From buildings, bridges and tunnels to transmission lines, pump stations, dams and more, we understand your geotechnical needs.
Geostructural engineering solutions
Whether you need a foundation design for a high-rise building, slope stabilization for infrastructure projects or support for a deep excavation in an urban environment, our geostructural team is dedicated to delivering resilient solutions.
Our advanced knowledge supports innovative, resilient and cost-effective structural and geotechnical solutions to improve performance, reduce risk and enhance constructability. We provide you with extensive experience in geostructural analysis, design and implementation for a wide range of projects with complex subsurface conditions.
Our geostructural engineering services support a diverse range of sectors, including:
- transportation infrastructure: bridges, tunnels and retaining systems for roadways and railways
- buildings and facilities: foundations, basement walls and below-grade structures for commercial, industrial and institutional developments
- water resources and environmental projects: dams, spillways, levees and containment structures requiring geotechnical reinforcement
- energy and industrial facilities: foundations for power plants, transmission towers and heavy machinery

We tailor our capabilities to the unique demands of your project, with services for:
- deep foundations and pile systems: design and analysis of drilled shafts, driven piles, micropiles and helical piers for structures requiring robust foundation support
- earth retention systems: development of retaining walls, soil nail walls, anchored systems and mechanically stabilized earth walls for stability in challenging terrains
- slope stability and landslide mitigation: assessment and remediation of unstable slopes, including rockfall protection, ground anchors and reinforced earth solutions
- excavation support and shoring: design of temporary and permanent excavation support systems, including sheet piling, secant and tangent walls and braced excavations
- tunneling and underground structures: engineering solutions for tunnel linings, support systems and structural elements for underground infrastructure projects
- soil-structure interaction analysis: advanced modeling and simulation for the integration of structural and geotechnical elements
- Dams and levees
We recognize that dam and levee design requires several engineering disciplines: geotechnical design of foundations; embankment and seepage analysis; structural design of spillway structures; mechanical design of gated structures; and water resources analysis of water inflow and hydraulic capacity of dam components, including spillway, emergency overflow and drawdown. Our team specializes in these services in addition to dam and levee inspections for public and private clients. Find out more.
- Floodwalls, water control and flood damage reduction
We can help you with your water control needs, including hydrology and hydraulics, floodwalls and gates, seepage analysis, web-based bridge monitoring, pump station design and lock repair. Find out more.
- Geotechnical engineering
When you undertake a geotechnical project, you want a partner with a comprehensive understanding of subsurface characteristics, hydrogeology and hydraulics, environmental science and the auxiliary services your project may require. We provide solutions to complex and challenging geotechnical problems, digging deep to bring you top-quality results. Across the U.S., we have completed diverse and challenging geotechnical and geoscience projects — from buildings, bridges, tunnels, liquefied natural gas tanks and transmission lines to pump stations, dams, levees and low-level radioactive waste facilities. Find out more.
The 3D capabilities of computational fluid dynamics can be a game changer for your water resources project.
The complex web of environmental regulatory requirements can be a high hurdle for many projects. With our guidance, you can smoothly navigate the path to a completed permit checklist.