SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/home-c-811-18-24

After 811 marks buried utilities in your yard, how close to the marks should you try not to dig?

Within 18 to 24 inches, per the 811 homeowner guide.

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  1. 6 to 8 inches
  2. 18 to 24 inches ✔
  3. 36 to 48 inches

Why: Paint and flags are only approximate guides. 811 says to try to avoid digging on top of or within 18 to 24 inches on all sides of the marks, and to move your project if you can.

Huh, didn't know that: If the marks wash away or your project runs past the ticket's expiration date, contact your 811 center to ask for a re-mark.

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How many DIY buffs does it take to change a light bulb? One, but it takes two weeks and four trips to the hardware store.
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References

Answer: 18 to 24 inches. Paint and flags are only approximate guides. 811 says to try to avoid digging on top of or within 18 to 24 inches on all sides of the marks, and to move your project if you can.

  1. 811 Information For Homeowners 811beforeyoudig.com/for-homeowners
    Try to avoid digging on top of or within 18-24” on all sides of utility marks
    Checked 2026-10-10.

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