How to Prepare for a Utility Locate Before Digging

If you're planning to dig on your property in Longview, Chehalis, Olympia, Aberdeen, or anywhere in Southwest Washington, preparing for a utility locate is one of the most important steps you can take.

Whether you’re installing fencing, trenching for power, digging footings, or adding irrigation, knowing what’s underground protects your project and your budget.

Here’s how to prepare properly.

Call 811 First

Washington State law requires you to call 811 before digging. Public utility companies will mark the lines they own.

But 811 only marks utilities up to the meter. Lines beyond that point are often considered private, and belong to the property owner. Even lines just off the main can be considered private, such as sewer laterals.

Clearly Mark Your Dig Area

Use white spray paint, flags, or stakes to outline exactly where you plan to dig. This improves accuracy and reduces guesswork.

Make the Area Accessible

Before your locate appointment:

• Unlock gates

• Secure pets

• Move vehicles

• Clear heavy vegetation

Clear access leads to better results.

Know What You’re Installing

Tell your locator if you're installing:

• Fence posts

• Septic lines

• Electrical conduit

• Irrigation

• Shop or ADU utilities

Different projects may require different locating methods.

You can learn more about our “Private Utility Locating Services in Southwest Washington” to understand how the process works.

Bottom Line

Proper preparation makes utility locating more accurate and efficient. If you’re unsure what’s buried on your property in Thurston or Lewis County, it’s always safer to locate first.

Digging without knowing can cost far more than scheduling a locate.