Overview of Geotechnical and Geological Analysis, Modeling, and Engineering

Our geoengineering practitioners distinguish themselves by rapid development of an appropriate understanding of the geologic and environmental history of a site. Our geoengineering practitioners distinguish themselves by rapid development of an appropriate understanding of the geologic and environmental history of a site.

Geosyntec's nationally recognized geotechnical and geological engineering practitioners specialize in developing engineering projects and services that enable the most efficient use of geotechnically challenging sites through the application of advanced technologies and proven practice leadership.

Our services are designed to provide our clients with dependable, cost-effective solutions and services that are customized for each client in order to meet aggressive construction schedules.

Geotechnical Infrastructure and Foundation Engineering

Our geotechnical infrastructure and foundation practitioners focus on difficult and challenging sites where the development of dependable and cost-effective foundations is critical to the success of the project. Geosyntec's specialized foundations and other subsurface structures are constructed to withstand potential geohazards, respond to increasingly unfavorable conditions, and to safely and adequately support the built environment.

Geohazard Response and Mitigation

Geosyntec provides practical engineering solutions to challenging projects and sites where geohazards are present, including seismic events, landslides, and other geographical and topographical hazards. We assist state and local agencies in evaluating the effectiveness of current building codes; limiting the effects of seismic events on private property and community infrastructure; forecasting and managing potential losses from geohazards to minimize their social, environmental, and economic impacts; and aid project planners in protecting properties and their investments from foundation risks.

Dams, Dikes, Reservoirs, Levees, and Conveyance Systems

Utilizing our expertise in geotechnical and geoenvironmental foundation engineering, water resources management, and environmental management, Geosyntec provides a full range of innovative services for new and existing dams, dikes, reservoirs, levees, and conveyance systems. Our practitioners respond to unique technical and environmental challenges facing federal, state, municipal, industrial, and private owners and operators to create site-specific solutions that are efficient, cost effective, and enduring.

Advancing the State of the Practice

We advance the state of the practice through our collaboration in applied research and development with leading universities on topics such as stresses and strains on geosynthetics during seismic events, site response analysis, and seismic design of municipal solid waste landfills and as active contributors and developers of the American Association of State Highway and Transportation Officials (AASHTO) Load and Resistance Factor Design (LRFD) Specifications for bridge substructures including foundations and retaining wall systems.

Many of our senior practitioners have authored technical design and construction manuals for the Federal Highway Administration (FHWA) focused on foundation support systems, earth retaining systems, and earthquake engineering, as well as more than fifteen guidance documents on design approaches to avoid or mitigate the potential impacts of geohazards in the built environment for state and federal environmental agencies, state and federal transportation agencies, and the U.S. Department of Defense agencies.

Geosyntec practitioners are consultants for state-of-the-practice design applications, geotechnical training instructors for the National Highway Institute (NHI) and the American Society of Civil Engineers (ASCE), and also provide technical training analysis to state departments of transportation and contractors. Several of our practitioners are recipients of the ASCE's highest awards for advancing the state of the practice in geoengineering.

Our Consultants

  • Rudolph Bonaparte, Ph.D., P.E., D.GE, F.ASCE, NAE

    Rudy Bonaparte is a Senior Principal Engineer based in Georgia with more than 30 years of professional experience focused on the areas of: geotechnical and geoenvironmental engineering; contaminated site, waterway, and sediment assessment and remediation; and solid, hazardous, and low-level radioactive (LLR) waste disposal facility permitting and design. He is a licensed professional engineer in 17 states. Examples of Rudy's practice experience include serving as: design engineer- ...
  • Robert Bachus, Ph.D., P.E.

    Robert Bachus is a Senior Principal engineer based in Georgia with more than 30 years of professional experience focused on geotechnical engineering, geoenvironmental engineering, waste by-product characterization, and the permitting and design of waste containment facilities. He provides analysis, design, and forensic investigation services on projects related to these practice areas. He also provides expert consultation on matters in litigation. Bob is nationally recognized for his ...
  • Kwasi Badu-Tweneboah, Ph.D. P.E.

