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520 Bridge ReBuilding Plan Updates

   
 

 

The Washington State Department of Transportation (WSDOT) is considering options for replacing and expanding the 520 bridge across Lake Washington. This construction project will have significant impacts on the Washington Park Arboretum.

Letter & resolution (pdf files) from the Committee urging consideration of less damaging options for the 520 bridge replacement, including the Green Alternative and Arboretum Bypass/Union Bay Alternative.

Union Bay Alerternative
(also known as the Arboretum Bypass Plan)
as envisioned by Craig Dalby

Read more about this plan:
Detailed Description
February 9th Article in the Seattle P.I.

Arboretum Bypass Plan
(click to view larger image)

Arboretum Bypass Plan Map
(click image to see larger version)

 


Projected Impact of Pacific Interchange Alternative

Union Bay View
View across Union Bay from Laurelhurst today

Pacific Interchange Artist's Depiction
Artist's depiction of view across Union Bay from Laurelhurst with Pacific Interchange option
(Digital images provided by Legal Media Expert Group & Tunnel Tube Alliance)

 

Additional 520 Documents and Articles

  • Arboretum and Botanic Garden Committee position paper (pdf) sent to WSDOT outlining their goals for protecting the Arboretum’s plant collections and natural resources
  • The Tunnel-Tube Alliance presentation (pdf) to WSDOT of an alternative option with additional images of the impact the Pacific Interchange is projected to make on the environment
  • Guiding Principles for the 520 Replacement Project by the University of Washington
  • University of Washington Presentation (pdf) to the Board of Regents with maps, discussion of impacts and concerns
  • April 9, 2007 article in Seattle P.I. on funding concerns
  • October 31 article in Seattle P.I.: Tranquil Arboretum caught in 520 storm
  • Seattle P.I. opinion article written by ABGC members about the 520 bridge on September 27,2006
  • Pacific Interchange article in the Seattle P.I.
  • Madison Park Times article on neighborhood group opinions
  • Visit the Washington State Department of Transportation web site with information about the project, draft SR-520 Environmental Impact Statement,
  • at http://www.wsdot.wa.gov/projects/SR520Bridge/ . The public comment period ended October 31, 2006.