Brierley Associates is a privately-held national tunnel, trenchless, geo-structural and geotechnical design firm with offices strategically located across the United States. With over 80 underground  engineers and geologists, Brierley Associates delivers recognizable value to our clients by providing cost effective and constructable solutions for underground and heavy civil infrastructure projects.

Our team understands that planning, design, and construction of subsurface projects is a complex mixture of client needs, contractual preferences, risk allocation, third party requirements, design criteria, and subsurface conditions.

Brierley Associates’ nationwide and international underground project knowledge-base is key to anticipating ground behavior and helping our clients with design and construction of successful projects, which is the cornerstone of Brierley’s business vision to…“Create Space Underground”.

Press Room

Checkout out our Press Room for past issues of our In Depth Newsletter and published papers and articles.

InDepth January 2016 Available in Our Press Room

Featured Articles in this Edition of InDepth Design Build Landslide Remediation – Crookston, MN 4,100-ft HDD Completed – Design by Brierley Associates Anne Arundel County, MD Lake Mead Intake No. 3 Wins Global Tunnel Project of the Year Award at the 2015 NCE Tunneling and Underground Space Awards in

Read more

Nick Strater – CUIRE Trenchless Geotechnical Course Instructor at UCT Conference Atlanta

  Nick Strater will be co-instructor at the CUIRE Geotechnical School for Pipelines and Trenchless Technology on February 1, 2016 held at the Underground Construction Technology International Conference & Exhibition Conference in Atlanta, Georgia. Topics covered include: Geotechnical Considerations and Investigations for Trenchless Technology and; How to

Read more

Nancy Nuttbrock Invited to Congressional Hearing

  Brierley Associates Texas Regional Manager, Ms. Nancy Nuttbrock,PE has been invited by the Congressional Subcommittee on Energy and Mineral Resources to testify at a field hearing on H.R. 3734 known as the “Mining Schools Enhancement Act.”  If passed, the proposed amendments to the existing “Surface Mining

Read more

Brierley Associates Sponsors ASCE Geotechnical Symposium

SR 99 – Bertha Access Shaft Topic of Presentation ASCE Mohawk-Hudson Section will hold their annual Geotechnical Symposium on November 13th, 2015 at Rensselaer Polytechnic Institute in Troy, NY. Brierley Associates is a Gold Sponsor of this annual event. You can learn more about the event by

Read more

Brierley Associates Proudly Sponsors Tunneling Short Course

  AJ McGinn,PhD will be the Instructor for Box Tunnel Design during this  Wednesday’s  Session at the Short Course. Topics covered will include box tunnel construction “Push or Pull” and other options, ground behavior and face control. AJ will also present a case study on the Twin

Read more

Office Locations








New Hampshire

New York







Mailing List

Join our mailing list.

Connect With Us