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"He would be dead. Absolutely. It tears me up a little bit. I don't mean to be overly dramatic, but one more second, and he could have been dead. It terrified me." – Kristin Carboni

Even when everyone on a project does everything right, relying on existing plans of buried utilities when excavating can have disastrous consequences.

That was the case recently in Massachusetts, where incomplete and inaccurate records of a buried, high voltage electric line nearly cost a couple their lives.

This is according to a recent report by NBC Boston, which detailed how Kristin Carboni and her husband came within centimeters of striking the underground utility while installing a fence at their business. The Carbonis own and operate a dog boarding and training business on their wooded property on Cape Cod. They were looking to add an agility course to the property and needed to install a fence around the course.

Before beginning excavation to install the fence, the couple contacted their regional 811 One Call Center, Dig Safe.

811 is the national, non-profit notification service that acts as a link between excavators and contractors, and participating member utility companies. Federal law requires that 811 be notified of upcoming excavation projects, so they can in turn notify the utility companies who send representatives to the site to mark their utilities with flags or paint.

Kristin Carboni told NBC Boston that she and her husband “thought we were good to go,” adding that they “got the ‘all clear’ from four different companies.”

But while Carboni’s husband was digging holes for the fence posts with a heavy auger, Carboni – who was standing nearby – heard a strange noise and screamed at him to stop.

“He pulled up the auger and there was a huge conduit that came out of the ground,” she said.

The auger had pierced through the conduit protecting the high-voltage electric line. It would have damaged the line itself, likely electrocuting Carboni’s husband, had she not stopped him when she heard the strange noise.

"He would be dead. Absolutely," Carboni said. "It tears me up a little bit. I don't mean to be overly dramatic, but one more second, and he could have been dead. It terrified me."

NBC Boston contacted Eversource, an energy company that provides electricity, natural gas, and water services in Connecticut, Massachusetts, and New Hampshire, who provided the news channel with the following statement:

“Following a thorough investigation into the incident, we confirmed that the original records from the installation of the underground electric service by a private contractor did not indicate that the cable extended onto private property, which is why it was not marked by our subcontractor. Following this event, we promptly repaired the damaged plastic conduit and updated the mapping for the area to reflect the underground electric service more accurately.

This incident underscores the importance of our company-wide safety initiative, which involves reviewing and updating older records, enhancing our Geographic Information System (GIS), and refining our mark out procedures to strengthen safety and improve the accuracy of locating and marking underground infrastructure.

With safety always our top priority, we strongly recommend that homeowners and contractors, regardless of ground markings, carefully expose and verify underground areas using a shovel before beginning any excavation.”

Massachusetts’ Dig Safe laws, which were strengthened following the September 2018 Merrimack Valley gas explosions, require anyone who knows of damage to file a report, whether they’re a utility worker, contractor, or homeowner. The Carbonis reportedly received a warning letter in the mail for not reporting the incident on their property.

Eversource received a violation notice for what occurred on the Carbonis’ property. According to the Massachusetts Department of Public Utilities (DPU) records, there have been roughly 350 violations assessed to utility companies in the past year, which result in millions of dollars in outstanding fines.

Jennifer Cabrera, who manages the pipeline safety division for the Massachusetts DPU, which oversees the state’s Dig Safe laws, said the approach is meant to educate the public and likened it to a car crash, where police or insurance companies want to hear from everyone involved.

"If we are not informed of the information, then we don't know what caused it and how to prevent it for the next excavator," she said.

It’s important to remember that utility companies are not responsible for marking out private lines on a property they visit, only their own utilities.

Carboni told the news station that she wants what happened to her and her husband to serve as a lesson for the public.

"… I feel very blessed and grateful that we didn't die," she said. "And the fact that we didn't die means it's my job to educate people so that nothing like this ever happens again."

Even when everyone on a project does everything right, relying on existing plans of buried utilities when excavating can have disastrous consequences.

While you should always contact your local 811 One Call Center prior to digging, you should also hire a professional private utility locating company to locate and map all buried utilities in your intended dig area before you put a shovel or bucket in the ground.

GPRS is the nation’s largest private utility locator. We’ve achieved and maintain a 99.8%+ accuracy rate when locating buried utilities. Utilizing ground penetrating radar (GPR) scanners and electromagnetic (EM) locators, our SIM-certified Project Managers collect the accurate, complete data you need to stay on time, on budget, and safe. And this information is always at you and your team’s fingertips thanks to SiteMap^® (patent pending), our facility & project management application that provides existing conditions documentation to protect your assets and people.

What can we help you visualize?

Frequently Asked Questions

Can GPRS locate PVC Piping and other non-conductive utilities?

GPR scanning is exceptionally effective at locating all types of subsurface materials. There are times when PVC pipes do not provide an adequate signal to ground penetrating radar equipment and can’t be properly located by traditional methods. However, GPRS Project Managers are expertly trained at multiple methods of utility locating.

Will I need to mark out the utilities that 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.

Chicago-based Hecate Energy has awarded the design and build contract for its Sunfish Solar 2 farm in Michigan to Virginia general contractor Bechtel. When completed, the 1,300-acre solar installation will provide enough energy to power 183,500 homes and offset approximately 1.5 million tons of annual carbon dioxide emissions. Offsetting 1.5 million tons of CO2 has the same environmental impact as removing 300,000 gas-powered cars from Michigan’s roadways.

“We are delighted to partner with Bechtel on Sunfish Solar 2. Bechtel brings more than 80-years of experience in delivering renewable energy projects and shares our commitment to a cleaner, greener future and long-term benefits for electricity consumers.” – Fazli Qadir, Hecate Energy Chief Technology Officer and Executive Vice President of Engineering, Procurement, and Construction.

And according to Hecate and utility partner, Consumers Energy, it’s just the beginning.

Hecate says Sunfish 2 is the next step in its plan to develop 1GW of solar energy in Calhoun County. Phase 2 of the solar farm is expected to produce as much as 309MW and will be “one of the largest solar facilities in the state, playing a crucial role in supporting Michigan’s commitment to generate 50% of its energy from renewable resources by 2030.”

According to a statement by Bechtel, construction began in the last quarter of 2024 and is scheduled to complete in 2026, including the installation of 620 bifacial solar panels. Additional reporting by Construction Dive and others state that the solar farm should be online by the end of 2025.

“Bechtel will utilize its award-winning digital delivery approach to design, construct, and commission the facility, leveraging autonomous technologies to enhance project delivery.” – Bechtel

350 construction workers are expected to be employed at the site, “providing a boost to the local economy and workforce development in the region.” The region – Calhoun County – is located in the center of Michigan’s “mitten,” between Detroit and Lake Michigan, and is home to Battle Creek, known as “Cereal City” because both The Kellogg and Post Corporations have their headquarters there.  

Hecate Energy’s project information states that the entire Sunfish Solar Farm (Phases 1 and 2) is expected to generate a combined 1GW of grid-connected energy over 6,000 acres of “non-contiguous areas,” and provide increased power supply, electrical system reliability, and numerous financial and tax benefits for Calhoun County residents.

What Are Bifacial Solar Panels & How Do They Work?

Bifacial Solar Panels, also known as modules, advance and enhance solar energy production by providing double the surface area for energy generation. Instead of the traditional monofacial panels with an opaque backsheet, bifacial panels have a clear backsheet to expose both the front and back of each solar cell. When installed over a highly reflective surface, usually white or very light-colored to “bounce” light, bifacial solar panels can generate an additional 30% or more in energy by collecting the sunlight bouncing off the ground surface.

Some dual-glass, frameless panels claim to be bifacial, but unless they include contacts (busbars) on both sides of the cell, they are not truly bifacial. Typically, bifacial panels need to be installed on a tiled racking system or a ground solar mounting system that is specific to bifacial modules to maximize the panel’s tilt. The more the panel is tilted, the more opportunity for additional energy production from the bounced light.

What is the Importance of “Grid-Connected” Solar Energy?

As renewable energy production continues to expand globally and in the U.S., one of the biggest challenges power generation and distribution companies must address is integrating their electricity into the power grid. The existing electrical power grid in the U.S. was designed to accommodate fossil fuel production, which presents multiple hurdles for large-scale renewable energy providers from both geographic and grid stability points of view.

According to the U.S. Department of Energy,

“A grid-connected system allows you to power your home or small business with renewable energy during those periods (daily as well as seasonally) when the sun is shining, the water is running, or the wind is blowing. Any excess electricity you produce is fed back into the grid. When renewable resources are unavailable, electricity from the grid supplies your needs, eliminating the expense of electricity storage devices like batteries.

In addition, power providers (i.e., electric utilities) in most states allow net metering, an arrangement where the excess electricity generated by grid-connected renewable energy systems ‘turns back’ your electricity meter as it is fed back into the grid. If you use more electricity than your system feeds into the grid during a given month, you pay your power provider only for the difference between what you used and what you produced.”

Bechtel’s Expanding Solar Market

Bechtel is expanding its work in solar and renewable energy sources. Its Cutlass Solar project received Esri’s Special Achievement in GIS Award in 2023 for its “integrated engineering, procurement, and construction (EPC) philosophy to utility-scale solar farm projects.” November 2024 reports also show the general contractor is collaborating with Rio Tinto for the design and construction of the Copperton Phase 2 solar facility that will support Rio Tinto’s Kennecott mine in Utah.

How GPRS Ensures Safe Solar Farm Construction

Installing a solar or wind farm requires a significant amount of land (i.e. the 6,000 acres required for Sunfish), and before a bucket hits the ground, it is vital to know the exact location of every underground utility – to avoid accidental line strikes and to be certain the project’s planned footprint positions it for optimal grid integration and transmission.

That’s why before installing any renewable generation or transmission facility, it is important to hire a professional subsurface utility locating service that can accurately locate and map all buried facilities to provide up-to-date existing conditions information. GPRS’ nationwide team of Project Managers provides rapid response service in all 50 states, and maintains a 99.8% accuracy rate for public and private utility mapping. Further, GPRS can capture and integrate above and below-ground as-builts to give customers a complete picture of their site to avoid clashes, rework, and dangerous utility strikes.

That’s why we say we Intelligently Visualize The Built World® for clients nationwide. What can we help you visualize?

Frequently Asked Questions

How does GPRS maintain its 99.8% accuracy rate for utility locating & mapping? 

GPRS' insistence on certifying all Project Managers in Subsurface Investigation Methodology (SIM) ensures that any GPRS team member on site has undergone rigorous training to master subsurface utility locating. This standardized expertise in equipment usage, interpretation of signals, and safety protocols minimizes errors, improving the reliability of data collection and analysis. This rigorous approach directly contributes to GPRS maintaining a 99.8% accuracy rate, as certified professionals consistently deliver precise, high-quality results in complex utility locating & mapping projects.

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Mitigating the damage caused by wildfires is vital to maintaining a functional utility infrastructure. Nowhere is that more evident than in California, which has seen a consistent increase in destructive wildfire incidents over the last three decades. That’s why Pacific Gas & Electric (PG&E) has been dedicated to hardening their powerlines since 2021, and plans to continue the practice in California’s most at-risk areas to eventually bury some 1,600 miles of lines by 2026.

What is the Wildfire Risk in California?

The top 20 most destructive California wildfires as catalogued by CAL FIRE in March of 2024 show that just two fires – the rekindling of the Oakland Hills Tunnel fire in Alameda County and The Jones fire in Shasta County – occurred prior to 2020 (in 1991 and 1999, respectively). Among the remaining 18 most destructive blazes in the list, there were two in 2003, one in 2007, two in 2015, three in 2017, three in 2018, five in 2020, and one in 2021, and those are just among the most destructive.

In the period from 2017 to 2021 experts estimate that the state lost $117.4 billion in revenue due to wildfire destruction and the response required to mitigate those fires.

On average, Californians see 1.28 million acres of land consumed by 7,239 wildfires annually, and CAL FIRE reports they’ve already responded to 7,668 wildfires in 2024 alone.

By comparison, the state of Washington experiences about 900 wildland fires annually, consuming approximately 429,000 acres each year. So, it is easy to see why utility providers like PG&E are taking steps to protect the vital utility infrastructure of the nation’s largest state, and the world’s eighth largest economy.

What is PG&E’s Utility Hardening Plan?

