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    Author(s): Frederick Green; Charles Boardman; Robert Munson
    Date: 2018
    Source: Gen. Tech. Rep. FPL-GTR-261. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 1-20.
    Publication Series: General Technical Report (GTR)
    Station: Forest Products Laboratory
    PDF: Download Publication  (5.0 MB)


    Wooden bridges, such as historic covered bridges or modern railroad and highway bridges, can become susceptible to subterranean termite feeding. This can result in weakened structural integrity of the wooden members of these bridges, and possibly even structural failure if damage is not discovered early and control measures are not implemented. The goal of this study was to evaluate the use of various remote detection methods, including acoustic emission sound waves, interruption of light transmission, radar and microwave transmission, moisture monitoring, and changes in gas concentrations in detecting termite activity. Successful methods for remote termite detection would reduce the number of annual site visits required to assess these structures and provide an early warning for potential damage, which could significantly reduce repair costs.

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    Green, Frederick; Boardman, Charles; Munson, Robert. 2018. Remote detection of termite activity in wooden bridge structures. General Technical Report FPL-GTR-261. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. 18 p.


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    Historic covered bridges, biodeterioration, termite damage, remote sensing, acoustic emission, termite control, Reticulitermes flavipes

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