Across the United States, Hanson has completed diverse and challenging geotechnical projects. Our geotechnical engineers have put their skills and expertise to work on:

• Ten major bridges over the Mississippi, Ohio and Illinois rivers;
• More than 110 miles of tunnels in rock and soft ground;
• More than 200 dams and levees;
• Subway systems in Atlanta, Ga.; Boston, Mass.; Pittsburgh and Philadelphia, Pa.; and Washington, D.C.;
• Nuclear power plant underpinning designs;
• More than 3,000 communication towers;
• More than 150 railroad bridges; and
• Low-level radioactive waste facilities in six states.

Working to create solutions for you

We can provide geotechnical design services for a variety of structures requiring specialized and unique solutions, including:

• Bridges
• Buildings and multi-story facilities
• Communication towers
• Earth dams and levees
• Large industrial storage tanks and silos (LNG/LPG, fuel, grain and coal)
• Pump stations
• Retaining walls
• Road and railway embankments
• Tunnels and subways

Laboratory services

Hanson’s geotechnical services are enhanced by a state-of-the-art, in-house laboratory. Here our staff tests the engineering properties of rock and soil samples, including consolidation, triaxial and hydraulic conductivity tests. We also test:

• Atterberg limits
• Moisture contents
• Moisture-density relationship
• Organic content
• Particle size distribution analysis
• Soil pH and resistivity
• Specific gravity
• Unconfined compressive strength
• Visual classification
• Wet and dry densities