Sioux City: 712-252-5132

Serving the Tri-State Area

Certified Testing Services Inc - Logo

Storm Lake: 712-213-8378

Geotechnical Engineering Trucks

Geotechnical engineering is the first building block to a successful construction project. Using soil and rock mechanics, Certified Testing Services Inc can provide you with site-specific design information to helf your construction go smoothly.


From our recommendations, your design team can more accurately design the foundations, floor slabs, pavements sections, lagoons, and other structures. Geotechnical engineering can also be used to determine a remedial action for distressed structures.

What is geotechnical engineering?

Why do you need geotechnical engineering?

By exploring the subsurface before beginning your construction project, you can minimize the chance of future complications with your site. Projects designed using geotechnical studies have shown to have a reduced cost and a longer lifespan.


Your complete satisfaction is our top priority. That's why we only employ the top engineers and technicians in the area. After over 30 years in the industry, we continue to improve our workforce by investing in the training and development of all our valued staff members.

Call us to learn more about geotechnical engineering!

Sioux City



Storm Lake


Your cost-effective construction project begins here

Geotechnical engineering services

  • Shallow foundation design

  • Deep foundation design

  • Slope stability analysis

  • Earthen dam design

  • Borrow pit evaluation

  • Building distress analysis

  • Lagoon design

  • Pavement thickness design

  • Bridge soundings

  • Soil classification