News and Resources

View Slides and Video from WSDOT Symposium

On February 2, 2015, a symposium and panel discussion was held to discuss a new double wall pile designed to improve noise attenuation, focusing on results from recent full scale testing in Puget Sound.  This innovation was developed and tested with support from WSDOT, the Federal Highway Administration, the Port of Tacoma, and several leading engineering and environmental consulting firms.

Symposium VIDeo




Full Presentation

More Info

For more information about the symposium, including a detailed agenda and specific presentations, read the article here.

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"This new research shows we can minimize underwater pile driving noise to avoid harm to mammals and other protected marine species. The new sound attenuation method may also save project construction time and money."
Rhonda Brooks, Research Director, Washington State Department of Transportation

Hear the difference

Recorded from hydrophone deployed at 10m during subscale testing of 8" steel piles in Seattle, Washington in 2013.

You are hearing 4 strikes of a standard pile followed by 4 strikes of a Reinhall Pile™. Notice the difference.