industry insights

Your Data: Optimized & Aggregated

SiteMap® Pro gives you what you need to manage your facility or campus’ subsurface infrastructure from anywhere by securing your aggregated, mapped & layered data – from pre-planning through O&M and beyond.

How many projects are you currently managing across your facility or campus?

How well are you and your team communicating on priorities and workflow? How accurate is the as-built information they have to work with?

What if there was a way to manage it all – every utility installation, every renovation, every repair – from one place?

Thanks to SiteMap® Pro, you can.

Utility lines illustrated over an aerial shot of a campus.
SiteMap® consolidates all your vital infrastructure information in one secure, yet easily accessible platform so you can plan, design, dig, and ultimately build better.

SiteMap® Pro (patent pending) puts you in the driver’s seat for all work occurring on your facility or campus. It gives you what you need to manage your infrastructure from anywhere by securing your aggregated, mapped & layered data – from pre-planning through O&M and beyond.

With SiteMap® Pro, you have control over your entire facility or campus, and all its projects. You receive administrative access for as many as five people to utilize the data collected by GPRS, aggregated to provide constant updates on each of your projects as they occur.

No more searching in multiple locations for information that was out-of-date before you even started looking.

No more inaccurate as-builts that should really be called “as-intendeds” because they don’t correctly reflect what’s underground.

No more feeling like you’re out of the loop because your contractors, subcontractors, and team members aren’t sharing their information with you – or worse, they’re sharing bad data gathered from sources you can’t trust.

Facilities come in all shapes and sizes, but no matter what type of facility you’re responsible for, you need data you can trust to prevent subsurface damage and other mistakes that could decimate your budget and schedule, and even endanger those who work at or visit your site.

SiteMap® Pro is the easily accessible, yet secure home for the data GPRS collects on your site. That’s 99.8%+ accurate utility locating and concrete scanning data, millimeter-accurate 3D laser scans, NASSCO-certified video pipe inspections, SIM-certified leak detections, and our unique ability to map and model all this information to meet your needs. It’s all there, secured in one place for you to review, annotate, and share with whomever needs it, whenever they need it.

Screenshot of the SiteMap MapViewer
SiteMap® lets you see all the accurate infrastructure data collected by GPRS in one place where you can turn off layers you don't want to see.

SiteMap® Pro is a single source of truth for the accurate utility locating, concrete scanning, 3D laser scanning, video pipe inspection, leak detection, and mapping & modeling data you’ve come to expect from GPRS’ SIM and NASSCO-certified Project Managers.  

You can access SiteMap® Pro from your computer or mobile device, meaning that your data travels with you 24/7 and is always there when you need it.

You decide the number of users, their level of access, and how your data is used.  

You control everything that happens on your property and ensure that all parties are working from the same accurate data.  

You see everything that happens, when it happens, with no surprises.

Inconsistent & siloed data, confusing project communications, and incomplete as-builts & historical records are hurting your bottom line, your schedule, and in the worst cases, your people.  

Put an end to it, and gather, secure & share your aggregated information with a single source of truth.

With SiteMap® Pro, you can plan, design, manage, dig, and ultimately build better. Click below to learn more and sign up for a personal SiteMap® demo today!

Frequently Asked Questions

What are the Benefits of Underground Utility Mapping?

Having an updated and accurate map of your subsurface infrastructure reduces accidents, budget overruns, change orders, and project downtime caused by dangerous and costly subsurface damage.

How does SiteMap® assist with Utility Mapping?

SiteMap®, powered by GPRS, is the industry-leading infrastructure management program. It is a single source of truth, housing the 99.8%+ accurate utility locating, concrete scanning, video pipe inspection, leak detection, and 3D laser scanning data our Project Managers collect on your job site. And the best part is you get a complimentary SiteMap® Personal Subscription when GPRS performs a utility locate for you.

Click here to learn more.

Does SiteMap® Work with my Existing GIS Platform?

SiteMap® allows for exporting of data to SHP, GeoJSON, GeoPackage, and DXF directly from any user’s account that either owns or has a job shared to their account. All these file formats can be imported and utilized by other GIS packages if manually imported by the user. More information can be found at SiteMap.com.

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About GPRS
Mapping & Modeling

GPRS Conducts Sewer Scope Inspection at San Francisco Hospital

When a historic hospital in California needed to inspect its wastewater system, GPRS deployed state-of-the-art sewer scope services to get the job done right.

When a historic hospital in California needed to understand the condition of its wastewater system, GPRS deployed state-of-the-art sewer scope services to get the job done right.

GPRS Project Manager Emily Lamberson completed the video pipe inspection (CCTV) at Laguna Honda Hospital and Rehabilitation Center in San Francisco, California.

“It was a routine inspection,” Lamberson said. “They wanted to know the condition of the lines.”

A guardrail with cable running over it into a manhole.
It's not always easy to access sewer systems for inspection and mapping, but GPRS Project Managers have the equipment, the training, and the experience to get the job done right for you.

GPRS Video Pipe Inspection Project Managers utilize an arsenal of remote-controlled sewer inspection rovers as well as push-fed sewer scopes, all typically deployed from our specially equipped video pipe inspection vehicles.

The biggest challenge to inspecting the hospital’s sewer lines, however, was that the manhole was located a significant distance from the parking lot or any roadways, and behind a guardrail which prevented Lamberson from pulling her rig close to the access point.

Fortunately, the Envirosight Rovver X crawler GPRS employs during sewer inspections is supported by an HD RAX300 Automatic Cable Reel with 1000 feet of cable to allow for access to sewer systems from difficult-to-reach areas.

“The troubleshooting for the set-up was interesting,” Lamberson said. “I’m not sure if I could have done that with a camera system other than the Envirosight. The customer was impressed with our efforts.”

A hospital lit up at night.
Laguna Honda Hospital in San Francisco, California, is a 62-acre medical facility dedicated to providing therapeutic care for seniors and adults with disabilities.

A Storied Past

Founded in 1866, Laguna Honda Hospital opened as an almshouse for the pioneers who flocked to San Francisco during the Gold Rush.

A 24-bed hospital replaced the almshouse just two years later in response to the smallpox epidemic. The hospital closed and was replaced with an asylum by 1870, only to reopen as a hospital in 1906 to care for thousands of San Franciscans displaced by the infamous earthquake and fire that occurred that year.

Laguna Honda became accredited as a hospital in 1963 and the 62-acre campus continued to undergo renovations and expansions over the ensuing decades. Today, the facility is owned and operated by the San Francisco Department of Public Health and focused on providing therapeutic care for seniors and adults with disabilities.

All the change the hospital experienced over the years means that its subsurface infrastructure is a complex web of both existing and abandoned utilities. Hospital leaders called GPRS to inspect the facility’s modern wastewater system and ensure it was operating at peak efficiency.

A GPRS Project Manager prepares a sewer inspection rover.
GPRS video pipe inspection services inspect and map your wastewater infrastructure so you can avoid costly and potentially dangerous defects such as cross bores, and inflow and infiltration (I/I).

Video Pipe Inspection Services Explained

Underground sewer inspection and mapping services play a vital role in evaluating sewer lines and other wastewater infrastructure for defects such as inflow/infiltration (I/I), clogs, cross bores, and more.

GPRS video pipe inspection services are conducted by our NASSCO-certified Project Managers. NASSCO stands for the National Association of Sewer Service Companies, a not-for-profit organization that provides industry-leading training on the most advanced, non-destructive methods to detect and report subsurface anomalies within sewer lines.

Our Project Managers provide WinCan reporting of all defects found within sewer systems, which allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. We not only inspect the interior condition of sewer pipes, laterals and manholes; we also geolocate our findings so you can pinpoint where you need to dig to complete repairs.

Additionally, the GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

Having a sewer inspection company investigate and map your wastewater infrastructure is the best way to mitigate the risks of cross bores and other defects such as inflow/infiltration (I/I).

Cross bores are incidental intersections of buried utilities, which typically occur when a new utility is installed using horizontal directional drilling and it accidentally pierces an existing line. Cross bores can lead to service interruptions, gas leaks, or other, even more dangerous consequences.

Inflow/infiltration is the process of groundwater or water from sources other than domestic wastewater entering sanitary sewers. This clean water dilutes the wastewater, which stresses the capacity of treatment facilities as more energy is required to treat this excess water.

Routine sewer inspections such as GPRS’ bi-annual video pipe inspections identify problems such as cross bores and I/I before they can cause headaches.

As evidenced at Laguna Honda Hospital, GPRS Project Managers are equipped and trained to tackle whatever challenges they face in the field and tailor our services to meet your project’s specific needs.

We know that 70,000 sanitary sewer overflows occur annually in the United States, and over 50% of those overflows are due to inflow/infiltration. We know that there are an estimated one million undetected cross bores riddling the United States’ buried infrastructure.

We’re dedicated to keeping your wastewater system from adding to these statistics, and ensuring you avoid service interruptions and other costly and potentially dangerous consequences.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

What size sewer pipes can GPRS inspect?

Our Project Managers can inspect pipes from 2” in diameter and up.

Can you locate and map sewer lines in addition to evaluating their integrity?

Yes! Our SIM and NASSCO-certified Project Managers use VPI technology equipped with sondes, which are instrument probes that allow them to ascertain the location of underground utilities from an inaccessible location. Using electromagnetic (EM) locators, we map sewer systems at the same time we’re evaluating them for defects.

What deliverables does GPRS offer when conducting a VPI?

GPRS is proud to offer WinCan reporting to our video pipe inspection clients. Maintaining sewers starts with understanding sewer condition, and WinCan allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. GPRS Project Managers not only inspect the interior condition of sewer pipes, laterals and manholes; they can also provide a map of their location. The GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

Does GPRS offer lateral launch services?

Yes, we offer lateral launch capabilities as part of our standard video pipe inspection services.

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About GPRS

U.S. Sees Increase in EV Battery Plant Construction

As the United States continues to embrace electric vehicles, production of their components requires construction of new manufacturing facilities. And as construction of these facilities begins, proper utility locating and mapping, and 3D laser scanning services can ensure the success of these projects.

As the United States continues to embrace electric vehicles, production of their components requires construction of new manufacturing facilities. And as construction of these facilities begins, proper utility locating and mapping, and 3D laser scanning services can ensure the success of these projects.

Engineering News-Record reported recently on the groundbreaking for Japanese EV battery maker Envision AESC’s new, 3-million-sq-ft plant in Kentucky. The $2 billion project represents the second largest investment in state history. It will be entirely powered by renewable energy, including on-site solar and additional power purchased from the Tennessee Valley Authority.

A group of people pose for a groundbreaking photo.
(Photo courtesy of Engineering News-Record) A photo taken during the recent groundbreaking of Japanese EV battery maker Envision AESC's new, 3-million-sq-ft plant in Kentucky.

Envision’s project is just the latest EV battery plant being constructed in the Bluegrass State. Southfield, Michigan-based Barton Malow and Lexington, Kentucky-based Gray Construction are building two EV battery plants as part of the Ford-SK project.

Kentucky Gov. Andy Beshear said during the groundbreaking for the Envision project that these projects “cement Kentucky as the electric vehicle battery production capital of the United States.”

These are just two of a slew of EV battery plant projects currently ongoing across the United States, which are designed to address the expected growth in demand for EVs.

ENR cited a study by consulting firm McKinsey & Company, which projected in 2022 that demand for battery cells will grow, on average, by more than 20% per year until 2030, reaching at least $360 billion globally.

The charging infrastructure to support the expected increase in EV popularity is currently being construction nationwide, with the help of federal and state funding.

Three GPRS Project Managers hold utility locating equipment.
GPRS is proud to offer a suite of infrastructure visualization services designed to keep you on time, on budget, and safe.

How GPRS Ensures Success of EV Projects

GPRS applies our suite of infrastructure visualization services to ensure the success of projects of all shapes and sizes.

By providing accurate, reliable utility locating and mapping, we help you avoid costly and potentially dangerous subsurface damage during excavation.

Our SIM-certified Project Managers use ground penetrating radar (GPR) and electromagnetic (EM) locating to find everything buried beneath your jobsite.

GPR scanners emit radio waves which interact with any objects buried underground. Those interactions between the radio waves and the buried objects are captured by the scanner and displayed in a reading as hyperbolas varying in size and shape depending on the type of object located. Qualified utility locating technicians can interpret these readings to provide you with a comprehensive understanding of the built world beneath your site.

EM locators compliment the findings collected by GPR by detecting the electromagnetic signals radiating from metallic pipes and cables.

These signals can be created by the locator’s transmitter applying current to a known utility, or from current flow in a live electrical cable. If a utility is buried too deep for GPR to detect, or if the soil is not conducive to GPR scanning, our Project Managers will deploy EM locators to compensate for these limitations.

When it’s time for walls to go up, GPRS 3D laser scanning services provide you with millimeter-accurate data for design, construction, and maintenance of your facility or campus. Our elite Mapping & Modeling team will package your data to suit your needs – from raw point clouds to a fully rendered 3D BIM model – to ensure you have all the information you need to get the job done right, delivered in formats that make them instantly understandable and easy to communicate.

All Your Data in One Place

The best information in the world isn’t worth anything if you can’t access it easily when it’s needed.

That’s why GPRS created SiteMap® (patent pending), our revolutionary cloud-based facility management solution where you can store, access, and securely share all your data anytime, anywhere, with just the press of a button.

When a GPRS Project Manager performs a utility locate, precision concrete scanning & imaging, 3D laser scanning, video pipe inspection, or leak detection on your site, that data is instantly uploaded into SiteMap® for you to see and use. And you receive a complimentary SiteMap® subscription when we perform a utility locate on your property.

SiteMap® is an infrastructure mapping solution designed to help you plan better, design better, dig better, and ultimately, build better.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

How accurate is ground penetrating radar?

While accuracy depends on external factors such as ground and soil conditions, GPRS’ SIM-certified Project Managers are specially trained to ensure we can obtain the best results possible in each situation. Through our experience, we’ve found that when using a GPR concrete scanning antenna, accuracy is typically +/- ¼” to the center of the object and +/- ½” to the actual depth. When conducting utility locating using GPR, the accuracy is +/- 6” to the center and +/- 10% to the actual depth.

To compensate for GPR’s limitations, GPRS Project Managers deploy other technologies such as electromagnetic (EM) locating.

What is 3D laser scanning?

3D laser scanners use LiDAR (light detection and ranging) to measure and record precise locations and distances, ultimately producing a point cloud file. The technology enables you to produce highly accurate digital measurements and images quickly and easily for use in construction and engineering projects. 3D laser scanning is a revolutionary tool to document existing conditions. It is invaluable in design, prefabrication, asset management, and facility modifications.

Can GPRS work with my schedule to avoid disrupting ongoing operations?

Yes! GPRS tailors our services to meet your needs, and that includes working nights and weekends to help limit disruptions to normal business operations. The equipment that GPRS uses is battery operated, emits less radiation than a cell phone, and less noise than a household vacuum cleaner, allowing us to work discreetly.

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Ground Penetrating Radar

How RAISE Grant Funding Continues Boom In Infrastructure Spending

The recent influx of federal infrastructure dollars continues with the White House’s announcement that $1.5 billion in grant funding will be made available for 2024 through the Rebuilding American Infrastructure with Sustainability and Equity (RAISE) discretionary grant program.

The recent influx of federal infrastructure dollars continues with the White House’s announcement that $1.5 billion in grant funding will be made available for 2024 through the Rebuilding American Infrastructure with Sustainability and Equity (RAISE) discretionary grant program.

This program is designed to help fund projects with significant local or regional impact, specifically those that may be harder to support through other U.S. Department of Transportation grant programs, according to a press release on the U.S. DOT's website.

Half of the funding will go to projects in rural areas, while the other half will go to projects in urban areas. At least $15 million in funding is guaranteed to go towards projects located in Areas of Persistent Poverty or Historically Disadvantaged Communities, and projects located in these areas will be eligible for up to 100 percent federal cost share, as directed by Congress in the Bipartisan Infrastructure Law.

Construction equipment moves across dirt with city in background.
The past few years have witnessed a boom in U.S. infrastructure projects.

“Across the country, I have seen firsthand how projects funded by our RAISE programs are helping communities realize long-held dreams and well-planned visions for better infrastructure,” said U.S. Transportation Secretary Pete Buttigieg. “…We are delivering safer, cleaner infrastructure to communities of every size and in every part of the country, creating a new generation of jobs and helping families build generational wealth in the process.”

In 2023, RAISE funding supported 162 projects in all 50 states, the District of Columbia, Puerto Rico, and the Northern Mariana Islands.

To qualify for RAISE funding, applicants must undergo a rigorous review process that considers their project based on the criteria of safety, environmental sustainability, quality of life, mobility and community connectivity, economic competitiveness and opportunity including tourism, state of good repair, partnership and collaboration, and innovation.

The Department of Transportation encourages applicants to consider how their projects can address climate change, ensure racial equity, and remove barriers to opportunity.

This funding is just the latest financial support offered by the federal government to infrastructure projects nationwide. The Federal Infrastructure Investment and Jobs Act, signed into law in 2021, kickstarted a boom in new infrastructure construction projects that is expected to continue for several years.

America’s infrastructure scored a C- in the American Society of Civil Engineers’ most recent Infrastructure Report Card. Citing the fact that a water main break occurs every two minutes, and 43% of the nation’s public roadways are in poor or mediocre condition, the ASCE emphasized what many already knew: America’s infrastructure needs immediate and extensive attention.

Starting Off On The Right Note

As more infrastructure dollars become available and the number of new projects increases across the U.S., it’s essential that proper subsurface damage prevention practices are in place to ensure the success of these projects.

That was one of the main takeaways from the Common Ground Alliance’s recently released 2022 DIRT Report, an annual assessment of subsurface damage and near-miss events across North America.

The report notes that there were 213,792 unique reported subsurface damage events in 2022, continuing a three-year upward trend in damages that the CGA says indicates larger problems in the way utility locating and mapping occur on the average jobsite.

In the U.S. alone, unique damages from consistent reporting entities has risen from 146,038 in 2020, to 153,886 in 2021, to 163,726 in 2022.

“With an influx of additional excavation forthcoming because of state and federal infrastructure spending, it is imperative that we address the timelines and accuracy of locating,” the report reads.

