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SR 520 Multi-Modal Corridor Planning Study Stakeholders' Group

WSDOT and other local agencies and businesses are working together to address mobility issues on SR 520 from I-405 in Bellevue to Avondale Road in Redmond. WSDOT, with review and input from the stakeholders, will make multi-modal improvement recommendations for the study corridor based on analysis produced during the study process. The stakeholders’ group is comprised of the following agencies and businesses:

Stakeholders' Group Members

  • City of Bellevue
  • City of Kirkland
  • City of Redmond
  • City of Sammamish
  • Group Health Cooperative
  • Kemper Development
  • King County Metro Transit
  • King County Roads
  • Microsoft
  • Puget Sound Regional Council
  • Sound Transit
  • Wright Runstad & Company

Meeting Calendar


Meeting Date Highlights Materials
September 29, 2011 Introductions, study background information, vision & goals, charter, scope of work Meeting Agenda (pdf 47 kb)
DRAFT Charter (pdf 135 kb)
DRAFT Vision & Goals (pdf 88 kb)
DRAFT Milestone Schedule (pdf 41kb)
DRAFT Study Schedule (pdf 194 kb)
DRAFT SOW (pdf 313 kb)
Meeting Notes (pdf 327 kb)
November 10, 2011 Performance measure evaluation, identify needs by category, projects map Meeting Agenda (pdf 65 kb)
Identified Needs by Category (pdf 158 kb)
Performance Measures (pdf 127 kb)
Meeting Notes (pdf 278)
December 15, 2011 JTC presentation, performance measures, legislative project list Meeting Agenda (pdf 129 kb)
Joint Transporation Commttee Presentation (pdf 862 kb)
SR 520 Project Map (pdf 68 kb)
Meeting Notes (pdf 168 kb)
February 2, 2012 Status report, methodologies and assumptions, project evaluation criteria, one-pager Meeting Agenda (pdf 67 kb)
Status Report (pdf 247 kb)
Draft Methodologies & Assumptions Memo (pdf 645 kb)
Final Visions and Goals (pdf 88 kb)
Draft Project Evalutation Critera ( pdf 221 kb)
One Pager (pdf 445 kb)
Methodologies and Assumptions Presentation (pdf 830 kb)
Draft 2012 Leg Request (pdf 299 kb)
Meeting Minutes (pdf 383 kb)
February 9, 2011             Technical Committee Meeting             Agenda (pdf 67 kb)
Meeting Minutes (pdf 232 kb)
June 28, 2012             Project schedule update, review non-motorized concepts, review traffic analysis results     Agenda (pdf 233 kb)
Meeting Minutes (pdf 225 kb)
Sign-In Sheet (pdf 233 kb)
Schedule Update (pdf 44kb)
Modeling Methodologies and Assumptions (474 kb)
Non-Motorized Trail Options Project Area Map (1.6 mb)
Non-Motorized Trail Options (pdf 3.5 mb)
Description of Non-Motorized Improvement Concepts (130 kb)
Map of Potential Safety Operational Issues (pdf 182 kb)
Project Evaluation Criteria (pdf 151 kb)
August 16, 2012 Stakeholders reviewed the draft motorized recommendations Agenda (pdf 69 kb)
Meeting Minutes (pdf 24 kb)
Sign-In Sheet (pdf 1.8 mb)
Motorized Analysis (pdf 1.4 mb)
Motorized Concepts (pdf 721 kb)