    Kwasi Badu-Tweneboah is a Principal Engineer based in Florida with more than 30 years of consulting and research experience focusing on the design and construction of containment systems for solid, hazardous and radiological wastes, sediments, and surface impoundments. His clients include commercial waste disposal firms, municipal and local governments, petrochemical manufacturing, utility, pulp and paper processing industries, and land development firms in the Southeast and Midwest U ...
  • Karen Kosiarek, P.E.

    Karen Kosiarek is a Senior Consultant Remediation Engineer based in Montana with more than 15 years of experience focused on the characterization and remediation of soil and groundwater contamination at industrial and commercial properties. Prior to relocating to Montana, Karen practiced in Southern California for 14 years. For more than 50 brownfield redevelopments, remediation sites, and landfills in Southern California, Karen provided design and consulting services. Her professiona ...
  • Robert Bruce, P.E.

    Robert Bruce is a Senior Principal Engineer based in Malaysia with more than 30 years of experience focused on geotechnical, environmental, and civil engineering projects. Robert specializes in the design and management of complex environmental remediation projects, and engineering and construction related to oil and natural gas exploration, production, and processing in Thailand, Malaysia, Indonesia, Peru, Columbia, Bangladesh, China, Turkey, Philippines, Cambodia and the US. ...
  • J.F. Beech, Ph.D., P.E.

    Jay Beech is a Senior Consultant Engineer based in Georgia with more than 30 years of experience focused on design and construction of waste containment and subsurface barrier systems, sediment remediation, demolition and remediation of former industrial sites, and consulting on projects involving complex geotechnical and civil engineering issues. He has extensive experience managing complex projects involving municipal solid waste, hazardous waste, ash, coal combustion products, low-level ra ...
  • Christopher Hunt, Ph.D., P.E., G.E.

    Christopher Hunt is a Senior Principal Geotechnical Engineer based in California with more than 20 years of experience focused on managing and supporting a wide variety of geotechnical and geoenvironmental projects. As a consultant, Chris's project portfolio includes foundation investigations and designs for pile-supported structures and shallow foundations. He has analyzed and developed mitigation measures for landslides in bedrock, colluvium, and man-made fill, including probabi ...
  • 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 multiple projects involving the analysis, design, and inspection of anchored walls, landslide stabilization systems, soil nail walls, earth slopes, braced excavations, MSE walls, gabion walls, and deep soil mixing for earth and foundation support.  Paul has significant experience in the subsurf ...
  • David Espinoza, Ph.D., P.E.

    David Espinoza is a Senior Principal Geoenvironmental Engineer based in Maryland focused on foundation design over soft soils, design of regulated containment facilities, and more recently, financial evaluation of infrastructure investments taking into consideration physical risks such as climate change. David's solid waste experience includes permitting of disposal facilities for municipal solid waste, construction demolition debris, and industrial manufacturing wastes/residuals; des ...
  • Beth Gross, Ph.D., P.E.

    Beth Gross is a Senior Principal Geotechnical Engineer based in Texas with more than 25 years of experience focused on environmental site characterization and management, as well as siting, design, permitting, operations, construction, and closure of waste management facilities for municipal, industrial, and hazardous wastes, low-level radioactive waste, and remediation waste. Through her practice, Beth frequently aids clients in the design, permitting, and monitoring of alternative a ...
  • Ronald Johnson, P.E., G.E.

    Ronald Johnson is a Senior Principal Geotechnical Engineer based in California focused on the United State's most seismically active areas, throughout his career. He has led dozens of multidisciplinary teams as they tackled a wide range of challenging and multifaceted engineering projects, including post-fire erosion efforts and Brownfield redevelopment opportunities. An industry leader in developing innovative approaches for the design and evaluation of stormwater infiltration facili ...
  • Michael Houlihan, P.E.

