Geotechnical Engineering

One of AES’s greatest strengths lies in its ability to carry out careful detailed bedrock mapping and analysis of geologic structure and geotechnical engineering core logging on oriented core for slope stability calculations.  AES provides engineering groups and landowners assessments of foundation conditions, natural hazards and material sites by interpreting remote imagery and aerial photography, coordinating subsurface geophysical studies and acquiring water, soil and bedrock geochemical survey data.

AES has been working with LiDAR datasets since 2010.  LiDAR has proven to be a useful tool in minimizing field time by allowing for the identification of geologic features, such as faults, lithologic contacts and bedding prior to going to the field.  Using the bare earth returns from the LiDAR datasets has enabled us to identify numerous features that would normally be masked under vegetative cover.

AES's experience in geological engineering began nearly 30 years ago when AES President Rob Retherford began working for the startup R&M Engineering group to study the Trans Alaska Pipeline System. Later work included several hydroelectric site investigations, water and wastewater studies, and rock quality data for open pit design.

AES services include:

  • Project planning, management and staffing
  • Assessment of alternative rights of way
  • Assessment of geological properties of potential geothermal and hydroelectric sites 
  • Logistical support and equipment rental for remote field programs
  • Stakeholder Relations
  • Diamond drilling with oriented core capabilities

Our clients include:

  • Alaska Department of Natural Resources
  • Alaska Department of Transportation
  • Aleut Corporation
  • Arctic Engineering
  • Bristol Bay Native Corporation
  • Calista Regional Corporation
  • Chugach Alaska Corporation
  • City/Borough of Juneau
  • Cook Inlet Region, Inc. (CIRI)
  • Duane Miller and Associates
  • International Engineering Company
  • Koniag Incorporated
  • Municipality of Anchorage
  • Newmont
  • Placer Dome, U.S. (now Barrick Gold)
  • University of Alaska Fairbanks
  • Teck Alaska

see geotechnical engineering featured projects
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“While one of our main objectives is to provide our clients with excellent geologists, we are much more than a temp agency. We do not merely keep geologists in the queue; we play an integral part in their professional growth process. We are committed to both our clients and our employees and strive to find the best fit for all involved.” Robert Retherford, President