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I-405 - NE 6th to I-5 Widening and Express Toll Lanes - Noise Walls

Thumbnail of noise wall map
To view a map of all noise wall locations for this project, click the image above (pdf 369 kb).

As part of the I-405 Bellevue to Lynnwood Widening and Express Toll Lanes project, contractor crews will build seven new noise walls and one new noise berm, as well as relocate one existing wall in the project area.

Noise wall construction began in late summer 2013 and will continue through early 2015.

The list below contains PDF flyers of noise wall construction information by location.

You can also view a map of all noise wall locations (pdf 369 kb).



Sample noise wall

The new noise walls will be concrete with an ashlar stone finish, similar to the wall in this photo.

Along southbound I-405:

Along northbound I-405:

What's the process for getting a noise wall?
WSDOT's noise wall page
has more information about how, when and why we install noise walls for projects.

Appendix L of the Bellevue to Lynnwood Environmental Assessment provides detailed information on the noise study conducted for this project and evaluation process for new noise walls.