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Utility Potholing & Vacuum Excavation for Your Underground Work

The value of precision in any construction project is hard to overstate. If the technology age has taught us anything, it is the value of miniaturization, precise tolerances, and optimizing the process of building a solid foundation for future improvement.

The high-tech environment comes with its share of challenges, however. Beneath our feet is a maze of electrical connections, gas lines, sewer, and water lines and data cables. It seems every building has its own collection of interfaces to city and county facilities. Things are only going to get more complex as time goes on. Construction crews, contractors, and even utility workers can’t afford to make mistakes when it comes to surveying a site for repairs, new construction, or simple maintenance checks.

The solution is to find a company with the experience and the tools to make vacuum excavation and utility potholing simple, quick and effective.

Keeping It Simple

Vacuum excavation services relies on what would seem to be the simplest of principles. Dirt and debris are mixed with water, liquified, and extracted with a high-powered vacuum. It is what regulators call a “non-destructive” process. This new and effective means of removing dirt and rocks from around sensitive underground facilities is now required by some states when crews are digging near safe zones.

Once the underground work is complete, the dirt is replaced by merely reversing the pressure. In the interim, the liquified material is stored in a tank on site. As an added bonus, since the material is already liquified, when it is replaced it “sets” very much like cement. There is often little evidence any digging ever took place. See more about vacuum digging.

Safety First

Imagine you are building on a site with pre-installed utilities. You have a backhoe in operation. This means digging at the site without sufficient information or worse, outdated information about what kinds of utility lines are present and where they are located. The backhoe blade strikes a gas line. There is a spark.

This is the kind of situation vacuum excavation, and potholing is meant to prevent. It is necessary to know the precise whereabouts of utility lines. It is also vital to understand the nature of those lines and what they might present in terms of hazards. Safety is always of utmost concern at a job site. The crews are at risk, and so is utility service to the surrounding neighborhoods and region.

Digging precisely and with the right tools and process allows you to know with specificity before you engage in large-scale digging or construction. Making the wrong decision or being in too big a hurry carries with it risks no construction crew should have to face.

The Right Team

It is in every stakeholder’s best interest to have experts in their field doing the work they were trained to do. This is why you need an experienced and knowledgeable team at your construction site to find the utility lines before your crew accidentally damages them. It is better and safer for everyone involved, and in the long run, it will save you time and money.

Vacuum Excavation: Achieve Less Surface Damage

Surveying a construction site is not only a necessity; it is an accepted and recommended practice for several reasons. Among the most urgent is the safety of the construction workers, along with the integrity of the structure and works built at the location. Also high on the priority list is keeping the grounds intact and free from unnecessary damage or navigational hazards.

Excavation is one of the most expensive things a construction company can do. Moving tons of earth from one place to the next is a non-trivial undertaking. What’s more, leaving deep holes, trenches, and other impassable obstacles behind can be a major safety hazard to say nothing of their effect on future building. The good news is there has been a better way to do things available to contractors for some time. It’s called vacuum excavation. If you haven’t taken advantage of it yet, you will be quite surprised at what it can help you accomplish.

What is Potholing?

Suppose you need to dig at a construction site to determine if there are any hidden underground hazards, pipes, electrical lines or other obstacles. What is the better option?

Breaking out the shovels and pickaxes and hoping you don’t break something as you descend into the darkness

Using a high-tech method that allows you to simply remove dirt and rocks and then replace them later

Potholing for Utilities is the second and best method. It is being used more and more by construction companies and contractors to help locate facilities that might otherwise be damaged if not located beforehand.

Time Savings

Key to any construction project is the ability to save time and expense, both for the contractor and the client. When it comes to safety and the regulatory requirements of checking before digging, anything that increases the efficiency of the process is going to be an obvious priority. This is one of the reasons vacuum excavation services has become so popular so quickly.

