US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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James P. Wacker

Research General Engineer
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: 608-231-9224
Contact James P. Wacker

Research Interests

  • Developing improved relationships between several NDE techniques and different stages of decay
  • New inspection methods and/or long-term performance monitoring of exterior timber structures
  • New repair and rehabilitation techniques for highway and railroad bridges


  • University of Wisconsin-Madison, B.S. Civil and Environmental Engineering, 1990

Professional Organizations

  • American Society of Civil Engineers, Chair of Timber Bridges Technical Committee, Member
  • Forest Products Society, Member

Featured Publications & Products

Publications & Products

Research Highlights


America's Historic Covered Timber Bridges

Covered wooden bridges proliferated in the United States in the mid-nineteenth century. Today an estimated 800 covered bridge structures remain ...


Centennial Edition, Wood Handbook—Wood as an Engineering Material

The Wood Handbook—Wood as an Engineering Material serves as a primary reference document for a wide variety of users-from the general publ ...


Last updated on : 08/04/2014