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Call 811 before digging post holes

Source: Local Help Stations (localhelpstations.com). Last updated November 2, 2026.

Utah Code 54-8a-4 says an excavator must notify each utility owner before excavating. The notice must be given at least 48 hours and no more than 14 days before digging begins, and it is valid for 21 days. Notice to the association, Blue Stakes of Utah 811, counts as notice to every member utility. The law exempts gardening and tilling private ground, not post holes or footings. (source: Utah State Legislature)

Utah Code 54-8a-2 defines 48 hours as business days only, starting at 8 a.m. on the first business day after you submit the notice. Blue Stakes of Utah 811 tells diggers to notify it at least 3 business days before excavation. Both come from official sources; the Blue Stakes figure is the safer plan. Call 811 or file online for free. (source: Blue Stakes of Utah 811)

In this guide: Who can build a fence or deck in Utah? · Do I need a permit for a fence, deck or patio? · Call 811 before digging post holes · Hiring a fence, deck or concrete contractor · FAQ · Sources

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