The equipment itself is self-contained and operates on the simple principle it is possible to remove mud with a sufficiently strong vacuum and then replace it by reversing the pressure. Since no blades or bits are hitting the ground or anything underneath it, the potential for damage is practically non-existent. Further, once the earth is replaced, the process of drying causes it to set very much like cement, leaving almost no evidence any digging.

Practical Efficiency

Since in some states digging near a marked safe zone is prohibited by regulation, air and hydro excavators have become the go-to tools. These processes are considered “non-destructive” and are therefore recommended to avoid expensive accidents, not to mention the possibility of interrupting local utilities like electricity or water service.

When the possibility of hitting a gas line is taken into consideration, what might once have been a good recommendation becomes a necessity. Vacuum excavation is the correct choice in most construction contracting, and it is a safe choice when it comes to preserving utilities and underground lines.

Potholing Utilities for Damage Prevention & Effective Subsurface Investigation

The practical considerations involved in starting or continuing a construction project without first ascertaining what obstacles might be hidden under the ground can be substantial. While there are technologies available to perform searches for utility lines, water or sewer pipes and other underground structures, there exists a quick, accurate and relatively inexpensive method for visually confirming the presence of underground construction obstacles. It is called utility potholing.

Preventing Damage

All non-trivial construction and the majority of building repair, expansion, or inspection activities involve some level of excavation. The foundation of any building must be inspected before any new construction can take place. Any land set aside for new work could be crisscrossed with all kinds of public facilities.

Without some method of avoiding those obstacles, a construction crew could not only do tremendous damage to the lines themselves but could put the surrounding neighborhoods and populations in danger by cutting off electricity or water. They could even put themselves in danger if they hit a gas line or an underground fuel storage tank.

Surgery for Construction Contractors

Vacuum excavation is similar to a medical technique called arthroscopy. In medicine, doctors often need to repair ligament or tendon damage in a joint. Instead of conventional surgery, however, they make a tiny incision and insert a camera and light so they can see inside the joint.

Vacuum excavation has the same objective. A construction crew needs to see beneath the ground so that they make a tiny incision using a non-destructive process. This method is called vacuum excavation and allows them to perform a visual inspection and avoid any possibility of damage. See more vacuum excavation contractors.

The Alternative

What happens if a backhoe hits a gas line? Most construction crews don’t want to imagine it, and for a good reason. Electrical lines, diesel engines, sparks, and natural gas leaks combine to produce unfortunate results.

The same goes for a water line or a sewage line. Interruption of a water utility can be catastrophic for public services like hospitals. Electricity outages can cost supermarkets incredible amounts of money in lost product. Sewage breaks can tie up traffic and create health hazards for days. The minuscule time and money savings of bypassing the potholing process and moving forward with a risky and potentially life-threatening construction project is never worth it.

While it is possible to approximate the location of utility lines using various technologies other than potholing, the truth is nothing beats first-hand visual inspection, and nothing beats the time savings of using a proven process with no drawbacks. Why guess when it is possible to know for certain? Why take a chance when a first-hand look answers all the questions?

Modern construction is impressive. The ability to see beneath the earth and avoid costly and dangerous obstacles is one of its greatest accomplishments. It is in every contractor and construction team’s best interests to take advantage of those technologies whenever possible.

How to Reduce Trenching and Excavation Safety Hazards

The work involved in exposing underground utilities can be intricate in nature. There is a lack of vision, due to the infrastructure being underneath the ground, meaning that accurately locating the target piping or cabling is difficult. This problem makes it incredibly important to gather as much intelligence as you can on the area in which you are working.

Finding underground schematics for the area is one of the first things that should be done when preparing to start work on a new site. The responsible contracting company that installed the infrastructure will have created detailing documentation for workers to use when performing repairs on the piping and cabling laid beneath the ground. You can use this information to speed along your utility potholing process. Read more about potholing construction.

