Workers-safety (47/49)

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Pipe layer Jon Daniels installs underground sewer pipe for Looker & Associates, Inc. Daniels is working within the protective confines of a "trench box," a huge steel box that prevents the dirt walls of an excavated trench from collapsing and burying workers in soil.

Filename: trench_7754.JPG
  • pipe layer
  • sewer
  • trench box
  • safety

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