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.

Brierley Associates at TTC Auger Boring School – February 13-17, 2017

Brierley Associates is a sponsor of the upcoming Auger Boring School to be held February 13-17, at Louisiana Tech University, Ruston, LA. This annual educational event is a joint effort between the Trenchless Technology Center (TTC) at Louisiana Tech and the National Utility Contractors Association (NUCA).  Its

Norfolk, Virginia Office Opens

Dave Sackett Joins Brierley in Norfolk, Virginia Brierley Associates celebrates the expansion into the Mid-Atlantic/Southeast region with the opening of our Norfolk, Virginia office under the management of Mr. David (Dave) Sackett, PG. Dave has more than 30-years’ domestic and international experience as a Geoscientist, and he

InDepth December 2016

In This Issue…. Read about our work with Wyoming Abandoned Mine Lands Program to assess hazards associated with mine collapse and development of  innovative grout mixtures to mitigate mine subsidence. George A. Fox Conference This annual conference is slated for January 24, 2017 in New York City.

ASCE Mohawk-Hudson Section Capital Region Geosymposium

Brian Dorwart at Geosymposium Brierley Associates is a sponsor of the 2016 ASCE Geosymposium to be held on November 18 at Rensselaer Polytechnic Institute in Troy, NY.  Our own Brian Dorwart will present the background, design and construction of the record holding 3,000-ft long HDD installation of  54-inch diameter