    Michael Houlihan is a Senior Principal Engineer based in Maryland with more than 30 years of experience focused on industrial and municipal waste management, waste containment system design, geotechnical engineering, environmental remediation, revitalization of impaired properties, construction engineering, and litigation support, including expert witness work.  Examples of his recent projects include: closure and remediation of coal-ash disposal sites at electric-power generating st ...
  • Greg Corcoran, P.E.

    Greg Corcoran is a Senior Principal Civil Engineer based in California with more than 25 years of experience with a focus on the design, construction, and operation of engineered systems for waste containment facilities and brownfield sites impacted by contaminants in soil, soil gas, and groundwater.  During his career, he has become a recognized national expert in the design, permitting, and construction of liner and cover systems for municipal, industrial, mine, mill, and haza ...
  • Mark Grivetti, P.G., CHG, CEG

    Mark Grivetti is a Senior Principal Hydrogeologist based in California with more than 30 years of experience focused on characterization and remediation of hazardous waste sites, surface and groundwater resource management, and engineering geology studies for a wide range of projects. He brings creative environmental solutions to the redevelopment of complex sites impacted by soil and groundwater contamination. Mark's worldwide experience in the investigation and remediation of comple ...
  • Scott Luettich, P.E.

    Scott Luettich is a Principal Geotechnical Engineer and Director of Engineering for Geosyntec's solid waste management practice based in New England. He has more than 25 years of experience as the lead designer and/or project manager for the design, permitting, and construction of dozens of landfills located throughout North America. He has successfully led multi-disciplinary project teams for several large facilities, and has considerable expertise in conducting public hearings a ...
  • Daniel Schauer, P.G.

    Daniel Schauer is a Senior Principal Geologist based in Florida with over 24 years of geological, hydrogeological, and geotechnical engineering consulting experience focused on multidisciplinary engineering contracts for federal, municipal, and private clients throughout the U.S. and abroad. His practice focuses on construction management, construction engineering, landfill reclamation, construction QA/QC, and remedial system O&M. To assist his clients, Dan has used his geologic a ...
  • Denise Tripp

    Denise Tripp is a Senior Consultant based in Massachusetts with more than 30 years of experience focused on environmental assessment and remediation and litigation support projects for the paper, petroleum, nuclear power, and manufacturing industries across the United States. As a consultant, Denise's practice focuses on technical analyses related to hydrogeologic factors that affect groundwater flow and contaminant transport from hazardous waste disposal sites in support of litigatio ...
  • Rodolfo Sancio, Ph.D., P.E.

    Rodolfo Sancio is a Senior Principal Geotechnical Engineer based in Houston, Texas with more than 18 years of experience focused on geohazard evaluations, geotechnical site investigations, site development and ground improvement solutions, and advanced foundation analyses for large industrial facilities and civil construction. Rodolfo's practice focuses on onshore and offshore geotechnical engineering projects for the upstream and midstream oil and gas and petrochemical industry. He h ...
  • Cuneyt Gokmen, P.E.

    Cuneyt Gokmen is a Senior Principal Geoenvironmental Engineer with more than 20 years of experience focused in the areas of civil, geotechnical, and environmental engineering. Cuneyt specializes in the management of large, multi-disciplinary projects and programs, often regulated by federal and state regulations such as RCRA, CERCLA, Georgia HSRA, and Alabama RBCA. He has been involved with site assessment, remediation, environmental due diligence, regulatory compliance, design, and c ...
  • Majdi Othman, Ph.D., P.E.

    Majdi Othman is a Senior Principal Engineer based in Georgia with more than 25 years of engineering experience focused on geotechnical, environmental, and civil engineering projects. His practice focuses on waste management and containment; disposal facility siting, design, permitting, and construction; design and permitting of landfill gas collection and utilization projects; hydrogeologic investigations and groundwater impact analysis and protection; remediation of contaminated site ...
  • Glenn Rix, Ph.D.

    Glenn Rix is a Senior Principal Geotechnical Engineer based in Georgia with more than 25 years of experience focused on the areas of geotechnical earthquake engineering and engineering seismology. His practice includes seismic hazard assessment and mitigation for civil infrastructure including dams, power plants, and ports and harbors at both the component and system scales, as well as advanced near-surface geophysics investigations and interpretations across a range of applications. ...
  • Bertrand Palmer, Ph.D., P.E.