PG&E’s Vice President of Undergrounding and System Hardening Matt Pender told Underground Infrastructure that, “Undergrounding powerlines is a key layer of protection in our strategy to reduce wildfire risk and improve reliability for our customers. Reaching this milestone [of 800 miles hardened] is a testament to our commitment to our hometowns and our continued focus on delivering safe and reliable electricity.”

The utility giant that serves 16 million customers in northern and central California is focusing its utility hardening efforts in Spring Valley in Lake County, Vacaville in Solano County, and Pine Grove in Amador County. So far in 2024, they’ve buried more than 187 miles of lines, with a goal of 250 miles total by the end of the year. The announcement of hitting the 800-mile mark for undergrounding celebrates that PG&E has hit the halfway point of its wildfire utility risk mitigation work. The end goal is to bury 1,600 miles of powerlines by the end of 2026.

What is Utility Hardening?

Utility hardening, also sometimes called grid hardening is the practice of undergrounding or burying utility lines to protect them from the weather, fires, and other threats. By burying utilities underground, it protects individual lines and the power grid as a whole from unnecessary risk. Spikes in both extreme weather events and wildfires are leading more communities to embrace utility hardening as a standard practice. Several Miami-Dade, Florida neighborhoods recently announced they would be undergrounding their utilities to combat hurricane and flooding risks.

Not only does undergrounding utilities safeguard against outages, it creates a more peaceful and unobstructed landscape, and has long been the practice in areas like Denver, Colorado and others.  

With the practice gaining popularity nationwide, it becomes essential for municipal, utility, and facility managers to have accurate, up-to-date subsurface utility maps to ensure service continuity when installing new lines, excavating, or utilizing trenchless technology to lay fiber optic telecommunication infrastructure.

Utility hardening is not the only risk mitigation strategy PG&E is taking to protect utilities, however. Their other utility infrastructure safety measures include:

• Strengthening their infrastructure in high-risk fire areas

• Utilizing Enhanced Powerline Safety Settings (EPSS) to reduce reportable ignitions by 72%

• Managing vegetation growth near aboveground utility lines

• Tracking weather conditions via 1,500 weather stations and 600 HD cameras

• Employing drones and AI technologies to aid in fire detection

GPRS is the nation’s largest company offering above and below-ground existing conditions documentation. We Intelligently Visualize The Built World® for companies in all 50 states. What can we help you visualize?

Frequently Asked Questions

How Does GPRS Map Underground Utilities and Are They Accurate?

GPRS employs advanced technologies such as Ground Penetrating Radar (GPR) and Electromagnetic (EM) locating to map underground utilities. These methods enable the detection and mapping of subsurface utilities with high accuracy, consistently maintaining 99.8% accurate results for clients.

How Can I Get an Accurate Map of My Subsurface Utilities?

To obtain an accurate map of your subsurface utilities, you need to hire a utility locating company near you, like GPRS. However, most utility locating companies do not provide a map of your utility infrastructure. GPRS’ national team of Project Managers can assess your site and provide detailed mapping of underground utilities, facilitating safe and efficient project planning. Our findings are digitized, geolocated using GPS and RTK technology, and delivered via SiteMap®. Every GPRS customer receives a complimentary SiteMap® Personal Subscription.

Does GPRS Do 811 Locates?

GPRS offers private utility locating services, and does locate both public and private utility lines. However, GPRS is not a substitute for the 811 One Call system. 811 is a federally mandated service that you are required to call before digging to locate public utilities. GPRS identifies and maps both public and private utilities for architects, engineers, commercial construction, and related industries, providing comprehensive subsurface utility mapping beyond the scope of 811 services.

The frequency of job-related injuries and illnesses among construction workers declined in 2023, yet the total number of incidents on worksites rose, according to new data recently released by the Bureau of Labor Statistics.

This nuanced trend provides an opportunity to delve deeper into the state of construction safety and what it means for the industry's future.

The BLS Report: Key Findings

The BLS report for 2023 reveals two significant trends:

1. Incidence Rate Decline: The incidence rate for nonfatal injuries and illnesses in construction fell to its lowest recorded level, aligning with a broader decrease across private industry. The rate dropped to 2.4 cases per 100 full-time equivalent (FTE) workers from 2.7 in 2022. This metric measures how often incidents occur relative to the workforce size.
2. Increase in Absolute Numbers: Despite the decline in the rate, the raw number of injury and illness cases increased in construction. This seemingly contradictory outcome arises from a growing construction workforce.

These findings indicate that although construction sites are becoming safer per capita, the sector's expansion has resulted in a greater overall number of incidents.

Construction Safety Progress: Why Rates Are Improving

The improvement in incidence rates is an encouraging sign, reflecting efforts across the industry to enhance workplace safety. Several factors contribute to this positive development:

1. Better Safety Training: Construction companies have increasingly invested in comprehensive safety training programs. These programs educate workers on hazard identification, safe operating procedures, and emergency response protocols. Training tailored to specific roles and tasks empowers workers to perform their duties more safely.
2. Advanced Technology: Technological advancements have transformed construction safety. Wearable devices such as smart helmets and vests now monitor worker vitals and environmental conditions, alerting users to potential dangers like heat stress or toxic gases. Drones are also being deployed for site inspections, reducing the need for workers to access hazardous areas.
3. Enhanced Safety Regulations: Government agencies and industry organizations have intensified efforts to enforce safety regulations. Compliance with Occupational Safety and Health Administration (OSHA) standards is a priority for most construction firms. Regular inspections, audits, and penalties for non-compliance encourage adherence to safety protocols.
4. Shift in Workplace Culture: A culture of safety is gaining traction within construction firms. Employers are increasingly prioritizing worker well-being, fostering environments where safety concerns can be openly addressed. Daily safety briefings, hazard assessments, and collaborative problem-solving have become common practices.

The Workforce Expansion: A Key Driver of Higher Absolute Numbers

While the decrease in incidence rates is a victory for construction safety, the growing number of injuries and illnesses cannot be overlooked. This trend is linked directly to the industry's expansion. According to the BLS, the construction workforce has grown steadily over the past decade. The increased demand for skilled labor has resulted in more workers on job sites—and consequently, more opportunities for injuries and illnesses to occur.

1. Economic Growth and Construction Demand: The surge in construction activity stems from economic growth, infrastructure investments, and housing demand. Federal initiatives, such as the Bipartisan Infrastructure Law, have fueled large-scale projects, further driving the need for labor.
2. Worker Demographics: The influx of new workers, including many who are inexperienced or unfamiliar with construction safety protocols, poses challenges. Novice workers are statistically more likely to be involved in accidents, which can contribute to a higher total number of incidents.

The Dual Challenge: Balancing Rate Reductions and Volume Management

The dual trends in construction safety present unique challenges for the industry. Lower incidence rates indicate progress in safety initiatives, but the rising volume of cases highlights the need for additional strategies to manage overall risks.

1. Comprehensive Onboarding: To address the influx of new workers, construction firms must implement robust onboarding processes. Comprehensive orientation programs can ensure that all workers, regardless of experience, are adequately trained in safety protocols before stepping onto a job site.
2. Targeted Risk Mitigation: High-risk tasks, such as operating heavy machinery or working at heights, require focused interventions. Employers can reduce risks by using fall protection systems, conducting routine equipment inspections, and enforcing strict operating procedures.
3. Leveraging Data Analytics: Many firms are adopting data analytics to predict and prevent accidents. By analyzing trends in incident reports, companies can identify patterns and address underlying issues. Predictive analytics tools help target problem areas before incidents occur.

Future Considerations: Technology and Policy

The construction industry stands on the cusp of transformative change, driven by technology and evolving policies. These advancements promise to further enhance safety outcomes:

1. Automation and Robotics: Automation is poised to play a significant role in reducing construction site hazards. Robots are being developed to perform repetitive or dangerous tasks, such as bricklaying and welding, minimizing human exposure to risks.
2. Enhanced Personal Protective Equipment (PPE): Innovation in PPE design is improving worker protection. For instance, lightweight, impact-resistant helmets and advanced gloves that maintain dexterity while providing superior protection are becoming widely available.
3. Policy and Legislative Support: Ongoing updates to safety regulations and increased funding for enforcement will bolster workplace safety. Policymakers can also support safety innovation through grants and research funding.

Measuring Success Beyond Numbers

While metrics such as incidence rates and absolute numbers are crucial, they don’t tell the entire story. Construction safety is a multifaceted issue that requires qualitative assessments alongside quantitative data. Worker satisfaction, morale, and engagement in safety programs are equally important indicators of success.

GPRS: Committed to You & Your Team’s Safety

The construction industry’s 2023 safety data reveals a tale of progress and persistent challenges. The decline in incidence rates demonstrates that workplaces are becoming safer for individual workers, reflecting the effectiveness of training, technology, and regulatory compliance. However, the increase in absolute numbers underscores the ongoing need for vigilance as the industry grows.

The construction industry has made strides, but the journey toward zero workplace injuries and illnesses continues. By learning from the past and innovating for the future, the industry can set a new standard for safety, paving the way for a thriving and secure workforce.

At GPRS, safety is always on our radar.

That’s more than just a catchy tagline; through our sponsorship of safety initiatives such as Concrete Sawing & Drilling Safety Week, Construction Safety Week, and Water & Sewer Damage Awareness Week, we aim to ensure that every employer and employee in the construction industry is equipped with the knowledge and resources they need to stay safe while building for our nation’s future.

Click here to learn more about GPRS’ safety initiatives and partnerships.

A $600 million proposal to transform a "derelict" industrial site on Pittsburgh’s North Side into a riverfront destination featuring a massive Ferris wheel has taken a significant step forward.

According to the Pittsburgh Post-Gazette, the Pittsburgh Planning Commission unanimously approved the master plan for the Esplanade following a recent 75-minute hearing. This approval, which allows Piatt Companies to proceed with the 15-acre redevelopment along the Ohio River, comes after strong support from Manchester community groups and residents, who praised the project as a potential catalyst for revitalizing the neighborhood and advancing affordable housing initiatives.

Lucas Piatt, CEO of Piatt Companies, emphasized the inclusive vision for the Esplanade in his remarks, calling it “a project for everyone” and highlighting the eight years of effort his team has dedicated to its development.

“We want to create a wonderful destination for the region,” he said.

According to the Post-Gazette, the Esplanade presents a transformative opportunity to revitalize the Manchester neighborhood and unlock significant growth in the Chateau riverfront area, potentially paving the way for hundreds of acres of economic development, according to Piatt.

On the same day the Pittsburgh Planning Commission approved the master plan for the $600 million project, the city’s Urban Redevelopment Authority (URA) unveiled plans to establish a Manchester-Chateau Transit Revitalization Investment District (TRID). This district would help fund nearly $54 million in infrastructure and other improvements tied to the development.

The project’s highlight is a massive Ferris wheel, reminiscent of similar attractions in London, Paris, Chicago, and Seattle, standing up to 200 feet tall. The proposed Manchester wheel pays homage to George Washington Gale Ferris Jr., the inventor of the Ferris wheel, who once lived on Pittsburgh’s North Side.  

The first phase of the redevelopment includes a 19-story, 408-unit apartment tower with 308 parking spaces, alongside “The Current,” a three-story, 64,256-square-foot feature building housing a food emporium, a four-seasons garden, restaurants, and an amphitheater. Other features include a relocated riverside trail, a 112-slip marina, and 17 floating homes on barge-like bases. A 651-space parking garage with additional retail will complete this phase, with potential for residential or office expansion above it in the future.

Phase two plans include a “destination aquarium” anchoring the west end, a 14-story condominium tower with 126 units, and a 19-story, 409-unit apartment building. Across all phases, 20% of the apartments will be designated as affordable housing for households earning 80% of the area median income, according to the Post-Gazette.

The URA’s proposed TRID would redirect 75% of new tax revenue generated by the development toward infrastructure improvements, while the remaining 25% would benefit the city, Allegheny County, and the Pittsburgh school district. Of the projected $53.9 million in funds, $40.4 million would support on-site development, including affordable housing, parking, and transit accessibility, with $13.4 million earmarked for off-site enhancements like pedestrian and bike connections, street conversions, and gap financing for affordable housing projects.

The Esplanade, slated for completion by 2027 or 2028, is expected to create over 9,300 construction jobs and 4,500 permanent jobs, generating significant economic benefits for the region. The redevelopment will also transform a former industrial brownfield west of the West End Bridge into a vibrant riverfront community featuring apartments, retail, an aquarium, a marina, and floating homes.  

