3D Laser Scanning Services in Tennessee

GPRS used 3D laser scanning and BIM modeling to support Whiting-Turner’s renovation of one of the most critical telecom hubs on the West Coast.

GPRS partnered with Whiting-Turner to 3D laser scan 200,000 square feet of the Pittock Block Internet Exchange in Portland, Oregon, an eight story, 302,262 square foot carrier hotel, data center, and office space. Built in 1914, the historic building was adaptively reused from an electric substation into a modern data center that now hosts one of the highest densities of telecom networks and carriers on the West Coast. Whiting-Turner planned renovations to tenant and common areas on the ground, mezzanine, fourth, and eighth floors, including new entry vestibules, infrastructure upgrades, support rooms, and façade modifications. To support this work, GPRS captured as-built data of the building to generate a point cloud, CAD drawings, and Autodesk Revit Model.

GPRS partnered with Whiting-Turner to 3D laser scan 200,000 square feet of Pittock Block Internet Exchange in Portland, Oregon, an eight‑story, 302,262 s.f. carrier hotel, data center, and office space. Built in 1914, this historic building underwent adaptive reuse, evolving from an electric substation distribution location into a modern data center that now houses the second greatest density of telecom networks and carriers on the West Coast. Whiting-Turner was planning a renovation of tenant and common areas on the ground floor, mezzanine level, fourth floor, and eighth floor, including the construction of new entry vestibules, infrastructure and equipment upgrades, and support rooms as well as modifications to ground-floor facades. To support the renovation, GPRS reality captured as-built data of the building to generate a point cloud, CAD drawings, and an Autodesk Revit Model.

Highlights THE BOTTOM LINE GPRS used 3D laser scanning and BIM modeling to support Whiting-Turner’s renovation of one of the most critical telecom hubs on the West Coast. INDUSTRY Data Center SERVICE 3D Laser Scanning, Mapping & Modeling LOCATION Portland, Oregon GPRS Insight "This property spanned an entire city block and featured a central lightwell. My 3D scanning training and experience helped me to accurately tie in data from the lightwell to the rest of the building. The roof also contained an extensive cooling system to ensure that hot air generated by the data center is expelled to prevent damage to the servers." Daniel Jones, GPRS Project Manager Deliverables Point Cloud, 2D CAD Drawings, Autodesk Revit 3D BIM Model PROJECT APPLICATION GPRS delivers precise as‑built documentation to support data center construction, retrofits, and facility management. Through 3D laser scanning, CAD, and BIM modeling, we provide accurate data that empowers owners, contractors, and design teams to confidently design, build, operate, and maintain their facilities. Task GPRS partnered with Whiting-Turner to 3D laser scan 200,000 square feet of the Pittock Block Internet Exchange in Portland, Oregon, an eight story, 302,262 square foot carrier hotel, data center, and office space. Built in 1914, the historic building was adaptively reused from an electric substation into a modern data center that now hosts one of the highest densities of telecom networks and carriers on the West Coast. Whiting-Turner planned renovations to tenant and common areas on the ground, mezzanine, fourth, and eighth floors, including new entry vestibules, infrastructure upgrades, support rooms, and façade modifications. To support this work, GPRS captured as-built data of the building to generate a point cloud, CAD drawings, and Autodesk Revit Model. PROBLEM Renovations and infrastructure upgrades needed to be completed without disrupting ongoing tenant operations or critical systems. The facility could not experience downtime, as it housed 16 fiber optic carriers, 179 service providers, and seven subsea cables critical to its role as a global grade Internet Exchange. Renovations across multiple levels, including the ground, mezzanine, fourth, and eighth floors, had to modernize shared spaces, infrastructure, and systems while maintaining uptime. Entry vestibules needed to be updated in a way that enhanced security, yet preserved smooth tenant and visitor flow. Specialized rooms had to be designed and constructed to support IT infrastructure and facility operations while meeting strict technical requirements. Ground floor facades required modification while preserving the building’s historic character. Infrastructure and systems essential to data center operations had to be upgraded to ensure reliability, scalability, and compliance with industry standards. Scheduling challenges had to be addressed when certain areas were unavailable for scanning or construction due to demolition or phased work. ‍ Solution GPRS’ Project Manager captured 200,000 square feet of space with the Leica RTC360 scanner at 2-4mm accuracy, completing 504 individual laser scans. Two mobilizations were conducted to ensure complete coverage of the basement, levels 1–4, level 8, and the roof. All architectural, structural, and MEP systems, including data closets and cooling systems, were documented in a colorized point cloud, capturing walls, floors, ceilings, doors, windows, roof infrastructure, exposed columns, beams, stairs, piping, conduit, and ducts. An Autodesk Revit 3D BIM model was generated to provide precise details of the data center’s spatial relationships, geometry, structure, and systems. From the BIM model, 2D CAD drawings were produced to support pre-construction planning, enabling teams to quickly understand the project scope before advancing into detailed 3D modeling. ‍ Benefits 3D laser scanning delivered a comprehensive, real time digital view of the data center, capturing precise structural and MEP layouts that seamlessly integrated with CAD and BIM for accurate planning, clash detection, and efficient construction sequencing. Deliverables were shared via SiteMap, GPRS’ secure, cloud based platform and mobile app, which centralized point cloud data, CAD files, and BIM models into an interactive tool for easy access and collaboration. With accurate facility as-builts, errors, change orders, delays, and costs were reduced during renovation. Cooling system upgrades were enhanced through precise modeling of roof infrastructure. Whiting-Turner successfully delivered turnkey data center renovations to meet tenant needs.

