Tunneling and Boring Services

Our Experience

There is no standard approach to a tunneling or boring project. Soil conditions, site placement and the unique needs of the tunnel all factor into the planning of a successful tunneling project. Our teams have decades of hands-on experience in the field, delivering quality work safely, on time and on budget. We are able to evaluate a range of soil conditions to determine the best solution for your project:

• Soft Ground Tunneling
  • Such solutions include hand mining, slurry and earth pressure balance machines and tunnel boring machines.
• Rock Tunneling
  • In some of these cases, smart engineering is required to create support structures within the tunnel to ensure both the safety and the efficacy of the build. At Kolb Grading, every technique from tunnel boring machines to drill and blast methods can be utilized to help facilitate the project.
• Hand-Mined Tunneling
  • This technique can be used to create a tunnel of almost any size, including railroad applications or road crossing tunnels.

Why Kolb Grading?

Kolb’s strength lies in our commitment to every task being done according to the highest quality standards without compromising our key principles of safety, integrity and teamwork. We specialize in taking on underground tunneling and boring construction challenges, delivering maximum efficiency and time-tested results. As a family-owned company for over six decades, we are committed to finding the most efficient and cost-effective solution to your project’s needs. No matter the size and scope of your tunneling project, we will build a custom solution to help fit your project’s needs and budget. Our goal is to partner with you on your project from start to finish.