Underground and aerial utilities construction, installations, and more...

We perform directional bores, missile bores, trenching, fiber pulling, fiber splicing, and aerial installations with state-of-the-art equipment.

What we do?

A Proven Process for Horizontal Directional Drilling..

Locate Existing Utilities – It’s important to know where existing utilities may lie prior to beginning any boring or excavating operations. Advanced Precision Utilities utilizes the state’s 811 locating service as well as private locating to ensure that boring operations will not disturb buried services. Technologies such as Ground Penetrating Radar (GPR), Electromagnetic Induction (EMI), and hydro-excavation are used to designate (“mark”) and uncover (“daylight”) existing subsurface utilities. Proper marking and valid locate tickets are an important aspect of reducing the risk of directional boring activities.

Site Survey – Prior to creating the work-plan, a boring foreman or project manager conducts a site-survey to ensure that all potentially knowable information regarding the jobsite and existing utilities has been considered. The presence of water hydrants, utility boxes, or other topside features is reconciled with previously performed locates to ensure that nothing has been overlooked. Some buried utilities may be vacuum excavated to visually verify their depth, position and orientation.

Pre-Work Planning & Safety Meeting – The Bore-Team foreman creates a work plan detailing each step of the work to be performed. Consideration is made for both topside and buried hazards (electrical, soil stability, traffic, etc.). An on-site pre-work meeting is held to ensure that each team member understands the work plan, is equipped with necessary Personal Protective Equipment (PPE), and is made aware of all potential safety hazards present on the work site. Safety barriers, maintenance of traffic (MOT), and visual aids are setup at this time.

Drill Setup & Mud Mixing – Staging of the directional drill, conduit/pipe, and ancillary equipment is performed while drilling mud is mixed to prepare for drilling operations. Entry and exit pits may be excavated at this time.

Drilling Begins – An experienced drill operator and drill head locator lead the drilling operation. As the drill head penetrates the earth, additional drill rods are added as needed to extend the length of the drill path.

Drill Steering (drill-head locating) – The drill operator steers the drill head under and around existing obstacles and buried utilities using guidance data provided by an electronic beacon located inside the drill head.

Drill Head Exit – As the drill path reaches its terminus, the drill head exits at a predetermined location.

Reaming & Pull-Back – The bore head is replaced with a reamer and attached to the pipe/conduit to be installed via a swivel. Bore mud is pumped through the drill rods to hold the bore open and provide lubrication while the pipe/conduit is pulled back through the original bore path. Installation of larger pipe/conduit may require additional reaming pull-backs prior to pulling the pipe/conduit.

Additional Bore Information

Basic Directional Drilling Parameters:

Directional Drilling can be performed in virtually all soil types and conditions.

Typical Single Bore Path Length: 200-400′.

Typical Pipeline/Conduit Diameter: Up to 6″.

Combinations of Smaller Conduits Can Be Installed Simultaneously. Composition of Drilling Mud: Primarily Refined Bentonite Clay & Water (non-toxic).

Missile Boring Service

For installation of shorter runs of pipe/conduit under 3″ in diameter, All South Underground also offers missile boring services.

Missile Boring, sometimes referred to as “mole boring”, is a process that involves the use of an air-powered percussion tool (“missile”) that punches its way through soil, opening up a bore path in its wake. A “missile” bore is not steerable, and works best in reasonably dry soils. Missile boring is typically utilized for single bores under 50′ or for longer bores where progress pits may be excavated every 40-60′ to extend the bore path.

Directional Drill Bits (various soil conditions)

Missile Boring – Steps:

1. Entry Pit: An entry pit is excavated such that the “missile” may be positioned to begin the bore.

2. Aim & Shoot Bore “Missile”: The “missile” is carefully aimed, taking into account soil conditions and desired path. A large air compressor supplies air to the missile, powering its repetitive percussive action.

3. Progress Pit – Re-Aim: If a change of direction or a path of longer than 50′ is desired, progress pit is used to receive and re-aim the missile towards the next pit; a new “shot” is begun.

4. Exit Pit: A final Exit Pit is excavated to collect the missile at the terminus of the bore path.

5. Utility Installation: Depending upon the conditions, pipe/conduit is pushed or pulled through the bore path from pit to pit, resulting in a continuous length of installed utility.

6. Cleanup and Restoration: After missile boring operations are complete, the site is cleaned up and restored to its original condition.

Why choose us?

Because Safety is Paramount
Safety is about more than risk mitigation. At Aputilities safety is a cultural priority that encompasses training, use of proper protective equipment, and a strong emphasis on situational awareness. Our staff understands that the key to avoiding risks is recognizing them before they pose a threat.

Because Acceptance is Key
Experts at navigating federal, state, and municipal regulatory requirements, we’ve helped countless customers obtain the acceptances necessary to complete their projects on-time and on-budget…and when things get complex, we’re happy to meet with our customers, engineers, and inspectors from State, Department of Transportation, County, or City offices to discuss planning and technical issues before they become a problem.

Because Sometimes You Just Need it FAST
We will generally provide a proposal for your project, including tentative scheduling, within 24 hours…but sometimes when an Emergency arises, you need service NOW. With one of the largest fleets in the region, Aputilities moves mountains in Emergency situations; just ask any number of our satisfied customers. We’re there when you need us.

Because We’ve Been Around And We Aren’t Going Anywhere
Aputilities is a lawfully licensed Certified General Contractor. No need to station a direct supervisor wherever our crews are working; we’re licensed for what we do. We also carry a full compliment of general and professional liability insurance coverages as well as bonding when necessary.

Because Your Success is Our Success
We want nothing more than to see you succeed…and you have our promise that we will do everything reasonably possible on our part to see that you do. The best partnerships are built on mutual respect and shared interest. When you succeed, we succeed.

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