The project’s centerpiece, the Ferris wheel with LED lighting, will be positioned on the east end, offering views of Downtown Pittsburgh’s skyline. Community members have expressed optimism about the project’s impact, according to the Post-Gazette, envisioning it as a symbol of Pittsburgh’s revitalization and a potential new backdrop for high-profile events like Monday Night Football.

GPRS Services Support Safe & Successful Construction Projects

Whether you’re revitalizing a long-neglected neighborhood in one of America’s most historic cities, or transforming a single office building into modern apartments, ensuring the success of your project begins with knowing what’s buried on your job site.

Damaging a buried utility can decimate your schedule and budget, and endanger your workers. GPRS offers 99.8%+ accurate utility locating and concrete scanning services to ensure you know where it is and isn’t safe to dig.

Our 3D laser scanning and Mapping & Modeling services can capture our utility markings to create accurate existing conditions documentation of your buried infrastructure. And this data is available to you and your team 24/7 from any computer, tablet, or smartphone thanks to SiteMap^® (patent pending), our facility & project management application designed to help you plan, design, manage, dig, and ultimately build better.

What can we help you visualize?

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.

Can GPRS locate PVC piping and other non-conductive utilities?

Yes, ground penetrating radar (GPR) scanning is exceptionally effective at locating all types of subsurface materials. There are times, however, when PVC pipes do not provide an adequate signal to ground penetrating radar equipment and can’t be properly located by traditional methods. GPRS Project Managers are expertly trained at multiple methods of utility locating, including electromagnetic (EM) locating, to compensate for GPR’s limitations.

Can GPR be used to verify known measurements?

We can use GPR to cross-check the measured depth and location of a located utility with existing as-built plans to verify the accuracy of plans.

Can GPRS Project Managers distinguish between the different types of underground utilities they locate?

In most situations, we can identify the utility in question without any problems, although it is not always possible to determine what type of utility is present. When this happens, we attempt to trace the utility to a valve, meter, control box, or other signifying markers to determine the type of utility buried.

When the owners of a rail yard in Denver, Colorado, needed a quick and inexpensive solution for verifying the as-built documents for their buried stormwater system, GPRS Project Manager Conner Sorensen answered the call.

Sorensen conducted a smoke test on the expansive system to verify which manholes were connected to the buried lines, ensuring our client can effectively plan future renovations and expansions to their property.

“Our client wanted to verify existing plans of their stormwater system,” Sorensen said. “They chose to use the smoke tester so we could quickly find out what manhole structures were tied in together.”

Smoke testing is one of the simplest, non-invasive testing methods to detect sanitary and storm sewer line defects and blockages, pinpoint potential inflow and infiltration (I/I) points, and discover illegal (illicit) sewer tie-ins. While further investigation is often required to deduce the exact source of an issue, smoke testing is perfect for when you just need to know if “something” is wrong or when you need to determine what surface features are connected to a system.

How to Conduct a Sewer Line Smoke Test

The smoke testing process consists of three simple steps:

1. Locate Insertion Point: To deploy smoke cartridges (sometimes still called candles, though true smoke candles are now rarely used), access to the sewer lines is required. This access is typically through a manhole, though the type of blower being used can influence the size of the required opening. A clean-out can also serve as an entry point. Two types of blowers are commonly used for sewer smoke testing: the squirrel cage blower and the direct-drive propeller blower. These names reflect the type of fan mechanism each employs. Squirrel cage blowers are generally larger and provide higher static pressure, while propeller-style blowers deliver greater airflow capacity, measured in cubic feet per minute (cfm).
2. Deployment/Release: Securely attach a blower equipped with a smoke cartridge to the sewer entry point. Whether using a blower fan over a manhole or blower tubing over a smaller opening, ensure the connection is as airtight as possible. This prevents smoke from escaping prematurely and ensures it travels through the sewer line for effective tracing. The smoke used is non-toxic, typically made from mineral oil, and dissipates quickly.
3. Tracking/Reporting: Introduce smoke into the sewer line and trace where it escapes. In a properly connected and maintained system, smoke will emerge from other manhole covers and the plumbing vents of buildings legally connected through private lateral sewer lines. If smoke rises from the ground or seeps through pavement cracks, it indicates a sewer defect and a potential infiltration risk. Smoke emerging from a cleanout often suggests a damaged or missing cleanout cap that needs replacement. If smoke escapes from a residential gutter or downspout, it signals an illicit connection that could adversely affect the wastewater system.

Results of Professional Sewer Smoke Testing

Sorensen completed smoke testing the rail yard’s stormwater system in one day, quickly determining that the client’s existing as-built documentation was accurate and all manholes on property were connected to the system.

“The client was very happy with the results and was able to move forward with their planning knowing what lines were connected and how accurate their original plans were,” Sorensen said.

To obtain a comprehensive map of your subsurface sanitary and storm sewer lines, consider hiring a private sewer inspection company, such as GPRS. We offer NASSCO-certified video pipe inspection reports that identify every blockage and defect in your pipes. These reports can also include a detailed inclination analysis, providing insight into the condition of your mainlines and laterals without the need for costly excavation.

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

What can we help you visualize?

Frequently Asked Questions

Does GPRS offer lateral launch services?

Yes, we offer lateral launch capabilities as part of our standard Video Pipe Inspection services.

What deliverables does GPRS offer when conducting a video pipe inspection?

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.

What size pipes can GPRS inspect?

Our elite VPI Project Managers have the capabilities to 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 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.

Frank Lloyd Wright’s Usonian design trend had a full-circle moment when fashion designer Marc Jacobs opened the newly restored Max Hoffman House in a gated community on North Mansuring Island in Rye, New York for an exclusive with Vogue.

The very first Usonian home was designed by Wright for another Jacobs – Herbert Jacobs of The Milwaukee Journal – who in 1936 issued a challenge to the architect to design a “good quality” house that could be built for under $5,000. That first Usonian home is now called the Herbert Jacobs House.

Usonian, the term Wright borrowed from James Duff Law, but mistakenly attributed to Samuel Butler, refers to what could be considered the opening of the architect’s second act, a two-decade period of prolific design innovation centered around the ideal way to create a home among various American landscapes that featured the outdoors, framed for the home’s residents, while honoring nature within its mid-century walls. (Wright’s Usonian Period is considered to be from 1936-1959).

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“The house was living proof of Wright’s hallmark Usonian principle, emphasizing a close connection between a structure and its surrounding environment.” – Marc Jacobs for Vogue

The Max Hoffman House is emblematic of Usonian homes, which feature flat roofs with large overhangs, tall windows – many with stained glass elements designed to frame and invite the outdoors, in – skylights, concrete slab flooring with radiant heat, built-in furniture and other features that can only be thought of as art in and of themselves, and more open floor plans than seen in most mid-century modern homes. These homes also popularized carports – an idea and term Wright himself coined as a more efficient form of automobile storage – and in these designs are cantilevered.

In the case of the Max Hoffman House, its exterior is stone, with tall windows, glass walls and doors looking out to the waterfront of the Long Island Sound, a pool, and features a slightly peaked slate roof trimmed in copper, which Jacobs & his husband, Charly Defrancesco, recreated to match the original. Built originally in 1955, one of the previous owners added a “north wing” and a Japanese-style garden in 1972 that still exist.

Examples of Wright’s Usonian homes can be found throughout the U.S. There were some 1,000 Usonian homes designed and built from New York to Oregon and everywhere in between. Another hallmark of the design is that the architect chose to place them on rather remote parcels of land that were not particularly noteworthy, except that he felt they were the appropriate framework for his creations. Each sight helped to inspire the interior and exterior designs. Of course, once a Frank Lloyd Wright home graced the property, each site became noteworthy, although not all of them have survived.  

In this century, designer Jacobs bought the iconic residence for $9.17 million in 2019 and worked directly with the Frank Lloyd Wright Conservancy to renovate the 6,000 s.f. mansion with Defrancesco, whom he wed in the “monumental fireplace” of the iconic home in the fall of 2019.

“I hadn’t even stepped inside, but I could feel it – this place was different, and genuinely one of the coolest houses I had ever seen… The house embraced me in a way I could have never anticipated.” – Marc Jacobs for Vogue

Jacobs & Defrancesco are only the forth owners of the iconic L-shaped home and are described as its “stewards” by Architectural Digest because they chose to work so closely with the conservancy to return the home to Wright’s original vision. Previous owners include Hoffman, an Austrian who fled Nazi occupation and is credited with introducing Americans to imported European automobiles (Wright also designed his New York City showroom, which has now, sadly, been demolished), Emily Fisher Landau, and Alice and Thomas Tisch. The Tisches sold the home to Jacobs because, according to their agent, they were extremely careful about choosing who would carry the stewardship of the home forward.

The home had been previously updated/renovated in the 1990s and required Jacobs & Defrancesco to strip it down to its studs and original foundation to restore the flooring and “rehabilitate the original mechanical systems.” The new owners also updated the home’s infrastructure to support modern technologies – smart home tech – and an “over-the-top” basement (which is unusual for a Usonian design), that now features a full-time laundromat, infrared spa, pharmacy, hair salon, nail salon, gift and office supply center… And “the only properly proportioned wooden closets in the entire house for a fashion-obsessed couple.”

There is also an en suite den, a library filled with first editions, and of course the two-story great room, which was both an immediate draw for the couple, and a masterwork of Wright’s Usonian design principles that marry nature and dwelling as one.

“With each passing month, it became clear that the work and craftsmanship necessary was far beyond what anyone had anticipated,” Jacobs wrote. However, their dedication to restoration was absolute, and after four years, the home was ready for its unveiling, which is happening exclusively in Vogue’s December 2024 issue, which Jacobs was invited to guest-edit – a first for the American publication.

The Frank Lloyd Wright Conservancy in the News

The Frank Lloyd Wright Conservancy was recently featured in the news for its efforts to stop the dismantling of Wright’s only skyscraper – sitting in the midst of the Oklahoma prairie. Easements for the conservancy’s right to stop his structures from being destroyed or stripped of their artistic design elements and furnishings are at the heart of an ongoing legal battle for Price Tower. The skyscraper, like the Max Hoffman House and many of Wright’s designs, brings elements of nature to its construction and features many custom-made pieces and copper fittings.

Frequently Asked Questions

Did Price Tower Sell?

The planned auction and/or sale of Frank Lloyd Wright’s iconic Price Tower has been delayed multiple times and is the subject of a protracted legal battle. The agent for the sale, TenX, now states the auction will take place in early 2025. Read more about Price Tower, here.

How Does GPRS Help Architects Restore Historic Buildings?

Architects, engineers, virtual design consultants, and stakeholders take special care when restoring or renovating historic sites to stay true to their architectural design, often while updating underlying infrastructure and technology for modern use. GPRS is the only company in the U.S. that can supply AEC and VDC professionals with comprehensive site visualization – above and below-ground – from 99.8% accurate utility mapping & concrete scans to construction-grade 3D BIM models that can integrate design plans into current existing conditions to reduce clashes, rework, and delays. Learn how we Intelligently Visualize The Built World® for clients throughout the U.S., here.

An electrical contractor has initiated an aggressive recruitment campaign to help them develop Texas’ digital and energy infrastructure.

San, Jose, California-based Rosendin is aiming to hire 700 tradeworkers for their teams in Dallas-Fort Worth, Temple, Abilene, and Austin, according to a recent Construction Dive article.

Workers in these markets have contributed to projects such as the Austin-Bergstrom International Airport terminal expansion and infrastructure upgrades at Texas A&M and the University of Texas. The company is currently hiring commercial electricians, journeymen, and solar panel installers for various Texas-based projects, including offsite manufacturing, aviation, transportation, semiconductor facilities, commercial, education, data centers, and renewable energy projects.

“Our growth in Texas catapulted in 2023, with contract awards in biomedical, transportation, semiconductor and mission-critical,” said Rosendin Operations Manager, Shaun Mahan. “The momentum of 2023 has continued throughout 2024 and we expect it to extend well beyond 2025. We continue to see tremendous growth in the data center market to support the growing demand for AI, cloud resources, and data analytics. The demand for skilled tradespeople and project leadership continues to exceed the labor supply.”

Construction Dive’s reporting notes that Rosendin has developed a strategy to separate itself from the competition to find the workers it needs despite the ongoing skilled labor shortage.