Three Project Managers hold utility locating and mapping equipment.
GPRS offers a suite of infrastructure visualization services designed to ensure the success of your next project.

How GPRS Services Support Infrastructure Projects

GPRS offers a suite of infrastructure visualization services designed to ensure your projects can be completed on time, on budget, and safe.

Using state-of-the-art technology like ground penetrating radar, electromagnetic locating, 3D laser scanners, and remote-controlled sewer scope inspection rovers, our SIM and NASSCO-certified Project Managers Intelligently Visualize The Built World® both above and below ground so you can cut, core, dig, plan, and design with confidence.

GPRS has achieved and maintained a 99.8%+ accuracy rate on the over 500,000 utility locating, and concrete scanning jobs completed since our founding in 2001. That’s an unparalleled ability to keep you safe when breaking ground, and we’re constantly innovating in our quest to achieve 100% subsurface damage prevention.

The data our Project Managers collect on your site can help you assess not just your project’s safety, but also its environmental sustainability, community impact, and more. And the best part is that this data is always at your fingertips thanks to SiteMap®, GPRS’ revolutionary cloud-based facility management platform.

SiteMap® allows you to review, annotate, and securely share your data from anywhere, anytime, with just the press of a button. Our unique ability to layer your data within SiteMap® means you and your team can see only what you need, exactly when you need it, meaning you can plan, design, communicate, collaborate, and ultimately build better.

When you hire GPRS to complete a utility locate, you receive a complimentary SiteMap® Personal subscription to access and share the data we collected. By controlling your data, you eliminate the chance of subsurface damage derailing your project.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep you on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

Does GPRS Perform SUE Work?

Subsurface Utility Engineering (SUE) reduces the risk and improves the accuracy of subsurface utility readings. GPRS provides private utility locating services that support SUE, but we do not currently provide a fully comprehensive, in-house SUE service.

What are the Benefits of Underground Utility Mapping?

Having an updated and accurate map of your subsurface infrastructure reduces accidents, budget overruns, change orders, and project downtime caused by dangerous and costly subsurface damage.

How does SiteMap® assist with Utility Mapping?

SiteMap®, powered by GPRS, is the industry-leading infrastructure management program. It is a single source of truth, housing the 99.8%+ accurate utility locating, concrete scanning, video pipe inspection, leak detection, and 3D laser scanning data our Project Managers collect on your job site. And the best part is you get a complimentary SiteMap® Personal Subscription when GPRS performs a utility locate for you.

Click here to learn more.

Does SiteMap® Work with my Existing GIS Platform?

SiteMap® allows for exporting of data to SHP, GeoJSON, GeoPackage, and DXF directly from any user’s account that either owns or has a job shared to their account. All these file formats can be imported and utilized by other GIS packages if manually imported by the user. More information can be found at SiteMap.com.

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Utility Locating
3D Laser Scanning
About GPRS
Concrete Scanning
Mapping & Modeling

How To Stop Subsurface Damage From Derailing Your Next Project

Subsurface damage continues to plague the construction industry. Solutions exist to mitigate these incidents and reduce the project delays, budget overruns, and injuries they cause.

Subsurface damage continues to plague the construction industry, however, solutions exist to mitigate these incidents and the consequent project delays, budget overruns, and injuries they cause.

The Common Ground Alliance noted a three-year upward trend in subsurface damage in its 2022 DIRT Report. According to the CGA’s data, reported damages rose from 146,038 in 2020 to 153,886 in 2021, then to 163,726 in 2022.

There’s been a 12.35% increase in damages per unit of construction spending over the same span, rising from 0.079 in 2020 to 0.091 in 2022.

Courtesy of the Common Ground Alliance's 2022 DIRT Report

“A regression analysis of consistent 2020-2022 datasets shows damages are at best flat, but more likely increasing when accounting for economic factors,” the CGA wrote. “...Reversing these trajectories is imperative to reach the 50-in-5 industry challenge.”

The CGA’s ’50-in-5’ challenge is a call to action for damage prevention stakeholders to reduce subsurface damages by 50% over the next 5 years.

The top six root causes driving nearly 76% of all reported damages have remained consistent year-over-year. These include “No notification made to 811 Center,” “Facility not marked due to locator error,” “Excavator failed to maintain clearance after verifying marks,” “Marked inaccurately due to locator error,” “Improper excavation practice not listed elsewhere,” and “Excavator dug prior to verifying marks by potholing.”

Courtesy of the Common Ground Alliance's 2022 DIRT Report

“No notification made to 811 Center” represents 24.81% (35,860) of the reported damages in 2022. 811 has been the national call-before-you dig number since the One Call system was signed into law in 2002, requiring excavators and contractors to contact their state’s 811 system before breaking ground to obtain the approximate location of buried public utilities running under their jobsites.

“Without contacting 811, the damage prevention process fails from the start,” the CGA wrote.

Subsurface damage can derail a project’s schedule, decimate a company’s budget, and endanger the lives of workers and others on or near a jobsite.

The average cost to repair the damage caused by a single utility strike is $56,000. And the average time for the repair to be completed is 2-3 months.

To address the root causes of subsurface damage, the CGA recommends that facility owners and other project clients incentivize through contractual language the consistent and effective use of 811. They also urge improved locating processes such as electronic white lining to enhance utility locating, and GIS-based utility mapping to improve communication between project stakeholders.

“Now is the time for the damage prevention industry to take decisive, bold action by embracing innovation, capitalizing on technological advancements and working together to reimagine a damage prevention process that works for all stakeholders,” wrote Magruder Lyle.

GPRS utility locating and mapping services are fully aligned with the CGA’s vision for reducing subsurface damages. Through our adherence to the industry-leading Subsurface Investigation Methodology (SIM), and our revolutionary SiteMap® facility and infrastructure management platform, we Intelligently Visualize The Built World® to keep your projects on time, your budget intact, and your people safe.

Three GPRS Project Managers conduct utility locating services.
GPRS helps you avoid subsurface damage by showing you what's buried beneath your jobsite.

How GPRS Services Reduce Subsurface Damage

The best way to reduce subsurface damage is to know what's underground before you dig.

While calling 811 should always be your first step before excavating, it’s important to remember that 811 contractors only locate public utilities. Approximately 60% of all buried utilities are private, which is why it’s imperative that you hire a professional utility locating company in addition to calling 811 to fully understand the infrastructure under your jobsite.

GPRS Project Managers have achieved and maintain a 99.8%+ accuracy rate on over 500,000 concrete scanning and utility locating jobs completed since our founding in 2001.

This unparalleled level of accuracy in our utility locating services is underpinned by our commitment to SIM.

The SIM standard specifies that a professional utility locating contractor must utilize multiple locating technologies – such as ground penetrating radar (GPR) and electromagnetic (EM) locating – to create redundancy and repeatability in their results.

Ground penetrating radar is a non-destructive imaging technology used to see within concrete or underground. A GPR scanner emits radio waves that interact with any buried items they encounter. Those interactions are picked up by the GPR scanner and displayed on a readout as a series of hyperbolas that vary in size and shape depending on the size and location of the object detected.

Highly trained utility locating specialists like our Project Managers can interpret this data to tell you what was located, and precisely where those objects are so you can avoid them during excavation.

To complement and verify our GPR findings, GPRS Project Managers also employ electromagnetic (EM) locators. These devices pick up either the passive electromagnetic signals that emanate from active utilities, or signals that can be applied to known utilities using a transmitter.

By using GPR and EM locating in concert, GPRS adheres to the SIM standard for redundancy and repeatability in our results.

All GPRS Project Managers must become SIM-certified to work in the field, which means completing 320 hours of field training and 80 hours of classroom training. Through this instruction regimen, they encounter real-world scenarios that prepare these professionals for anything they may encounter in the field.

We’re so dedicated to providing industry-leading training to our Project Managers that we built a state-of-the-art training facility complete with a 3000-square-foot post-tensioned concrete slab riddled with everything from conduit to a simulated elevator shaft. This allows our Project Managers to hone their craft in a controlled environment so that, by the time they’re on your jobsite, they’re ready to provide you with fast, actionable, accurate data about your infrastructure.

Mapping Your Data

SiteMap® (patent pending) could have been purpose-built to address the CGA’s desire for an innovative, GIS-based facility & infrastructure mapping solution.

It’s a single source of truth for all the data GPRS collects on your jobsite: the 99.8%+ accurate utility locates and concrete scans, millimeter-accurate 3D laser scans, NASSCO and SIM-certified video pipe inspections, and SIM-certified leak detections.

Most of this data is instantly uploaded into SiteMap® as soon as a GPRS Project Manager completes their work. And the best part is you can access and securely share this information with anyone you need, from your mobile device or computer, whenever you need to do so.

You receive a complimentary SiteMap® Personal subscription whenever GPRS completes a utility locate on your site.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep you on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

Does GPRS offer same day private utility locating?

Yes, our professional Project Managers are a rapid response team, ready to provide emergency, same-day private utility locating service calls on your jobsite.

Will I need to mark out the utilities GPRS locates?

No, GPRS will locate and mark all utilities for you. We have a variety of tools and markers we can use to highlight the locations of utilities, underground storage tanks, and whatever else may be hiding beneath your jobsite.

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GPRS Gives Customers Multi-million Dollar Software Platform

You can choose any site GPRS has visualized for you and drill down into your layered utility maps, real-time photos of your concrete mark-outs, and data provided by any other applicable GPRS services. In most cases your utility data is available in as little as five minutes.

A Sitemap® Personal Subscription Is Available At Zero Cost To GPRS Customers

Did you know that GPRS has created a first-of-its-kind utility and infrastructure data visualization platform, and we’re giving it away to our customers?

It is true. If you are an existing GPRS customer, you can now access your interactive, layered utility maps, concrete imaging data, NASSCO-certified video pipe inspection reports, 3D point clouds, maps & models, and more inside one secure, easy-to-use, and shareable platform. It’s called SiteMap® (patent pending) because just like GPRS, it visualizes and delivers your above and below ground infrastructure to let you Intelligently Visualize The Built World® to keep your projects on time, on budget, and safe.

SiteMap® redefines collaboration for your project, your facility, your campus, or your distributed assets throughout the United States. Because you can access SiteMap® from anywhere, 24/7, via your computer or mobile device.

How Comprehensive Data Control Helps Mitigate Risk On Your Jobsite

SiteMap® is designed to give you complete data control because when you control your data, you can control damage. SiteMap® can help you avoid

  • Utility strikes
  • Change orders
  • Reworks
  • Delays
  • Cost overruns
  • Injuries

Because it creates a single source of truth for your project and your team, and lets you decide what data you share, who you share it with, and for how long, to streamline communications, eliminate information bottlenecks, and keep everyone on the same page…

Whether you’re managing one project or an expansive distributed portfolio.

How Does Sitemap® Work?

The most important feature of the SiteMap® platform is that it is simple to use. The user interface is built to be intuitive and to get you the information you need as quickly and painlessly as possible.

You can access your job information from the Map Viewer, where you can choose any site GPRS has visualized for you and drill down into your layered utility maps, real-time photos of your concrete mark-outs, and data provided by any other applicable GPRS services.

In most cases your utility data is available in as little as five minutes because that’s how committed we are to making sure you have comprehensive, accurate data and complete data control.

When you access your data in SiteMap®, your utility maps are laid over your site’s satellite or drone imagery, giving you a realistic visualization of what’s under your roads, buildings, and facilities.

SiteMap Screen Shots of worksite, showing different layers displaying.
SiteMap® allows you to toggle your various utility layers on and off to give a micro-level snapshot of your utility map to anyone who needs it.

Plus, it’s color-coded just like your physical mark-outs on site, and digitally layered, so you can toggle layers on or off at will to see and share only the data that’s needed to do the job instead of expecting subcontractors and tradespeople to wade through the complex schematics of a blueprint.  

You can also choose to share VPI reports, leak information, 3D walkthroughs, BIM models, and more, all from one secure and simple-to-use platform.

What Are The Various SiteMap® Subscription Levels And How Do You Access Your Complimentary Account?

There are four distinct subscription levels for SiteMap®. As an existing GPRS customer, you automatically receive a complimentary SiteMap® Personal subscription to view, access, and share your secure jobsite data.

To access your complimentary SiteMap® Personal account, you just need to follow the steps below:

  1. Visit our website at sitemap.com
  2. Select the LOGIN button
  3. Set up your account with your email address & password and access your data.

If your email address is associated with any GPRS data in SiteMap®, your jobs will populate in the Map Viewer and you can access them immediately.

SiteMap Displaying the Map Viewer
You can access any of your GPRS jobs from the Map Viewer.

If you encounter any issues with accessing SiteMap® or your jobsite data, you can contact your SiteMap® Support Team directly and they’ll walk you through it. We also provide helpful video explainers to answer most of your questions.

The other subscription levels available are SiteMap® Project, SiteMap® Pro, and SiteMap® Team.

SiteMap All Solutions

Each tier provides distinct, customizable tools designed to meet your specific workflow requirements and organizational needs. You can learn more about these subscriptions by scheduling a personalized demonstration of SiteMap®, here.

What Is The Quality Of Data In Sitemap®?

SiteMap® is populated with the 99.8%+ accurate utility locating and concrete scanning data, millimeter-accurate 3D laser scans, drawings, maps, and models, 3D photogrammetry, leak detection & NASSCO-certified interactive video pipe inspection reporting you have come to expect from GPRS, which is what sets it apart from other GIS platforms.

As Built Vs As Intended Drawings Graphic
Record and as built drawings are rarely accurate, if they exist at all. SiteMap® can provide updated above and below ground data for your project.

GIS tools are only as good as the existing as built data you put into them. And as you know, most record drawings and as builts are outdated, inaccurate, or non-existent, especially when it comes to your utilities and underground infrastructure. At best, your paper plans are “as intended” rather than as built, and that inaccurate data is the cause of the vast majority of jobsite damages and put your team at risk.

What Is The GPRS Difference?

SiteMap® relies on GPRS’ expert “boots on the ground” – our 500 Project Managers who are stationed nationwide – to provide rapid response service, usually within 24-48 hours, no matter where you need us.

Every GPRS Project Manager adheres to the most rigorous non-destructive testing and locating standards in the industry thanks to our use of Subsurface Investigation Methodology, or SIM.

To become SIM Level 101-certified, a Project Manager must complete a minimum of 80 hours of classroom training and 320 hours of mentored field training. Every GPRS Project Manager is certified at SIM 101 or higher, creating an elite strike force of infrastructure visualization experts. So, whether you are in Anchorage, Alaska or Miami, Florida – or anywhere in between – you can rest assured that there’s a SIM-certified utility, concrete, 3D laser, VPI, and leak detection professional near you, and that the data collected in SiteMap® meets our rigorous quality standards.    

GPRS Helps You Intelligently Visualize The Built World®

GPRS has spent the last several years and millions of dollars developing SiteMap® to provide our customers with a cloud-based software platform that includes everything you love about GIS systems, with none of the learning curve or stress, plus GPRS’ outstanding infrastructure and 99.8%+ accurate utility mapping capabilities.

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Mapping & Modeling
About GPRS

Turner Construction Completes Building Fit-Out with 3D BIM Model

Turner Construction hired GPRS to 3D laser scan the building core and shell of a Pennsylvania Hospital and develop a 3D BIM model of the space. A BIM model helped Turner Construction complete the design, minimize clashes, and coordinate trade work.

Commercial fit-outs can be daunting – contractors require precise planning and coordination to ensure the structural layout and systems meet the design requirements of the tenant.

To create a comprehensive plan for building fit-out, construction and design teams can benefit from existing shell and core as-built site data in 2D drawings and 3D models to minimize rework and clashes, and coordinate trades.

Turner Construction was completing a building fit-out of 14,500 sq. ft. of existing core and shell space for a hospital in Philadelphia, Pennsylvania. The project scope included the construction of five new labs, one electrophysiology (EP) lab, one neuro lab, two cath labs, a flex lab, 11 pre/post bays, support space, a waiting room, equipment storage, and locker rooms.

The hospital had specific design requirements to build out the space, core and shell construction allowed them to customize the space to meet their healthcare needs. Turner Construction was hired to complete the building fit-out to the construction specs.

Core and shell construction refers to the first phase of a commercial project where the foundation and structural skeleton, or core, and the exterior building envelope, or shell, are constructed without adding interior walls, ceilings, MEP systems, lighting, furnishings, and other interior building elements.

The Virtual Design and Construction (VDC) engineer requested a 3D BIM model for design planning, project coordination, and construction scheduling. With a BIM model, the VDC engineer can create a comprehensive plan for building fit-out and MEP coordination.  

Turner Construction hired GPRS to 3D laser scan the building core and shell and deliver point cloud data, 2D drawings, and a 3D BIM model of the space.

“Creating a 3D BIM model of your project site can be the single most powerful pre-construction activity for project success,” said Michelle Colella, GPRS Mapping and Modeling Manager.

Building Fit-Out for Hospital
To create a comprehensive plan for building fit-out, construction and design teams can benefit from existing shell and core as-built site data in 2D drawings and 3D models to minimize rework and clashes, and coordinate trades.

Nemours Children’s Health Infrastructure Expansion

For Nemours Children’s Health, the lab spaces featured high-tech equipment and workstations with meticulous attention to detail during construction. The pre/post bays required essential connections for power, emergency measures, data, CO2, air, and specialized gases. Support rooms were equipped with regular and emergency power, with emergency power connected to a rooftop generator for uninterrupted operations.

Hospital infrastructure expansion requires significant planning to adhere to strict regulations, install advanced equipment and technology, and ensure the safety of patients.  

Design-Build with 3D BIM Models

3D BIM models deliver a single source of data for design and construction teams who see the project through from start to finish — from engineering through pre-construction planning to estimation, schematics, subcontracting, and construction.

A Design-Build Institute of America Study from 2018 revealed how much time and money design-build saves when compared to other delivery methods. The benefits of design-build are impressive and tangible – compared with traditional contracting methods, design-build is 33% faster and costs 6% less. Design-build projects are delivered faster and with fewer change orders that lead to unforeseen costs and schedule delays.

