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Individual Highlight

Nondestructive Assessment of Wood Members in a Viewing Tower in Potawatomi State Park, Door County, Wisconsin, USA

Photo of Potawatomi State Park observation tower.Potawatomi State Park observation tower.Snapshot : USDA Forest Service scientists assessed the condition of a historic observation tower to determine if it could be enjoyed safely.

Principal Investigators(s) :
Wang, XipingRoss, Robert J.
Senalik, Christopher Adam 
Research Station : Forest Products Laboratory (FPL)
Year : 2019
Highlight ID : 1594


The State of Wisconsin’s Department of Natural Resources is responsible for operating one of the largest state park systems in the United States. Potawatomi State Park, located on the Door County peninsula, consists of about 1,200 acres of flat to gently rolling upland terrain bordered by steep slopes and rugged limestone cliffs along Lake Michigan’s shoreline. A 75-foot observation tower sits atop a 150-foot bluff overlooking Lake Michigan. State officials asked USDA Forest Service researchers to conduct an assessment of the main support timbers of the tower. This report summarizes the results obtained from the inspection and assessment. It includes a brief summary of the nondestructive testing techniques that were used, observations, data from tests conducted on the timbers, and recommendations.

Forest Service Partners

External Partners

  • State of Wisconsin’s Department of Natural Resources
  • State of Wisconsin’s Department of Natural Resources