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.

Long Haul HDD – Trenchless Technology Magazine

 Mayo, Maryland HDD Project in the News Again Our January 2016 issue of In-Depth featured a 4,100-ft HDD crossing of the South River in Anne Arundel County, MD. Thor Young,PE – Principal Manager at GHD and Nick Strater,PG – Brierley’s Trenchless Practice Leader give readers an update

InDepth March 2016 Available in Our Press Room

Featured Articles Brierley and BIM in San Francisco Mike McTeer and Eric Lindquist,PhD,PE The 2016 World Tunnel Congress Update from Alan Howard NASTT No-Dig Show, Dallas TX Update ACEC Missouri Grand Award Winner- Cole Junction HDD Brierley’s Texas Region Welcomes Greg Van Etten and Jacob Mitchell  

NASTT No-Dig Show – Dallas TX March 20-24, 2016

Brian Dorwart, Nick Strater, Nancy Nuttbrock, Lewis Yates and Kevin Mandeville at No-Dig   This year No-Dig will be held in Dallas and Brierley Associates will attending. Additionally Lewis Yates will be presenting “Tapping Lake Travis” that was co-authored by Kevin Mandeville, Aaron Archer (HDR Engineering, Inc.) and

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