The company partnered with local branches of the International Brotherhood of Electrical Workers and the National Electrical Contractors Association to establish the Electrical Training Alliance, Mahan explained.

“This program combines classroom and online learning to improve the apprenticeship experience and offer flexibility,” he added.

Along with collaborating with local union halls to recruit men and women interested in pursuing careers as electricians, Mahan said the company aims to strengthen the workforce for the long term by partnering with local school districts to inform students, parents, and teachers about opportunities in the field.

To support this effort, the company has intensified its recruitment efforts in Texas, including launching a hiring website to attract craftworkers in the region.

Mahan told Construction Dive that Rosendin’s hiring initiative is going “extremely well” so far, but most of the onboarding will come next spring. The firm expects to hire approximately 500 electricians by April.

“We foresee the new hires in Texas becoming valuable assets to the Rosendin team and potential conduits for future leadership, innovations and award-winning work,” Mahan said. “We’re a culture of learning and development, so it’s always exciting to see what the next generation of craft workers will do with their legacies.”

Ongoing Construction Trends at Odds

Rosendin’s hiring spree speaks to two ongoing trends: the boom in construction projects centered around artificial intelligence and data centers, and their extraordinary power needs, and the dearth of skilled tradespeople to complete these projects.

In recent years, the United States has experienced a substantial increase in data center construction, fueled by the ever-growing demand for data processing and storage. This surge reflects not only the rising consumption of digital services by consumers and businesses but also a strategic effort by tech giants and investors to strengthen infrastructure for an increasingly digital future.

Several key factors contribute to the rapid expansion of data center construction in the U.S.:

• Digital Transformation: As more businesses undergo digital transformations, the need for robust IT infrastructure to support cloud computing, big data analytics, and online services has skyrocketed
• Internet of Things (IoT) and AI: The proliferation of IoT devices and the advancement in AI technologies have created vast amounts of data that need processing and storage, further fueling the demand for data centers
• Remote Work and Learning: The shift towards remote work and online education, significantly accelerated by the COVID-19 pandemic, requires substantial data processing capabilities, which data centers provide
• Legal and Regulatory Factors: Data sovereignty laws and privacy regulations, such as GDPR in Europe, are prompting companies to localize data storage and processing, leading to increased construction of data centers across the U.S.
• Geographic Hotspots: While data centers are being built across the country, certain regions have emerged as hotspots, including Northern Virginia, which hosts the largest concentration of data centers globally. Other significant areas include Silicon Valley, Dallas, Chicago, and Phoenix. These regions are favored due to their relatively low energy costs, favorable climate for natural cooling, and robust connectivity infrastructure.

One of the most noteworthy trends in data center construction is the focus on sustainability. Companies are increasingly adopting green building practices and striving to achieve energy efficiency and reduce carbon footprints. This involves the use of renewable energy sources, advanced cooling mechanisms, and innovative architectural designs that minimize energy consumption.

Despite this trend, data centers are intensive energy users. As their number grows, so does their impact on the energy grid and resources. Balancing this demand with the need for sustainability is a continuing challenge, which is why tech giants like Amazon and Microsoft have begun exploring unique solutions such as powering their data centers with nuclear energy.

This increasing demand for technology-driven construction projects has only exacerbated the issues related to the construction industry’s severe labor shortage.

A large portion of the industry’s workforce is at or nearing retirement age. In 2022, the median age of workers in construction and extraction occupations was 41.2 years, according to the Bureau of Labor Statistics (BLS). Nearly 45% of construction workers were aged 45 or older, highlighting that a significant portion of the workforce is nearing retirement. While an aging workforce is a trend across many sectors — the median age of U.S. workers was 42.3 in 2022 — construction has been particularly impacted by this demographic shift.

The construction industry’s perception as one that is volatile and lacking job security has made it difficult to attract younger talent. The industry has also struggled to compete with other industries that offer more attractive working conditions. Seasonal work, long hours, and physically demanding tasks make the profession less appealing to younger generations, who often prioritize work-life balance and job stability.

The labor shortage has forced many contractors to turn down new projects due to a lack of staffing, resulting in delayed timelines and increased costs. This coupled with the ongoing, high demand for construction projects has left the construction industry in an untenable position.

As Rosendin is illustrating with their initiative, construction firms have had to develop more proactive recruitment and retention strategies. These include:

• Early Outreach and Education: Engaging with students at younger ages is critical to changing perceptions of the construction industry and presenting it as a viable and rewarding career path. This involves introducing skilled trades as early as elementary and middle school and investing in vocational programs at high schools and community colleges
• Enhanced Diversity and Inclusion Efforts: The construction workforce has historically been dominated by older, white males, which has created a narrow view of who is a fit for the industry. To break this stereotype, companies are placing a greater emphasis on diversity, equity, and inclusion (DEI) initiatives to attract women, minorities, and other underrepresented groups. Once recruited, retaining a diverse workforce requires creating an inclusive environment that acknowledges the unique challenges faced by these groups and offers support such as childcare and flexible working arrangements
• Technology and Innovation: Leveraging new technologies can also play a pivotal role in attracting younger generations. Digital twins, artificial intelligence (AI), and other innovations can help reduce some of the physical and repetitive aspects of construction work, making the industry more appealing to tech-savvy individuals

GPRS is seeking a variety of talents to grow in our industry. Click here for a list of current job openings.

We’re also doing our part to ensure that the institutional knowledge of your workers stays with you and your company when those individuals retire.

SiteMap^® (patent pending), is GPRS’ facility and project management application designed to provide existing conditions documentation to protect your assets and people. It’s powered by the accurate, complete, and field-verified data collected by our nationwide team of SIM and NASSCO-certified Project Managers, and available to you 24/7 from any computer, tablet, or smartphone.

SiteMap^® enables you to knock down the communication silos that lead to costly mistakes, change orders, and delays, allowing you to plan, design, manage, dig, and ultimately build better.

Click below to schedule a live, 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.

In the best-case scenario, critical safety communication on a job site or in a facility takes place face-to-face in real time. It’s why general contractors and facilities large and small employ safety teams and managers, so that when they encounter a worker at risk, be it from exposure to a hazardous material, a work environment that requires extra safety measures, or unsafe work behavior, it can be addressed and corrected. That way, everyone involved experiences straight-line communication: where a message is given, received, and acknowledged. This provides a safer site for everyone.

But what if the communication isn’t to correct an obvious safety issue? What if the communication needs to be among subcontractors and tradespeople about key scheduling and workflow – so that your team can avoid mistakes, clashes, costly reworks, or worse – an accident? As soon as the straight-line communication breaks into multiple streams, the message, so easy to comprehend in that one-on-one scenario, gets muddy. Much like a game of telephone, by the time your message reaches the people who need it most, it may look nothing like what you meant to convey.

So, how do you avoid “playing telephone” when millions of dollars and people’s lives are at stake? Especially with more and more project management and oversight happening remotely?

Why Remote Construction Management is on the Rise

Prior to the Covid-19 pandemic, remote risk and project management had little foothold in the construction industry. The necessity of additional layers of safety and a dwindling pool of skilled construction workers required many general contractors and facility managers to rethink how they supervised projects, and many of those innovations have proven to have staying power in the post-pandemic economy.

The construction industry is still struggling to fill some 500,000 jobs across the U.S., so exceptional project planning and communication are vital to a successful and safe project outcome. New infrastructure mapping and communication software platforms are striving to meet construction project management needs, some more successfully than others.

The Components of a Successful Remote Communications Structure in Construction

Most industry experts agree that three software types are necessary to a solid comms platform: project management software, conferencing software, and scheduling software. While those components address scheduling and workflow communications, there is another crucial data need that none of those listed above address – accurate existing conditions/as-built information.

Why? Because every planned workflow, every material delivery, excavation, and crew, from architectural and engineering through MEP and finish work, cannot do their jobs safely and well without accurate as-builts. You cannot put a bucket in the ground, core through a post-tensioned slab, or lay a pipe-run, unless your team has the data they need to dig, cut, or install safely, without fear of clashes, rework, or risk.

On a large-scale project, how you collect, curate, and communicate that as-built information – accurately – can be the difference between a successful project and a series of critical mistakes. GIS platforms like Esri or even Google Earth, provide the ability to upload as-builts, but you have to do it yourself, which puts you at a communication deficit in multiple ways.

1- Someone must be tasked with aggregating information and ensuring it’s available as needed to those who need it

2- You are limited by the accuracy of what is available, which is usually at best, out of date, and at worst, inaccurate

3- Consistently updating existing conditions information requires continual monitoring, measuring, and reporting for subsurface utility & facilities, structural planning & execution, and construction progress

4- The consistency and accuracy of your as-builts is only as good as the subcontractors providing them. Most GCs and facility managers utilize multiple subcontractors to gather this information, which adds another layer of complexity and makes quality control more difficult, which can severely hamper communication

5- In the case of platforms like Google Earth, your data is not cloud-based or portable – it must be housed on a single machine and cannot be easily shared among teams or on site

How to Achieve Consistent, Updated, and Shareable Existing Conditions Information

As noted above, GIS platforms can help to corral your as-built information, but limit you by requiring you do the work of updating and uploading your existing conditions yourself, which adds time and money to the project, and requires you to coordinate the work of a host of subcontractors if you want to receive comprehensive site visualization.

GPRS has stepped up to lead the charge in Intelligently Visualizing The Built World® and provides a host of accurate, consistent, and easy-to-use tools to take the headache out of having up-to-date as-builts at your fingertips, 24/7, from anywhere, to give you the data control you need.

JobSite Plus is a project-based product that allows you to receive the most accurate subsurface utility locates, full site utility mapping and aboveground structural data capture, including 3D laser scanning and complete BIM modeling, construction progress reporting via ProCap Progressive Capture, and floorplans via FLRPLN – all utilizing GPRS’ industry-leading 99.8% accurate utility locates and concrete scans, NASSCO-certified video pipe inspection (VPI) reporting, and more, structured to meet your specific project needs.

The JobSite Plus package also includes a SiteMap® Project subscription, which enables you to control the quality of your subsurface and as-built data – because GPRS provides it all in a single source of truth, easily accessible and securely shareable to those who need it most via our cloud-based GIS platform.

Every piece of your site or facility data is captured by GPRS, uploaded by GPRS, and available at your fingertips in a layered, geolocated map that houses every data point, including your sewer scope reports and concrete scans inside SiteMap® for the duration of your project. SiteMap® also provides data portability to other GIS platforms, should you desire to integrate your information with existing software you may use.

Nothing can replace the importance and immediacy of your safety team for on-site interactions. But when you can’t be there in person, providing accurate, up-to-date and aggregated site information – above and below-ground – to those who need it most, is one of the most important tools in your arsenal to control your jobsite. It can also help to limit costly site visits and provide progress reporting/data to stakeholders, insurers, and regulators to help keep your project on time, on budget, and most importantly safe.

What can we help you visualize?

Frequently Asked Questions

What is SiteMap®?

SiteMap® is GPRS’ proprietary, cloud-based site and facility mapping platform with a GIS component that allows us to directly deliver all data collected by our project managers and deliverables like maps, models, and CAD drawings to our customers. Every GPRS customer receives a complimentary SiteMap® Personal Subscription, and there are additional subscription levels to meet project, facility, and national portfolio needs. Learn more about SiteMap®, here.

How does GPRS maintain 99.8% accuracy?

All GPRS Project Managers are required to be SIM-certified, meaning they must be experts in Subsurface Investigation Methodology – the most rigorous subsurface locating and mapping protocol in the world for concrete imaging and utility locating. SIM requires 80 hours of classroom work and 320 hours of mentored field training to achieve 101 certification, and additional education for levels 201 & 301. Our Project Managers also receive additional training in 3D laser scanning, leak detection, video pipe inspection, and other complementary technologies so that they can act as consultants to you in the field to meet your needs.

What is the Green Box Guarantee?

Just like our 99.8% accuracy in utility mapping, GPRS maintains a verified 99.8% accuracy rate in concrete scanning and imaging. If a GPRS Project Manager marks a green box with “clear” inside it, we guarantee that it is free of obstructions and reinforcements so that you can cut or drill with confidence. If we get it wrong, we’ll pay the material cost for your repair. Learn more here.

Efficient communication is as critical to the success of your construction projects as the quality of the work itself.

Projects often involve multiple stakeholders — contractors, subcontractors, architects, suppliers, and clients — who may be spread across various locations. This geographic separation creates communication barriers and fosters information gaps, which can result in costly delays, rework, and dissatisfaction.

