LEHIGH VALLEYUNDERGROUND
Ditch Witch directional drill on active jobsite
All Services

Horizontal Directional Drilling

Precision HDD boring for underground electric and telecom infrastructure — installed beneath roads, developments, and sensitive areas with minimal surface disruption.

Our Core Capability

Trenchless Installation Done Right

Horizontal Directional Drilling (HDD) is a trenchless method for installing underground utilities without open-cut excavation. A guided drill head creates a pilot bore along a planned path beneath obstacles, followed by reaming to the required diameter and pulling the product pipe or conduit through the opening.

Lehigh Valley Underground operates a range of HDD rigs — from compact units for residential bores to larger machines capable of extended highway and waterway crossings. Every bore is tracked in real-time using locating equipment to ensure accuracy, depth compliance, and avoidance of existing underground infrastructure.

We handle the full HDD process: pilot bore, pre-reaming, pullback, and final conduit or pipe installation — delivered safely and built to specification.

HDD pilot bore diagram showing guided boring machine path
Drill rod exiting bore pit

The HDD Process

Three Phases of Every Bore

Three phases of HDD: Pilot Hole, Preream, and Pullback
Phase 1

Pilot Bore

A guided drill head creates a small-diameter pilot hole along a precisely planned path beneath obstacles. Real-time tracking ensures accuracy.

Phase 2

Pre-Ream

The pilot hole is enlarged using a reamer to the required diameter for the product pipe or conduit being installed.

Phase 3

Pullback

The product pipe or conduit is attached to the reamer and pulled back through the enlarged borehole to complete the installation.

Equipment & Capabilities

What We Bring to Every Bore

Mini HDD rigs for residential and tight-access bores
Mid-size and maxi rigs for road, highway, and river crossings
Multi-conduit duct bank installations via HDD
Bore tracking and locating with walk-over and wireline systems
Bentonite mixing and fluid management systems
Pre-reaming and back-reaming for larger diameter bores

Applications

Where We Drill

Road & Highway Crossings

Bore beneath active roadways without lane closures or surface cuts, maintaining traffic flow throughout the project.

Residential Developments

Install electric and telecom infrastructure through neighborhoods with minimal lawn and landscape disruption.

Commercial & Industrial Sites

Navigate under parking lots, sidewalks, and existing structures to place primary conduit runs.

Railroad & Waterway Crossings

Execute permitted bores beneath rail corridors and streams with full compliance to regulatory requirements.

Need a Directional Drilling Contractor?

Contact us to discuss your bore requirements. We'll scope the project, provide a competitive estimate, and deliver results.