    Bertrand Palmer is a Senior Principal Engineer based in California with more than 20 years of experience focused on developing innovative approaches and designs for projects involving site assessment, remedial investigation, feasibility study, chemical fate and transport analysis, risk assessment, and soil and groundwater remediation. He is experienced in remediation system design, construction, operation, monitoring, and maintenance. With more than 20 years experience in geotechnical ...
  • Hari Sharma, Ph.D., P.E., G.E.

    Hari Sharma is a Senior Principal Geotechnical Engineer based in California with more than 30 years of experience focused on the design and construction of waste containment facilities and geotechnical structures and foundations in seismically active areas. Hari has been a leading practitioner in the engineering design, permitting, and closure of hazardous, industrial, and municipal waste landfills. He has pioneered design techniques widely used today for liner, leachate collection, a ...
  • Kenneth Fredianelli

    Kenneth Fredianelli is a Principal Construction Management Professional based in California with more than 30 years of experience focused on managing engineering, construction, and design/build projects for clients in solid, industrial, and hazardous waste, natural gas, power, petroleum, and chemical manufacturing sectors. His project management responsibilities include contract negotiations, front-end design, detailed engineering design, design/build, construction management, start-u ...
  • Krzysztof S. Jesionek, P.E.

    Krzysztof Jesionek is a Principal Environmental Engineer based in California with more than 35 years of experience focused on solid and hazardous waste management, including facility design and closure, permitting, construction management, and construction quality assurance (CQA) in the United States, Canada, and Poland. As a consultant, Krzysztof has managed both site assessments and remediation projects for contaminated groundwater and soil. He has prepared permit and design docum ...
  • Thomas Ramsey, P.E.

    Tom Ramsey is a Principal Civil Engineer based in Maryland with more than 20 years of experience focused on engineering design, construction management, and economic analyses associated with containment design and solid waste management. Prior to joining Geosyntec in 2002, Tom served over 10 years as an engineer and regional manager for a major private solid waste management firm. His business management experience "in the trenches" within private industry gives him unique insight on ...
  • Jamey Rosen, P.Geo.

    Jamey Rosen is a Principal Hydrogeologist based in Ontario with more than 15 years of experience focused on database design and management, geographic information systems (GIS), and remediation project management. Jamey has managed data for projects and facilities throughout the United States and Canada. As an environmental hydrogeologist, his experience includes site characterization, statistical analysis, numerical modeling, and conceptual design of engineered remediation systems. J ...
  • Willem Villet, Ph.D.

    Willem Villet is a Senior Principal Engineer based California with more than 30 years of experience focused on providing strategic planning consulting, advanced geotechnical engineering solutions, and geohazard analyses on infrastructure projects worldwide for industrial clients, particularly those involved in oil and gas exploration, petroleum refining and petrochemical manufacturing, and minerals extraction and processing As a specialty consultant on the development of appropriate s ...
  • Jesse Varsho, P.E., P.G.

    Jesse Varsho is a Principal Engineer and Geologist based in Illinois with more than 15 years of experience in environmental consulting, landfill engineering, construction quality assurance, permitting, compliance, and project management for solid waste management clients throughout the United States. Jesse's practice includes helping clients by developing of designs and construction of landfill liners, leachate collection systems, landfill gas collection systems, final cover systems, ...
  • Juan Pestana, Sc.D., P.E.

    Juan Pestana is a Senior Principal Geotechnical Engineer based in Massachusetts with over 30 years of experience focused on computational geomechanics, geotechnical engineering, and geotechnical earthquake engineering. Prior to joining Geosyntec, Juan spent 22 years as a professor in the Civil and Environmental Engineering Department at the University of California, Berkeley. He performed research in geomechanics with application to computational geomechanics, geotechnical, earthquak ...
Geosyntec Consultants
Geosyntec is a specialized 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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