To create a 3D BIM model of the building’s core and shell, site data must be captured with 3D laser scan technology. 3D laser scanning captures the spatial geometry (x,y,z coordinates) of a site in the form of a point cloud. Point cloud data is imported into a CAD/BIM software, such as Autodesk, where the data is turned into 2D drawings or 3D models at any level of detail. At GPRS, highly trained Project Managers ensure successful data capture and registration, and the Mapping and Modeling Team delivers precise CAD drawings and BIM models.

Building Point Cloud and Model
To create a 3D BIM model of the building’s core and shell, site data must be captured with 3D laser scan technology.

GPRS’ Delivers Data via SiteMap® Software

When you partner with GPRS, all data, including 2D drawings, and 3D models can be delivered via our new infrastructure data platform, SiteMap®. SiteMap® is a cloud-based software that stores up to date as-built records and site assets in an easy-to-use interface for project planning. As soon as the 2D drawings and 3D BIM models are completed by the GPRS Mapping & Modeling team, they are uploaded to SiteMap® to begin design-build planning.

Depending on which SiteMap® subscription tier you choose, every member of your team can have their own login to SiteMap®, to access accurate site information via desktop or mobile devices to make critical decisions. You can share data and models with subcontractors, engineers, and stakeholders to keep your project on time, on budget, and safe. GPRS’ data in SiteMap® improves project planning, mitigates risk, and improves communication for your team.

Nemours Children’s Health Case Study

Problem:

  • The building shell existed, including the foundation, structural skeleton, columns, beams, and fire piping.
  • A BIM model was requested to complete the design, minimize clashes, and plan for field coordination.
  • The VDC engineer wanted each trade to conduct their specific work without interference from other trades.

Solution:

  • A 3D Revit model was created from the point cloud with standard detail of architectural, structural, and MEP features.
  • A reflected ceiling plan, an architectural drawing that shows visible objects located on the ceiling of a space, was delivered for MEP coordination.
  • 2D plans and 3D models allowed this client to complete the design, communicate the scope of work to each trade, and efficiently schedule work to be completed.

Benefits:

  • Model-based implementations are the foundation of our client’s VDC department. They plan site layout and work sequencing for efficient logistics and safety.
  • The VDC engineer received an accurate 3D BIM model to design all building and MEP system components.
  • Effective planning and communication minimized trade interference, clashes, installation problems, rework, and added costs.

Client Testimonial: “I am very happy that your team was expeditious with the scanning and the model creation. My last experience with a different company did not go as smooth and I am glad to have found a reliable company to work with in the future.” Joseph M. – Project Superintendent

2D Plans
A reflected ceiling plan, an architectural drawing that shows visible objects located on the ceiling of a space, was delivered for MEP coordination.

Nemours Children’s Health Investments in Infrastructure

Turner Construction completed this project for Nemours Children’s Health in Paoli, Pennsylvania. Paoli has seen a huge increase in residents to the area, the current facility far exceeds maximum capacity in visits.

“Investments in our healthcare infrastructure benefit the entire community and add to the strong and healthy quality of life throughout the region,” said Pennsylvania State Senator Carolyn Comitta.

3D Laser Scanning & BIM Modeling Services

For 3D laser scanning and BIM modeling services in Philadelphia, Pittsburgh, Baltimore, New York City, and the surrounding area, contact GPRS today at 419-843-7226 or email laser@gprsinc.com.

Why Should I Choose GPRS?

Only GPRS has the ability to Intelligently Visualize The Built World™ for its customers throughout the life cycle of a project. Our comprehensive suite of infrastructure visualization services include utility locating, precision concrete scanning and imaging, 3D laser scanning, video pipe inspection, leak detection, drone photogrammetry, and mapping & modeling. Our nationwide network of professional Project Managers provide rapid response services near you, usually within 24 hours.

What can we help you visualize?

Frequently Asked Questions

What is a VDC Engineer?

Virtual design and construction (VDC) engineers manage the planning, visualization, and computer modeling of building projects. They work closely with BIM modelers, architects, and clients to create a cohesive construction plan.

What is 3D BIM Modeling?

Building Information Modeling (BIM) is a digital representation of the physical and functional characteristics of a building. Used for designing, constructing, and managing buildings and infrastructure, BIM provides a comprehensive digital model of a building, including its components and systems.

How Is BIM Used in Construction Management?

BIM modeling can help to improve construction management by increasing the accuracy of project estimates, reducing the number of change orders, and improving safety on the job site. BIM can help to streamline the construction process, by allowing the project team to access and share information in real-time. As a result, BIM has the potential to greatly improve the efficiency of construction projects.

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3D Laser Scanning

How GPRS Locates Stranded Sewer Crawler For Colorado Neighborhood

A maintenance worker for Jefferson County called GPRS because they had gotten their sewer inspection crawler stuck in a line. Connor Sorensen, GPRS Video Pipe Inspection Project Manager, Denver, Colorado was able to identify exactly where the crawler was stuck and help the client retrieve it. Read how he helped this client.

Rescuing Video Pipe Inspection Equipment is Just One of the Ways the Company’s Project Managers Go Above & Beyond for Customers

Most of the time, sewer inspections go off without a hitch. Occasionally, an incident occurs where it becomes impossible to retract the sewer scope CCTV camera. This happened recently in a residential neighborhood in Littleton, Colorado when a crawler got stuck in a storm line. GPRS was called to locate the camera and deliver a solution.

“A maintenance worker for Jefferson County called GPRS because they had gotten their sewer inspection crawler stuck in a line,” said Conner Sorensen, GPRS Video Pipe Inspection Project Manager, who is based in Denver, Colorado.

According to Sorensen, there are a few options for removing a CCTV camera that has broken down inside a sewer pipe. One could involve recovering the camera by excavation, but digging it up could be costly to repair and could damage the CCTV camera.

The best solution was to call GPRS for help.

GPRS Video Pipe Inspection Project Managers are equipped with powerful tools to conduct non-destructive assessments and identify sewer problems efficiently.

“My truck is equipped with a wide variety of sewer inspection equipment and technology. When I arrived on site, I had the right equipment to inspect the line and pinpoint the crawler, plus deliver screenshots and live video footage,” said Sorensen.

GPRS Video Pipe Inspection
Conner Sorensen, GPRS Video Pipe Inspection Project Manager in Colorado, discovered that the crawler had flipped over when taking a turn from one pipe segment to the next.

Sorensen discovered that the crawler had flipped over when taking a turn from one pipe segment to the next.

Using the Envirosight ROVVER X robotic crawler, Sorensen was able to identify exactly where the crawler was stuck. Sorensen utilized electromagnetic (EM) utility locating in conjunction with the robotic crawler to confirm the location. By tracking the battery sonde located at the top of the crawler, he could mark its' location on the surface.

He discovered that the flipped crawler was stuck between two pipe segments that met near a manhole. He was able to locate the manhole lid with a magnetometer, a challenging task because the manhole had been buried underground in a backyard. Sorensen was able to locate the manhole lid, dig down, then open it up to retrieve the crawler.

NASSCO certified video pipe inspection experts
GPRS was able to locate the manhole lid, dig down, then open it up to retrieve the crawler.

“After seeing how great our setup and equipment was, this client said they would like to start using GPRS for future video pipe inspection projects,” said Sorensen.

Equipment Used on Site

GPRS deploys a wide range of equipment to inspect and document sewer systems, laterals and drains, without costly excavation. GPRS used the following equipment to locate the broken-down crawler:

Robotic CCTV Crawler

GPRS’ Envirosight ROVVER X robotic crawlers can inspect large pipes in diameters ranging from 6 to 96 inches. These rugged, adaptable tools provide the most accurate views of pipeline conditions and their exact locations, identifying leaks or other structural deficiencies before they become a serious issue. The crawler can provide 360° live video & screenshots of sewer lines up to 1,000 ft. from the access point. The entire process is video recorded and presented to the client, so they know what issues were located and where.

Electromagnetic (EM) Locating

GPRS Project Managers use electromagnetic (EM) pipe and cable locaters to find underground utilities. These locators use a transmitter to emit a specific frequency that a receiver then detects to determine the precise location of the underground utility. A rodder is used in tandem with the EM locator to detect non-metallic pipes, with a signal transmitter energizing the rodder so that it can be picked up by the locator. The Vivax-Metrotech Vloc3 PRO Utility Locator is GPRS’ EM locator of choice.

Magnetometer

Magnetometers measure magnetic forces, which allow them to accurately detect magnetic fields created by ferrous, metallic objects buried underground. GPRS typically uses magnetometers to locate isolated, metallic utilities such as underground storage tanks (USTs), valves, manholes, and well heads.

Sonde

A battery-operated sonde can be built into the robotic crawler, lateral launch, and push cameras, to provide rough estimates of pipe length and depth up to 30-40 ft. They also allow our Project Managers to identify the location of underground utilities from an inaccessible location. They can be independently deployed for locates in non-metallic pipes by tracking the transmitter via EM technology such as the Vivax-Metrotech Vloc3 PRO Utility Locator.

video pipe inspection equipment
GPRS Video Pipe Inspection Project Managers are equipped with powerful tools to conduct non-destructive assessments and identify sewer problems efficiently.

Why Choose GPRS: The GPRS Difference

Video pipe inspection services allow a pipe to be inspected with remote, non-destructive equipment and technology. Excavating, aka daylighting or potholing to check lines to locate a blockage, crack, or leak can cost a lot of time and money.

GPRS has a team of NASSCO-certified professional Video Pipe Inspection experts, equipped with industry-leading cameras, ready to deploy and crawl your sewer system, including underground water, sewer, and lateral pipelines.

In addition to locating obstructions in the sewer line, GPRS VPI Project Managers can locate clogs, investigate cross bores, find structural faults and damages, and conduct lateral sewer line inspections.

Sewer problems can quickly be visualized and documented with NASSCO-certified inspection reports containing screenshots and video files of the interior condition of pipe segments.

When you partner with GPRS, the data we collect is instantly uploaded to SiteMap®, a cloud-based software platform that stores WinCan sewer inspection reports, PDFs, and any other visualization data the company provides for its customers in an easy-to-use interface for project planning and collaboration.

For video pipe inspection services in Littleton, Denver, Boulder, Colorado Springs, Fort Collins, Salt Lake City, and the surrounding area, contact GPRS today.

What can we help you visualize?

Frequently Asked Questions

What is Video Pipe Inspection?

Video Pipe Inspection (CCTV) is a sewer inspection service using industry-leading video cameras to prevent problems by inspecting underground water, sewer lines and lateral pipelines. Video pipe inspection or VPI is a safe and non-destructive method to locate utilities, obstructions, leaks, and cracks. VPI is effective because it allows for a pipe to be inspected with CCTV crawlers. Excavating and checking lines to locate a blockage, a crack, or a leak can cost a lot of time and money.

What is a CCTV Push Camera?

Push cameras are a great tool for situations where pipes or sewers being inspected are too small for the robotic crawler CCTV. A push camera can be manually fed into a pipe, and can twist, turn, and move through the pipe with ease. A push camera can be equipped with a locatable sonde for accurate mapping and real-time video recording for an instant diagnosis and easy playback. Push cameras allow you to detect sewer problems and leaks quickly and accurately.

What is NASSCO Certification?

NASSCO’s Pipeline Assessment Certification Program (PACP™) allows field workers to use a common language to classify conditions and record their level of severity. These results are then used to determine the best course of action to maintain or rehabilitate a compromised pipe, or section of pipe.

What is SiteMap?

SiteMap®, powered by GPRS, is an industry-leading infrastructure management software. It is a single source of truth, housing the 99.8%+ accurate utility locating, concrete scanning, video pipe inspection, leak detection, and 3D laser scanning data our Project Managers collect on your job site. Clients receive a complimentary SiteMap® Personal Subscription when GPRS performs services on your job site.

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Video Pipe Inspection

Cross Bore Inspections Explained

A historic university in California turned to GPRS when they needed to mitigate the risk of cross bores during a directional boring project.

A historic university in California turned to GPRS when they needed to mitigate the risk of cross bores during a directional boring project.

New telecommunication lines and electrical conduit were being installed all throughout the main campus of Pepperdine University in Malibu, California. To ensure the safe installation of those lines, GPRS Project Manager David Castro performed video pipe inspection services to locate and map the university’s wastewater infrastructure.

A private research university founded in 1937 by entrepreneur George Pepperdine, Pepperdine University opened its current main campus located near Malibu in 1972. Today, that campus consists of 830 acres overlooking the Pacific Ocean and Pacific Coast Highway.  

Castro conducted professional sewer inspection services to locate and map the campus’ intricate wastewater system that runs too deep for ground penetrating radar (GPR) scanners to detect.

A GPRS Project Manager pulls a sewer inspection rover out of the back of a van.
GPRS Project Managers conduct video pipe inspection services to mitigate risks to your wastewater infrastructure.

“Our client received as-builts from the university,” Castro explained. “We were called in to assist with the locating of storm and sewer lines, and to confirm what was on site and what was not. There were a lot of abandoned sections of pipe due to a newer system being installed at some point.”

GPRS’ client was installing new communication and electrical lines using a trenchless technology known as directional boring. Also called horizontal directional drilling, this process involves boring into the ground at a low angle with a directional drill bit to create a path for a new utility.  

One of the primary benefits of directional boring can also be its biggest drawback: by not having to trench to install a new line, you avoid significant surface disruption, but also run the risk of causing cross bores.

Cross bores are inadvertent intersections of utilities that most commonly occur when directional boring activities are undertaken prior to, or without proper inspection and mapping of underground infrastructure. The consequences of cross bores vary depending on the type of utilities involved; if a sewer line has been compromised, you run the risk of service interruptions, inflow/infiltration, or contaminated soil. If a gas line has been bored through, you could be a spark away from a catastrophic explosion.

The Cross Bore Safety Association estimates that there are at least one million undetected cross bores ridding the United States’ buried infrastructure. This is why GPRS recommends all municipalities and facilities require cross bore inspections of their storm and sewer systems both before and after any directional boring occurs, so that they can avoid adding to this troubling statistic.

These inspections are mandatory in many places across the country, including Fremont, California, where GPRS Project Managers uncovered ten cross bores when scanning before and after the installation of fiber optic cable throughout the city. By mandating these inspections, you ensure that these ticking time bombs can be remediated before it’s too late.

A yellow utility line is cross bored through a PVC pipe.
Cross bores like this riddle the United States’ buried infrastructure. You can prevent new cross bores from occurring within your infrastructure by requiring video pipe inspections of your sewer system both before and after directional boring occurs.

How GPRS Performs Cross Bore Inspections

GPRS’ sewer scope services help prevent cross bores by providing you with accurate, actionable data about your wastewater infrastructure.

Using an array of remote-controlled sewer inspection rovers, our Project Managers evaluate your sewer and stormwater lines for clogs, cross bores, structural faults, and damages, and other defects. These rovers are equipped with sondes: instrument probes that allow us to ascertain the precise location of the rover from the surface. In this way, we can map your lines at the same time we’re investigating them.

When we’re finished, you receive a detailed, NASSCO-certified report that ranks any issues found by severity and includes video and photographic evidence of the defects, so you know where to dig and what needs addressing first.

Industry-leading Training

The GPRS process for sewer inspections is supported by both NASSCO, the National Association of Sewer Service Companies, and SIM, or Subsurface Investigation Methodology.

NASSCO provides training on the most advanced, non-destructive methods for detecting and reporting anomalies within buried sewer lines. GPRS VPI Project Managers complete NASSCO’s Pipeline Assessment Certification Program (PACP), Lateral Assessment Certification Program (LACP) and Manhole Assessment Certification Program (MACP) to learn how to consistently and accurately assess the condition of pipelines, laterals, and manholes.

SIM is the industry-leading training process for utility locating, concrete scanning, video pipe inspections, and leak detection. All GPRS Project Managers must become SIM certified before entering the field, which means completing a minimum of 320 hours of field training and 80 hours of classroom training. During both the in-field and in-classroom instruction, the PMs encounter real-world scenarios that prepare them for anything they may encounter on a job.

By adhering to the standards set forth by both NASSCO and SIM, our Project Managers provide you with consistently excellent sewer inspections, so you always know you’re receiving the highest level of service from a sewer inspection company you can trust.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.  

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

How do you inspect a sewer system?

GPRS recommends hiring a professional sewer inspection company like us to inspect your sewer system, both for regular maintenance purposes, and before and after directional boring activities take place near your wastewater infrastructure.

These inspections involve the sewer inspection technician sending remote-controlled rovers into your lines to inspect them for clogs, cracks, and other defects that could compromise their integrity and lead to issues such as service interruptions.

NASSCO-certified sewer inspectors will leave you with detailed reports of any issues found, with those problems ranked by severity and identified with both video and photographic evidence to help you in your maintenance and repair planning.

Are sewer scopes worth it?

Purchasing sewer scopes and other inspection devices is too costly and impractical for most, and the training required to properly operate this equipment is an additional cost and time commitment. That’s why we recommend hiring a professional sewer inspection company near you to complete the work you need to maintain your wastewater infrastructure.

What size pipes can GPRS inspect?

Our elite VPI Project Managers have the capabilities to inspect pipes from 2” in diameter and up.

Yes, our SIM- and NASSCO-certified Project Managers use VPI technology equipped with sondes, which are instrument probes that allow them to ascertain the location of underground utilities from an inaccessible location. This allows them to use electromagnetic (EM) locating to map sewer systems at the same time they’re evaluating them for defects.

What deliverables does GPRS offer when conducting a VPI?

GPRS is proud to offer WinCan reporting to our Video Pipe Inspection clients. Maintaining sewers starts with understanding sewer condition, and WinCan allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. GPRS Project Managers not only inspect the interior condition of sewer pipes, laterals, and manholes – they can also provide a map of their location. The GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

Does GPRS offer lateral launch services?

Yes, we offer lateral launch capabilities as part of our standard video pipe inspection services.

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Utility Locating

How GPRS Used Specialized Equipment for Sewer Inspection in Nature Park

An otherwise inaccessible wastewater system was fully investigated thanks to GPRS’ specialized, mobile sewer inspection equipment.

GPRS Project Manager Tyler Papworth was recently tasked with investigating a nature park’s wastewater infrastructure.

The problem was that the access points for the 10,000 linear feet of sewer system within the park were scattered throughout rugged environment, most of which is inaccessible to any type of vehicle.

“This job was a first for me,” Papworth said. “Definitely a challenge. The main challenge for this project was transporting equipment to manholes."