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GPRS saved the GC untold labor hours and cost overruns by detecting clashes, finding deviations before they caused expensive rework, and discovering the buried slab.

Complete subsurface mapping and millimeter-accurate aboveground measurements for a top-down, 360° visualization of a hospital wing and parking area to support a hospital expansion.

The addition is designed to occupy an existing parking lot for hospital employees, patients, and visitors. GPRS performed utility locating, video pipe inspection, and 3D laser scanning to create a comprehensive map and 3D model of the medical center’s infrastructure, both above and below ground.

TASK: Complete subsurface mapping and millimeter-accurate aboveground measurements for a top-down, 360° visualization of a hospital wing and parking area to support a hospital expansion. PROJECT APPLICATION: Rudolph Libbe, a longtime GPRS client and partner, oversaw the construction on the expansion of a northwest Ohio medical center. The addition is designed to occupy an existing parking lot for hospital employees, patients, and visitors. GPRS performed utility locating, video pipe inspection, and 3D laser scanning to create a comprehensive map and 3D model of the medical center’s infrastructure, both above and below ground. PROBLEM SOLUTION BENEFITS n Rudolph Libbe received millimeteraccurate laser scan data and an integrated 3D BIM model to precisely design and plan the building addition during preconstruction. n Non-destructive utility-locate methods reduced the number of unknown utilities and obstructions for the design and construction teams. n GPRS’ as builts allowed Rudolph Libbe to plan the new foundation and identify areas where further investigation would be warranted to prevent design and utility clashes. n With comprehensive field services provided by GPRS, Rudolph Libbe saved time and money on change orders, and eliminated subsurface damage during the construction process. With parts of the medical center’s campus dating back to the mid- 1800s, inaccurate as built data and unknown subsurface obstructions could jeopardize construction planning. n It was imperative that the proposed locations of the structural foundation and planned utilities coordinated with the existing conditions. n Rudolph Libbe desired 3D as builts to plan and complete the building addition, such as structural and utility tie-in information. n Traditional exploration methods typically include “soft” excavation methods over the entire building footprint. This option is expensive, time consuming, and requires tremendous coordination. GPRS utilized ground penetrating radar (GPR) and electromagnetic (EM) locating to map the hospital’s utilities. n Video pipe inspection (VPI) recorded the precise location and condition of the facility’s sewer lines, detailed in a NASSCO-certified report. n 3D laser scanning documented as built site data and utility maps to create 2D CAD drawings and a 3D BIM model for virtual design and construction. n GPRS participated in coordination meetings with construction and design team members. NO ONE HAS GONE TO THIS EXTENT TO MAP A SITE ABOVE AND BELOW GROUND. IT WAS IMPERATIVE THAT RUDOLPH LIBBE HAD ACCURATE AS BUILT SITE DATA AND UTILITY MAPS WITH CRITICAL STRUCTURAL AND UTILITY TIE-IN INFORMATION.” JAIME ALTHAUSER | FIELD SUPPORT DIRECTOR, GPRS

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3D Laser Scanning

GPRS provided critical dimensional verification to ensure a flawless installation, reduce delays, clashes, and other unforeseen challenges for the project team

GPRS partnered with two renewable energy companies constructing an offshore wind farm to verify that the prefabricated components of several wind turbines met the specified design requirements

GPRS aids renewable energy projects with precise as-built data for design, construction, and maintenance. From solar panel installation to wind farm construction, we deliver accurate data for your project needs. 3D laser scanning captured complete and accurate dimensional information to verify that the prefabricated components were in tolerance for the design drawings Precast concrete foundations were laser scanned and a CAD comparison was performed to confirm that the dimensions matched the design planSubstation topside steel platforms were laser scanned to provide accurate as-built dimensions of all three levels and report the maximum outside diameter of the structure The Mapping & Modeling Team delivered 2D CAD drawings and a 3D BIM model, detailing the as-built dimensions and deviation between the design model and actual component 3D laser scanning captured complete and accurate dimensional information to verify that the prefabricated components were in tolerance for the design drawingsPrecast concrete foundations were laser scanned and a CAD comparison was performed to confirm that the dimensions matched the design planSubstation topside steel platforms were laser scanned to provide accurate as-built dimensions of all three levels and report the maximum outside diameter of the structureThe Mapping & Modeling Team delivered 2D CAD drawings and a 3D BIM model, detailing the as-built dimensions and deviation between the design model and actual component

The construction of a wind turbine required shipping prefabricated components on a vessel out to sea and using a crane to assemble Verification of the prefabricated component measurements within tolerance of the design drawings ensured a flawless installation Unique construction conditions meant there was no time to troubleshoot installation problems or add additional site visits and time at sea

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3D Laser Scanning