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User / WSDOT / Vacuum hoses entering the box girders.
Washington State Dept of Transportation / 33,763 items
A vacuum hose ensures that all concrete particles are safely removed while crews are drilling inside the box girders.
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  • Views: 997
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Dates
  • Taken: May 9, 2019
  • Uploaded: Oct 7, 2019
  • Updated: Oct 9, 2019