The advent of digital jobsites like SiteMap^® (patent pending), powered by GPRS, has emerged as a transformative solution, offering contractors the tools to seamlessly connect teams, streamline workflows, and deliver superior outcomes. Digital jobsites empower contractors to overcome communication barriers and eliminate information silos, improving efficiency, collaboration, and project success.

The Communication Challenges in Contracting

Contractors face unique communication challenges due to the nature of their work:

1. Geographic Separation: Teams often operate in different locations, with the on-site crew, project managers, and office staff spread out geographically.
2. Fragmented Information: Paper-based documents, emails, and verbal instructions often lead to inconsistent information being shared across teams.
3. Real-Time Updates: Construction projects are dynamic, requiring rapid adjustments. Without an efficient system, relaying updates across multiple stakeholders is cumbersome.
4. Accountability: Miscommunications can lead to disputes about who was responsible for a specific task, deadline, or decision.

Digital jobsites address these issues by serving as centralized platforms that foster clear, real-time communication.

What is a Digital Jobsite?

A digital jobsite is a technology-driven platform or software that integrates various project management tools, communication channels, and data-sharing capabilities into one system. Accessible via computers, tablets, and smartphones, these platforms are designed to connect teams and streamline operations regardless of physical location.

Overcoming Communication Barriers & Eliminating Information Gaps

One of the standout advantages of a digital jobsite is its ability to bridge communication gaps between geographically separated teams. A digital jobsite serves as a single source of truth where all project data is centralized. And they are instrumental in eliminating information gaps that often plague construction projects.

Digital jobsites can store everything from your existing as-builts to updated utility maps in one secure, yet easily accessible platform. When a design change is made or renovations occur on site, those alterations can be captured and updated in real time in the data to ensure seamless communication between stakeholders.

Enhance Visibility & Enable Integration

Transparency is key to effective project management. Digital job sites provide dashboards that give contractors a bird’s-eye view of the project’s status. Stakeholders can access this accurate data to make informed decisions, even when they’re nowhere near the jobsite.

Many digital platforms, including SiteMap®, integrate with other software used in the construction industry, such as accounting systems, CAD tools, or supply chain platforms. This seamless integration reduces data silos and ensures that teams across different functions can collaborate effectively.

The Human Element: Building Trust and Collaboration

While technology is a powerful enabler, its effectiveness hinges on how well it’s adopted by the people who use it. Contractors can maximize the benefits of digital job sites by fostering a culture of trust and collaboration:

• Training: Ensure all team members are trained to use the digital platform effectively. The easier it is for workers to adopt the technology, the smoother the transition
• Open Communication: Encourage teams to use the platform for both formal updates and informal check-ins. This builds familiarity and strengthens team bonds
• Feedback Loops: Use the platform’s data to analyze workflows and gather feedback. Insights can help refine processes and improve overall efficiency

The Broader Impact on the Contracting Industry

The adoption of digital job sites is not just a boon for individual contractors but a game-changer for the entire construction industry. These platforms:

• Promote Sustainability: By reducing reliance on paper and physical documentation, digital job sites contribute to eco-friendly practices
• Drive Innovation: Contractors using advanced tools gain a competitive edge, attracting more clients and higher-quality projects
• Standardize Practices: Digital platforms help establish standardized practices that improve consistency across projects

Let SiteMap^® and GPRS Help You Build Better

In an industry where time is money and precision is non-negotiable, digital jobsites have become indispensable tools for contractors. By bridging communication barriers and eliminating information gaps, these platforms empower geographically separated teams to work as a cohesive unit. From real-time updates and centralized documentation to enhanced accountability and collaboration, digital jobsites transform the way contractors manage projects.

What sets SiteMap^® apart from other digital jobsites is that it’s backed by the accurate, field-verified data collected on your site by our specially trained Project Managers. That means you get 24/7 access to 99.8%+ accurate utility locating and concrete scanning, pinpoint-accurate leak detection, 2-4mm accurate 3D laser scanning, and NASSCO-certified video pipe inspection (VPI) data from your computer, tablet, or smartphone.

Click below to schedule a live, 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.

Underground storage tanks (USTs) are widely used to store hazardous substances such as petroleum products, industrial chemicals, and other liquid materials.  

Found beneath gas stations, industrial facilities, and even residential properties, these tanks play a critical role in ensuring safe storage. However, when USTs fail, they can lead to significant environmental, health, and economic hazards. Leaking underground storage tanks (LUSTs) pose a pressing issue that requires attention from policymakers, businesses, and the public alike.

According to the Environmental Protection Agency (EPA), approximately 544,000 UST systems are currently regulated across the United States. While stringent regulations have reduced the frequency of leaks, aging infrastructure and human error still lead to thousands of reported leaks annually. The consequences of such incidents are far-reaching, impacting soil, water, air, and public health.  

What Are Underground Storage Tanks?

An underground storage tank system includes a tank and any underground piping connected to it. The EPA defines a UST as any tank with at least 10% of its combined volume (including pipes) buried underground. Common uses include storing gasoline at service stations, heating oil for homes, and chemicals for industrial purposes.

What Causes Leaks?

Leaks occur due to various factors, including:

1. Aging Infrastructure: Older tanks, especially those made of steel, are prone to corrosion. Tanks installed before the 1980s often lack corrosion-resistant materials, making them susceptible to structural failure.
2. Improper Installation or Maintenance: Incorrect installation or lack of regular inspections increases the risk of damage.
3. Overfills and Spills: During refueling or transfer operations, overfills can lead to hazardous materials entering the surrounding soil.
4. External Factors: Natural disasters, construction activity, and vehicular traffic can damage tanks and their piping.

Environmental Impacts of LUSTs

Contamination of Groundwater

Groundwater contamination is one of the most severe consequences of LUSTs. The EPA estimates that groundwater provides drinking water for nearly half of the U.S. population. When hazardous substances like benzene, toluene, and xylene seep into groundwater, they pose serious health risks. These compounds, often found in petroleum products, are known carcinogens and can lead to chronic illnesses even at low exposure levels.

Soil Degradation

Leaks can also lead to soil contamination, rendering land unusable for agricultural or recreational purposes. Contaminants affect soil structure and fertility, making remediation efforts complex and costly.

Air Pollution

Volatile organic compounds (VOCs) released from leaks can evaporate into the atmosphere, contributing to air pollution. These compounds can cause respiratory problems and exacerbate conditions like asthma when inhaled by humans.

Health Risks

Exposure to contaminants from LUSTs can have acute and chronic health effects. Immediate symptoms may include dizziness, headaches, and nausea due to inhalation of VOCs. Long-term exposure increases the risk of cancer, liver damage, and neurological disorders.

Particularly vulnerable populations include children, pregnant women, and individuals with pre-existing health conditions. The spread of contaminants through groundwater or surface water systems can also jeopardize community water supplies, exacerbating public health crises.

Economic Consequences

The economic burden of LUSTs is significant. Cleanup costs can range from tens of thousands to millions of dollars, depending on the severity of the leak. Local governments and property owners often bear the brunt of these expenses. Additionally, contaminated sites lose property value, and businesses reliant on affected land may face lawsuits or loss of reputation.

The EPA's Leaking Underground Storage Tank (LUST) Trust Fund helps address some of these costs, providing financial assistance for site remediation. However, the fund alone cannot cover all incidents, highlighting the importance of prevention over remediation.

Regulatory Framework

The U.S. government has taken steps to regulate UST systems and mitigate risks. The EPA enforces stringent requirements under the Resource Conservation and Recovery Act (RCRA), which includes regulations for tank design, installation, operation, and closure. Key provisions include:

1. Corrosion Protection: New tanks must be constructed with materials resistant to corrosion or have corrosion protection systems.
2. Leak Detection Systems: All USTs must be equipped with systems to detect leaks early, such as automatic tank gauging or interstitial monitoring.
3. Periodic Inspections: Regular inspections ensure compliance with safety standards and identify potential issues before they escalate.
4. Operator Training: UST operators are required to undergo training to understand proper maintenance and emergency response protocols.

Despite these measures, enforcement and compliance remain challenges, especially for older systems or in underfunded regions.

Solutions and Best Practices

Prevention

Preventing leaks is the most cost-effective and environmentally responsible approach. Businesses and property owners should prioritize the following:

1. Upgrade Infrastructure: Replace aging tanks with modern systems designed to resist corrosion and detect leaks.
2. Regular Maintenance: Schedule periodic inspections to identify and address vulnerabilities.
3. Use Secondary Containment: Install barriers or double-walled tanks to prevent leaks from reaching the environment.

Early Detection

Early detection technologies can significantly reduce the impact of leaks. Advanced sensors, real-time monitoring systems, and automated alerts allow for rapid response to incidents.

Community Awareness

Educating communities about the risks of LUSTs and reporting protocols can help ensure timely intervention. Local governments should work with businesses to host workshops and distribute informational materials.

Remediation

When leaks occur, prompt and effective cleanup is essential. Remediation methods include:

• Soil Vapor Extraction (SVE): Removing volatile contaminants from soil using vapor extraction systems
• Bioremediation: Using microorganisms to break down pollutants
• Pump-and-Treat Systems: Extracting contaminated groundwater and treating it offsite.

GPRS Services Assist with Environmental Due Diligence

As part of the due diligence process in real estate transactions, Phase I Environmental Site Assessments (ESAs) often uncover recognized environmental conditions (RECs) tied to a property’s current or past use. These RECs may stem from sources such as LUST sites that weren’t properly closed, dry cleaning operations, manufacturing or industrial facilities, vehicle repair shops, or improper disposal of hazardous chemicals.

When Phase II ESA investigations are needed to evaluate potential soil, groundwater, or soil vapor impacts, prioritizing field staff safety and safeguarding the property’s infrastructure is essential. GPRS utilizes industry-leading equipment operated by our highly skilled Project Managers. Our adherence to Subsurface Investigation Methodology (SIM) ensures that all proposed locations for soil borings, groundwater monitoring wells, and soil vapor pins are cleared of utilities before drilling. GPS mapping of utility findings and sample locations is included with every project.

If contamination of soil, groundwater, or soil gas is detected above cleanup thresholds, further investigation may be required to confirm there are no exposure pathways or to address remediation needs. With detailed maps from the initial investigation, GPRS can efficiently locate prior sample sites, conduct utility restakes, and assess whether nearby utilities could serve as contamination migration pathways.

GPRS is the trusted leader in damage prevention for the environmental sector. Our project managers provide support from the initial investigation through delineation and remediation to project completion. With a nationwide network of Project Managers, we are ready to mobilize to projects anywhere in the United States.

What can we help you visualize?

Frequently Asked Questions

What is a Leaking Underground Storage Tank (LUST) site?

A LUST site refers to a location where an underground storage tank (UST) has leaked, releasing hazardous substances such as petroleum products or chemicals into the surrounding soil, groundwater, or both. These leaks can result from corrosion, improper installation, or operational failures. LUST sites can pose significant environmental and public health risks, including contamination of drinking water sources and soil.

How are LUST sites identified and assessed?

LUST sites are typically identified during environmental site assessments (ESAs) conducted as part of property due diligence. Phase I ESAs may uncover recognized environmental conditions (RECs) suggesting potential LUST issues, while Phase II ESAs involve soil, groundwater, or vapor sampling to confirm contamination. Advanced equipment and methodologies, such as utility locating and subsurface investigation, are used to ensure accurate and safe assessments.

What happens if contamination is found at a LUST site?

If contamination is detected above regulatory cleanup levels, further investigation and remediation may be required. This can involve removing contaminated soil, treating groundwater, or monitoring vapor intrusion pathways. Regulatory authorities may oversee the process to ensure proper cleanup and to minimize environmental and health impacts.

GPRS can assist in locating utilities, identifying migration pathways, and supporting remediation efforts to address contamination efficiently.

It’s not every day that a 70-year-old hotel on the Las Vegas Strip needs to be demolished.

But when one did, GPRS was there to ensure the project stayed on time, on budget, and safe.

GPRS Project Managers Armando Gonzalez and Arthur Formoso mapped the buried utilities and inspected underground sewer lines in and around the historic resort to mitigate the risk of damaging this infrastructure during demolition. They completed their work while the hotel was still operating, and provided accurate data that not only ensured a safe demolition but will also be provided to the contractor selected to build on the site in the future.

