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 AEG Annual Meeting-September 10-16, 2017

 AEG Annual Conference Update Becky Brock will be presenting during Technical Session #10 Thursday September 14 Challenges of Inspecting Unlined Rock Tunnels Based on the New National Tunnel Inspection Standards In 2015, Congress mandated the inspection of all vehicular tunnels in the country on a regular basis.

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InDepth September 2017

The September  2017 issue of InDepth is available in our Press Room In this issue read about  Rockfall Mitigation Bellwood Quarry Reservoir, Atlanta GA AEG Annual Conference – September 2017 Intelligent Tunnel Design CASFM Conference – September 2017 Nick Strater Principal Author – Manual of Practice on Pilot Tube and

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Brierley Associates Main Event Sponsor – Breakthroughs in Tunneling Short Course

In celebration of the 10th Annual Breakthroughs in Tunneling Short Course, Brierley Associates is the Main Event Sponsor.  This years short course will be held August 14-16 in Chicago at the Embassy Suites O’Hare-Rosemont. For more information Click Here This years line-up of speakers includes Gregg Sherry

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InDepth June 2017

The June 2017 issue of InDepth is available in our Press Room In this issue read about 54-inch HDPE-HDD Project Honored in Miami ASCE – 2017 OCEA to San Diego County Water Authority New Manual of Practice – Pilot Tube and Other Guided Boring Methods Lymon C. Reese

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InDepth March 2017

In This Issue…. Reclaimed Water System Improvements – Austin, TX  CDOT Tunnel Inspection and Asset Management Services I-70 Twin Tunnels Expansion – ENR Best of the Best Award – 2016 Bridge/Highway Category Brian Dorwart, Nick Strater and Dave Sackett to be at  No-Dig in DC Mohamed Gamal to

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New Hampshire

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