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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.

Austin Capital Complex Project Featured in ENR

Brierley Associates provided final detailed design of the entire Phase 1 retention system for the Capital Complex project in Austin, TX, an approximately 40-to 65-ft deep, 500,000+ CY excavation through overburden and limestone bedrock  As the project is within a dense urban setting, significant coordination with adjacent

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Deep Foundations Pose Challenges in Tight Downtown Areas

Brierley’s trestle designs help builders construct deep excavations by David Berti, Senior Consultant Construction in dense urban areas like San Francisco and Los Angeles pose unique challenges for shoring and excavation. Urban center constraints like walkways, roads, utilities, adjoining buildings, and subways are used by thousands of

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Oceanwide Center Project Featured in Foundation Drilling Magazine

Oceanwide Center Project Featured in Foundation Drilling Magazine

Foundation Drilling Magazine featured Malcolm Drilling’s work on The Oceanwide Center project in their November/December Issue. Malcolm was retained by the Swinerton/Webcor Joint Venture to install the deep foundations and temporary support of excavation system and perform the mass excavation on this $1.6B project. Working for Malcolm,

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Oceanwide Center, San Francisco, CA

Oceanwide Center, San Francisco, CA

Deep Basement Construction Requires Specialty Knowledge Development in downtown San Francisco continues with taller structures and deeper more complicated basement excavations. Tight urban sites in the city pose several challenges ranging from existing underground utilities, adjacent structures and difficult geotechnical conditions. Situated a block away from the

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Engineering Geology for Subsurface Works Lecture Series – November 21, 2019

Engineering Geology for Subsurface Works Colorado School of Mines-Student Center Ballroom-Golden, CO Join  Dr. Mole, Inc. and the Association of Environmental & Engineering Geologists (AEG) on November 21, 2019 at 6:00 PM in the Colorado School of Mines Student Center Ballroom for this informative session that will include: Dr.

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