Normally, GPRS conducts sewer inspections out of our specially equipped video pipe inspection vehicles, which power our mainline sewer scope and lateral launch crawlers.

Inside the back of a sewer inspection van.
GPRS normally conducts sewer inspection services out of specially equipped vehicles like this one, which houses and powers our remote-controlled rovers and all the other equipment we need to fully visualize your wastewater infrastructure.

However, we know that your projects aren’t always located in areas that are easily accessible. For conducting sewer inspections in hard-to-reach environments, GPRS Project Managers are equipped with specialized mobile carts that allow us to bring our VPI services to where they’re needed.

These carts have everything we need to conduct the sewer video inspection services needed to ensure the integrity of your wastewater infrastructure. This ensures generators to power our remote-controlled crawlers.

A cart carrying sewer inspection equipment.
GPRS Project Managers utilize these specially equipped carts to conduct video pipe inspections in remote areas.

“We were able to get to all the access points in this rugged environment,” Papworth said. “We were able to collect video in areas that other sewer inspection companies could not access using our mobile setup.”

GPRS video pipe inspections are conducted by our NASSCO-certified Project Managers. NASSCO stands for the National Association of Sewer Service Companies, a not-for-profit organization that provides industry-leading training on the most advanced, non-destructive methods to detect and report subsurface anomalies within sewer lines.

Our Project Managers provide WinCan reporting of all defects found within sewer systems, which allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. We not only inspect the interior condition of sewer pipes, laterals and manholes; we also geolocate our findings so you can pinpoint where you need to dig to complete repairs.

Additionally, the GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

Having your video sewer inspections conducted by NASSCO-certified inspectors is the best way to ensure you receive the best possible inspection and the most detailed reports to aid in your maintenance and repair planning. That was the case on Papworth’s job, where our client was blown away by GPRS’ ability to visualize their infrastructure.

“They mentioned multiple times how impressed they were with our mobile setup, and how we were able to fully complete this project ahead of schedule,” Papworth said. “They were grateful for the timely arrival of the deliverables, which we sent out on a weekly basis for their review.”

Why Do I Need a Sewer Inspection?

Hiring a sewer inspection company to investigate and map your wastewater infrastructure is the best way to mitigate the risks of cross bores and other defects.

Cross bores are inadvertent intersections of buried utilities. They most often occur when a new utility is installed using trenchless technology such as horizontal directional drilling (HDD), during which the installer cannot see what they are boring through.

This new line accidentally crosses paths with an existing utility such as a sewer pipe, leaving the latter compromised and susceptible to inflow/infiltration (I/I) and other, even more dangerous consequences. This is why cross bores are often referred to as ticking time bombs. And considering that the Cross Bore Safety Association (CBSA) estimates there are roughly a million undetected/untreated cross bores riddling the United States' buried infrastructure, you begin to see why this problem acquires immediate attention.

Mapping your sewer system prevents new cross bores by providing utility companies with an accurate road map of the areas they need to avoid when installing new lines.

GPRS sewer line video inspections find cross bores as well as revealing collapsed sewer lateral ducts, unknown blockages in your pipes, and other issues that could lead to service interruptions or other, larger issues.

70,000 sanitary sewer overflows occur annually in the United States. Over 50% of those overflows can be directly attributed to inflow/infiltration (I/I), which is the process of groundwater or water from sources other than domestic wastewater entering sanitary sewers.

I/I can cause dilution in sanitary sewers, which decreases the efficiency of treatment and can lead to overflows. Hiring a professional sewer video inspection service like GPRS ensures you have a comprehensive and up-to-date picture of the state of your infrastructure, so you can catch problems before they cause major issues.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

What size pipes can GPRS inspect?

Our elite VPI Project Managers can inspect pipes from 2” in diameter and up.

Can you locate pipes in addition to evaluating their integrity?

Yes, our SIM and NASSCO-certified Project Managers use video pipe inspection technology equipped with sondes, which are instrument probes that allow us to ascertain the location of underground utilities from an inaccessible location. This allows us to use electromagnetic (EM) locating to map sewer systems at the same time we’re evaluating the lines for defects.

What deliverables does GPRS offer when conducting a VPI?

GPRS is proud to offer WinCan reporting to our Video Pipe Inspection clients. Maintaining sewers starts with understanding sewer conditions, and WinCan allows GPRS Project Managers to collect detailed, NASSCO-compliant inspection data. GPRS Project Managers not only inspect the interior condition of sewer pipes, laterals, and manholes – they can also provide a map of their location. The GPRS Mapping & Modeling Department can provide detailed GPS overlays and CAD files. Our detailed WinCan/NASSCO reports contain screenshots of the interior condition of the pipe segments that we inspect, as well as a video file for further evaluation, documentation, and/or reference.

How much does a GPRS sewer inspection cost?

Every video pipe inspection job is unique, so we quote these jobs individually to meet your specific needs. Click here to schedule a service or request a quote today!

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Video Pipe Inspection

Is Self-Healing Concrete The Future Of Construction?

What if your next high-rise project could survive more than 2,000 years of weathering, ground-shifts, and use? Talk about leaving your mark on the construction industry! Companies are exploring modern concrete construction applications based on the secrets found in ancient Roman structures.

What if your next high-rise project could survive more than 2,000 years of weathering, ground-shifts, and use?

Talk about leaving your mark on the construction industry!

That is why there is a great deal of excitement around the long-sought-after discovery of how ancient Roman concrete has been able to survive – some of it almost fully intact – for two millennia.

And companies are already exploring modern concrete construction applications.

How Did Ancient Roman Concrete Survive For So Long?

There is no way to describe the sense of wonder that you feel when standing inside the Pantheon, home to the world’s largest concrete dome, which was dedicated in 128 C.E. and is still standing proudly – unreinforced by rebar, post-tensioning, or any other means – almost 2,000 years later. You are quite literally walking in the footsteps of the men and women who arguably created modern civilization, and their towering achievements have stood the test of time.

The interior of the dome of the Pantheon in Rome
The dome of the Pantheon in Rome is the world’s largest concrete dome and contains no reinforcements. It has stood for 2,000 years.

There are stunning examples of Roman architecture and infrastructure throughout Europe, most notably in the easily recognizable arched aqueducts – some of which still deliver fresh water to citizens – and are the historical precursors to the arched bridges we build today.

No other ancient civilization’s infrastructure construction work is so well-preserved. And, when you look at modern concrete structures – especially how quickly steel-reinforced concrete can weather and become structurally unstable – you have to wonder what those ancient Roman builders put in their concrete that made it last so long. Assumptions, some so often repeated that they were treated almost as fact, included the addition of volcanic ash (pozzolanic material), which was so popular as an additive to Roman concrete that the Empire shipped it across the known world when it was needed to continue construction in far-flung regions.

Pont du Gard, an ancient Roman aqueduct located in France
Many ancient Roman aqueducts like this one at Pont du Gard, France, can still transport water, 2,000 years after their construction.

Thanks to scientific researchers at MIT, Harvard University, and laboratories based in Switzerland and Italy, the clues left behind 2,000 years ago are finally being decoded. While the pozzolanic material plays a small role in the self-healing properties of the concrete, the secret lies in the lime.

What Is Lime & How Can It Heal Concrete?

Lime refers to products made of calcined limestone. Limestone itself is a sedimentary rock that contains high levels of calcium carbonate or magnesium carbonate, or a mix of the two, known as dolomite.

To “calcine” limestone, the process used to create lime, it must be heated. In modern construction, it is combined with water to create a slurry which is added to asphalt, cement, and other materials to improve adhesion, cohesion, reduce stripping, and slow aging.

Lime is an obvious additive to ancient Roman concrete, appearing as tiny, chunky “lime clasts” throughout the mixture, and it went largely unremarked upon, until MIT Professor of Civil & Environmental Engineering, Admir Masic, Dr. Linda Seymour, and their team reconsidered them.

“Ever since I first began working with ancient Roman concrete, I’ve always been fascinated by these features. These are not found in modern concrete formulations, so why are they present in these ancient materials?” wondered Masic.

It turns out that our modern process of creating lime slurry prejudiced previous research because no one had considered the lime could have been utilized any other way. However, spectroscopic assessment found that this lime was formed at the kind of extremely high temperatures (also known as hot mixing) that would form quicklime, which is significantly more reactive than slurried lime, which has proven to be the secret of the self-healing concrete.

A seismographic image of a piece of ancient Roman concrete showing the self-healing lime clasts in red
A spectrographic image of ancient Roman concrete shows the lime clasts that permeate the material, allowing it to heal cracks in just two weeks. (Photo Credit – MIT News Office)

The chemical reaction in hot mixing creates a much more brittle material with what MIT calls “a characteristically brittle nanoparticulate architecture” which allows it to more easily fracture and react with other materials. The reactions are spontaneous, which is how the lime can “automatically” heal the concrete.

Of course, being scientists, they had to test their discovery. So, they created two concrete samples: one with modern lime slurry and one with quicklime. Then, they fractured them and ran water over them to see what happened.

The modern lime slurry concrete showed no change.

The quicklime concrete had completely healed itself within two weeks.

The water reacted directly with the quicklime, creating a high-calcium solution that recrystallized as calcium carbonate to expand and repair the fissure.

Everything Old Is New Again

What this finding means for the concrete construction world remains to be seen, but the prospect of 2,000-year-old high-rise buildings and other concrete infrastructure is not a fantasy. It is a real possibility, likely to be realized within years.  

Prior to this discovery, microorganisms, and biological enzymes like Carbonic Anhydrase (CA), were listed as important technologies that could be used to create more sustainable concrete construction. The United Nations issued an action statement in which it estimated that self-healing concrete could fight climate change, reducing concrete construction’s global CO2 emissions, which currently sit at approximately 9% of all CO2 emissions.

And companies are all vying to be the first to market with new self-healing technologies. In fact, the MIT & Harvard researchers are “working to commercialize” their adapted quicklime concrete material.

If you work in modern concrete construction and need rapid response concrete scanning and imaging contact GPRS. In most cases, we can deploy a Project Manager to you within 24-48 hours and guarantee 99.8% accuracy.

Frequently Asked Questions

How much does it cost to get concrete scanning?

Every project and job has its own unique needs, so GPRS provides fast, customized quotes for each customer. Pricing is determined by the scope of the job. Learn more here.

What kinds of reinforcements are found in concrete?

The kind of reinforcements found in modern concrete construction usually are the following:

  • Rebar
  • Mesh Supports
  • Post-Tension Cables
  • Pan Decking
  • I-Beams

All of these supports, plus conduit and other embedments can be located and mapped by a professional concrete scanning & imaging company like GPRS. The difference is that we guarantee our work to be 99.8%+ accurate or we will pay the material cost to repair your damage. Learn more here.

Can you repair a damaged post-tension concrete slab?

Yes, in most cases, PT cables can be repaired or replaced, but it can be prohibitively expensive. Learn more here.

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Concrete Scanning

GPRS to Assist Infrastructure Act Rollout with Billions Awarded For Railroad Upgrades.

GPRS Concrete imaging and scanning, video pipe inspection, 3D laser scanning, and utility locating offer safety and assistance in recent U.S. infrastructure rollouts.

The biggest investment in rail in generations has just occurred, changing the trajectory of what the United States can do for passenger ail in years to come.

Department of Transportation (DOT) Secretary Pete Buttigieg  said “For decades now we have underinvested in passenger rail in the United States, Including along the Northeast Corridor.”

Not anymore.

The most recent release of funds from the Federal Infrastructure Investment and Jobs Act Rollout included $16.4 billion for 25 different major projects along Amtrak’s Northeast Corridor located from Boston, Massachusetts to Washington D.C. These grants which the White House and U.S. Department of Transportation announced on November 6, 2023 will be used to replace, upgrade or expand tunnels, bridges, electrical systems, tracks and signaling, some of which that date back over 100 years to the early days of the 20th century as stated by Engineering News Record (ENR).

How Will Funds Be Allocated?

Of the 25 passenger rail projects receiving funds for infrastructure upgrades, the largest portion of the money will be allocated toward the replacement of the 150-year-old Baltimore and Potomac Tunnel with the newly named Frederick Douglas Tunnel. The total funds allocated toward this new project out of the $16.4 billion round out to $4.7 billion.

Current condition of the Baltimore and Potomac Tunnel and planned upgrade route for the Frederick Douglas Tunnel.
Current condition of the Baltimore and Potomac Tunneland planned upgrade route for the Frederick Douglas Tunnel.

The second largest allocation of funds will go to the Gateway project's Hudson River Tunnel between New York City and northern New Jersey with a total of $3.8 billion in phased funding. This tunnel, which is over 100 years old, serves more than 200,000 passengers daily and has experienced significant damage from large storms over the years.

Other significant areas of funding will go to the Susquehanna River Bridge replacement project ($2.1 billion), the Penn Station Access Project in New York ($1.6 billion), and the Connecticut River Bridge project ($827 million). All of these upgrades will be used to improve travel times associated with the Northeast Corridor’s outdated infrastructure, which needs constant maintenance and repair due to age-related damages.

Northeast Corridor Awarded Projects Map

Why Is This Important?

The Northeast Corridor is the most heavily traveled rail corridor in the United States as stated in The White Houses’ Press Release. This rail system supports over 800,000 trips per day and if shut down would cost the U.S. economy over $100 million in lost productivity every 24 hours. Not only would this have a major impact on the regional and national economy at large, but it would affect millions of families. Although expensive repairs and new construction are needed to assist in furthering the development of this transit system, many jobs within the AEC industry will also be created from these projects for companies such as GPRS.  

How GPRS Can Help

As concerns about the aging infrastructure in the United States continue to grow, there has been a corresponding increase in construction spending in this sector. Last year alone, the estimated spend on infrastructure construction surpassed $1.2 trillion. Our nation's roads, bridges, transit, and water systems were given a D rating by the American Society of Civil Engineers (ASCE) 2021 Report Card, highlighting some of the deteriorating conditions they are facing such as at the Northeast Corridor Transit Projects. With the aim of the entire U.S. is to rebuild this crumbling infrastructure, GPRS is in a unique position to provide assistance in various capacities throughout the process in the Northeast Corridor.

For over 20 years, our Mid-Atlantic and Northeast teams at GPRS have amassed extensive experience in scanning dowels on highway projects, mapping rebar and concrete cover on bridges, and locating utilities around mass transit systems as shown in the images below.

 

As the government prioritizes the upgrade of U.S. infrastructure, GPRS is fully prepared to leverage our expertise and contribute to the rebuilding efforts.

In the Northeast and Mid-Atlantic regions spanning from Washinton D.C. all the way to past Boston Massachusetts, GPRS possesses the capability to provide essential data for the infrastructure rebuilding and visualization process.

Whether working with railroad, light-rail, or other mass transit assets, we can offer critical information on the location of underground utilities, millimeter-accurate point clouds and BIM modeling for engineers for concrete analysis and our concrete scanning services provide answers to vital questions about concrete thickness, concrete cover, rebar placement, layout, and dowel placement. Furthermore, our NASSCO and SIM certified video pipe inspection Project Managers utilize CCTV sewer inspection and push cameras to map the location and evaluate the condition of water and sewer pipes, lateral lines, and identify areas requiring repairs due to damages such as cross bores. By employing ground penetrating radar services, we generate accurate information that can facilitate effective planning.

GPRS equips you with the necessary jobsite information you need through our utility & infrastructure mappin platform, SiteMap® (patent pending). SiteMap’s software provides  your site’s accurate utility maps, 3D BIM models, sewer inspection reports, and 3D photogrammetry all in one easy to access and secure platform.

Want to learn more about SiteMap® and its ability to redefine collaboration on your jobsite?

Schedule a live demo today.

FAQs

How and why do I need to scan concrete?

Learn more.

What is video pipe inspection and how does it work?

Learn more.

Do I need to locate utilities on my jobsite?

Learn more.

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3D Laser Scanning

Federal grants accelerate build-out of EV infrastructure

A recently announced package of federal grants is designed to greatly expand the number of public electric vehicle (EV) chargers across the United States.

Funding is flowing into the development of electric vehicle infrastructure – which increases the number of EV-related construction projects occurring across the country, and the potential to save time and money by mitigating subsurface damage on these jobs.

On January 11, 2024, the White House announced $623 million in grants to help build out an EV charging network across the U.S., which, according to the press release, “will create American jobs and ensure more drivers can charge their electric vehicles where they live, work, and shop.”

“This is a critical part of the Biden Administration’s goal of building out a convenient, affordable, reliable and made-in-America national network of EV chargers, including at least 500,000 publicly available chargers by 2030 ensuring that EVs are made in America with American workers,” the press release stated.

Projects receiving funding as part of this grant announcement include:

  • $10 million to the New Jersey Department of Environmental Protection to build EV charging stations for residents in multi-family housing in disadvantaged communities and rural areas.
  • $15 million to the Maryland Clean Energy Center to build 58 electric vehicle charging stations in urban, suburban, plus low and moderate-income communities across the state.
  • $70 million to the North Central Texas Council of Governments to build up to five hydrogen fueling stations for medium- and heavy-duty freight trucks in Dallas-Fort Worth, Houston, Austin, and San Antonio.
  • $15 million to the County of Contra Costa in California to build a total of 52 fast chargers and 60 level 2 chargers at 15 branch locations of the county’s library system.
  • $15 million to Energy Northwest, a joint operating agency in Washington State, to install 40 fast chargers and 12 Level 2 chargers across western Washington State and northern Oregon.
  • $12 million to the City of Mesa, Arizona, to build 48 electric vehicle chargers for a variety of vehicle sizes, charging docks for e-bikes and e-scooters, and solar canopies to support electricity generation at the stations.
  • $1.4 million to the Chilkoot Indian Association, an Alaska Native Tribe, to build an EV charging stations in Haines, a rural and disadvantaged community where there are no publicly available EV charging stations.

Funding for the grants comes courtesy of the Bipartisan Infrastructure Law’s $2.5 billion Charging and Fueling Infrastructure (CFI) Discretionary Grant Program, which will fund 47 EV charging and alternative-fueling infrastructure projects in 22 states and Puerto Rico. This includes construction of approximately 7,500 EV charging ports.

