 kb)

* Appendices to the Eastside Corridor Tolling Study include detailed information and analysis that support the findings and observations presented in the summary report. WSDOT will provide copies of appendices upon request by contacting the I-405/SR 167 Program, Corridor Communications, at I405SR167Program@wsdot.wa.gov.