Trenching for Repairs

Trenching is something that can be avoided by using vacuum excavation contractors. However, in some instances, it may be necessary to dig a trench to access the subsurface infrastructure. The proper definition of a trench, defined by the Occupational Safety & Health Administration, is a narrow excavation beneath the ground that is deeper than it is wide while being no wider than 15 feet.

It is crucial to have a competent person perform a survey of the area, aiming to find out the types of soil and rocks in the ground, as well as inspecting your protective systems and conducting regular site inspections. This person will be required by law to inspect trenches at the start of each shift, as well as following a rainstorm.

It is essential to decipher the type of ground materials you are working with, as this can affect the precautions you need to take before starting work. Some important factors that should be taken into account include the soil classification, water content of the soil, use of heavy digging equipment, depth of cut and other changes which can be caused by weather and climate. According to the Occupational Safety & Health Administration, or OSHA website, there is a range of safety precautions that need to be taken when trenching. The most common threat when trenching is the risk of collapse, which can result from the surrounding ground materials being too weak to hold up machinery and other items.

Generally, unless the excavation is performed in entirely solid rock, you will need to have a trench protection system in place. The first is called Sloping, which involves cutting the trench wall back at an inclined angle to ensure that debris does not fall into the trench. The second method is called Shoring and requires more work, such as the installation of support, items such as an aluminum hydraulic to prevent soil movement and cave-ins. The third and final method is Shielding, which protects workers by using trench boxes or other types of support that avoid soil cave-ins.

Overall, trenching and excavation are some of the most hazardous construction operations that you can undertake. This danger is why it is critical to take the necessary precautions to ensure the safety of workers on-site.

Expose Underground Utilities with Vacuum Excavation

Underground utilities are particularly susceptible to damage, especially when worked upon in more traditional ways such as manual digging and using a backhoe.

Manual Digging is the most labor-intensive method of exposing underground utilities, requiring significant worker numbers to accomplish the job. This kind of work can also take days to complete, requiring both the removal and replacement of soil, meaning that projects can fall behind schedule. Another significant risk encountered when manually digging is that hand tools can come into contact with electrical wiring beneath the surface, which can pose a significant threat to human life, causing either severe injury or even death. Due to these reasons, other modern methods have become more commonly used.

A backhoe requires the use of machinery in order to dig up the ground and expose buried underground utilities. This piece of machinery has a large bucket which digs into the ground, in much the same way as a hand shovel. Additionally, due to the larger size of these machines, this means that the job can be completed more quickly. The problem with this method, much like with hand digging, is the lack of vision that the machine operator has underground. This lack of visual information means that underground cabling can be damaged during the excavation process, incurring significant costs and project delays while repairs are made to the existing infrastructure.

These older methods of potholing utilities have been replaced by a quicker, more cost-effective method called Vacuum Excavation.

What is Vacuum Excavation?

As the name suggests, vacuum excavation involves the removal of ground materials through suction. This method of excavation can be done in two different ways.

The first type of vacuum excavator uses water; highly-pressurized water is used to dislodge and remove soil. A vacuum is then applied over the area to suck up and store debris. Water excavation can be useful in situations where the ground would otherwise be too hard to simply vacuum. The high-pressure water helps to increase the moisture of the soil and make it easier to break up. Water vacuum excavation is suitable as it is non-destructive and allows for more accurate excavation of underground utilities.

The second method is simply air vacuum excavation. This method is suited to areas with loose soil and ground materials, which are quickly drawn up through an intake nozzle into a dry debris container. From here, you can unearth the underground utilities that you need to work on without causing any damage, similarly to the water excavation process. Once the work has been completed, a driver will dump the dry soil back into the hole you’ve created.

Overall, both of these methods are hugely useful at increasing safety on the worksite. Hand Digging is labor and time intensive, but it is also dangerous as workers can come into contact with live electrical wiring. The same can occur when using a backhoe. This danger is why you will now commonly find a Vacuum Excavator being used to expose underground utilities.

