August 11th is 811 Day — a national reminder that before you grab a shovel to plant a tree, install a fence, or break ground on a new yard project, there’s one simple—and crucial—step that can prevent serious consequences: Call 811 before you dig.

This simple, no-cost service helps prevent damage to underground utility lines during excavation or digging projects—no matter the size. As communities grow and construction increases, this easy step can help protect your home, your neighbors, and prevent service outages.

What Happens When You Call 811?

After you make the call or visit call811.com two days before you dig, utility crews will clearly mark underground utility lines for free and digging can begin safely—near the markings, but never on top of the paint, flags, or whiskers that indicate the location of buried infrastructure.

Safe Digging by the Numbers

Here’s the good news: thanks to growing awareness, underground utility damages dropped by 15% in 2024 compared to 2023, and calls to 811 increased by nearly 10%! Calling 811 is working – but there’s always more work to do.  

Safe Digging Education for Professionals and DIYers

While homeowners play a vital role in safe digging, Southwest Gas also partners with professionals in construction, landscaping, plumbing, and other industries to promote safe excavation practices.

To support this, Southwest Gas offers free, specialized damage prevention training for excavators, plumbers, landscapers, DIYers, and anyone planning to dig within the utility’s service territory.

This training includes essential topics such as:

  • State-specific excavation laws
  • How to properly request utility line markings
  • Steps for conducting a safe excavation
  • Emergency considerations before starting a project

Learn more at: swgas.com/damage-prevention-training

Know the Signs of a Gas Leak

If you suspect a natural gas line has been damaged—even if you’re not a Southwest Gas customer—evacuate the area immediately and call 911 and Southwest Gas at 877-860-6020.

Be alert for these common signs of a gas leak:

  • A strong odor like sulfur or rotten eggs
  • Hissing or roaring sounds from the ground
  • Dirt blowing into the air
  • Bubbling water
  • Vegetation that appears discolored or dying

Protect Your Project & Protect Your Community

Whether you’re a professional contractor or a weekend DIYer, contacting 811 before you dig is a critical step in protecting yourself, your community, and vital utility infrastructure.

Call 811. Know what’s below. Dig safely.

To learn more about safe digging practices, visit swgas.com/dig-safe.