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Trenchless Technology Engineering

Innovation. Implementing the right technology for each unique project.

Coffman’s trenchless experience allows us to evaluate surface impacts while providing solutions that meet the specific needs of each individual project.

We are proud of our commitment of meeting with clients to determine project specifics prior to offering trenchless solutions. There are circumstances and requirements that limit applicable trenchless solutions and Coffman is dedicated to limiting risk through applicable solutions.

What is Trenchless Technology? 

A minimally invasive construction process of installing new utilities, assessing existing infrastructure, and rehabilitating existing underground pipelines by eliminating or reducing excavations. This technology is commonly used for utilities such as water pipes, sewer mains and services, gas distribution lines, and electrical conduit. This construction method is an option to minimize environmental and social impact, as well as reduced construction costs.

Our design experience includes:

  • CCTV Condition Assessment

  • Lazer Profiling

  • Sonar

  • Ultrasonic testing

  • Horizontal Directional Drilling (HDD)

  • Auger Boring

  • Guided Auger Boring

  • Pilot Tube Microtunneling

  • Pipe Ramming

  • Micro-Tunneling

  • Direct Pipe

  • Pipe Bursting

  • Cured in Place Pipe (CIPP)

  • Sliplining

  • Coating (spray & hand application)

  • Spiral Lining

  • Chemical & Cementitious Grouting


Brian Gastrock, PE
Civil Engineer
(907) 257-9299

Using trenchless technologies can increase efficiencies and decrease the social economic impacts on your construction projects.

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