“It was important for us to find everything so they could start the demolition and get on the right track,” Formoso said. “They didn’t want any surprises.”

Gonzalez utilized ground penetrating radar (GPR) and electromagnetic (EM) locating to identify and map all buried utilities on the property.

GPR is a non-destructive detection and imaging technology utilized in the construction industry for locating items such as utility lines, underground storage tanks (USTs), and rebar underground or within concrete slabs. A GPR scanner emits a radio signal into the ground or a slab and detects the interactions between the signal and any subsurface elements. Those interactions are displayed in a GPR readout as a series of hyperbolas that vary in size and shape depending on the type of material located.

Professional utility locators like GPRS’ SIM-certified Project Managers are specially trained to interpret this data, so they can determine what was located and provide an estimated depth for the buried obstructions.

EM locating compliments GPR by detecting the electromagnetic signals radiating from metallic pipes and cables rather than the utilities themselves. These signals can be created by the locator’s transmitter applying 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.

At the hotel in Las Vegas, Gonzalez’s utility locates provided 99.8% accurate data for the demolition contractor to use for their planning.

“They already had as-built plans, so they kind of had an idea where everything was at,” he explained. “Once we came out, they kind of compared our locates to the drawings they already had. There were things that we were able to explain to them, like ‘this is what this is here,’ and stuff like that…”

Because of its age and the numerous renovations and expansions that had occurred at the hotel over the decades, the buried utilities on the property were a tangled web of both active and abandoned utilities. By utilizing EM locating, Gonzalez was able to verify which buried utilities were in use and which were inactive.

“The fact that we did our due diligence, even with things that seemed like they were abandoned or that they weren’t looking for, that’s what helped them realize ‘OK, we hired the right people,’” he said.

Formoso utilized a remote-controlled sewer inspection rover and push-fed sewer scope to map and inspect the integrity of the hotel’s buried sewer pipes. Both the rover and scope were equipped with CCTV cameras and sondes: instrument probes that are detectable from the surface using EM locating and allow for the mapping of buried wastewater utilities.

Because of the extraordinary depth of some of the sewer lines, Formoso also equipped his rover with a Prototek DuraSonde Transmitter. Colloquially referred to as a ‘super sonde,’ this 10 ¼ inch-long, 8 KHz frequency transmitter is detectable in nonmetallic pipes buried up to 50 feet down into the earth. By comparison, the rover’s internal sonde can locate pipes up to 15 feet deep.

Formoso was able to provide the client with a NASSCO-certified inspection report detailing the condition of the sewer system and providing photo and video evidence of all identified defects.

“There was just a lot of hidden stuff and vaults that we identified,” he said. “We saw a lot of as-intended maps, but they just kind of said ‘there’s something around here,’ and it was something that we had to actually find on the VPI side.”

Gonzalez, who lives near the hotel, personally witnessed the demolition, which occurred at 3 a.m. and was accompanied by a drone show.

“Even though they were going to demolish everything, [the client and the property owner] didn’t want to come across something that they didn’t know was there during demolition,” Gonzalez said. “The plans that they might have had could have varied from what was there because they’d changed it two to three times since the property was open. So, presenting a good, clean map of the property that was as detailed as possible to then give to the next client, that was important.”

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?

Frequently Asked Questions

Can ground penetrating radar locate PVC piping and other non-conductive utilities?

GPR scanning is exceptionally effective at locating all types of subsurface materials. There are times when PVC pipes do not provide an adequate signal to ground penetrating radar equipment and can’t be properly located by traditional methods. However, GPRS Project Managers are expertly trained at multiple methods of utility locating.

Will I need to mark out the utilities that 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.

What deliverables does GPRS offer when conducting a video pipe inspection (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.

Head protection is a fundamental aspect of worker safety in the construction industry, designed to shield individuals from hazards such as falling objects, electrical risks, and impacts.

But a recent collaborative study by J. J. Keller & Associates, Inc. and the International Safety Equipment Association (ISEA) has highlighted how significant confusion and lack of clarity regarding head protection terminology and practices poses substantial safety risks on construction sites.

Understanding the Terminology: Hard Hats vs. Helmets

The study, titled “A Turning Point for Head Protection,” reveals that while many safety professionals believe they understand the distinctions between various types of head protection, there is considerable confusion and oversimplification concerning the differences and similarities between hard hats and helmets.

This ambiguity can lead to the selection of inappropriate protective equipment, thereby increasing the risk of injury.

Traditionally, hard hats have been the standard in construction, offering protection against falling objects and limited lateral impact. In contrast, helmets, often used in activities like climbing or cycling, provide enhanced protection against impacts from multiple directions and may include features such as chin straps for a secure fit. The evolving landscape of head protection has introduced a variety of options, which, while beneficial, has also led to confusion among safety professionals and workers.

Challenges Faced by Safety Managers

Safety managers are encountering multiple challenges in managing head protection effectively:

• Navigating a Complex Decision-Making Process: With an increasing array of head protection options, selecting the appropriate equipment for specific tasks has become more complicated
• Ensuring Consistent Usage: Encouraging workers to consistently wear head protection remains a significant hurdle, often due to discomfort or lack of awareness about the importance of proper equipment
• Addressing Fit and Comfort Issues: Finding head protection that fits well and is comfortable for all employees is essential, as ill-fitting equipment can lead to non-compliance and reduced effectiveness

The Role of Standards and Education

The study emphasizes the need for standards organizations, manufacturers, and other experts to provide clarity, guidance, and education to address the evolving landscape of head protection.

"Addressing these challenges head-on and clarifying the most effective solutions and standards will ensure better protection and safety for all,” said ISEA President and CEO, Cam Mackey.

Educational initiatives can help demystify head protection terminology and inform safety managers and workers about the appropriate selection, use, and maintenance of head protection equipment. This includes understanding the specific hazards present in their work environment and choosing equipment that meets the necessary safety standards.

Implications for Worker Safety

The confusion surrounding head protection terminology and practices has direct implications for worker safety:

• Increased Risk of Injury: Selecting inappropriate head protection can leave workers vulnerable to injuries from falling objects, electrical hazards, and impacts
• Non-Compliance: Misunderstanding the requirements for head protection can lead to non-compliance with safety regulations, resulting in legal and financial consequences for employers
• Reduced Effectiveness of Safety Programs: A lack of clarity can undermine the effectiveness of safety programs, as workers may not fully understand the importance of proper head protection or how to use it correctly

Recommendations for Improving Clarity and Safety

To mitigate the risks associated with confusion over head protection, the ISEA and J.J. Keller recommend the following steps:

1. Standardization of Terminology: Develop and promote standardized terminology for head protection equipment to ensure a common understanding among safety professionals and workers.
2. Comprehensive Training Programs: Implement training programs that educate workers on the differences between various types of head protection, their specific uses, and the importance of proper fit and maintenance.
3. Collaboration with Manufacturers: Work closely with manufacturers to design head protection that meets the diverse needs of the workforce, focusing on comfort, fit, and suitability for different tasks.
4. ‍Regular Audits and Assessments: Conduct regular audits of head protection practices on construction sites to identify areas of confusion or non-compliance and address them promptly.
5. Clear Communication of Safety Standards: Ensure that safety standards and guidelines are communicated clearly and effectively to all stakeholders, including safety managers, workers, and equipment suppliers.

GPRS Committed to Worker Safety

The construction industry is at a critical juncture concerning head protection practices. The confusion and lack of clarity identified in the J. J. Keller and ISEA study highlight the urgent need for standardized terminology, comprehensive education, and collaboration among all stakeholders to enhance worker safety.

By addressing these challenges proactively, the industry can ensure that workers are adequately protected, reducing the risk of injury and fostering a culture of safety on construction sites.

GPRS sponsors numerous safety initiatives each year designed to provide construction workers with the resources they need to stay safe on the job site. These include Construction Safety Week, to Concrete Sawing & Drilling Safety Week, and Water & Sewer Damage Awareness Week.

Click here to learn more about our safety initiatives.

A long-delayed expansion to the San Francisco International Airport (SFO) is finally underway.

Longtime GPRS safety partner Turner Construction broke ground this summer on the $2.6-billion Terminal 3 West Modernization project, which will renovate the existing 650,000-square-foot western half of SFO’s Terminal 3, including a seismic retrofit, an expanded security checkpoint and new passenger amenities.

According to an SFO press release, the project will also create 200,000 square feet of additional space, allowing for expanded food, beverage, and retail concessions. The expansion is expected to open in fall 2027.

“For millions of people around the world, SFO creates their very first impression of the San Francisco Bay Area,” said San Francisco Mayor London Breed. “We want our residents to be proud of their hometown Airport and for visitors to experience what makes our region great the moment they step off an airplane. This Terminal 3 West Modernization project is another major step that will ensure SFO continues to reflect the innovation, sustainability, and diversity that make San Francisco such an amazing place.”

Turner is leading the design-build team alongside San Francisco-based architects Gensler and TEF Design. According to an article in Construction Dive, the project is part of the airport’s larger, 10-year expansion plan which began in 2019.

SFO is targeting LEED Platinum certification for this project, with planned sustainability features including daylight harvesting, displacement ventilation, on-site photovoltaic cells, waste heat recovery, low carbon steel and concrete, energy smart baggage handling, dynamic glazing, recycled water, hydration stations, health-friendly materials and green building education.

At its peak, the project is anticipated to employ 500-600 workers, and is targeting to award over $173 million in contracts to Local Business Enterprises (LBE).

“We are always looking for ways to continue growing our operation in the San Francisco Bay Area, so we are thrilled that these state-of-the-art improvements to airport facilities will entice even more people to visit us here,” says Lori Augustine, Vice President of Airport Operations for United’s SFO Hub. “We’ve had an incredible partnership with the airport for many decades, and our work with them on the T3 West project is a symbol of our commitment to San Francisco and the faith we have in this city as one of the most desirable places to live, work, and visit.”

About the Design-Build Process

Traditionally, construction projects follow a design-bid-build (DBB) model. In this framework, the owner first hires an architect or designer to create detailed plans. Once the design is complete, contractors bid on the project, and the selected contractor executes the construction phase. While this approach provides clear delineation between roles, it often leads to fragmented communication, cost overruns, and extended timelines.

The design-build process, on the other hand, merges design and construction into a unified workflow. A single entity—typically a design-build firm or a consortium of design and construction professionals—takes full responsibility for all aspects of the project. This streamlined structure eliminates the silos of responsibility, paving the way for more efficient and effective project delivery.

Key Benefits of the Design-Build Process

1. Streamlined Communication and Collaboration

One of the standout advantages of the design-build approach is the seamless communication it fosters between design and construction teams. With both disciplines working in tandem from the project's inception, potential conflicts or misunderstandings are addressed early in the process. This collaborative environment ensures that the design is both aesthetically pleasing and practically feasible, reducing the likelihood of costly changes during construction.

For the owner, having a single point of contact simplifies communication. Rather than coordinating between separate design and construction entities, the owner engages directly with the design-build team, creating a cohesive and transparent relationship.

2. Accelerated Project Timelines

The integration of design and construction allows for overlapping phases, a practice known as "fast-tracking." For example, site preparation and foundation work can begin while design details for upper levels are still being finalized. This overlap minimizes downtime and significantly reduces overall project duration.

Moreover, the streamlined communication inherent in the design-build model helps to avoid delays caused by design discrepancies or disputes between stakeholders. With everyone on the same team, decisions are made more swiftly, keeping the project on schedule.

3. Cost Savings and Budget Control

By aligning design and construction under one contract, the design-build process provides a more accurate estimate of costs early in the project. This holistic approach helps owners avoid the budget surprises that often plague traditional DBB projects.

The design-build team is incentivized to stay within budget because they are responsible for both the design and construction phases. Additionally, the collaborative environment allows for value engineering, where cost-effective solutions are identified and implemented without compromising quality or functionality.

4. Reduced Risk for the Owner

In traditional DBB projects, the owner assumes the risk of coordinating between designers and contractors. If conflicts arise—such as a design that is impractical or incompatible with the construction plan—the owner often bears the burden of resolving them.

In the design-build model, the design-build team assumes full accountability for the project's success. This single-source responsibility reduces the owner's exposure to risk and simplifies dispute resolution, as there is no ambiguity about who is accountable for meeting project objectives.

