Spring is the season when projects take off – construction crews mobilize, homeowners head outdoors, and long-awaited plans finally move forward. Whether you’re managing a large excavation project or simply planting a tree in your backyard, one critical step should always come first: planning for what lies beneath the surface. April is Safe Digging Month.

Underground utilities – electric, gas, water, and communication lines – are essential to everyday life, but they can also pose serious risks if disturbed. Striking a buried line can lead to injuries, costly repairs, service disruptions, and even life-threatening situations. The good news? Most of these incidents are entirely preventable with the right approach.

Why Safe Digging Matters

Excavation is a routine part of construction and property maintenance, but it comes with inherent risks. Damaging underground infrastructure doesn’t just delay projects, it can endanger workers, homeowners, and entire communities. A ruptured gas line or severed electrical cable can escalate quickly into an emergency.

That’s why safe digging isn’t just a best practice, it’s a shared responsibility. From contractors to homeowners, everyone involved in digging projects plays a role in preventing accidents.

It Starts With a Plan

Every successful project begins with preparation. Before any digging takes place, it’s essential to evaluate the site and identify potential hazards. For professionals, this includes conducting a job hazard analysis (JHA) or site-specific safety plan in line with OSHA requirements, as well as obtaining any necessary local permits.

A key OSHA requirement is identifying and locating underground utilities before excavation begins. Employers must take steps to determine the estimated location of utility installations – such as sewer, telephone, fuel, electric, or water lines – before opening an excavation.

Equally important is keeping all documentation (utility drawings, permits, and safety plans – readily available and up to date. Local municipalities and utility providers may have additional requirements, so always verify before starting work.

For homeowners, planning may be less formal, but it’s no less important. Even small projects like planting a tree or installing a fence post require awareness of underground utilities.

Always Call 811 Before You Dig

One of the simplest and most effective safety steps in the U.S. is contacting 811 before starting any digging project. This free service, often referred to as “Call Before You Dig”, connects you with local utility operators who will mark the approximate location of underground lines on your property.

Here’s how the process works:

• Submit a request online or call 811 at least 3 business days before digging (timelines may vary slightly by state).
• Provide details about your project location and scope.
• Utility companies will be notified and send professionals to mark buried lines using paint or flags.
• Confirm that all utilities have responded before starting work.  

These markings are your guide throughout the project. If they fade or your project extends beyond the valid timeframe, request a re-mark to stay safe and compliant.

Know the Color Codes

Utility markings in the U.S. follow the American Public Works Association uniform color code system:

• Red: Electric power lines
• Yellow: Gas, oil, or petroleum
• Orange: Communications or signal lines
• Blue: Potable water
• Green: Sewer and drain lines
• Purple: Reclaimed water or irrigation
• White: Proposed excavation area
• Pink: Temporary survey markings

Understanding these colors helps you quickly recognize potential hazards and adjust your digging approach accordingly.

Training and Competency Matter

For professional projects, proper training is essential. OSHA requires that a “competent person” be present on excavation sites—someone capable of identifying existing and predictable hazards and authorized to take prompt corrective measures.

Workers should be trained to:

• Recognize underground utility hazards
• Understand excavation safety standards
• Use detection and protective equipment properly
• Respond effectively to emergencies

Ongoing training and certification programs help reinforce safe work practices and ensure compliance with OSHA regulations.

Maintain Safe Practices On-Site

Even with thorough planning, vigilance during excavation is critical. Key safety practices include:

• Maintaining a safe distance from exposed utilities
• Never attempting to move or tamper with live lines
• Protecting excavations from collapse using sloping, shoring, or shielding as required by OSHA
• Supervising high-risk areas, especially near gas or high-voltage systems
• Keeping communication open among team members
• Ensuring everyone knows emergency procedures

If a utility line is accidentally struck, stop work immediately and follow emergency protocols.

Be Prepared for Emergencies

In the event of a gas line strike or suspected leak:

• Leave the area immediately on foot
• Avoid using phones, vehicles, or anything that could create a spark
• Move upwind to a safe distance
• Call 911 and the utility provider once you are clear of the area
• Warn others to stay away until professionals arrive

Quick, calm action can prevent a dangerous situation from escalating.

A Shared Responsibility

Safe digging depends on collaboration. Utility companies, contractors, and property owners all contribute to a system designed to prevent damage. Keeping communication lines open, responding promptly to locate requests, and maintaining accurate records all help the process run smoothly.

For industry professionals, regularly reviewing OSHA standards and updating safety procedures ensures teams stay aligned with evolving regulations and technologies. For homeowners, taking a few extra minutes to plan ahead can prevent costly and dangerous mistakes.

Safe Digging is Essential

Safe digging is about preparation, awareness, and responsibility. By planning ahead, verifying utility locations, using proper tools, and following OSHA guidelines, you can protect people, property, and essential services.

Whether you’re managing a construction site or improving your backyard, remember: the safest projects start before the shovel hits the ground.

Taking the time to dig safely isn’t just smart, it’s essential.

APRIL 2026