Kris Dobbs

Meet our employees

Kris Dobbs

Assistant Controller for our US Operations Arizona Office

What’s your name and role, and what division do you work under at The Crossing Group?

My name is Kris Dobbs (aka KD) and I am currently the Assistant Controller for our US Operations Arizona Office.

Where did you start and what has your career path been like at The Crossing Group?

I started with The HDD Company back when it originated in 1998. Before that, I was a stay at home mom, so I lacked experience and learned largely by trial and error. I worked to hone in on my knowledge of every aspect of the drilling business and build lasting relationships with people in the industry. This has allowed me to develop and earn the respect I have in my position today. Over the years, I have learned resilience, patience, and responsibility and that there is always a way to get it done.

What’s the most rewarding (or favourite) part of your role?

Life and this business have taught me that it takes a team to make things happen. As a result, I developed the ability to bond with those I work with, whether it be a peer, a contractor, a government entity, a vendor, or the guy that orders our checks. Finding those connections is my strength, and connecting with people is my favorite part of the job.

What’s your favourite thing about working at The Crossing Group?

My favorite thing is definitely the people I work with. The HDD office has always been a tight group that enjoys being together and supporting one another.

As the Assistant Controller, my role is to support all projects. Knowing that I have enabled the teams to accomplish their goals in meeting time and budget constraints makes me feel like a valuable asset to all projects.

What advice would you give to someone looking to work in a role such as yours at The Crossing Group?

As a cancer survivor, I received such strong and sustaining support that I vowed to pay it forward. My advice would be to always look for the human element. Everyone has a story that we may not know. Be patient, be kind. When you find that connection, it can help you to overcome a multitude of problems.


Tunnel Boring and Pipe Jacking Systems are used to hydraulically install underground pipelines up to 4.2 m (168 in) in OD range within strict alignment and grade tolerances. The likelihood of settling or sloughing is very low. Wheel machines are equipped with various cutter heads and sand shelves. A closed-face attachment is available for boring in unstable ground conditions. This versatile system can be easily adapted to work with any jacking pipe, in any pipe joint length. It can accommodate a wide range of pipe diameters.

Tunnel Boring Machines are used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through hard rock, sand, and almost anything in between. Tunnel diameters can range from 1 m and exceed 15 m (3 ft to 49 ft).

The Crossing Group - The Tunneling Company - Tunnel Boring - Pipe Jacking - Trenchless Construction - Tunneling - Augering, Boring & Pipe Ramming


A boring technique commonly used for installing oil & gas pipelines ranging from 51 mm to 1067 mm (2 in to 42 in) in diameter without leaving casing in the ground. Product pipe is welded to steel casings and either pushed or pulled through the ground in sections. The casing is cut off and removed, leaving just the product pipe. Maximum installation length is 150 m (492 ft).

The Crossing Group - The Tunneling Company - Slip Boring - Trenchless Construction - Tunneling - Augering, Boring & Pipe Ramming


A pneumatic hammer is attached to the inside edge of the casing. The front of the DTH breaks cobles, boulders and even solid rock into small pebbles or dust. The spoil makes its way through the hammer and into the casing, where it is removed by airway augers.

The Crossing Group - The Tunneling Company - Down The Hole Hammer - DTH - Trenchless Construction - Tunneling - Augering, Boring & Pipe Ramming


A Guided Boring Machine (GBM) is used to install 305 mm to 3.6 m diameter pipe (12 in to 144 in) with grade and alignment precision. It is commonly used for installations 50 m to 150 m in length (164 ft to 492 ft) or when line and grade accuracy is critical in displaceable soil. Our GBM is extremely versatile and our customers continually approach us with new applications.

The pipe installation involves a two-step process where launch and reception shafts are strategically located to minimize surface disruption. A pilot tube with a theodolite guidance system is then pushed through the ground at the precise grade and alignment specified in the design into the reception shaft. A reaming head is welded to the pilot tube and the casing and the pilot tube is used as a guide to install casing. The GBM can be used in conjunction with auger boring or pipe ramming methodologies.

The Crossing Group - The Tunneling Company - Guided Boring - Trenchless Construction - Tunneling - Augering, Boring & Pipe Ramming


Pipe Ramming is used in a wide variety of soil types including gravel, cobble or sand. A pneumatic hammer is attached to the back of the casing pipe and driven through the material at any angle: from horizontal to vertical. The material is cleaned out of the pipe using an auger boring machine. Pipe Ramming methods are used for pipe diameters of 305 mm to 3.6 m (12 in to 144 in).

The Crossing Group - The Tunneling Company - Pneumatic Pipe Ramming - Tunneling - Augering, Boring & Pipe Ramming