5. Enhanced Innovation and Flexibility

The integrated nature of design-build fosters a culture of innovation. Designers and builders collaborate from the outset, pooling their expertise to develop creative solutions to complex challenges. This synergy often results in unique design elements, improved construction techniques, and more efficient use of materials.

Furthermore, the flexibility of the design-build model allows for adjustments to be made mid-project without disrupting the workflow. Because the team is unified, changes can be quickly assessed and implemented, ensuring that the project adapts to evolving needs or unforeseen circumstances.

6. Improved Quality Control

With a single team responsible for the entire project, quality assurance is built into every stage of the process. The design-build team is motivated to deliver high-quality results because their reputation and financial incentives depend on the project's success.

Additionally, the close collaboration between design and construction professionals ensures that the final product aligns with the owner's vision and meets all performance standards.

Real-World Applications of Design-Build

The design-build approach is well-suited for a wide range of projects, from large-scale infrastructure developments to custom residential builds. Its versatility has made it a preferred choice in industries such as healthcare, education, and transportation, where complex requirements and tight deadlines are common.

For example, many municipalities use design-build to accelerate the delivery of critical infrastructure, such as bridges and water treatment facilities. Similarly, private developers often rely on this method for commercial projects, where speed to market and cost efficiency are paramount.

How GPRS Supports Design-Build Projects

The design-build process represents a transformative shift in how construction projects like SFO’s expansion are delivered. By integrating design and construction into a cohesive and collaborative workflow, this approach offers substantial benefits, including faster timelines, lower costs, and improved quality.

GPRS provides accurate as-built site data to help design-build projects move seamlessly through the design and construction process.

Our utility locating, precision concrete scanning, pinpoint leak detection, and NASSCO-certified video pipe inspection services help you prevent subsurface damage and provide you with an accurate, complete picture of the subsurface infrastructure on your job site.

And our 3D laser scanning, photogrammetry, and SiteMap^® (patent pending) infrastructure mapping software provide existing conditions documentation, and construction & facilities project management services to help you plan, design, manage, dig, and ultimately build better.

What can we help you visualize?

Facility management plays a critical role in maintaining the value, efficiency, and safety of buildings and campuses.

A significant component of this management is the facility audit—a structured, thorough evaluation of a facility's physical assets, including its infrastructure, policies, and procedures. Facility audits have evolved in recent years, moving from traditional paper-based reports to dynamic digital resources that provide ongoing value. Let’s explore this evolution and see how modern tools and technologies have redefined facility audits for today's needs.

Understanding the Basics of a Facility Audit

A facility audit is an in-depth examination designed to assess the physical condition and operational efficiency of a building or campus. This process encompasses a broad range of elements, including HVAC systems, structural integrity, plumbing, electrical systems, and safety protocols. Facility audits may also involve an analysis of documentation related to maintenance procedures, operational policies, and the current usage of space.

Traditionally, facility audits served two primary purposes: to inform maintenance planning and to identify any immediate repairs necessary for building functionality or safety. The data gathered would typically be recorded in lengthy, paper-based reports or static files that were updated only at set intervals. As demands and expectations around operational efficiency and cost-effectiveness have grown, so has the scope of these audits, along with the tools used to perform them.

The Traditional Facility Audit: Static and Labor-Intensive

Historically, facility audits were conducted manually by facility management teams or outsourced consultants. Professionals would physically inspect each component of a building, noting any maintenance needs, structural issues, or compliance gaps. The resulting data would be compiled into a comprehensive report, detailing each finding and providing recommendations. This report often took weeks, if not months, to complete, especially for larger facilities with complex infrastructure.

One major limitation of this traditional approach was that the reports quickly became outdated. A facility audit would typically only be performed every three to five years, or even less frequently, leaving significant gaps in information. Buildings are dynamic spaces, subject to wear and tear, renovations, and changing usage patterns. In the time between audits, facility managers would often rely on their memory or ad-hoc records, increasing the likelihood of overlooked repairs and unanticipated costs.

The Transition to Digital Solutions

The first significant shift in facility audits came with the rise of digital record-keeping. With the advent of spreadsheets and digital databases, facility managers could more easily store, sort, and retrieve information about maintenance schedules, repairs, and building inspections. This helped streamline data collection, reducing some of the administrative burden associated with traditional paper reports.

However, while digital records made storage and access more manageable, the core process of facility auditing remained largely the same—facility managers or auditors still conducted manual inspections, documented findings, and updated the records on a periodic basis. The information was still static, representing only a snapshot in time. For a more proactive, real-time understanding of building conditions, a new approach was necessary.

The Role of Building Information Modeling (BIM) and 3D Scanning

In recent years, Building Information Modeling (BIM) and 3D laser scanning technology have revolutionized the facility audit process. BIM enables the creation of digital models that represent every aspect of a building, from structural components to mechanical systems. With BIM, facility managers can maintain an up-to-date digital representation of their building, incorporating real-time data on asset conditions, space usage, and maintenance history.

3D laser scanning technology has enabled auditors to capture detailed, precise representations of a building’s physical conditions. These scanners use laser technology to generate a high-resolution, three-dimensional model of a facility’s interior and exterior spaces. By creating a digital twin of the building, facility managers and stakeholders can perform virtual walkthroughs, assess structural details remotely, and even simulate potential modifications.

The integration of BIM and 3D laser scanning marks a dramatic departure from the traditional facility audit model. Instead of relying on sporadic, labor-intensive physical inspections, facility managers can now perform continuous, real-time assessments. This dynamic approach allows them to detect and address issues before they become critical, improving overall building performance and extending the life of assets.

Continuous and Data-Driven Audits

Today, facility audits have evolved into an ongoing, data-driven process, thanks in large part to advancements in cloud computing and IoT (Internet of Things) devices. IoT sensors can be embedded throughout a building to monitor everything from temperature and humidity to structural integrity and occupancy levels. This data is sent to a central platform, which can be accessed by facility managers and other stakeholders in real time.

By combining IoT data with BIM and 3D scanning, facility managers can now create a “living” audit—a constantly updated digital model of a building that reflects its current conditions and usage patterns. This approach allows managers to monitor key performance indicators (KPIs) continuously, ensuring that any deviations from optimal conditions are promptly identified and addressed. For example, if an IoT sensor detects that the temperature in a storage area has risen beyond acceptable levels, facility managers can investigate immediately, preventing potential damage to sensitive equipment or materials.

Continuous, data-driven facility audits also allow for predictive maintenance. By analyzing trends and patterns in the data, facility managers can anticipate when certain assets are likely to fail or require maintenance, allowing them to schedule repairs before issues arise. This proactive approach not only minimizes downtime but also reduces maintenance costs and extends the life of critical building systems.

Benefits of the Evolved Facility Audit Process

The modern approach to facilities auditing provides a range of benefits, making it a valuable tool for organizations of all types and sizes. Some key advantages include:

1. Enhanced Accuracy: With BIM, 3D scanning, and IoT, facilities audits provide a precise and comprehensive view of a building’s condition. This accuracy enables more informed decision-making, helping organizations allocate resources more effectively.
2. Increased Efficiency: By replacing manual inspections with digital models and automated monitoring, facility managers can conduct audits more quickly and with fewer disruptions to building occupants.
3. Proactive Maintenance: Continuous, real-time monitoring enables predictive maintenance, reducing the likelihood of equipment failures and emergency repairs.
4. Improved Compliance and Reporting: Regulatory compliance is a major concern in many industries, and the detailed documentation provided by modern facilities audits can help organizations demonstrate adherence to safety and operational standards.
5. Enhanced Space Management: With real-time data on occupancy and usage patterns, facility managers can optimize space allocation, making better use of available resources.

The Future of Facilities Audits: Digital Twins and AI

Looking ahead, the future of facilities audits will likely involve even more sophisticated technologies, such as digital twins and artificial intelligence (AI).

A digital twin is a highly accurate, virtual replica of a physical building, capable of simulating different scenarios and predicting the impact of various changes. Digital twins can integrate data from multiple sources, including IoT devices, 3D laser scans, and BIM, to provide a truly comprehensive view of a facility’s conditions.

AI has the potential to enhance facility audits by analyzing large datasets and identifying patterns that might not be apparent to human auditors. For example, AI algorithms can analyze historical data to identify trends, optimize maintenance schedules, and even recommend energy-saving strategies. As these technologies continue to develop, facility audits will become even more valuable, empowering organizations to manage their buildings with unprecedented precision and foresight.

GPRS & SiteMap^® Enhance Facility Audits

Through BIM, 3D laser scanning, IoT, and emerging technologies like digital twins and AI, facility audits are evolving into continuous management systems, offering a living snapshot of building conditions that can be updated and optimized over time.

GPRS’ 3D Laser Scanning Services support the modern facility audit process by providing comprehensive, 2-4mm accurate data on your facilities and campuses. We capture accurate as-built documentation of buildings and infrastructure with Leica laser scanners to deliver point clouds, 2D CAD drawings, and 3D BIM models that expedite project planning and execution.

All this accurate, field-verified data is securely accessible 24/7 through SiteMap^® (patent pending), GPRS’ project & facility management application that provides accurate existing conditions documentation to protect your assets and people.

SiteMap^® is a single source of truth for your critical infrastructure data, eliminating the mistakes caused by miscommunications and allowing you to plan, design, manage, dig, and ultimately build better.

GPRS is currently scheduling live, personal SiteMap^® demos. Click below to schedule your demo today.

Frequently Asked Questions

What deliverables can GPRS provide when performing 3D laser scanning services?

We can provide 3D modeling in many formats such as:

• Point Cloud Data (Raw Data)

• 2D CAD Drawings

• 3D Non-Intelligent Models

• 3D BIM Models

• JetStream Viewer

Customizable deliverables upon request include:

• Aerial Photogrammetry

• Comparative Analysis

• Deformation Analysis

• Digital Drawings of GPR Markings

• Floor Flatness Analysis/Contour Mapping

• New Construction Accuracy Analysis/Comparative Analysis

• Point Cloud Modeling Training Webinars

• Reconciliation of Clients 2D Design Drawings

• Reconciliation of Clients 3D Design Model

• Structural Steel Shape Probability Analysis

• Template Modeling

• Volume Calculations

• Wall Plumb Analysis

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.

In 2023, Dexter Southfield School’s new facility director sought a holistic review of the Brookline, Massachusetts private school’s 36-acre, 58-year-old campus. The school also wanted a virtual walkthrough of its property to use in marketing material.

A contractor Dexter Southfield had previously used put the facility director in touch with LLB Architects, which along with their partners at Pragmaticam had developed a different approach to what has traditionally been known as a “facilities audit”: a detailed review of a facility’s assets, policies, procedures, and components.

LLB and Pragmaticam sought to take the facilities audit process from its traditional roots of static, periodic updates into a future where as-built information was stored in a dynamic, continuously updatable database format accessible whenever, and wherever the information is needed.

They partnered with Existing Conditions, a GPRS company, which utilized its professional 3D laser scanning and 3D Building Information Modeling (BIM) services to provide Dexter Southfield with a comprehensive interior and exterior existing conditions model, and virtual walkthrough of its 36-acre campus.

About the Project

Pragmaticam is led by former LLB Principal, Neal Bijlani, who spent nearly two decades with the architecture firm and was a key part of the team exploring a dynamic alternative to the traditional facilities audit model.

“There was an opportunity to spin that division off, and so I’m acting as principal for the Pragmaticam group and still collaborating pretty closely with LLB,” Bijlani said.

Formerly known as Lerner Lads Bartels, LLB specializes in educational institutions and research facilities in the New England area.

“We strive to do projects that are highly contextual, focused around people and are innovative in terms of detailing and integrating technology into the process,” said LLB Principal, Enno Fritsch.

LLB Architects is a longtime Existing Conditions client. That relationship has evolved over time.

“It’s only gotten better and more efficient in understanding what deliverables Existing Conditions provides, and then how we help to supplement and really craft the scope of work between our teams,” Bijlani said. “…[At Dexter Southfield], we needed to use our resources at the firm for different purposes. We needed to focus more on the design, architecture, and planning aspects of the project, and so having an independent and more experienced team in the field to do field verification just made the project be able to be on time and on budget.”

Like LLB and Pragmaticam, Existing Conditions was exploring innovative ways to document project sites and store that information so that it could be easily accessed and regularly updated.