As part of the announcement of the grant dollars, the Federal Highway Administration announced that it is awarding $311 million to 36 “community” EV charging and hydrogen fueling infrastructure projects in urban and rural communities across the country, including two Indian Tribes in Alaska and Arizona.

An additional $312 million in funding was given to 11 “corridor” recipients whose projects are located along roadways designated as Alternative Fuel Corridors.

This is just the latest federal support extended to the build-out of America’s public EV infrastructure. The U.S. Department of Transportation’s (DOT) Federal Highway Administration (FHWA) National Electric Vehicle Infrastructure (NEVI) Formula Program also provides funding to states to strategically deploy EV charging stations and to establish an interconnected network to facilitate data collection, access, and reliability.

Because of this continued, large-scale investment in EV infrastructure, the number of public and private EV charging stations in the U.S. nearly doubled over the past three years, climbing from 87,352 at the end of 2019 to 161,562 at the end of the first quarter of 2023.

As the country’s EV charging infrastructure continues to evolve and expand, subsurface damage lurks as the likeliest threat to derail these projects and waste federal dollars on downtime and repair.

A single utility strike during excavation costs, on average, $56,000 to repair. That strike also endangers the lives of your workers on site, as well as community members in the area.

Every strike that's avoided preserves funding that can be redirected to additional expansion of the EV charging network.

A GPRS Project Manager uses a GPR scanner to locate utilities while other Project Managers are featured in the background.
GPR is the primary tool for locating buried utilities prior to excavation.

How GPRS Utility Locating Services Support EV Build-Out

GPRS continues to play a crucial role in supporting EV infrastructure projects through our utility locating and mapping services.

Using ground penetrating radar (GPR), our SIM-certified Project Managers can fully visualize the subsurface infrastructure on your jobsite to ensure you avoid catastrophic damages that could derail your project, decimate your budget and reputation, and endanger your team.

GPR is a non-destructive detection and imaging method for seeing inside concrete or underground. A GPR scanner emits radio waves which interact with both metallic and non-metallic objects. Those interactions are then picked up by the GPR unit, and displayed in a readout as hyperbolas varying in size and shape depending on what was located and how deep that item is buried within the concrete or soil.

A qualified utility locating technician can interpret this data to tell you where it’s safe to dig, cut, or core – and perhaps more importantly, where it’s not.

A GPRS Project Manager uses an EM locator in a parking lot near an EV charger.
GPRS continues to play a crucial role in supporting EV infrastructure projects through our utility locating and mapping services.

To complement GPR technology, GPRS Project Managers use electromagnetic (EM) locating to detect passive signals emanating from buried electrical lines or active ones transmitted through known utilities. In this way, we ensure we’re always using the right technology to fully visualize your jobsite’s infrastructure.

Avoiding subsurface damage during the installation of EV chargers ensures this new infrastructure can sit safely alongside existing utilities, and that the federal dollars being used to support these projects aren’t wasted on costly repairs.

But you don’t just need accurate utility locate data; you need it at your fingertips, and you need to be able to share it with your team members.

That’s why GPRS created SiteMap® (patent pending), our industry-leading, cloud-based facility management platform that allows you to review, annotate, and securely share your data with whomever needs it, wherever they are, whenever you deem it necessary.

You receive a complimentary SiteMap® Personal subscription when you hire GPRS to conduct a utility locate, and all the data we collect is instantly uploaded into that account for you to access immediately.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, your budget intact, and your people safe.

What can we help you visualize? Click the links below to schedule a service today!

Frequently Asked Questions

Are EV charging stations free to use?

While some public chargers are free to use, many chargers require payment with a fee based on how much energy gets transferred to the electric car. The rate can also be based on a per-minute of charging basis, battery size, the charger’s power, or the energy delivery efficiency to the vehicle.

Does GPRS offer same day private utility locating?

Yes, we’ve strategically stationed our team of Project Managers across every major market in the U.S. so we can respond rapidly to your jobsite, no matter where it’s located. Additionally, we are prepared to provide emergency same-day private utility locating services, if needed.

Will I need to mark out the utilities GPRS locates?

No, GPRS will locate and mark all utilities for you. We have a variety of tools and markers we can use to highlight the locations of utilities, underground storage tanks and whatever else may be hiding.

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Leak Detection
About GPRS
3D Laser Scanning
Concrete Scanning
Drone Imagery

As-Built Data in the Cloud, Is it a Dream?

Imagine having access to digital as-built data of your construction project in the cloud, where you can instantly access your site’s data wherever you are, be it in the field or at the office. GPRS delivers digital as-built plans, allowing your team to access site data on a desktop or mobile device, removing the headache of paper plans, spreadsheets, and the time-consuming traditional methods of construction planning.

When completing a construction or renovation project, it is important to have an as-built: the exact dimensions and locations of all building and subsurface elements.

Complete and accurate as-built data ensures project teams have precise building layouts to improve communication, ensure reliable project planning, mitigate risk, determine project costs, reduce change orders, assign tasks to the construction team, and record construction progress.

As-builts can be delivered in many formats and are specific to each project site, scope, and requirements. Architects use as-builts in the form of 3D BIM models to complete design plans with accurate data and share with all project stakeholders. Renovations or modifications can be planned when teams have precise as-built architectural, structural, and MEP system specifications in 2D or 3D. Engineers use as-built data such as dimensional comparisons, floor surface contours, bolt hole locations, and precise prefabrication measurements for solving complex engineering challenges. Facilities can utilize as-builts to know the layout of equipment, utilities, and the building in case of an emergency.

Imagine having access to digital as-built data of your building or site in the cloud, where you can instantly access precise data wherever you are, be it in the field or at the office.

GPRS SiteMap® Software Delivers As-Builts, Maps & Models

GPRS is the nation’s leading provider of utility locating, concrete scanning and imaging, 3D laser scanning, video pipe inspection, and leak detection services. We deliver complete and accurate architectural, structural, MEP, subsurface utility, and concrete reinforcement detail in point clouds, 2D maps & drawings, virtual tours, 3D BIM models, and more.

GPRS delivers digital as-built plans, allowing your team to access site data on a desktop or mobile device, removing the headache of paper plans, spreadsheets, and the time-consuming traditional methods of construction planning.

When you partner with GPRS, the data we collect is instantly uploaded to SiteMap®, a cloud-based software that stores up to date as-built records and site assets, geolocated and layered in an easy-to-use interface for project planning.

Every member of your team can have their own login to SiteMap®, to access accurate site information via desktop or mobile devices to make critical decisions. You can share data with subcontractors, engineers, and stakeholders to keep your project on time, on budget, and safe. GPRS’ data in SiteMap® improves project planning, mitigates risk and improves communication for your team.

GPRS As-Built Software
GPRS delivers digital as-built plans, allowing your team to access site data on a desktop or mobile device.

As-Built Data Stored in SiteMap®:

SiteMap® software can house a great amount of your site’s data. Almost any location data and documentation can be uploaded and organized. Examples of information clients can store, access and share include:

  • Subsurface Utility Maps – GPRS delivers high-resolution subsurface utility maps in the form of PDF, KMZ, and SHP files with every outdoor utility locating project.
  • Concrete Layout and Imaging – GPRS delivers 2D drawings, 3D models, and virtual tours of the location and objects embedded in concrete such as rebar, post tension cables, conduits, and piping. We can provide floor flatness and floor levelness analysis, check tolerances, measure, concrete slab structural cracks and deflection, verify MEP concrete work and more
  • Point Cloud Data – GPRS delivers the point cloud data set captured by the laser scanner, containing the X, Y and Z coordinate of every visible detail of your project site.
  • 2D CAD Drawings – The data captured by GPRS is imported into AutoCAD software to create 2D drawings, such as site plans, floor plans, sections, elevations, reflected ceiling plans, floor contours, and more, based on your needs.
  • 3D BIM Models – GPRS 3D BIM models deliver a geometrically accurate solid model of a building or site, capturing infrastructure, spatial relationships, maintenance information, product models, as well as additional property and layer information.

  • 3D Mesh – GPRS’ team of CAD technicians use the point cloud data set of x, y, z coordinates to generate a triangulated mesh from the 3D points in .fbx, .stl, .obj, and .ply file formats. A 3D mesh model allows you to view a site’s geometry as a surface model inside a CAD environment without having to navigate a point cloud.
  • TruViewsTruViews are panoramic images from the point cloud. They allow you to visualize your site as if you were physically standing at the laser scanner. You can easily pan, rotate, zoom, and access all site data, plus utilize an intuitive set of mark up and measurement tools.
  • Virtual Tours – A 3D virtual tour is a collection of 360° panoramic rotating images, “stitched” together to form a full, 360° view of a location. A 3D virtual tour allows you to virtually walk-through your site or facility in minutes, take basic measurements, estimate clearances and distances, and add digital notes.
  • Drone Imagery – GPRS offers photogrammetry, aerial video and images, LiDAR scans, 2D othormosaic images, CAD drawings, 3D images, 3D models, and complete 3D fly throughs thanks to our state-of-the-art drone technology operated by FAA Licensed pilot.
  • Subsurface Void Information – GPR equipment can identify the area where a void is occurring and the boundaries of that void. It cannot measure the void's depth.
  • Sewer and Manhole Inspection Data – GPRS offers interactive WinCan reporting captured during video pipe inspection. WinCan software allows you to easily view and analyze detailed NASSCO-compliant inspection data.
SiteMap Powered by GPRS
SiteMap® transforms construction and infrastructure projects by providing 99.8% accurate, aggregated site data.

Why GPRS? The GPRS Difference:

For 22 years, GPRS has been the nation’s leading provider of utility locating, concrete scanning and imaging, 3D laser scanning, video pipe inspection, and leak detection services. GPRS’ mission is to deliver a comprehensive as-built record of the above ground and below ground infrastructure of a jobsite, so that any necessary excavation can be completed safely, and so that construction and renovation can be planned to reduce project risks, change orders, delays, and costs.

GPRS has a verified 99.8% accuracy rate for utility locating, and concrete scanning, and millimeter-accurate 3D laser scanning and photogrammetry services.

We offer a consultative approach to project management, working closely with you to ensure our data, maps, and models are the perfect solution for your project.

Our Mapping & Modeling Team can create anything from a simple GPS-enabled locating map of your utility locate, to highly detailed 2D CAD drawings and 3D BIM models, depending on your needs.

All data, maps, and models are quickly delivered via our new infrastructure data platform, SiteMap®. SiteMap® allows you to manage and share data according to your needs. If more information is documented on your project site, it can be easily and quickly uploaded to SiteMap. Additionally, you can download and export data to other systems for communication and processing.

SiteMap® transforms construction and infrastructure projects by providing 99.8% accurate, aggregated site data. Say goodbye to costly mistakes with incomplete records — SiteMap® ensures a single source of truth accessible 24/7.

See how simple it is to access, read, and share information in this intuitive, secure user interface.

Schedule a 30-minute demo with our SiteMap® experts and revolutionize your construction project.

Schedule a Demo >

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Drone Imagery
Mapping & Modeling

How Ground Penetrating Radar Powers GPRS Services

Ground penetrating radar isn’t just GPRS’ namesake; the non-destructive utility locating and precision concrete scanning technology is the backbone of several of our core services.

When Matt Aston founded GPRS in 2001, he derived the name of his new company from the primary tool he would use to help keep construction projects on time, on budget, and safe.

Ground penetrating radar (GPR) is a non-destructive scanning technology that allows us to “see” what’s inside a concrete slab or underground. By obtaining a comprehensive picture of the subsurface infrastructure on your jobsite, you know where it’s safe to dig, cut, or core. By knowing where these buried obstructions are located, you avoid costly and potentially dangerous subsurface damage.

A GPRS Project Manager uses a GPR utility locating scanner.
Ground penetrating radar is the most accurate and efficient method of locating utilities prior to breaking ground.

How GPR works – and how GPRS makes it work for you

A GPR device emits radio waves that penetrate a concrete slab or the ground and those waves interact with any objects they encounter. These interactions, or “bounces,” are picked up by the GPR device and displayed in a reading as a series of hyperbolas. The hyperbolas vary in size and shape depending on what kind of objects were detected. A trained utility locating or concrete scanning technician can interpret this data to tell you what was located and the precise locations, whether underground or within concrete.

GPR is the most accurate and efficient tool for precision concrete scanning. It’s such a reliable technology that it redefined a process some construction professionals still mistakenly refer to as concrete X-ray, because in the past the construction industry had to rely on unwieldy, dangerous, and limited X-ray scanners to see inside a slab.

Unlike X-ray, GPR can scan concrete when there’s only access to one side of the slab. GPR emits no harmful radiation, and today’s concrete scanning GPR devices are small and light enough to fit into hard-to-reach areas.

When used for utility locating, GPR can detect everything from fiber optic cable to an underground sewer line so that you don’t have to worry about hitting anything during excavation. While some still see subsurface damage as an inevitable risk when breaking ground, hiring a professional utility locator to sweep your dig site with GPR can keep damages from hurting your schedule, your bottom line, and most importantly, your people.

GPRS Project Managers use electromagnetic locators in a field.
Electromagnetic (EM) locating is a complimentary technology to GPR for locating utilities.

Knowing Your limits

Even the best tools have their limitations.

It requires significant training to learn how to properly use GPR technology and interpret the data it collects. Results of a GPR scan can be affected by the moisture content in the concrete or soil being analyzed, and specific soil compositions can limit the depths to which GPR can penetrate.

GPRS Project Managers also deploy electromagnetic (EM) locators when locating utilities to compensate for GPR’s limitations.

EM locators detect electromagnetic signals radiating from metallic pipes and cables. These signals can be created by transmitting current to a known pipe, or from the current flow in a live electrical cable.

By learning to deploy EM locating in conjunction with GPR, our Project Managers ensure we’re providing you with the most accurate picture of your jobsite’s infrastructure.

Industry-Leading Training & Processes

As previously stated, it takes specialized training to learn how to properly use sophisticated technologies like GPR and EM locating.

The best training programs for utility locators and concrete scanners are based on Subsurface Investigation Methodology, or SIM.

All GPRS Project Managers are required to become SIM-certified, which means completing a minimum of 320 hours of field training and 80 hours of classroom training on how to properly perform utility locates and concrete scans, as well as detect pressurized water line leaks, and conduct comprehensive video (CCTV) pipe inspections.

This training places our PMs in real-world scenarios where they can learn how to tackle anything they’ll encounter in the field.

When you compare this to the national standard for certification in subsurface investigation (ASNT SNT-TC-1A) – which states that a minimum of just 60 hours of practical application coaching and 8 hours of classroom training are completed for a utility locating specialist to achieve NDT Level 1 certification – you start to see what sets GPRS Project Managers apart.

GPRS Project Managers use top-of-the-line GPR scanners to visualize what’s inside concrete before you cut or core, or to visualize what’s underground before you excavate. Our mission is 100% subsurface damage prevention, and our Project Managers receive industry-leading training to ensure they provide you with data that is actionable and accurate. And with a team of over 500 Project Managers strategically placed across the country, we can respond rapidly to your jobsite no matter where it’s located.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

How deep does GPR penetrate?

This depends on factors such as moisture content and composition of the concrete or soil being scanned. Our general rule of thumb is that GPR can typically penetrate 18”-24” in concrete and up to 8’ into soil.

Can GPR locate voids in concrete or underground?

GPR can identify the area where a void is possibly occurring, but it cannot identify the precise boundaries of a void or measure it’s depth.

How much does GPR cost?

A GPR unit for conducting utility locates costs between $14,000 and $100,000 to purchase, depending on the number of available frequencies, the user interface, and GPS mapping applications that the device will function with.

There’s a similar price tag attached to concrete scanning GPR units, and either device will require proper training for you to be able to operate effectively.

Hiring a professional utility locating or concrete scanning company like GPRS is the most cost effective and efficient path to accurate and actionable data about your jobsite’s infrastructure.

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Structural Defects in Garage Highlight Need for Structural Analysis and Concrete Testing

A disintegrating parking garage in Manhattan temporarily shut down service between two Amtrak stations – but it could have been much worse were it not for a recently passed law that led to the issues being discovered.

A disintegrating parking garage in Manhattan temporarily shut down service between two Amtrak stations – but it could have been much worse were it not for a recently passed law that led to the issues being discovered.

The 107-space parking garage is in the Hell’s Kitchen neighborhood of Manhattan, where it sits on a platform built atop two Amtrack lines running from Penn Station north through Westchester County.

According to an Engineering News-Record article, an engineer initially discovered structural issues in the garage in early November 2023. The problems were so bad, the engineer called 911 to report them.

This led to city officials issuing a vacate order. Subsequent investigations conducted by the NYC Dept. of Buildings and Amtrack led to the discovery of two small holes, each several inches across, in the concrete on the entrance ramp of the garage and a ramp to the lower level.

It was eventually determined that all levels of the garage were defective with exposed rebar and cracks. City and Amtrack engineers initially believed they could install overhead protection above the tracks so trains could continue to run while repairs to the garage were undertaken. However, additional structural issues at the roof of the tunnel below the garage were discovered by workers while they were installing this protection.

Caution cones around a hole in concrete.
(Photo credit: ENR, via NYC Dept. of Buildings) Structural damage like this was found throughout a parking garage in Manhattan in late 2023. The issues necessitated a temporary closure of the Amtrak lines that run beneath the garage while repairs were completed.

A bulging masonry façade above one of the garage entrances, and a crumbling concrete retaining wall were also discovered on site.

City engineers ultimately determined the Amtrak lines needed to be closed until repairs were completed.

These defects were visible to the naked eye – no specialized investigative technology was required to see the issues which led to the temporary closure of the garage and the lines.

The garage sits next to a 38-story residential building and a school, but according to the ENR article, city officials said these buildings were not impacted by the structural defects as they were “contained to the area below the garage.”

In 2021, New York City passed a law that added new requirements for parking structure owners to hire an engineer to inspect their properties at least once every six years.

The NYC law went into effect January 1, 2022, requiring owners of parking structures to hire a NYS licensed and registered professional engineer to inspect the structure at least once every six years and file a report with the Department of Buildings documenting the results of the inspection that include buildings, or portions of a building, used for parking or storing motor vehicles, including space inside or under a building, and open parking garages and enclosed parking garages as define din the NYC Building Code.

Those who fail to comply with the law may be subject to hefty fines.

