how does horizontal Directional Drilling work?

Trenchless utility installation from planning through completion.

Horizontal Directional Drilling is a controlled, trenchless method of installing underground conduit, pipe and utility systems beneath roads, waterways, developed properties and other areas where traditional excavation may be disruptive or impractical.

SEE THE HDD PROCESS IN ACTION

Watch how specialized drilling equipment creates a precise underground pathway while helping reduce surface disruption.

the process

01

PLANNING

Existing utilities, ground conditions, bore length, entry and exit points and required clearances are evaluated before drilling begins.

Actual equipment, project requirements and installation methods may vary based on utility type, soil conditions, site access and bore length.


02

UTILITY LOCATING
and POTHOLING

Utilities are identified and visually confirmed using locating equipment and vacuum excavation to help establish a safe drilling path.

03

PILOT BORE

A guided drill head creates the initial underground path while the operator monitors its depth, direction and position.

03

PILOT BORE

A guided drill head creates the initial underground path while the operator monitors its depth, direction and position.