We dig with a higher purpose.

Our Mission & Values

We improve the lives of our community, our partners, and our family by going beneath the surface to build America’s essential infrastructure.

Our Story

Midwest Mole has been a family-owned and oriented company from the beginning. Len Liotti started the business in 1982 after earning over a decade of tunneling experience. Rather than staying with his employer ― who was relocating from Indiana to St. Louis ― he decided to start his own tunneling business, with help from his wife and a business partner.

In the beginning, Midwest Mole focused on smaller tunneling projects across the Midwest. The company steadily grew as Len’s son, Dan ― who owns the business now ― joined the company and worked his way through the ranks.

The father-son duo took extraordinary care to grow meaningful relationships with not only equipment manufacturers, but also with other tunneling companies around the US. Thanks to their genuine friendships around the industry, more and more tunneling opportunities appeared on both coasts and everywhere in between.

Midwest Mole capitalized on the new opportunities thanks to our decades of industry experience, unique capabilities, and relentless problem-solving. We’re proud to have a talented field team, along with the dedicated and experienced fabricators in our shop, and the transport drivers who mobilize our equipment anywhere.

Why do we keep coming into work, even when the odds are stacked against us? The world of tunneling is unique and challenging. The ground conditions are king, and we never know what we’re going to encounter on each project we build. Some projects are flawless, while others require every year of experience our team members have. The challenge and excitement from our business is hard to find elsewhere. In short, we love what we do.

Today, we have projects not only all over the Midwest, but also east to D.C., and west to Arizona. We tunnel under railroads, highways, buildings, and even airports. While Dan ― and our company president Jason Miller ― provide extraordinary leadership, we’d be nowhere without our dedicated and hard-working teams. With such a strong family and company history, we plan to proudly tunnel anywhere our expertise and capabilities fit for decades to come.

Average revenue growth for past 3 years
Average tenure of our associates

No Project Too Large

Even with our nationwide expansion, the biggest project that catapulted us to the next level was the Indianapolis Airport in 2007 ― a project that saw Midwest Mole win Project of the Year from Trenchless Technology Magazine. We installed an 8.5-foot diameter tunnel that stretched for 2,000 feet under the runways for the new midfield terminal. That was by far the largest project we’d ever done, and opened the door for us to perform bigger and more complex work to this day.

Proud Members Of


Hall of Fame

The Midwest Mole Hall of Fame is a way for us to recognize the contributions provided by our longtime team members. The plaques honoring these men and women hang in our office 365 days a year, reminding us of those who helped build this incredible company into what it is now.

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Liotti Family Honored as Founders of Midwest Mole

Dan Liotti

Former CEO

Every once in a while, you meet someone who stands out because they’re so true to who they are. A man with an unmistakable smile and nothing hidden. He may own a successful business, but his dress shoes are still caked with mud. He’s smart, never condescending, and trustworthy in the smallest details.
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Our Awards

2019 NUCA Top Jobs Award

Midwest Mole was awarded NUCA's top 2019 trenchless construction job award and the top overall job award for their part in a wild emergency project in Kentucky.

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2015 Trenchless Technology Person of the Year

Since 1993, the Trenchless Technology Person of the Year award has recognized recent successes and lifetime achievements in the advancement of trenchless technology.

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2015 Design-Build Institute of America National Merit Award

DBIA’s National Project/Team awards are given annually to projects that exemplify the principles of Design-Build Done Right®. The recipients demonstrate the power of collaboration in projects that are as varied as they are resilient, innovative, cost-effective, and beautiful.

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2014 AGC Washington DC Contractor Award

Associated General Contractors of Metropolitan DC provides this award to recognize outstanding projects and contractors in the greater DC area.

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2007 Trenchless Technology Project of the Year

Presented by Trenchless Technology Magazine, the Project of the Year award is given to contractors who excel in the categories of New Installation or Rehabilitation.

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