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Horizontal Directional Drilling (HDD) reduces impact on the environment, existing underground infrastructure, and surface assets. Successful HDD project delivery requires detailed consideration of surface terrain, alignment constraints, subsurface conditions, pipe design criteria, client needs, contractual preferences, risk allocation, and third-party interests. Our HDD team of engineers and geologists draw upon their collective national and international experience to understand those challenges and deliver the right technology to traverse a variety of challenging underground conditions.

Brierley Associates is an internationally recognized authority in the selection, design, construction management, and forensic analysis of Horizontal Directional Drilling (HDD) solutions for water, wastewater, electrical and natural gas.

Horizontal Directional Drilling Engineering Capabilities

Feasibility, Design, Construction Management and Forensic Analysis for water, wastewater, electrical transmission, and natural gas pipelines projects within:

  • Long reach crossings of waterways
  • Critical transportation infrastructure
  • Densely populated urban alignments
  • Environmentally sensitive areas
  • Challenging ground conditions

Our Horizontal Directional Drilling Team