This law is why an engineer was evaluating the Hell’s Kitchen garage in the first place. Had the defects not been identified and the proper precautions taken, the situation could have easily devolved into something like what occurred in lower Manhattan in April, where the collapse of a 65-year-old, three-story parking garage claimed the life of one person and injured several others.

The issue of deteriorating concrete structures is not limited to parking structures, as evidenced by the tragic 2021 collapse of the Champlain Tower condominiums in Surfside, Florida, that claimed the lives of 98 people.

Both the Surfside and Manhattan stories highlight the need for routine structural analysis and concrete testing of these structures, so defects and damage can be identified and repaired before the unthinkable happens.

Qualified technicians use non-destructive technologies such as Ultrasonic Pulse Velocity (UPV) testing and Tomography to evaluate the integrity of concrete structures.

When problems are identified, precision concrete scanning tools like ground penetrating radar (GPR) and electromagnetic (EM) locating help find and map post-tension cable and rebar that may require repair, and items like embedded utilities that need to be avoided.

GPRS Project Managers conduct ground penetrating radar scans in a parking garage.
Ground penetrating radar scanning helps detect potential issues such as voids that can compromise the structural integrity of concrete structures.

Tools of the Trade

Ultrasonic Pulse Velocity (UPV) testing is the simplest non-destructive method of evaluating a concrete slab for structural defects. UPV involves placing a transmitter on one side of a concrete slab, and a receiver on the other. The transmitter emits a series of ultrasonic pulses, or “taps,” through the concrete and to the receiver, which measures the amount of time it takes for the pulse to travel through the slab.

The data from UPV testing can be used to create maps illustrating the variations in pulse velocity that may point to potential structural issues, including honeycombing, inclusions, cracks, and cold joints.

Tomography, or Ultrasonic Tomography, can be used to both confirm UPV results and to provide clear 3D tomographic imaging of the interior of the slab. It not only maps the interior of a concrete slab; it also provides a color-coded, three-dimensional image detailing any insertions, cavities, cracks, holes, honeycombing, foreign inclusions, and other flaws.

Ground penetrating radar complements UPV as the most accurate, versatile tool for seeing what’s inside a concrete slab without physically penetrating it.

GPR scanners emit radio waves that interact with any subsurface material they may encounter. Those interactions, sometimes referred to as “bounces,” are picked up by the GPR receiver, and displayed on a reading as a series of hyperbolas that vary in shape and size depending on the type of material encountered. A skilled GPR technician can interpret this data to provide a highly accurate picture of the subsurface infrastructure embedded in that concrete slab.

EM locating compliments GPR scanning by detecting the electromagnetic signals radiating from metallic pipes and cables.

These signals can come from the EM locator’s transmitter, which applies current to the pipe, or from current flow in a live electrical cable. They can also result from a conductive pipe acting as an antenna and re-radiating signals from stray electrical fields (detected by the EM locator functioning in Power Mode) and communications transmissions (Radio Mode). Signals are created by the current flowing from the transmitter which travels along the conductor (line/cable/pipe) and back to the transmitter. The current typically uses a ground to complete the current. A ground stake is used to complete the circuit through the ground.

By using GPR and EM locating in conjunction, qualified concrete scanning technicians can identify and map everything buried in or just beneath a concrete slab. This ensures safe concrete cutting and drilling and assists in concrete structural analysis by indicating the presence of voids and other defects.

Let GPRS Help You!

GPRS concrete scanning services assist in the evaluation of concrete structures by visualizing the subsurface infrastructure embedded in the concrete slab*.

Our mission is 100% subsurface damage prevention. By hiring a professional concrete scanning company like GPRS to visualize what’s inside your concrete before you cut or core it, you ensure you avoid costly and potentially dangerous subsurface damage.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time and on budget, and your people safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

Can GPR determine the difference between rebar and electrical conduit?

Yes, ground penetrating radar can accurately differentiate between rebar and electrical conduit in most cases. We have an extremely high success rate in identifying electrical lines in supported slabs or slabs-on-grade before saw cutting or core drilling.

Additionally, GPRS can use EM locators to determine the location of conduits in the concrete. If we can transmit a signal onto the metal conduit, we can locate it with pinpoint accuracy. We can also find the conduit passively if a live electrical conduit runs through it.

How is GPR used to identify tendons vs. rebar in a post-tensioned slab?

In post-tensioned structures, we typically find one mat of support rebar near the base of the slab. This mat is generally consistently spaced and remains at a constant elevation. Post-tension cables are generally found above this support mat and “draped” throughout the rest of the structure. The elevation of the cable is usually high near the beams and column lines and drapes lower through the span between beams and column lines. Knowledge of these structural differences allows us to accurately differentiate between components. Our Project Managers will leave you feeling confident in our findings and in your ability to drill or cut without issue.

Why do I need concrete scanning?

When you’re excavating for a new structure or renovating an old building, there are countless subsurface hazards that need to be accounted for prior to excavation, core drilling or saw cutting.

Cutting or drilling without first having the concrete scanned could be detrimental to your job site and company, and it could lead to subsurface damage that costs tens of thousands of dollars to repair and endangers everyone on the project.

*GPRS does not provide concrete testing services, and we provide structural analysis on a limited basis when required by the scope of the work.

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Data Center Building Upgrades Require GPRS 3D Laser Scanning

Our client announced capital improvements across several of its data centers, including the 1914-built Pittock Block Internet Exchange Building, located in Portland, Oregon. GPRS was hired to 3D laser scan a portion of the 8-story, 302,262 sq. ft. building and create a 3D BIM model to plan for renovations.

Building State-of-the-Art Data Centers

Telecom data centers are essential for many businesses, as they supply a vast range of services, including website hosting, business data storage, financial transaction processing, and more. There is a rising demand for data centers, as businesses need to scale their IT infrastructure as they grow.

A colocation center, also known as a “carrier hotel,” is a type of data center where you can rent space and bandwidth from the data center’s owner. They provide power, cooling, and network connectivity, but the tenants provide their own hardware, such as servers, storage, and supporting infrastructure. These facilities also might have food service, workspace for customers, and conference rooms.

Data center owners aim to provide state of the art facilities by upgrading the space, investing in the tenant’s expanding needs, and accommodating new content and network providers. Power and cooling continue to be primary concerns for the data center industry.

As clients upgrade their facility, they require comprehensive as-built site data for design planning and construction management. Telecom and data center facilities are calling GPRS for accurate architectural, structural, and MEP as-builts to reduce the reworks, delays, and costs associated from working with outdated plans.

The Pittock Block Internet Exchange Building, located in Portland, Oregon, announced capital improvements across several of its data centers. GPRS was hired to 3D laser scan a portion of the 8-story, 302,262 s.f. building and create a 3D BIM model to plan for renovations.

The 1914-built historic building evolved over the years from serving as an electric substation distribution location to housing the second greatest density of telecom networks and carriers on the west coast.  The data center facility includes 16 fiber optic carriers, 179 other service providers, and seven subsea cables connecting the building’s global grade Internet Exchange.

Infrastructure Upgrades in First Phase of Project

“With the expansion and further investing in Pittock Block, we will continue to support our tenants’ expanding needs while accommodating new content and network providers,” said J. Todd Raymond, CEO of the data center.

“The goal is to build and improve upon the existing building network to create an ecosystem of IT infrastructure providers and content delivery tenants. The first phase of this project will focus on common areas and mission-critical infrastructure to create turnkey data center halls and retail suites,” added Raymond.

The data center hired a large-scale construction contractor to complete the renovation project, including upgrades to the tenant and common areas on the ground floor, mezzanine level, fourth floor, and eighth floor. Renovation plans also included the construction of new entry vestibules, equipment and support rooms, as well as modifications to ground floor facades.

GPRS 3D Laser Scanned the Data Center

Daniel Jones, GPRS Project Manager, worked closely with the client to scope this project. The client requested as-built data of the basement, building levels 1-4 and 8 and the exterior roof. Some of the site was not ready for 3D laser scanning on the first mobilization, as it was in the middle of demolition. Daniel worked with the client to schedule a second mobilization to capture the as-built details of this space.

In total, Daniel captured approximately 200,000 square feet of space with the Leica RTC360, taking 504 laser scans. “We captured the main structural, MEP systems, data closets, and cooling system in the building, including the walls, floor, ceiling, doors, windows, exposed columns, beams, stairs, piping, conduit, and ducts,“ said Jones. Colorized point cloud data was delivered to the GPRS Mapping and Modeling team to generate an Autodesk Revit 3D Model for the client. A 3D model will accurately represent the structure’s geometry, spatial relationships, building structure, and systems.  

“This property spanned an entire city block and featured a central lightwell. My 3D scanning training and experience helped me to accurately tie in data from the lightwell to the rest of the building,” said Jones. “The roof also contained an extensive cooling system to ensure that hot air generated by the data center is expelled to prevent damage to the servers.”

3D BIM Model Data Center

3D Model Delivered for Design-Build

The GPRS Mapping and Modeling team delivered a design intent architectural/structural/MEP standard detail 3D BIM model. Design intent means the model will be delivered as a best fit to the point cloud, working within customary standards such as walls being modeled perpendicular to the floor, pipes and conduit modeled straight, floors and ceilings modeled horizontal, and steel members modeled straight and plumb.

A design intent 3D BIM model will produce cleaner 2D drawings and allow for easy dimensioning of the scan area. 2D drawings are useful for pre-construction, allowing teams to understand the project’s scope quickly, prior to getting into the finer details using a 3D model.

3D laser scanning and BIM modeling will allow the general contractor to expedite design-build plans and construction management. For example, when upgrading the cooling system, a BIM model can optimize system efficiency, with better fabrication and fewer errors. BIM tools bring powerful capabilities and help contractors to reduce change orders, delays, and costs.

“All of us face difficult obstacles on our projects, but at the end of the day, we collectively turn around, look at what we’ve created, and it takes our breath away. It’s why we do it.” - Tim Regan, President and CEO, data center Construction Contractor.

2D CAD Drawings Data Center
2D drawings are useful for pre-construction, allowing teams to understand the project’s scope quickly, prior to getting into the finer details using a 3D model.

Why Choose Us? The GPRS DIFFERENCE.

You can trust the GPRS team to provide the best experience in laser scanning by walking you through the entire 3D laser scanning process from pre-planning through project completion.

We offer a consultative approach to project management, working with you to ensure our data, maps, and models are the perfect solution for your project. The data delivered is accurate within millimeters, and the maps and models provide complete as built and location data.  

Our elite team of Project Managers is required to complete an extensive training program before performing field services on your jobsite. Every Project Manager completes 80 hours of classroom training and 320 hours of field mentoring.

The Leica RTC360 laser scanner used on site captures two million data points per second with 2-6mm accuracy, delivering a colorized point cloud and HDR imagery in under 2 minutes per scan location. Automatic targetless field registration and the seamless transfer of data from site to office reduces time spent on the jobsite.

GPRS offers a wide range of laser scanning, photogrammetry, and visualization services. We work closely with each client to define the project scope and use the right tools to achieve the accuracy and deliverables needed to successfully complete each project.

All GPRS team members work together to help you Intelligently Visualize The Built World® to reduce change orders and costs, so that your projects come in on time and on budget.

For 3D laser scanning services in Portland, Vancouver, Seattle, Sacramento, Spokane, Boise, and the surrounding area, contact GPRS today at 419-843-7226 or email laser@gprsinc.com for your customized quote.

Customized quotes are developed for each client based on the scope of the project and the deliverable requested.

What can we help you visualize?

Frequently Asked Questions

What is a colocation data center?

A colocation data center refers to a data center that enables you to rent out space for your own hardware. For example, instead of using your own space for your servers, cables, networking devices, and other computing equipment, you can rent out space in a colocation data center.

What are the advantages of a laser scanner?

A single laser scan captures millions of 3D data points per second, providing incredibly rich detail of a building or project site. Datasets are dimensionally accurate, measurable and shareable, expediting project planning and execution.

Will my project require utility locating?

Yes, utility locating will provide clients up-to-date utility maps so that any necessary excavation can be completed safely, and so that maintenance and repairs can be planned and targeted to reduce unnecessary excavation, utility strikes, and accidents. GPRS has completed subsurface utility locating for many of the large telecom companies in the United States; in fact, our highly trained project managers have experience in all telecom-related settings such as OSP construction, macro tower placement and modifications, ISP placement and installation, small cells, fiber optic installation, and much more.

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How the Telecom Industry Can Transform U.S. Subsurface Damage Prevention

Stakeholders in the telecommunications sector have an opportunity to transform the U.S. damage prevention system, according to a white paper recently released by the Common Ground Alliance.

Stakeholders in the telecommunications sector have an opportunity to transform the U.S. damage prevention system, according to a white paper recently released by the Common Ground Alliance.

The CGA issued Telecom’s Critical Role in Reversing Utility Damage Trends in December 2023, highlighting how the ongoing, rapid deployment of fiber throughout the United States is significantly impacting the country’s damage prevention system.

“As both substantial contributors to and recipients of damages, telecom stakeholders have much to gain by enhancing prevention efforts,” CGA President & CEO Sarah K. Magruder Lyle wrote in the white paper. “…While telecom rightfully prioritizes expanding its networks and customer base, a competitive advantage does not need to come at the expense of safety. Boosting damage prevention’s profile internally and collaborating more extensively with partners are pathways to improved outcomes…”

The unprecedented expansion of fiber optic lines and other telecom systems comes courtesy of historic levels of federal funding for these projects. The Bipartisan Infrastructure Law passed in 2021, for example, includes a $65 billion investment to expand affordable and reliable high-speed internet access in communities across the U.S.

As highlighted in the CGA’s white paper and the organization’s other published findings, this historic build out has put telecom in the center of ongoing efforts to mitigate subsurface damage.

Telecom and natural gas remain the most damaged facilities when subsurface damage is reported, according to the CGA’s 2022 DIRT Report. Telecom workers also contribute to the most damages, and telecom and water/sewer operators are the largest contributors to instances in which excavators cannot legally begin work.

The CGA conducted video interviews with 17 individuals involved in the telecom sector and issued an online survey to 520 damage professionals as part of its research for Telecom’s Critical Role in Reversing Utility Damage Trends.

The white paper includes four key findings regarding the U.S. telecom sector’s impact on the U.S. damage prevention system:

  1. The telecom sector has the most potential to impact the U.S. damage prevention system – and its own bottom line: The CGA argues that the amount of existing underground telecommunications infrastructure across the U.S., coupled with the boom in new telecom installations, makes telecom an influential damage prevention stakeholder and provides the sector considerable incentives to reduce damages.
  2. Growth and customer satisfaction are prioritized over damage prevention by many telecom stakeholders: In the interviews conducted by the CGA, professionals in the telecom sector most often mentioned business growth and customer service/satisfaction as their top priorities over safety – including damage prevention.
  3. Rather than focus on long-term national standardization strategies to reduce damages, telecom can achieve more timely results by improving internal practices and contracts: The interviewed telecom stakeholders believe that consolidated 811 centers, a national 811 law with more stringent enforcement, and required certification programs for locators and excavators would lead to vast improvements in the 811 system. The CGA, however, argues that these strategies would take years to implement, and internal changes to damage prevention practices within telecom companies is a quicker path to damage mitigation.
  4. Securing executive-level buy-in from telecom facility owners/operators on rigorous damage prevention standards will be necessary to reverse the upward trend of damages to U.S. infrastructure: As processes such as damage prevention strategies are most often dictated by executives within telecom companies, the CGA says that intervention from those decision makers is vital to reversing recent, troubling trends in subsurface damages.

Despite the noted challenges, Magruder Lyle wrote that telecom leaders “are embracing their potential to lead” the CGA’s ’50-in-5’ challenge, which is a call to action to reduce subsurface damage by 50% over the next 5 years.

The CGA recommends 6 key actions for telecom stakeholders to take to help mitigate subsurface damage:

  1. Ensure executives are at the damage prevention table, and are engaged and active participants.
  2. Update facility maps, regularly share them with 811 centers and contract locators, and provide 811 ticket-level facility visualizations to excavators, designers, and engineers.
  3. Coordinate with other stakeholders in advance of large projects.
  4. Improve damage data collection processes with a focus on root cause analysis.
  5. Evaluate contract structures with locators and excavators: Consider incentives versus penalties, best-value versus lowest-bid contracts, and reimbursing potholing.
  6. Become Damage Prevention Institute accredited, and require locators and excavators to do so as well.

“When telecommunications companies treat damage as unacceptable rather than inevitable, they can transform their operations in ways that both improve public safety and strengthen their market positioning,” the white paper states.

How Can GPRS Help You Avoid Subsurface Damage?

GPRS utility locating and mapping services address the CGA’s concerns and provide telecom companies a streamlined path forward for eliminating the risk of subsurface damage on their projects. For over 20 years we’ve worked closely with telecom companies to develop and implement specific processes that benefit these contractors and service providers.

GPRS has assisted in the large-scale adoption of 5G networks and continues to help in the nationwide build-out of fiber.

Utilizing ground penetrating radar (GPR) and electromagnetic (EM) locating technologies, our SIM-certified Project Managers can find water and sewer lines, electrical conduit, buried fuel tanks, and more. By locating these items before you break ground, we save you time and money you’d otherwise lose to downtime and repairs. More importantly, mitigating subsurface damage means ensuring the safety of your workers and the surrounding community.

All the data our Project Managers collect on your site – including utility locates, concrete and 3D laser scans, leak detections and video pipe inspections – is instantly uploaded into SiteMap®, our industry-leading facility management platform where you can review, annotate, and securely share your data anytime, anywhere, and with anyone.

You receive a complimentary SiteMap® Personal subscription when you hire GPRS to perform a utility locate. This means you’ll have the data you need, at your fingertips, to mitigate subsurface damage on all your projects.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time, on budget, and safe.

What can we help you visualize? Click the links below to schedule a service or request a quote today!

Frequently Asked Questions

How is fiber cable installed?

One of the most common methods for installing fiber and other utility lines is a trenchless technology called horizontal directional drilling. This method of installing utilities involves drilling into the ground to gouge out a route for the utility lien to then be fed through. The problem with this technology is that, if professional utility locating and video pipe inspection services aren’t conducted prior to breaking ground, catastrophic subsurface damage such as cross bores can occur.

What is a cross bore?

