East corridor/I-90 analysis

 

When the Sound Transit Board of Directors adopted the updated Long-Range Plan in July 2005, they also directed staff to complete additional analyses for the East Corridor, primarily focused on the I-90 Corridor. The analyses includes a load test to simulate light rail operation on the I-90 bridge, an analysis of the rail joint on the I-90 bridge and a traffic analysis (to be completed by the Washington State Department of Transportation). In addition, a report summarizing the forty-year history of analysis of high capacity transit on I-90 was also prepared. These reports can be found below.

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East Corridor/I-90 Papers

I-90 Structural Feasibility Study: Monorail Conversion

• Page 1: Executive Summary
• Page 2: Introduction
• Page 3: Reference & Design Criteria
• Pages 4-10: Monorail at Grade with HOV Lanes
• Pages 10-12: Monorail Elevated
• Pages 12-13: Vertical Clearance/Additional Work
• Appendix A: Figures
• Appendix B: Ultimate Capacities
• Appendix C: Beam Top Coat Product Data
• Appendix D: Monorail Vertical Clearance Review

I-90 Floating Bridge Test Program for Light Rail Transit

• Fact Sheet
• Table of Contents
• Cover, Table of Contents & Report Text
• Appendix A-Figures
• Appendix A-Tables
• Appendix B-Part 1
• Appendix B-Part 2
• Appendix B-Part 3
• Appendix B-Part 4
• Appendix B-Part 5
• Appendix B-Part 6
• Appendix C-Traffic Data Count
• Appendix D-Site Conditions Data
• Appendix E-Data File Names and Format
• Appendix F-Part 1
• Appendix F-Part 2

Additional I-90 Studies

• Past and Present I-90/East Corridor HCT Alternative Studies
• Summary sheet: History of Research, I-90 High Capacity Transit
• East Corridor HCT: Summary of I-90 Floating Bridge Studies-Report
• East Corridor HCT: Summary of I-90 Floating Bridge Studies-Attachments
• Summary Sheet: Proven Technology Viable for I-90 Floating Bridge