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Project Title & Location
SR 520 Bridge Replacement and HOV Project
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Project Description
The overall program will replace the SR 520 corridor from I-5 to I-405 and reconfigure the existing HOV lanes east of I-405. This program is currently funded to complete environmental documentation and replace the Evergreen Point Bridge from Foster Island to Medina.
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Contractor/Consultant
EIS – Parametrix, Public Involvement – EnviroIssues, General Engineering - HDR
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Recent Progress
- Presented Eastside Corridor Concept Plan and Project Update to Hunts Point Town
Hall Meeting and Juanita Neighborhood Association
- Completed preliminary geotechnical investigation for retaining walls, maintenance
facility on the Eastside
- Complete 10% Corridor Design
- Kicked off 30% for Floating Bridge and Eastside
- Continued in-depth discussions with mediation panel member on Westside design
options
- Conducted expert review panel on tunnel construction for Westside design options
- Continued negotiations for Eastside Right of Way parcels
For more project information see the project web page at:
www.wsdot.wa.gov/projects/SR520bridge
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Design Construction Impacts
The anticipated start of major construction is spring of 2011. The project has received $52 million from the 2003 Nickel Package, $496 million from the 2005 Transportation Partnership Account, and $1,391 million of other State and Federal funds. This money will be used for the completion of the Environmental Impact Statement, project design, right-of-way purchases and to begin construction. Completion of project construction depends on additional funding from potential tolling, and other sources.
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Environmental Impacts / Compliance
A Draft EIS with a thorough analysis of the project alternatives and options was issued in August 2006. Project has started work on a Supplemental Draft EIS incorporating the 4+2 lane configuration as identified by the Governor and legislators. A Draft EIS for Pontoon Construction is now in development and is expected to be issued in the spring of 2009
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Impacts to Traffic
Traffic impacts in the corridor have not yet been fully determined. Pontoons for the new floating bridge will be constructed offsite and brought in through the Ballard Locks. The new floating bridge will be built to the north of the existing bridge allowing traffic to continue use the exisiting bridge during construction.
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Milestones |
Scheduled |
Attained |
Milestone Outlook |
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Begin Preliminary Engineering
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Fall 2003
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Fall 2003
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The fall of 2003 the SR 520 Bridge Replacement and HOV Project began design study in support of the corridor EIS.
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Environmental Document (EIS Record of Decision) Complete
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Spring 2011
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Draft EIS was issued in August 2006. Supplemental Draft EIS is expected to be issued in late spring 2009.
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Right of Way Certification
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Summer 2012
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This date is for completion of all Right of Way acquisitions in the SR 520 corridor.
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Advertisement Date
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Fall 2010
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This date is for advertisement of the first major construction project in the SR 520 corridor. Offsite Construction of pontoons will begin sooner
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Operationally Complete
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Fall of 2018
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Completion of major construction in the corridor. New Floating Bridge is scheduled for opening in the fall of 2014 (March 2008 announcement by Governor Gregoire to advance bridge opening and corridor completion)
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