A cross bore is an inadvertent intersection of utilities that most commonly occurs during the utilization of trenchless technologies such as horizontal directional drilling. Cross bores can have catastrophic consequences such as explosions, which is why utility locating and sewer inspection companies like GPRS are committed to helping prevent them from occurring.

Does GPRS offer same day private utility locating?

Yes, our nationwide team professional Project Managers can respond rapidly to emergency same-day private utility locating service calls on your job site.

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How To Protect Your Municipality From The Dangers of Directional Drilling

Accurate utility locating and video pipe inspection services protect your municipality from the dangers of horizontal directional drilling.

Over 1 million cross bores lie undetected throughout the U.S. as estimated by The Cross Bore Safety Association.

Each one of these underground utility intersections is a potential disaster waiting to happen in a municipality. Whether it’s a damaged phone line resulting in a service interruption that stops citizens from contacting 911 when they need it most, or an exploding gas line struck by a plumber causing $30,000,000 in damages, and burning two little girls, municipal utility and safety managers ignore cross bores caused by directional drilling at their peril.

These damages occur more often than you think and are the result of contractors directional drilling without knowing the locations of underground sewer and utility infrastructure; leaving behind a life-threatening result known as a utility cross bore.

Video footage of a cross bore in a sewer line.
GPRS Video Pipe Inspection Project Manager Andy Jurski discovered this cross bore within a sewer line.

What is a Cross Bore?

A cross bore as stated by the Cross Bore Safety Association is “an intersection of an existing underground structure by a second utility resulting in direct contact between the transactions of the utilities that compromise the integrity of either utility or underground structure”.

The presence of an undetected cross bore in a sewer line can result in backups in the  line, compromise the structural integrity of the sewer pipes, cause contamination, and damage the overall sewer system.

Cross bored utility lines in a trench.
A gas line drilled through an existing sewer line, resulting in a dangerous cross bore.

Why Cross Bore Prevention Matters

Since the year 2000, there have been dozens of reported explosions as a result of sewer lines being directionally drilled through by gas line installers. These events result in what is known in the video pipe inspection industry as a ticking time bomb. Because it’s not if they’ll explode, it’s when. When gas lines that have been drilled through an existing sewer line rupture, methane gas can leak into homes above the cross bore, and at the flip of a switch could result in a deadly explosion as shown in the images below.

A home before and after an explosion caused by a cross bored gas line.
A home before and after an explosion caused by a cross bored gas line.

How You Can Prevent Cross Bores in Your Municipality

While calling 811 before you dig is required by law and is the first step needed to get all public utilities located prior to breaking ground when directional drilling occurs, sewers are often unmarked and excluded from most 811 dig requirements leaving the job to map out sewer lines and other private facilities on site up to a private utility locator such as GPRS. In most cases, the responsibility to contact this private utility locator is in the hands of the contactor performing the directional drilling service. While many companies are proactive and take this step to keep existing infrastructure safe, others decide not to, which results in more cross bores within the existing underground infrastructure, as shown in the image below.

A PVC sewer line damaged by another utility line cross bored through it.
The main sewer line for a community was drilled through because no one called a private utility locator to map the underground utilities before applying trenchless technology.

What Can The Public Works Department Do To Help?

The public works department as defined by Opengov.com, is “responsible for the construction and maintenance of city streets, highways, city parking facilities, city parks, city storm and sanitary sewers and all other owned properties and facilities.”

These facilities fall under the responsibility of the local public works department, which gives the Public Works Director of the municipality the ability to require all contractors performing directional drilling work within their city to conduct mandatory pre and post cross bore inspection services anytime directional drilling work occurs.

This standard can significantly limit new damages caused by directional drilling while also ensuring that any strike that previously occurred is accurately located and fixed as shown in the city of Fremont, California.

The True Cost of Directional Drilling Damages

In 2021, the use of directional drilling to install new utility lines resulted in 19,521 reported underground utility strikes which was the third most prominent statistic for utility damage from the Common Ground Alliance's 2021 DIRT Report. These damages, when taking into consideration the $56,000 cost of damaging and repairing an individual utility line, resulted in over $1 billion in damage in 2021 alone, not including indirect costs of cross bore damages.

Directional Drilling resulted in at least $1,093,176,000 in utility damages in 2021 alone.

No matter how you look at it, damages caused by directional drilling and cross bores are expensive and dangerous. Sewer line repairs alone can cost up to $150,000 per cross bore while other damages caused by cross bore-initiated explosions have been upwards of $30,000,000 due to property damage and injuries.

As mentioned before, however, due to the Public Works Director overseeing the sewer infrastructure of the community, the power and authority to mitigate these damages in municipalities around country lies in their hands. By requiring pre and post cross bore inspections any time new utilities are installed, they can protect their citizens, infrastructure, and bottom line by spending a few thousand dollars for inspection and mitigation costs versus hundreds of thousands to millions of dollars for damage and repair costs. zero cost to their municipality. These requirements can not only help protect the local governments bottom line and infrastructure, but also can keep their reputation from tarnish within the local community.

Why You Should Contact GPRS For Your Cross Bore Inspection Needs

Cross bore mitigation is always our team’s biggest focus. – Andy Jurski, GPRS Senior Video Pipe Inspection Project Manager

While there are CCTV pipe inspection companies throughout the U.S., there is only one with Project Managers that are certified in both Subsurface Investigative Methodology (SIM) and National Association of Sewer Services Companies (NASSCO) specifications, and located in every major market throughout the United States.

GPRS’ nationwide team of Video Pipe Inspection Project Managers are equipped with the industry’s best training, technology, and methodology to give our customers the most accurate and comprehensive cross bore inspection services in the country.

Every one of our sewer inspection services is backed by our 99.8+% utility locating accuracy on over 500,000 projects completed. So you can be confident that your sewer lines will be accurately mapped and marked to give you the best above and below ground imagery of your existing lines.

All of this data is housed and delivered within our cutting-edge digital utility & infrastructure mapping platform, SiteMap® (Patent Pending) or you to interact with and access any time you need it. GPRS’ nationwide coverage provides you with services to support large scale cross bore inspection municipal projects ranging from large cities with hundreds of miles of sanitary and storm sewer lines such as Los Angeles, California, all the way to small rural communities with only a few miles of municipal sewer lines such as West Unity, Ohio.

A GPRS Project Manager lowers a sewer inspection rover into an open manhole.
GPRS Video Pipe Inspection Services help you prevent serious problems with your wastewater infrastructure such as cross bores.

With cross bore damage on the rise and no end to directional drilling in sight, it is critical to protect your municipalities underground infrastructure from the dangers of cross bores by contacting a GPRS VPI Project Manager, today.

Frequently Asked Questions

Why do I need a private utility locator before directional drilling?

https://www.gp-radar.com/article/why-you-need-private-utility-locating-before-directional-boring-or-drilling

Why is it important to do pre and post cross bore inspections?

https://www.gp-radar.com/article/the-importance-of-pre-post-cross-bore-inspection-when-directional-drilling-occurs

Who performs cross bore inspections near me?

https://www.gp-radar.com/insights/cross-bore-inspections

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About GPRS
Video Pipe Inspection

Distributed Asset Management for Regional or National Portfolios & Projects

Collaboration lies at the heart of successful portfolio management teams. SiteMap® Team fosters collaboration by enabling simultaneous access and real-time updates. Team members can work cohesively, share insights, and collectively strategize, driving efficiency and coherence in decision-making.

In today's data-centric world, the capacity to glean critical insights from multifaceted information sets us apart. This is true even in the world of sports, where game dynamics such as those in Major League Baseball are determined by data, collected through advanced systems encompassing cameras and extensive datasets. While our sphere of influence at GPRS may not extend to the baseball field, we play a pivotal role in industries heavily dependent on data and statistical analysis.

The launch of SiteMap® Team represents a landmark achievement in the visualization of facility data. More than just another addition to the suite of data visualization tools, it stands as a ground-breaking force set to redefine portfolio management practices. Our expertise may not lie in playing baseball, but when it comes to teamwork and data accuracy, we are in a league of our own.

Unveiling SiteMap® Team: The Next Frontier of Data Visualization

A GPRS Project Manager reviews a SiteMap project on a mobile device
A GPRS Project Manager reviews a SiteMap project on a mobile device

Designed by an eclectic group of forward-thinking technologists, data professionals, researchers, IT specialists, writers, and industry veterans, SiteMap® Team is much more than a mere tool—it's an all-encompassing digital environment devised to equip project managers tasked with overseeing dispersed assets. Its foundation is built upon an advanced conglomerate of state-of-the-art technologies, user-friendly design, and a deep-seated knowledge of portfolio management and the complexities of distributed asset management. SiteMap® simplifies collaboration by providing a straightforward, yet comprehensive platform, making it effortless for users to locate and disseminate their data.

Breaking Down the Innovation

Interactive Visualizations

SiteMap® Team transcends the limitations of traditional spreadsheets and static graphs. Its interactive visualizations provide a dynamic, holistic view of your portfolio data, allowing for seamless exploration and analysis of a single site or a distributed nationwide portfolio. Managers can delve deeper into data points, identify correlations, and make informed decisions in real time.

SiteMap® makes interacting with your data easy. Your facility and project data is available in one single location, is aggregated, layered, and completely searchable. With SiteMap® Team, you can empower your team by putting your key players on an administrative level, giving them the information they need and the power to use it. SiteMap® provides them with secure, accurate & aggregated data for sites across your portfolio so they can act with confidence and accountability.

Customizable & User-Friendly

Flexibility is key in portfolio management, and SiteMap® Team embraces this by offering customizable components. You can see what data you need to see when you need to see it. Strip away your data layer by layer, clicking on each subsurface finding to reveal greater details, such as the exact coordinates of each utility location. SiteMap® lets you customize how you interact with your site information, and how you share, see, and present it. With SiteMap® Team, you can easily read and organize your data in a way that makes sense for your team.

Collaborative Capabilities

Collaboration lies at the heart of successful portfolio management teams. SiteMap® Team fosters collaboration by enabling simultaneous access and real-time updates. Team members can work cohesively, share insights, and collectively strategize, driving efficiency and coherence in decision-making. Much like baseball, it takes a well-integrated and knowledgeable team to get the results you need most.

A GPRS Project manager in a vest and safety gear shows a group of construction workers how SiteMap software manages site data
SiteMap® streamlines communications & workflows to keep your team on the same page working toward the same goal

It was this style of collaboration that helped to plan and ensure the demolition of the Kingdome baseball stadium in Seattle, Washington. With great collaboration and technology similar to what is used by GPRS, scientists were able to use the demolition of the Kingdome, as well as ground penetrating radar to learn more about seismic activity in Seattle. This is just one example of what could be accomplished with exceptional collaboration and technology.

Seamless Integration

While SiteMap® contains its own intuitive GIS component, it can also easily integrate with your existing GIS software to provide an extra layer of safety and security for your data – powered by GPRS’ 99.8% accuracy rating across more than 500,000 jobs. This makes combining your data sources easier than ever, fostering teamwork and easy access to knowledge. SiteMap® makes using your data simple, requiring no extra training or knowledge. Seamlessly integrate between your sources, and make your project management efforts just as seamless.

The SiteMap® Team Advantage

When you use SiteMap® Team, you are assured of the best possible experience, backed by technology, amazing data, and a streamlined approach to project management. There are many aspects that make SiteMap® a powerhouse for project management.

Enhanced Efficiency

With streamlined data visualization and analysis, SiteMap® Team reduces the time spent on deciphering complex data sets. This efficiency allows portfolio managers to focus on strategic planning and proactive decision-making. Get things done faster, with greater understanding, backed by a level of detail and accuracy that only GPRS can provide.

Risk Mitigation

By offering a comprehensive, real-time view of distributed assets, SiteMap® Team enables proactive risk management. Identifying potential risks early on and responding swiftly becomes integral to maintaining a resilient portfolio. This is backed by the 99.8% accuracy rating of GPRS, which helps ensure that your data is up to date, accurate, and easy to read. The risks are far too great, and SiteMap® Team helps reduce those risks.

Strategic Agility

In today's dynamic markets, adaptability is key. SiteMap® Team equips managers with the agility to pivot strategies swiftly, aligning portfolios with evolving market conditions and stakeholder needs. SiteMap® Team allows you to access your data as you need. Critical data can be lost across outdated platforms, fragmented, inaccurate as-builts, and siloed institutional information. SiteMap® creates an aggregated, historical, single source of truth – with as builts, updated as often as you need for as many sites as you need – to eliminate data loss and the costly mistakes that come with it.

Embracing the Rise of Cutting-Edge Portfolio Management

SiteMap® Team is a game-changer in the realm of distributed asset portfolio management. This advanced tool marries state-of-the-art data visualization and limitless analytics with collaborative capabilities, taking portfolio management tools to the next level. Adopting SiteMap® Team isn't merely about leading the pack – it's about breaking new ground in optimizing portfolio performance.

SiteMap® Team makes teamwork effortlessly achievable with its robust data management solutions, presenting a single source of truth for everyone. You can share, tag, and safeguard your data, all without the usual challenges posed by other infrastructure management platforms.

As we explore the rapidly evolving domain of geospatial sciences and beneath-the-surface data, tools like SiteMap® Team act as the spark igniting innovation and change. The ability to visualize, scrutinize, and act upon data with an unparalleled level of accuracy not only reshapes portfolios but also revolutionizes our approach towards portfolio and project management.

In essence, SiteMap® Team is more than just a tool; it's a shift in perspective. It equips portfolio managers with the power to refine their strategies, mitigate risks, and boost returns in an increasingly competitive environment. As we embrace this exciting phase of data visualization, the horizon of portfolio management appears more vibrant and dynamic than ever. Simplify your portfolio management with SiteMap®.

Discover more about SiteMap® Team by getting in touch with us today.

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About GPRS
Mapping & Modeling
Utility Locating

How to Bridge the Construction-Technology Gap

Proactive risk identification and mitigation prevent costly delays and errors. SiteMap® empowers decision-makers to make informed choices, minimizing budget overruns and maximizing project profitability. In 2021, there were nearly 200,000 damages made to underground utilities during projects. The leading causes were: No notification to 811, Failure to pothole or maintain sufficient clearance, and improperly marked utilities...

1,015 deaths were reported in the U.S. construction industry in 2021 – the highest number of work-related fatalities in the nation.

Most of those thousand-plus deaths were due to mistakes. Specifically, human error.

In the complex and multi-dimensional field of construction, the value of data is paramount. The correct use of data significantly aids in risk mitigation, thereby decreasing the potential for disaster. Every stage, from project planning to execution, and maintenance, requires effective data management, analysis, and visualization. SiteMap® can bridge the information gap as the industry’s leading software platform, ready to bring about a transformative change in construction technology through its novel approach to infrastructure, facility, and construction data integration.

Why Is Construction Data So Complex?

Construction projects generate an immense volume of data, ranging from architectural designs and engineering plans to supply chain logistics and on-site progress tracking. Traditionally, this data has been fragmented and difficult to catalogue or manage, often leading to inefficiencies, delays, and budget overruns.

SiteMap®: Simplifying Infrastructure Data Dynamics

A GPRS Project Manager and a construction worker shake hands on a jobsite
SiteMap® (patent pending) puts the power of control in your hands.

SiteMap® transcends the conventional definitions of a Geographic Information System (GIS) platform. It is an all-encompassing above and below ground infrastructure solution designed to transform raw data into an easily comprehensible format for every team member. This innovative tool not only brings your data to life but does so in an advanced and intriguing manner, enabling a fresh perspective for data visualization, communication, and collaboration.

Unified Data Aggregation

SiteMap® serves as a centralized hub, aggregating diverse datasets from various sources, permitting that your subscription allows it. Whether it's blueprints, as builts, photographs, or other data types, SiteMap® consolidates this information, offering a comprehensive and holistic view of the project. Your data is layered, mapped, cross-referenced, and updated as needed to ensure accurate subsurface as builts. And while SiteMap® contains its own intuitive GIS component, it can also easily integrate with your existing GIS, permitting your subscription allows for this. This integration is powered by GPRS’ 99.8% accuracy rating across more than 500,000 jobs.

Real-Time Visualization

SiteMap® elevates the standard static portrayals to a whole new level. Its lively, intuitive visuals empower project stakeholders to monitor real-time progression, spot any hindrances, and anticipate possible challenges. With layered and interactive subsurface maps offering innovative perspectives on your data, and 3D models highlighting your above or below ground information in a fresh and exciting way, SiteMap® converts data into practical, visual insights. The clearer your understanding of your data, the more advantageous your position.

Streamlined Collaboration

SiteMap® fosters seamless collaboration among project teams, contractors, architects, and stakeholders. Its shared platform enables transparent communication, ensuring everyone is on the same page, thereby reducing misunderstandings and enhancing productivity. This is crucial for construction, where one wrong move, even by a fraction of an inch, could effectively take out half a neighborhood. This happens more often than you’d believe. In the U.S., 192,745 unique damages to underground utilities were reported in 2021.

Impact on Construction Practices

Enhanced Efficiency

By streamlining data management and visualization, SiteMap® reduces time spent on manual data processing. This efficiency translates into streamlined workflows and optimized resource allocation. The more efficiently a project runs, the better the outcome. By increasing efficiency, you’re increasing the likelihood of safety and success.

Cost Savings

Proactive risk identification and mitigation prevent costly delays and errors. SiteMap® empowers decision-makers to make informed choices, minimizing budget overruns and maximizing project profitability. In 2021, there were nearly 200,000 damages made to underground utilities during projects. The leading causes were:

  • No notification to 811
  • Failure to pothole and/or maintain sufficient clearance
  • Utilities not properly marked

By using a service like GPRS, at least half of those could have been prevented. Accurate data means less costs, and less damage.

Advancement Solutions

Leveraging an innovative platform like SiteMap® empowers construction managers to eliminate uncertainty from their worksites.

Wondering if there are pipes beneath that new highway, or if any elements need to be identified or moved? Doubting the age and accuracy of your maps? The construction field is fraught with variables, and even the most comprehensive data may be flawed. However, GPRS boasts a nationwide accuracy rating of 99.8% in utility locating and concrete imaging, providing construction managers and their teams with the best possibility for swift and safe project delivery.

