The Neal Bridge located in Pittsfield, Maine, completed in Novemeber 2008, is designed and built using structural composite materials and techniques. The University of Maine's Advanced Structures and Composite Center. Our own Harbor Technologies, LLC sourced product line participates with the University of Maine in projects such as this.
For marine and other uses, Harbor Tech makes pilings from 8 inches to 24 inches diameter, and any wall thickness required to achieve the structural strength of the application.
An additional article on this bridge is here:
http://www.nytimes.com/2009/10/13/science/13bridge.html?_r=2&ref=science
