HORIZONTAL DOWN THE HOLE (DTH) HAMMER
Bortech's DTH Horizontal Hammer System completed our 200' of 48" steel casing in one week. The hammer bit easily drilled through boulders, cobbles, and two sections of hard ledge rock. All methods that we have used in the past would have resulted in months of hand tunneling.
- Victor Serricchio, President or Northbrook Contracting Corp
WHITE PLAINS, NY
NYS-DOT
Crossing the Sprain Brook Parkway
A Proven Partnership
When Northbrook faced the daunting task of crossing the Sprain Brook Parkway, they knew exactly who to call.
With our expertise and advanced technology, we were able to provide Northbrook with the tools necessary to navigate the complexities of the project, ensuring that they could meet both their budget and timeline without compromising quality.
The Challenge at Hand
Northbrook was awarded the Rumbrook-Knollwood Interconnection Water Transmission Main project, which required crossing the Sprain Brook Parkway, a task fraught with potential complications.
The project specifications outlined by Arcadis Engineering called for the installation of a 200-foot, 48-inch steel casing sleeve to accommodate a 24-inch water main carrier. However, the bore site presented a host of challenges. Located in a fill zone, the area was characterized by unpredictable topography, and geotechnical reports indicated the presence of boulders and cobbles along the bore path. With only two borings taken—one at the entry pit and the other at the exit pit—much of the ground conditions remained a mystery.
Leveraging Expertise to Avoid Setbacks
Understanding the risks associated with traditional auger boring methods, Northbrook sought a more efficient solution.
Encountering boulders and cobbles could have stalled progress, requiring change orders and potentially resorting to hand tunneling—a method that typically yields only 3 to 5 feet of advancement per shift. Such delays would not only inflate the project budget but also jeopardize the completion timeline.
This is where Bortech Inc. came into play. Our Down The Hole (DTH) Hammer system, developed in collaboration with Northbrook, proved to be the perfect solution.
We Don't Just Create Tools—We Create Solutions.
At Bortech Inc., we don’t just create tools. We create solutions that empower our partners to overcome their toughest challenges.
If you’re looking for a collaborator who understands the intricacies of underground boring and is ready to innovate alongside you, let’s connect. Together, we can turn obstacles into opportunities.