Absent the groundbreaking tools and technologies employed by GPRS, construction practices might stagnate, resulting in a deteriorating infrastructure that can't keep up with the demands of the modern world. Thanks to SiteMap®, you gain more than a window into the subsurface world—it's a tool that helps you shape and improve the world above.

Finding a New, Easier Way Forward

SiteMap® simplifies your data, making it readily interpretable, searchable, and sharable.

Adopting an infrastructure data platform arms your construction managers with the tools to excel. It merges cutting-edge construction technologies and methodologies with top-tier scientific knowledge.

The threat of utility strikes is an ever-present reality, impacting countless construction ventures annually. According to the 2022 DIRT report, the incidence of utility strikes is on the rise. A three-year model from 2020-2022 reveals a 12.35% increase in damages per construction spending, and a 9.34% rise in damages per 1,000 transmissions from 2021 to 2022.

One of the principal causes of utility strikes - flawed subsurface data - can be largely circumvented with services like GPRS and a platform such as SiteMap®. Uniting the best of the worlds of risk mitigation, damage prevention, and data management, GPRS ensures safety, accuracy, and progress that surpasses expectations. SiteMap® facilitates construction and project managers in accessing and disseminating their data across their teams.

The data is presented in a manner that doesn't warrant any additional expertise to comprehend and can be easily accessed through SiteMap's Map Viewer. From registration to wrap-up, SiteMap® simplifies subsurface awareness. As the construction sector evolves, the adoption of data-driven solutions becomes critical. GPRS is pioneering this change via SiteMap®, transforming how construction projects are managed and delivered.

By seamlessly merging data and intelligence, it's not just revolutionizing construction technology—it's laying the groundwork for a more effective, productive, and innovative construction environment. A future where success overshadows disaster.

Discover the potential of SiteMap® for your next project - get in touch with us today.

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About GPRS
Mapping & Modeling

GPRS Scans Concrete for Light Installation on Hoan Bridge

GPRS is proud to have helped breathe new life into a Milwaukee landmark, providing precision concrete scanning services to ensure that the intricate lighting system could be safely installed along the 47-year-old Daniel W. Hoan Bridge.
Daniel W. Hoan Memorial Bridge illuminated with red, white and blue lights.
Since October 22, 2020, the Daniel W. Hoan Memorial Bridge has illuminated the night sky with its multicolor light show. GPRS is proud to have provided precision concrete scanning services to ensure that the intricate lighting system could be safely installed.

When the sun goes down along the Milwaukee River, the lights along the west side of the Daniel W. Hoan Memorial Bridge burst into life.

Since October 22, 2020, the Wisconsin landmark has illuminated the night sky with its multicolor light show. The colors and patterns of the lights are never the same from one evening to another, as everything from sports teams to nonprofit organizations are celebrated.

GPRS is proud to have helped breathe new life into this Milwaukee landmark, providing precision concrete scanning services to ensure that the intricate lighting system could be safely installed along the 47-year-old bridge.

“It was a very cool thing to be a part of,” said GPRS Project Manager Chase Loppnow. “Whenever you’re driving downtown, and you see the bridge lit up in different colors for something to do with the city… It was something very cool to be a part of.”

Loppnow was part of a GPRS team that also included Project Manager Alex Kleinschmidt and Area Manager Paul Mandella, who spent roughly two weeks conducting ground penetrating radar (GPR) scans along the 607-foot, tied-arch bridge to ensure that the lights could be installed safely and without causing structural damage to the bridge.

A worker scans the side of a bridge with ground penetrating radar.
GPRS conducted ground penetrating radar scans every 18 inches along the side of the Daniel W. Hoan Memorial Bridge in preparation for the installation of a lighting system.

Strapped into safety harnesses, the team conducted scans every 18 inches along the side of the bridge where the lights were to be installed to ensure the new infrastructure would not clash with existing electrical conduit running through the structure.

Protecting the existing conduit was vital, as a utility strike during installation of the lights could have shut down the bridge for an extended time. And nobody wants to be responsible for closing a bridge that carries tens of thousands of cars a day into a major city.

“There was already electrical conduit running through the bridge, and they had to install anchors for the lights,” Loppnow said. “So, when they were drilling, they didn’t want to hit those systems.”

Originally known as the Harbor Bridge, the Daniel W. Hoan Memorial Bridge connects Interstate 794 in downtown Milwaukee to the Lake Freeway across the Milwaukee River inlet. It’s named for Daniel Webster Hoan, who served as mayor of Milwaukee from 1916 to 1940.

The bridge itself underwent a complete structural overhaul that was completed in late 2016. Then, in May 2018, a private, non-profit campaign dubbed “Light the Hoan Bridge” sought to install a lighting system along the bridge with the goal of offering “a platform for building awareness and improving community pride.”

The project was completed, and the bridge officially lit for the first time on October 22, 2020. A fundraising initiative is currently underway to illuminate the east side of the bridge.

A worker scans the side of the Daniel W. Hoan Memorial Bridge with ground penetrating radar.
GPRS Concrete Scanning Services ensure your project can stay on schedule, your budget remains intact, and your people remain safe.

GPRS has since returned to the Hoan Bridge to conduct further concrete scans as ongoing maintenance and upkeep has occurred on the nearly 50-year-old structure. Mandella says that his time working on the bridge to help install the lights was “a unique project that will be on the top of the list for a long time.”

“When driving past at night, seeing the lights, it’s cool to think I was a part of it,” Mandella said.

How GPRS Scans Concrete

GPRS Project Managers use ground penetrating radar (GPR) scanners and electromagnetic (EM) locators to locate utilities, post-tension cable, rebar, and other infrastructure within concrete slabs.

GPR is a non-destructive detection and imaging method which uses radio waves to “see” underground or within a concrete slab. The waves react with anything they encounter – both metallic and non-metallic objects – to create a series of hyperbolas on the GPR’s display or a wirelessly connected tablet. GPRS Project Managers undergo industry-leading training and certification to be able to interpret those readings to tell you what was found and precisely where those objects are located.

EM locators work in concert with GPR to detect electromagnetic signals running through underground utilities. They can also emit their own signal through a known line to determine the direction it runs through your jobsite.

By using GPR and EM locating technology together, GPRS Project Managers can fully visualize your project area. We have achieved and maintain a 99.8% accuracy rating on the over 500,000 utility locating and concrete scanning jobs we’ve completed in our 23-year history.

To support our confidence in our Project Managers, we introduced the Green Box Guarantee. When we place a Green Box within a concrete layout prior to you cutting or coring that slab, we guarantee that area will be free of subsurface obstructions.

If we’re wrong, we agree to pay the material cost of any damage.

Keep Your Workers Safe

At GPRS, your company’s safety is our primary focus.

We know risk mitigation is one of your top priorities, which is why, since 2018, we’ve sponsored Concrete Sawing & Drilling Safety Week.

From January 29-February 2, 2024, our safety experts will travel the country visiting jobsites to offer complimentary presentations about the top risks to your workers and the ways these risks can be mitigated.

We’ll discuss the dangers of silica exposure, the hazards to avoid when sawing, cutting, or drilling concrete, and the importance of having a personal safety plan.

To date, we’ve educated over 20,000 construction professionals through CSDSW. In 2023 alone, over 150 companies proved their dedication to the safety of their workers by hosting CSDSW talks at their offices or jobsites.

There’s still time to sign your team up for their free CSDSW presentation. Click the link below to schedule your presentation today!

Frequently Asked Questions

How does concrete scanning work?

Concrete scanning involves using a non-destructive imaging technology like ground penetrating radar to visualize the subsurface infrastructure inside a concrete slab, including conduit, post-tension cable, and rebar. GPR scanners emit radio waves into the concrete, and those waves interact with anything they encounter. Those interactions are displayed as hyperbolas on a GPR reading, and a qualified technician can interpret that reading to tell you what was found and exactly where it is located.

Can GPR find voids in concrete?

GPR equipment can identify areas where voids could possibly be occurring, and the boundaries of that potential void. It cannot measure the void’s depth.

Why scan concrete before cutting or coring?

Because severing structural components such as post-tension cable or rebar or slicing through electrical conduit or other utilities can have costly and potentially dangerous repercussions.

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About GPRS

GPRS IN THE NEWS – Dave Mulcahey Talks Concrete Safety on the Concrete Logic Podcast

Dave Mulcahey, GPRS Sales Director, Western U.S., recently spoke with Seth Tandett of Baker Concrete Construction on the Concrete Logic podcast to discuss the importance of utilizing best practices when cutting, coring, and working with concrete on the job.
“You call these folks when you’re in trouble” - Seth Tandett, Concrete Logic Podcast

Dave Mulcahey, GPRS Sales Director, Western U.S., recently spoke with Seth Tandett on the Concrete Logic podcast to discuss the importance of utilizing best practices when cutting, coring, and working with concrete on the job.

Title Card for Concrete Logic Episode 72 Enhancing Concrete Sawing & Drilling Safely
You can watch the podcast by clicking the above image

While Mulcahey was there to promote the upcoming national Concrete Sawing & Drilling Safety Week (CSDSW), which GPRS sponsors and provides complimentary safety training for on jobsites across the country, the discussion quickly turned to when construction professionals usually call GPRS for their projects, the advancements in concrete scanning & safety technology, and its future in adaptive reuse construction.

“My experience with GPRS is that you call these folks when you’re in trouble – when you forgot to do something,” said Tandett, who works for Baker Concrete Construction and is based in Richmond, Virginia.

“Like you forgot to leave an opening… and it’s got to be there. There’s no getting around it. You’ve checked with your architect, your structural engineer, the mechanical engineer, and say, ‘Hey, we forgot to do this box-out. Is there another way?’ and they say no. So, you’ve got to go in there and cut it, and that’s when you call the GPRS folks.”

Mulcahey acknowledged that GPRS Project Managers are used to receiving the “Oh no! calls,” where they help customers find embedments and fix problems, but also offered that, “We are seeing far more customers get ahead of it. Where, once they pour the deck and before they even plan on where the holes are going to punch, they’ll have us come out and scan, and create an entire Revit BIM model of that space.”

Dave Mulcahey, wearng a GPRS jacket, speaks on the Concrete Logic Podcast
GPRS Sales Director, Western U.S., Dave Mulcahey, spoke with Baker Concrete Construction’s Seth Tandett on the importance of concrete sawing & drilling safety on the Concrete Logic Podcast

He described the process from ground penetrating radar concrete scan, to mark-out, to 3D photogrammetry or 3D laser scan to BIM model, and discussed the level of detail GPRS Mapping & Modeling Services are able to provide. “We give you a model that’s three-dimensional – here’s where the post-tension cables are running, here’s a bundle of three, this is where it’s dipping up and down throughout the deck, this is where it’s waving back and forth… So you can plan all of your cores and your punches.”

“Everything concrete starts in Ohio,” podcast host Tandett stated, and where GPRS is concerned, he’s correct. The company that began in the trunk of President & CEO Matt Aston’s car, moved into its new 66,000 square foot corporate headquarters in Maumee, just outside of Toledo, Ohio, in June of 2023. GPRS employs over 800 people nationwide – 500 of those are Project Managers in the field – stationed in every major U.S. market, giving the company an unprecedented nationwide footprint and the ability to be on most jobsites within 24 hours.

Everything GPRS does on the jobsite is designed to clearly communicate the safest places to cut, core, or excavate. In the case of concrete scanning, GPRS Project Managers maintain a 99.8% accuracy rate, and the company guarantees it with their industry-leading Green Box Guarantee.

GPRS’ mission is to Intelligently Visualize The Built World® for its clients to keep jobs on time, on budget, and safe. Register for your complimentary Concrete Sawing & Drilling Safety Week talk below.

Frequently Asked Questions

What are some common safety hazards associated with cutting and coring concrete?

Pinch points, kickbacks, silica dust exposure, and slips, trips and falls when working around wet concrete sawing or drilling tools are some of the major risks to workers on jobsites. You can learn more about some of those risks, here.

What are some essential safety equipment and tools that should be used during concrete cutting and coring?

Wet saws, HEPA filter devices, and proper PPE are required if silica dust exposure levels exceed safe OSHA standards. Learn more about best practices for concrete cutting and coring, here.

How can workers protect themselves from inhaling hazardous dust particles generated during the cutting and coring process?

Silicosis is a deadly, incurable condition that affects thousands of construction workers who have inhaled respirable crystalline silica (RCS), also known as silica dust. You can read more about how to protect yourself from silicosis, here.

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About GPRS
Concrete Scanning
Green Box Guarantee

GPRS Founder’s Experience Foundation of Industry-Leading Concrete Scanning Services

GPRS President & CEO Matt Aston saw with his own eyes the consequences of sawing or coring concrete without knowing what’s inside. His experience as a young man inspired him to build a career around protecting workers from the risks of subsurface damage.

Matt Aston saw sparks fly, and then everything stopped.

Aston was in his early 20s, home from college for the summer and working for his father’s concrete cutting company. He was assisting a crew working inside a grocery store, where they were trenching down the center of the freezer aisle to install new coolant lines.

“We got probably five or six feet in, and sparks fly, the saw shuts off and lights go off,” Aston recalled. “Everything in the store goes dark. It’s 12:30, 1 in the morning because all the work has to be done at night. I look at the guy [operating the saw] and go, ‘what happened?’ He said, ‘we just cut through the power. We’re done for tonight.’”

Aston listened as the concrete cutter called his superintendent, who wanted to know how the electrical conduit had been severed.

It turned out that the line was not where as-built documents indicated it should be. In fact, it was running right down the center of the marked path for the trench.

It can cost thousands of dollars to repair wire and conduit that’s been severed during concrete sawing or coring. You’ll lose more money during the downtime while repairs are completed.

The budget hit is secondary to the safety risk of severing a live power line. Aston and his father’s employee were lucky to have avoided electrocution.

Years later, when he stumbled across an advertisement for ground penetrating radar (GPR) in a magazine and read how the technology was being adapted to locate utilities, rebar, and structural supports buried within or underneath concrete, Aston remembered this incident from his college days.

“I went back to that specific job and thought, ‘OK, if they would have used this [ground penetrating radar] on that job, laid out the electrical prior to saw cutting taking place, that whole incident is avoided,” he said.

Aston saw with his own eyes the consequences of sawing or coring concrete without knowing what’s inside. His experience as a young man inspired him to build a career around protecting workers from the risks of subsurface damage.

GPRS Project Managers have maintained over a 99.8% accuracy rate on 500,000 utility locating and concrete scanning & imaging jobs we have completed since Matt founded the company in 2001.

That unparalleled level of accuracy is born out of our desire to eliminate subsurface damage, which in turn helps ensure the success of your project and the safety of your workers.

A GPRS Project Manager reads the results of a GPR scan.
GPRS Project Managers have achieved and maintain a 99.8%+ accuracy rating on over 500,000 utility locating and concrete scanning projects completed since the company's founding in 2001.

How GPRS Scans Concrete with Unparalleled Accuracy

The foundation for our precision concrete scanning services is the Subsurface Investigation Methodology, or SIM.

SIM is the industry-leading process for conducting utility locates, concrete scans, leak detections, and video (CCTV) pipe inspections. It’s comprised of three elements:

  1. Equipment: The SIM standard specifies that a professional locating contractor must utilize multiple locating technologies, including GPR and electromagnetic (EM) locators, to create redundant confirmation of results when conducting a subsurface investigation.
  2. Training: All GPRS Project Managers must achieve SIM certification, which means completing a minimum of 320 hours of field training and 80 hours of classroom education, during which they are challenged with real-world scenarios that prepare them for anything they may encounter in the field. This level of training far exceeds the national standard for certification (ASNT SNT-TC-1A), which states that a minimum of 60 hours of practical application coaching and 8 hours of classroom training must be completed for a utility locating or concrete scanning specialist to achieve NDT Level 1 certification.
  3. Methodology: SIM addresses a step-by-step approach to collecting subsurface data to ensure that the results are repeatable and accurate. SIM practitioners must follow a checklist that is designed to ensure optimal results for every situation encountered in the field.

While GPRS’ concrete scanning services are underpinned by SIM, what separates the excellence of GPRS Project Managers from the rest of the industry is their ability to tailor our services to meet your needs. We call this The GPRS Difference.

Our Project Managers don’t just scan where you point and leave; they will collaborate with you to ensure the success of your project.

Whether you need us to work in the middle of the night to avoid interrupting patrons, or adjust the way in which we deliver our findings to you, we promise to give you the accurate, actionable information you need to stay on time, on budget, and safe.

We Guarantee Our Work

Saying you’re the most accurate concrete scanning company out there is one thing; proving it is another.

We’re so confident in our Project Managers’ abilities that we created the Green Box Guarantee, which states that when we place a Green Box within a concrete layout prior to you cutting or coring that slab, we guarantee that the area within that Green Box will be free of obstructions.

If we’re wrong, we’ll pay the material cost of any damage that occurs.

From skyscrapers to sewer lines, GPRS Intelligently Visualizes The Built World® to keep your projects on time and on budget, and your people safe.

What can we help you visualize? Click below to schedule a service or request a quote today!

Frequently Asked Questions

How long does it take to scan concrete with GPR?

Utilizing our state-of-the-art ground penetrating radar scanners, GPRS Project Managers can scan large areas quickly. Our standard layout for a typical core drilling location is 2’x2’. It usually takes about 10 minutes to scan and mark an area this size.

How deep inside concrete can GPR scan?

For concrete scanning, GPR can penetrate depths of 18’-24”.

Why is it important to scan concrete before drilling or sawing the slab?

Because subsurface damage can be both costly to repair and hazardous to the health and safety of your workers and anyone in the surrounding area. By knowing where all subsurface items are located within a concrete slab prior to penetrating that slab, you ensure the success of your project and the safety of your workers.

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About GPRS
Concrete Scanning
Ground Penetrating Radar
Green Box Guarantee

training manuals

Utility Locating: Electromagnetic Locating
View Manual
Ground Penetrating Radar: Rebar Slabs
View Manual
Ground Penetrating Radar: Dielectrics
View Manual
Concrete Scanning – Slab-On-Grade
View Manual
Ribbed Slab Construction: Slab Type – Ribbed and Waffle
View Manual
Understanding Decking from a Concrete Scanning Perspective
View Manual
Understanding Decking from a Concrete Scanning Perspective - Hollow Core
View Manual