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NASTT No-Dig 2025

March 30, 2025

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March 30 April 3

Join us at NASTT 2025 No-Dig Show – Booth #839

Risk management across the trenchless lifecycle

Terracon’s expert team helps you identify, assess, and mitigate risks on a trenchless project:  

Identify Risks: Through smart exploration, we uncover potential issues including subsurface conditions, environmental impacts, and construction challenges.

Assess Risks: Combining our knowledge of your project’s risks and trenchless methods, we help you evaluate these risks’ likelihood and potential impact on a trenchless project.

Mitigate Risks: We recommend and implement strategies to minimize or eliminate the identified risks, such as using advanced geophysical methods and obtaining necessary environmental permits.

Geotechnical Services

Geophysics Services


Don’t miss trenchless insights from our presenter!

Railroad Crossings via Trenchless Methods

Jason Heinz, P.E., geotechnical services department manager

Tuesday, April 1, 10:00-10:25 a.m., 111/113 Colorado Convention Center


Our trenchless design solutions use geophysics to mitigate risk

Using advanced non-invasive geophysical and remote sensing screening methods to learn about your site’s subsurface helps determine the best approach for your trenchless project. We’re staffed with the most geophysical professionals and the largest fleet of near-surface equipment compared to competitors.

Our geophysics professionals are your best source for determining the best screening tools for your site and project. A few common methods include ground penetrating radar (GPR), light detection and ranging (LiDAR), 2D electrical resistivity, and seismic refraction. Geophysical and remote sensing screening tools can be especially helpful for sites covering many acres or those with challenging terrain or continuous traffic.

Terracon’s trenchless engineering experts have a deep understanding of geological conditions and the risks they present with various trenchless methods. They’re experienced in providing trenchless evaluations and detailed designs for horizontal direction drilling (HDD), microtunneling, and pipe jacking, to name a few. They have successfully delivered projects in rural, suburban, and urban areas with complex geologies, high traffic, and environmental considerations.

Trenchless Services

Our environmental planning & permitting services ease project delivery

Terracon is more than a geotechnical firm. We have a national environmental practice with depth, experience, and relationships to guide you through federal and local regulatory processes.

Assisting trenchless design clients with federal and local permitting for site development is one of our specialties. Other services include Phase I ESAs, wetland delineations, threatened and endangered species surveys, cultural resource services, erosion and sediment control plans, and stormwater management plans.

The requirements under NEPA can present an obstacle to developing trenchless design projects but are not difficult to navigate with an experienced team. We have a deep bench of practitioners who have navigated this process – we’ll make it easier for you. 


Meet our team

Dennis Doherty, P.E., F.ASCE

Senior Geotechnical Engineer
NASTT Hall of Fame, Inducted 2022
D:(301) 354-6111
M:(603) 320-6331

Jason Heinz, P.E.

Principal, Department Manager, Geotechnical Services
D:(319) 268-4738
M:(319) 493-5163

Sam Brancheau, P.E.

Geotechnical Project Engineer
D:(205) 443-5290
M:(916) 230-4113

John Diamond

National Director, Trenchless Design Services
D:(801) 545-9048

Virginia Puljan

Assistant Project Manager, Geotechnical Services
D:(801) 545-9065

John Haas headshot

John Haas

Office Manager
D:(303) 454-5265

Details

Start:
March 30
End:
April 3
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