Detection of active decay at groundline in utility poles

Alex L. Shigo; Walter Shortle; Julian Ochrymowych

Treesearch

Detection of active decay at groundline in utility poles

Informally Refereed

Authors:

Alex L. Shigo, Walter Shortle, Julian Ochrymowych

Year:

1977

Type:

General Technical Report

Station:

Northern Research Station

Source:

Gen. Tech. Rep. NE-35. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station. 26 p.

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Download (PDF 6.74 MB): https://research.fs.usda.gov/download/treesearch/4019.pdf

Abstract

Active wood decay at groundline in in-service utility poles can be detected by a skilled inspector using: 1. A knowledge of basic patterns of decay. 2. Recognition of obvious signs of decay. 3. Proper interpretation of information obtained from a pulsed-current meter-Shigometer®-used with various probes and probing techniques.

Keywords

Shigometer, pole decay, pole inspection

Citation

Shigo, Alex L.; Shortle, Walter C.; Ochrymowych, Julian. 1977. Detection of active decay at groundline in utility poles. Gen. Tech. Rep. NE-35. Upper Darby, PA: U. S. Department of Agriculture, Forest Service, Northeastern Forest Experimental Station. 26 p.