Geotechnical Engineering
The subsurface is often thought of as a “black hole” full of risk and uncertainty. GSG has the experience to reduce this uncertainty by offering innovative, strategic, and cost-effective solutions to the underground challenges often arise during design and construction. We provide geotechnical analysis, design, and construction services to architects, structural engineers, developers, and contractors. Our experience includes highways, earth fill embankments, tunnels, bridge structures, and industrial/commercial buildings.
- Foundation Analysis and Design
- Excavation Support Systems
- Embankments, Slopes, and Retaining Systems
- Groundwater and Seepage Control
- Soil Stabilization and Ground Improvement
- Pavement Design and Sub-Grade Evaluation
- Forensic Engineering
- Litigation Support
- Construction Monitoring, Testing & Instrumentation
- Field and Laboratory Testing

The design and construction of functional structures requires a thorough understanding of local soil, rock and groundwater conditions. We implement comprehensive investigation programs and provide sound geotechnical engineering recommendations based on theoretical and practical analysis of data. We integrate this information into design plans, specifications, and associated contract and bid documents. GSG can also provide complete inspection and testing services to ensure that the project is being constructed in accordance with design specifications.
Want to learn more?
Ala E. Sassila, Ph.D., P.E.
Principal, Chief Engineer
asassila@gsg-consultants.com
Phone (312) 733-6262
855 West Adams, Suite 200
Chicago, Illinois 60607