Potholing Utilities for a Cost Efficient and Safer Excavation

Potholing for utilities is a method that construction site workers can use to obtain a wealth of visual information regarding piping and other subsurface construction. Utility potholing has increasing importance in the construction industry, as a method that can help to make excavation safer and more cost-effective to do.

In the past, it was commonplace for contractors to use a backhoe. This piece of equipment is highly recognizable to the general population as a typical piece of machinery you would find on a construction site. However, it does not have the precision or maneuverability of more modern excavation machinery, meaning it has the potential to cause immense damage to existing subsurface infrastructure.

Vacuum excavation is a process in which water is pushed through the earth creating a hole that allows the crew to visually confirm the location of the utility lines. As the earth is removed to create the hole, it goes into a special storage truck that can easily be removed from the construction site and dumped elsewhere.

Not only is potholing the most accurate way of learning the location of utility lines, but it is also time and cost-efficient. Keep reading to find out the many other benefits of using vacuum excavation on your construction site. Know more about pothole utilities.

Increased Safety using Vacuum Excavation

Nowadays, you are much more likely to find a vacuum excavator being used. These highly portable pieces of machinery use air to displace soil. Since the air and water are only vacuuming at low pressures, this means that other utilities in the ground will not be damaged, which makes vacuum excavation the preferred method compared to using a backhoe.

While vacuum excavation is an extremely safe process, there are still a number of precautions that should be taken to keep your crew and members of the public safe. Before utility potholing can take place, you should reach out to third parties who have knowledge of the construction site. They might be able to provide you with recent utility line maps or estimations for how deep the holes will need to be.

It is also always recommended that you hire an experienced team that specializes in vacuum excavation They will have the training and expertise necessary to do the job safely and efficiently. A professional team will also understand the importance of preliminary work such as using RADAR or digital technology to gather estimates for locations and depths.

By hiring specialists, you will minimize the risk of damage to the utility lines as well as the expensive excavation equipment. You will also save money by avoiding the possibility of a utility strike which can cause expensive repairs or fines if it affects the local community.

Vacuum excavation also has a wealth of other benefits compared to using a backhoe. When excavating, a backhoe will displace a considerably larger amount of soil compared to a vacuum excavator. A vacuum excavator simply stores the displaced soil inside the machinery, meaning there is no need for a dumping ground.

Increased cost efficiency using Vacuum Excavation

The next important benefit of using vacuum excavation, compared to backhoeing and manual labor, is the reduction in costs.

Manual digging is an outdated method of excavating that requires a significant number of man-hours to accomplish the same thing as backhoeing and vacuum excavation. In comparison, vacuum excavation would be much quicker while also causing much less disruption to the ground. Once work is complete, workmen would also have to refill the holes they had made, doubling the time taken.

Considering the amount of manpower required to excavate utility lines as well as the extended time frame to get the work done, relying on hand tools is a very costly option in the long run.

The cost implications for backhoeing are different from manual labor. This piece of machinery can be a great tool when displacing ground is clear of subsurface infrastructure. It can accomplish what multiple workmen would do in hours, in mere minutes. When used in an area containing subsurface infrastructure, the damage that can be caused by the metal bucket on a backhoe hitting existing piping and cabling could be disastrous. This would most likely result in the project being put on hold, whilst repairs to the infrastructure are completed by those who caused the damage. As you can see, the risks of using a backhoe are very real, meaning it is a good idea to consider using a vacuum excavator instead when potholing utilities. Know more potholing companies.

Summary

In summary, vacuum excavation is a new and improved method of potholing utilities.

A professional excavation team will understand the needs of your construction project and will also work diligently and efficiently. This means your crew and the land itself are kept protected throughout the excavation process.

The use of low-pressure water and air by this system means that existing subsurface infrastructure is less likely to get damaged, versus other methods such as backhoeing and manual digging. The cost savings and improvement to site safety can also be immense through this mitigation of risk. You can find out more information regarding vacuum excavation and potholing utilities by visiting Util-locate.com.

Author: admin