John Grennan

John Grennan

John Grennan has been employed by Ward & Burke for 10 years since graduating as a Civil Engineer. During this time, he has managed and supervised the installation of 150,000 feet of microtunnel in Ireland, UK, and Canada. He now acts as Director of Ward & Burke in Canada and the USA.

Don Bergman

Don Bergman

Don Bergman’s career in construction has taken him from Prudhoe Bay Alaska working on the Trans Alaska Pipeline to microtunnel and large public works projects all over the mainland United States and Hawaii. Bergman has been in his current role as Chief Estimator for Frank Coluccio Construction for nearly 25 years, where his duties have…

Troy Stokes

Troy Stokes

Troy Stokes is an International Sales Manager for Akkerman Inc., a leading manufacturer of tunneling, microtunneling and small-diameter pipe jacking equipment. Stokes is responsible for market development and support in North America along with Australia and New Zealand. Stokes’ career in the underground construction industry has spanned nearly four-decades with expedition in over twenty countries.…

Glenn M. Boyce, PhD, P

Glenn M. Boyce, PhD, P

Glenn Boyce is a Principal and supervising tunnel/geotechnical engineer with McMillen Jacobs Associates out of Walnut Creek, CA. Glenn has 34 plus years of experience. This extensive experience covers virtually every aspect of trenchless, tunnel, shaft, and geotechnical engineering design and construction. He has served as an engineer, lead engineer, project manager, technical reviewer, and…

Levent Ozdimir

Levent Ozdemir

Levent Ozdemir, president of Ozdemir & Associates, spent 32 years as a professor at the Colorado School of Mines, where he developed and taught undergraduate and graduate courses in design and construction of underground structures, tunneling, site investigations, excavation project management and underground mining. He led pioneering research in the field of mechanical rock excavation…

Gerhard Lang

Gerhard Lang

Dr. Gerhard Lang’s background is in civil and mechanical engineering. After working for Herrenknecht as project manager on some traffic tunneling jobs in Europe, he finished his Ph.D. in civil engineering and an MBA in international marketing before he went to work for Amiantit. He returned to Herrenknecht in 2008 as business development manager for…

Timothy Coss

Timothy Coss

Tim Coss started the Microtunneling Short Course in 1994 at a time when microtunneling was still gaining acceptance in the utility construction industry. A former contractor, Coss recognized the need for an educational venue to help owners, contractors and engineers better understand the emerging technology. Since its founding, the Microtunneling Short Course has become the…

Steve Hunt

Steve Hunt

Steve Hunt is a professional geotechnical engineer and senior tunneling technologist at CH2M based in Henderson, Nevada. He has more than 39 years of experience with tunneling and underground construction across North America and globally. Hunt has been lecturing on microtunneling in cobbles and boulders since 1999 and has written more than 15 papers on…