Think before you dig

Checking for underground services before you start upheaving the ground really matters. We all know that what’s beneath the ground can often be more dangerous (and expensive) than what’s above it.

 

Thousands of kilometres of underground infrastructure criss-cross construction zones. These include telecommunication cables, gas mains and service lines, water and wastewater pipes, and fibre-optic networks and stormwater systems.

 

These networks often lie closer to the surface than many expect, sometimes less than half a metre deep. Ground disturbance without proper checks risks electrocution, gas leaks, service outages, or flooding, not to mention reputational damage and potential investigations.

 

Before any excavation, site prep, drilling, or fencing work, builders are legally and ethically obliged to locate known underground services. The simplest, most reliable first step is contacting Before You Dig New Zealand.

 

BYD NZ allows you to lodge enquiries and receive detailed site plans from utility providers within a few working days.

 

Once plans arrive, keep in mind they show approximate locations only, so it is important to mark out service corridors using paint or pegs and use safe digging techniques such as hand-digging or potholing to confirm exact positions before excavation.

 

Always stay aware that services may have changed since previous works and keep BYD NZ responses and risk assessments documented in your site safety file.

 

Common mistakes to avoid include assuming that old plans are still accurate, relying solely on visual inspections, or skipping the BYD NZ enquiry process altogether to save time.

 

Workers also sometimes fail to re-check services after design changes or site alterations, or they excavate too close to marked service lines without first confirming their exact location through hand digging or potholing.

 

These shortcuts can significantly increase the risk of striking underground infrastructure and causing serious damage or injury.

 

In case of emergency, stop work immediately, secure the area, avoid touching exposed cables or leaking pipes, and contact emergency services and the utility provider.

 

Being mindful is about awareness and compliance. Encourage your team to pause, check, and talk through what lies beneath every time. Building deliberate dig mindfulness habits helps prevent outages and accidents while keeping projects on schedule. Every site worker, not just the supervisors, is responsible.

 

A good example is adding underground service checks to site inductions and weekly toolbox meetings. Discuss past near-misses so crews understand the real-world consequences. When staff know why these measures matter, they’re far more likely to follow through.

 

Striking underground cables and pipes is a common cause of serious on-site incidents nationwide. A moment’s rush with the digger bucket or auger can lead to injury, project delays and repair bills in the thousands, or worse. That’s why it pays to take a mindful, step-by-step approach before breaking ground.