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GEO-HAZ Consulting, Inc.

GEO-HAZ is a small but powerful US-based business that provides a wide range of services in earth science consulting, research, and education. The firm was founded in 1991 by Dr. James P. McCalpin and is […]

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Brierley Associates

Geotechnical and tunnel design consultant with offices in Colorado, New York, Texas and Massachusetts. Visit Brierley Associates


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Akkerman Inc.

Manufacturer of microtunneling, pipejacking, tunneling, guided boring and earth pressure balance equipment for tunnels up to 14-ft in diameter. Visit Akkerman Inc.


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Deep Foundations Institute (DFI)

The DFI is an international network of heavy construction professionals dedicated to quality and economy in foundation design and construction. For over thirty years, DFI has gathered professionals in the deep foundations sector of the […]

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Angiel EnviroSafe, Inc.

Based in Miami, Florida, Angiel EnviroSafe, Inc. operates a twin engine airplane with a large camera hole for airborne data acquisition, including aerial photography, LIDAR and other remote sensing methods. Visit Angiel EnviroSafe, Inc.


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TerraSystems Incorporated

TerraSystems is a geotechnical contracting firm specializing in dynamic compaction, rammed aggregate columns, wick drains, and various vibro systems for improving poor soil conditions. They are based in Lovettsville, Virginia. Visit TerraSystems Incorporated

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Bittner-Shen Consulting Engineers, Inc (BSCE)

Bittner-Shen Consulting Engineers, Inc (BSCE) is based in Portland, Oregon and specializes in the design of major marine structures including: bridge foundations, locks, dams, immersed tunnels, offshore structures, harbor facilities, marine outfalls/intakes, and deep marine […]