“It’s about having their most important assets documented and setting up a system that enables us and Pragmaticam to work together to almost be their CAD and BIM department,” said GPRS/Existing Conditions Senior Account Executive for Reality Capture, Mark Catalano. “These facilities groups wear a lot of different hats, and they’re constantly making sure that these facilities are up to date. There’s a lot of maintenance and day-to-day things required with that, but something that oftentimes gets left at the wayside is making sure that their assets, the buildings, are documented properly, the changes that come with them, making sure they have the accurate drawings in a file management system format where they can ensure that they have the most accurate and up-to-date drawings of their campus.”

In the summer of 2023, Existing Conditions deployed its Project Managers to the school to 3D laser scan its 15 buildings and the surrounding grounds. The on-site work had to be completed in the relatively tight window when students were not on campus.

“It’s really important to be able to get as many of our field crew guys there at one time, so that we can really minimize the amount of time that we are on site,” explained Holly Vaillancourt, Director of Operations for GPRS and Existing Conditions’ Client Solutions Team. “I worked really closely with our Field Operations Team, and we had anywhere from one-to-five guys at the campus at any given point to get us through all of the buildings effectively and efficiently.”

Beyond having to complete the 3D laser scanning during the summer break, the Existing Conditions team also had to navigate around ongoing construction work on campus.

“A lot of campuses like to do their painting and rehab work, or renovations and updates, during those summer hours as well,” Vaillancourt said. “So, there was a little bit of a challenge in working around existing contractors being at the campus as well, but we managed and, if we had to go back and revisit a [building or room] after the renovations were complete, we certainly did do that…”

Once 3D laser scanning was complete, Existing Conditions’ in-house Processing Team compiled the data into the virtual walkthrough and other drawings & models requested by LLB Architects, Pragmaticam, and Dexter Southfield.

The school’s new facility director received a comprehensive assessment of the campus and its buildings that he needed to responsibly allocate resources for operations & maintenance (O&M). And the school received the virtual walkthrough that will allow prospective students and their families to tour the campus from anywhere in the world.

“I think the walkthrough is an example of how to leverage a deliverable,” Fritsch said. “It’s done to support the modeling, but then you can also use it so that the client can leverage it for their use and their marketing purposes. So, that’s like you get a double benefit. And of course, leveraging the data that Existing Conditions generated and merging it with the assessment work done by us and the consultants in a comprehensive database, which is then part of the deliverable for the client going forward to manage, that is how you leverage that technology going forward so it’s going to be a useful set of information for years to come. And they can update it as they go, and buildings are renovated, so it’s the basis for future improvement for years to come, rather than just having one report.

“This will change the way they manage their facility.”

How SiteMap^® Aids Project Management

Existing Conditions, LLB Architects, and Pragmaticam’s vision of a living facility assessment echoes the accurate, above and belowground existing conditions documentation that GPRS offers through SiteMap® (patent pending), our facility and project management platform.

SiteMap^® takes the accurate, complete, & field-verified data collected by GPRS’ SIM and NASSCO-certified Project Managers and puts it in one secure, yet easily accessible platform. From any computer, tablet, or smartphone, you and your team can plan around the same set of data points, eliminating the costly and potentially dangerous mistakes that come from miscommunications.

GPRS team members are currently scheduling live, personal SiteMap^® demos. To learn how SiteMap^® can help you and your next project, click below to schedule your 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 an 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 any as-built documentation project 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.

An engineering and environmental consulting firm hired to evaluate the groundwater remediation system of an abandoned mine in Colorado looked to GPRS to help map and investigate the integrity of the buried portions of this critical infrastructure.

GPRS Project Manager Conner Sorensen was tasked with locating, mapping, and inspecting the lines that pump contaminated groundwater out of the disused mine and into retention ponds, where the hazardous material can be removed from it.

Underground abandoned mines pose a serious threat to community water supplies, rivers, streams, and aquatic life. When rainwater fills these chambers, it becomes contaminated with the leftover metals or other material that was being mined and any hazardous material used during the mining process. If not properly remediated, this contaminated groundwater can seep into the soil, poison waterways, and more.

That‘s what happened in 2015, when pressurized water began leaking out of the EPA-owned Gold King Mine near Silverton, Colorado. As the organization was investigating the ongoing remediation of the mine, excavation activities led to roughly 3 million gallons of mine wastewater and tailings – including heavy metals - spilling into Cement Creek, a tributary of the Animas River. According to an article in the Colorado Encyclopedia, the contaminated runoff turned the normally green waters of the Animas a bright orange-brown as it made its way downstream through Durango to the San Juan River and, eventually, to Lake Powell.

Studies of the Animas River found that the spill had little to no long-term effect on the waterway – largely because it had already contained high levels of heavy metals from thousands of old mines in the region. This contamination, according to Colorado Encyclopedia, causes stretches of the river to be virtually devoid of aquatic life and renders the fish populations inhabiting the river near Durango incapable of reproducing.

The Gold King Mine disaster served as the catalyst for establishing the Bonita Peak Mining District Superfund Site, enabling access to federal funding and resources to address the issue of mine drainage.

Sorensen explained that the owners of the mine where he was working were planning expansions to the remediation infrastructure and contacted the engineering and environmental consulting firm for help properly assessing their existing system prior to beginning any excavation.

“Basically, I was just locating everything so that, moving forward, when they begin construction and expand the remediation site, they can do so without hitting anything and they won’t be putting new stuff on top of old, bad pipe,” Sorensen said.

Sorensen began by deploying a remote-controlled pipe inspection rover and push-fed scope, both of which were equipped with sondes: instrument probes that allow GPRS Project Managers to map buried infrastructure from the service utilizing electromagnetic (EM) locators.

EM locators detect electromagnetic signals radiating from the sondes, or from metallic pipes or cables. They can measure the depth of the buried utility as well as locate it.

The rover and scope Sorensen utilized were outfitted with CCTV cameras which captured video and photographic evidence of the condition of the buried water lines. Sorensen used this evidence to compile a detailed report for our client.

“No defects were found to exist in the system,” he said.

In addition to marking the locations of the buried lines on the surface using flags and spray paint, Sorensen provided the client with a digital, geolocated map of his findings via SiteMap^® (patent pending), GPRS facility & project management application designed to provide existing conditions documentation to protect our clients’ assets and people.

The utility map identified all access points to the remediation system, correlated that information with the captured video of the interior of the pipes, and indicated the size, material, and depth of each section.

“The report was helpful in documenting the existing condition of the system,” Sorensen said. “And the SiteMap^® deliverable was helpful to have the locations recorded for future reference.”

From environmental due diligence projects to new construction, GPRS Intelligently Visualizes The Built World^® to keep your projects on time, on budget, and safe.

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Frequently Asked Questions

What is Video Pipe Inspection (VPI)?

Video Pipe Inspection or VPI is a sewer inspection service using CCTV video cameras to mitigate or prevent infrastructure damage by inspecting underground water, sewer lines, and lateral pipelines. GPRS's NASSCO certified technicians can locate clogs, investigate cross bores, find structural faults and damages, and conduct lateral sewer line inspections.

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.

What size pipes can GPRS inspect?

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

The Kenisco-Eastview Connection (KEC) Tunnel Project has a contractor: Frontier-Kemper Constructors, according to information published in Engineering News-Record.

The parent company of Frontier-Kemper is Tutor Perini Corporation, who announced that they’d won the contract from The New York City Department of Environmental Protection (DEP) on October 23, 2024. The project is one of DEP’s $3 billion in capital commitments throughout Westchester County “that will improve the nation’s largest municipal water supply system.”

That system serves some 9 million people in New York City and Westchester County, and its Kenisco-Eastview tunnel will be the most expansive tunneling project in the area since the 1940s. It will run approximately two miles and is expected to transport 2.6 billion gallons daily from the Kenisco Reservoir to the Catskill/Delaware Ultraviolet Light Disinfection Facility (CDUV) in Eastview.

The project’s groundbreaking took place in July of 2024 and one of its benefits, according to DEP, is that the tunnel will give them the ability to take other facilities offline for maintenance and inspection while still meeting the region’s water needs.

“Creating additional redundancy in our vital water system is an essential investment for the long-term resilience of the remarkable feat of engineering that provides more than 9 million New Yorkers with a reliable source of pristine tap water,” said DPE Commissioner Rohit T. Aggarwalla.

The mechanics of boring and creating a two-mile long tunnel that can withstand the wear of 2.6 billion gallons per day in volume is momentous. The powerful tunnel boring machines (TBMs) that will be used will excavate horizontally, removing the excavated material behind them. It is a process fraught with complications even through a clear expanse of ground, but in the case of the KEC tunnel, it has to traverse developed land, uneven terrain, and multiple highways and roads.

Anyone deploying a TBM, which is often referred to as a “mole,” needs to be certain that their bore hole will not intersect any underground utilities, or other subsurface facilities.

For instance, typically, utilities are run alongside roadways or in the berm of a highway. When those roads are expanded or moved, which happens often, the utilities often move too. However, the as-builts – updated existing conditions drawings and utility maps – are not updated.

That means that just like when utilizing trenchless technology to install fiber lines, the mole could easily hit and/or sever a utility line, causing service interruptions, hazardous sanitary sewer or gas leakage in the surrounding area, or a serious accident.

And with a project as large as the KEC, having the ability to immediately update, share, and communicate those utility maps and as-builts is of paramount importance. That’s why a geolocated GIS layered utility map is vital to a successful excavation, whether for a tunnel or a straight dig.  

How Does Ultraviolet Light Disinfection Work?

Ultraviolet Light Disinfection is one of the primary water treatment tools to fight waterborne pathogens and infectious agents. Just a few of the pathogens that could be found in untreated water include E coli, Salmonella, Enteroviruses like polio, coxsackie, Hepatitis A, Rotavirus, and other viruses that can cause meningitis, cholera, and dysentery, among other serious illnesses.

“The effectiveness of a UV disinfection system depends on the characteristics of the wastewater, the intensity of the UV radiation, the amount of time the microorganisms are exposed to the radiation, and the reactor configuration,” according to the EPA’s Wastewater Technology Fact Sheet.

The mechanics of the system are designed to transfer electromagnetic energy to the genetic material of an organism – either its RNA or DNA – via a mercury arc lamp/mercury vapor. Upon penetrating the organism’s cell wall, it destroys the cell’s reproductive ability. The UV radiation that is generated by discharging electricity via mercury vapor, penetrates the cell’s genetic material and “retards their ability to reproduce,” according to the EPA Fact Sheet.

The efficacy of UV disinfection is depends on a variety of factors:

• Characteristics of the wastewater itself (concentration of colloidal and particulate materials)
• Intensity of the UV radiation applied
• The length of radiation exposure
• The configuration of the reactor

The basic composition of a UV light disinfection system consists of mercury arc lamps, a reactor, and ballasts. The radiation source is a low pressure or medium pressure mercury arc lamp that has high and low intensities. There are many specificities about the optimum light wavelength and intensity, which can be found within the EPA’s Fact Sheet.

Two reactor configurations make up the bulk of the UV system reactors: contact type reactors or non-contact type reactors. You can see the basic make up of the UV light system in this diagram:

A Brief History of UV Light Disinfection for Water Treatment

UV light disinfection has been around since the early 1900s and was first used municipally in France, either at Anon in 1906 or Marseilles in 1909. It began gaining acceptance in the 1970s as wastewater treatment plants looked for alternatives to disinfection byproducts (DBPs) formed in chlorinated water disinfection. The U.S. EPA approved UV in 2003, which led to more widespread adoption.

UV Water Treatment Market Outlook for 2024 and Beyond

While there is no reliable information on the number of physical UV light disinfection water treatment facilities in the U.S., the market appears to be booming. According to industry watchers and publications like Water Online, the UV water treatment market was considered “highly consolidated” and “saturated” in 2019, with a value of $145 million, yet the overall UV disinfection sector (that includes applications other than water) grew to $510 million in 2023, and is expected to top out in excess of $580 million in 2024. The significance of COVID-19 on the market explosion cannot be overstated, but is anticipated to reach more than $2 billion by 2034.

When it comes to municipal water and wastewater, GPRS helps customers lead the safety charge by Intelligently Visualizing The Built World^® with utility mapping, NASSCO-certified CCTV video pipe inspections, and accurate subsurface existing conditions capture. Thanks to our national footprint, you can always find a GPRS utility locating Project Manager near you, and our Rapid Response deployment means you can have interactive, layered, and accurate utility maps, often within 48 hours of your call.  

What can we help you visualize?