Trenchless Services

Complete underground utility projects more efficiently, effectively, and safely with our trenchless engineering services. Whether you’re installing new pipes, burying high-voltage cables, or rehabilitating aging underground systems, our solutions protect your schedule and budget while reducing community impact.

Trenchless solutions are ideal for infrastructure projects in tight or restricted spaces, such as those that cross highways, railroads, or major bodies of water; areas with environmental concerns, like wetlands; or in densely populated urban environments.  

Comprehensive trenchless services for every stage

From planning to construction support, Terracon provides trenchless solutions for the lifecycle of your project. We offer comprehensive services for straightforward and highly complex projects, including:

• Feasibility studies
• Geotechnical investigations
• Geophysical investigations
• Risk assessment and mitigation
• Preliminary and final trenchless design
• Alternative project delivery methods consulting
• Opinions of probable construction costs
• Preparation of plan and specs
• Permitting and coordination
• Construction support

Our team brings extensive knowledge in small-diameter tunneling and trenchless technologies. Our expertise spans horizontal direction drilling (HDD), pipe jacking, auger boring, microtunneling, and pipe ramming, tailored to your project’s needs.

Expert assessment for best-fit solutions

Successful trenchless projects start with geotechnical insight and trenchless expertise. We evaluate soil conditions, utility conflicts, and environmental and regulatory constraints to recommend the most effective method for your site. Our clients have overcome challenges like complex geologies, high traffic volumes, and stringent permitting requirements to deliver trenchless projects in rural, suburban, and urban settings.

The factors that drive trenchless performance

Every trenchless project relies on solid understanding of the “three Gs”:

Geology – assessing subsurface conditions to anticipate challenges and reduce risk.
Geometry – designing an optimal bore path that minimizes disruption, reduces risks, and maximizes efficiency.
Geography – accounting for surface features and access constraints to streamline execution.

For high-voltage installations, geothermal introduces a fourth critical factor: thermal performance. Proper thermal design protects cable integrity and enhances long-term reliability. With decades of geotechnical and trenchless experience, we provide data-driven consulting to minimize disruption and maximize results.