WSDOT Projects

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I-5 - Roanoke Vicinity Noise Wall Project


 
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Leaf pattern on Boylston Avenue noise wall
Leaf pattern on Boylston Avenue noise wall


New Boylston Avenue noise wall under construction - downtown Seattle in the background.
Crews erecting the Stage 2 Boylston Avenue wall above a roaring I-5.  More Stage 2 construction photos available in Construction Photos gallery.


Harvard Avenue noise wall
The new Harvard Avenue noise wall (built in Stage 1)


Aerial photo of the Roanoke Park and Eastlake area
Aerial view of the Roanoke Park and Eastlake neighborhoods where new noise walls are now being built along I-5.
Project Facts
  • The project team is designing three additional noise walls in the area.  The first two stages were completed last year.
  • The noise reduction goal is to achieve at least a seven decibel (dBA) decrease along all frontline public spaces and ground-level residences. Note: A 10-dBA reduction in noise will sound half as loud to the human ear. For more info on acoustics and noise walls, visit WSDOT's Air Quality, Acoustics and Energy homepage. It also includes tips on how you can lower noise in and around your home.
  • Construction is anticipated to begin in spring 2008.

Project Status

May 2008

  • WSDOT attended the Eastlake Community Council meeting on January 15, 2008 to share general noise information and project updates for the I-5 Boston to Shelby Noise Wall Project and the I-5 Ship Canal Bridge Noise Reduction Project.
  • WSDOT hosted a community information session on Thursday, August 23, 2007 about landscaping options, noise wall locations, and what the noise wall will look like.
  • Read the latest Project Fact Sheet (pdf 182 kb) on the Boston to Shelby Noise walls.

Why is WSDOT constructing noise walls in this area?
The Seattle neighborhoods of Roanoke Park and Eastlake experience high noise levels from I-5. The original construction of I-5 did not consider noise impacts at the time that it was built, so these neighborhoods are high priorities on the statewide retrofit list.

Noise walls are being designed and constructed to improve the noise environment both for residents and for outdoor enthusiasts.  In addition, everyday activities like walking, gardening and barbeques will become more enjoyable.

The End Result
Installing noise walls along this busy corridor will noticeably reduce I-5-generated noise for the surrounding communities, improving outdoor public spaces and local resident/pedestrian life.

Project Benefits
•  Noise Reduction. The project will noticeably reduce freeway noise in the adjacent communities.

What is the project timeline?
2004:
Completion of Stage 1 Harvard Avenue Wall

2005
:
Completion of Stage 2 Boylston Avenue Wall and Harvard Avenue wall extension

2005-2007: Stage 3 Design

2008-2009: Stage 3 Construction

Public Involvement
WSDOT hosted an informal community information session on Thursday, August 23, 2007. The project team shared information regarding noise wall locations, landscaping options, when construction will begin.

The project team presented information about the design of three additional noise walls in the area at a community open house on February 27, 2007. If you were unable to attend the open house and would like more information or have questions, please contact the project team.

Your thoughts and opinions are important to us.

Send the project team an email if you would like to be added to the project mailing list. You will be kept posted via email on the project's status and on upcoming participation opportunities as the project progresses. You can also check this regularly updated project website for the latest information about the project.

Environmental Protection
The project's resultant noise reduction is beneficial to the surrounding environment and communities. Because the project limits fall along existing I-5 land area and structures, noise wall construction will not adversely affect the environment.

Please visit the WSDOT Environmental Services Web site for more information.

Increasing safety is one of our priorities
During the construction phase of this project, WSDOT will implement all necessary traffic management and safety measures.

Will this project impact tribal resources?
The limits of this project do not fall within tribal lands. At WSDOT we seek to address the concerns of the tribal nations using the process outlined in Section 106 of The National Historic Preservation Act and the WSDOT Tribal Consultation Policy adopted in 2003 by the Transportation Commission as part of the WSDOT Centennial Accord Plan.

Financial Information


This project is funded through the following fund sources:

Total Funding for All Sources - $23.178 million


How can I get more information?
Contact:

Erin Fletcher
 
Project Engineer
WSDOT
600 Stewart St, Suite 520
Seattle, WA 98101
Phone: 206-770-3504
E-mail: FletchE@wsdot.wa.gov

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