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.

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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North American Tunneling Journal – Importance of Engineering Geology to Tunnel Design

Engineering Geology as Applied to Tunneling Projects Brierley Associates’ Alan Howard, Ike Isaacson and Dr. Mole-Gary Brierley discuss the importance of Engineering Geology when designing tunnels  in the September 2019 issue of North American Tunneling Journal.  This informative article appears on pages 55-60 in the digital edition.

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InDepth September 2019 – Fitzsimons-Peoria Outfall Tunnel; I-35W Stormwater Chamber and Bassett Creek Tunnel

September 2019 Issue of InDepth Read about…… MTBM Launched -Fitzsimons Stormwater Outfall Tunnel – Aurora , CO         I-35W Stormwater Storage Facility Design – Minneapolis, MN Analysis of Bassett Creek Tunnel – Minneapolis,MN        Opening of Northborough,MA and Laramie,WY offices Upcoming Brierley Sponsored

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Nick Strater- Webinar Instructor

UCA of SME Young Members Webinar Series – July 25,2019 Learn more about this webinar and how to register by clicking here.

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Upcoming Fall 2019 Tunnel Conferences Sponsored by Brierley Associates

12th Annual Breakthroughs in Tunneling Short Course – University of Denver,CO Main Event Sponsor -Brierley Associates The 12th Annual Breakthroughs in Tunneling Short Course will be held September 9-11, 2019  at the University of Denver – Joy Burns Center.  Brierley Associates’ Gregg Sherry and Dr. Mole – Gary

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