Earth Retaining Structures and Excavation Support

Since its founding in 1983, Geosyntec has provided high-value solutions to industrial and public sector clients in projects that include geotechnical and geo-structural aspects. Our professionals have developed capabilities and experience in the analysis, design, and constructability assessment of retaining structures, deep and shallow foundations, ground improvement, geotechnical instrumentation, construction over soft ground, and other aspects of geotechnical engineering.

Geosyntec provides specialized geotechnical engineering services to develop and improve the design and construction of foundations over soils/rocks under favorable or challenging conditions. Our geotechnical engineering specialists form one of the leading practices in the United States. They are recognized for their ability to develop practical guidance and efficient designs conducive to innovative solutions and aggressive construction schedules imposed by project economics.

Our geotechnical engineering practice focuses on difficult and challenging sites where the development of dependable, cost-effective foundations and other geo-structural solutions are critical to the success of the project. Our practitioners accomplish this by establishing a thorough understanding of the project site, developing a technical framework for the project, and incorporating the critical non-engineering drivers such as schedule and project economics into the early stages of our planning.

Our geotechnical professionals have responded to the challenges of increasingly unfavorable site conditions by developing and applying sophisticated approaches to investigate and characterize sites; analyzing foundation behavior; improving engineering characteristics of soils at a specific site through soil modification; and combining these solutions while remediating those sites that require environment cleanup and remediation. We implement these approaches so foundations and other subsurface structures can be constructed safely, adequately support the built environment, and withstand potential geohazards. In some projects, our designs were part of sustainability or LEED certification efforts.

Our senior practitioners have authored technical design and construction manual for the Federal Highway Administration (FHWA) focusing on foundation support systems, earth retaining systems, and earthquake engineering. Our engineers have authored or co-authored most of the FHWA series titled Geotechnical Engineering Circulars (GECs). These include GECs on Earth Retaining Systems, Earthquake Engineering for Highways, Ground Anchors and Anchored Systems, Evaluation of Soil and Rock Properties, Soil Nail Walls, Design and Construction of Continuous Flight Auger Piles.

Lead Consultants

  • Paul Sabatini, Ph.D., P.E.
    Paul J. Sabatini, Ph.D., P.E., D.GE. is a Senior Principal with Geosyntec Consultants in their Oak Brook, Illinois office.  He has been a practicing engineer for 22 years and has been involved in ...
  • Logan Brant, Ph.D., P.E.

    Logan Brant is a Principal Engineer based in Texas with more than 13 years of professional experience focused on geotechnical engineering.

  • Alexander McKenzie-Johnson, P.G., L.G., L.E.G
    Alexander McKenzie-Johnson is a Principal Engineering Geologist based in Texas with more than 17 years of professional experience focused on geohazard assessment and management for oil and gas clie ...
  • Terence Holman, Ph.D., P.E.
    Terry Holman is a Senior Principal Engineer with more than 25 years of professional experience focused on the areas of: geotechnical and geostructural engineering; design; construction management; ...
  • Ali Nasseri-Moghaddam, P.Eng.
    Ali Nasseri-Moghaddam is a Principal Geotechnical Engineer based in Ontario with more than 25 years of professional experience in the areas of geotechnical, dam, and structural engineering. His exp ...
Geosyntec Consultants
Geosyntec is a consulting and engineering firm that works with private and public sector clients to address new ventures and complex problems involving our environment, natural resources, and civil infrastructure.

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