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Safety Focus of the Week: Digging In the “Tolerance Zone” (Revisited)
This week’s focus is digging safely around underground utilities. The Digsafe Excavator Manual includes procedures for excavating adjacent to underground utilities.
Within 18 inches of a utility is considered the 18 inch “Tolerance Zone” where excavation with heavy equipment is restricted until the location, depth, and dimensions of the utility are visually verified in a hand or vacuum excavated pit.
The Tolerance Zone is furthre described on pages 13 and 14 of the DGS Excavator Manual NOV 2015 for download
