Brierley Associates is a privately-held national tunnel, trenchless, geotechnical, and geo-structural design firm with offices strategically located across the United States. With over 60 underground engineers and geologists, Brierley Associates has a long history of delivering 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.
The nationwide and international underground project knowledgebase of Brierley Associates 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 – AJ McGinn and Jacob Mitchell Invited Speakers DBIA Houston Chapter, in its mission for outreach and education, is holding a Public Agency Design Build Forum. Public owner /agency personnel at all levels who might be engaged in an upcoming design-build project will learn more
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In this issue of InDepth Twin Stormwater Tunnels-Denver, CO Our friends at T&UC write about the Globeville Landing Outfall in Denver, CO — a $70-million box culvert project that includes a pair of 157-m (515-ft) long, 243-cm (96-in.) diameter storm water tunnels that pass beneath a busy
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September 10-12, 2018 University of Denver, Colorado Celebrating its 11th year, the Breakthroughs in Tunneling Short Course is the longest running and most-attended course of its kind. Brierley Associates is the Main Event Sponsor and featured speakers include: Gregg Sherry, will talk about
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In this issue of InDepth Read about how Bill Zietlow in our Denver, CO office implemented the observational approach to develop a flexible design and accelerated construction of a soil nail wall to allow re-opening of a roadway affected by a landslide. David Berti in our Moraga, CA office
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“Eʻoluʻolu e kiʻi iā mākou i Hawaii!” (Please welcome us to Hawaii!) Brierley Associates celebrates our Aloha State expansion with the welcoming of Don Painter Senior Tunnel Construction Professional and the opening of our newest office located at: 1003 Bishop Street Suite 2700 Honolulu, HI 96813 808-237-2459
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