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Legacy Inspection

Legacy Inspection

Legacy inspection services locate and assess existing sewer lines and laterals

Legacy inspections identify cross bores among existing sewer infrastructure that is within areas marked for excavation.

Legacy inspection services provide cross bore awareness and excavation guidance

National Underground Group’s legacy inspection provides comprehensive inspection and utility asset locating services to identify cross bores among existing sewer infrastructure buried in areas marked for excavation by directional drilling contractors. We also conduct risk assessments of regions and make recommendations for the best place to make inspections in locations where underground drilling has recently been performed.

Our comprehensive data collection can help mitigate further damage if operational issues occur. All records are maintained by cloud data management software and are accessible 24/7.

Advanced inspection services enhance legacy project safety

Existing utility lines installed before detailed records and schematics of wastewater infrastructure were produced can easily be damaged by unaware drilling crews attempting to install new subsurface lines in the same area. This can harm crews and the environment, damage infrastructure and equipment, and cause utility outages.

By applying the latest robotic lateral launch systems, we can provide a quick and thorough examination of the main, each connection and the service lateral up to the foundation of a structure. Knowledge of cross bores and other sewer infrastructure condition issues enables crews to conduct safer excavations and installations. This technology also makes our inspections easier and less intrusive for crews and property owners.

GIS-based time-stamped library chronicles cross bore program progress

Conflicts can exist between mains and service connections for crossing lines. National Underground Group’s legacy inspection provides a quality data management process by building a geographic information system (GIS)-based time-stamped library of events as cross bore programs progress. This data management process includes tracking production, isolating inconclusive cross bore inspections for further review and date-stamping final cleared locations.

Our data management process utilizes cloud technologies to link inspection data (including videos and GPS observations) to GIS-based mapping systems, which results in a comprehensive, date-stamped library vetted by a highly experienced quality-control team. Users have full viewer access to the GIS mapping software through a login. Successful data management answers the questions of how and when, while enabling future generations to access quality data.

cross bore inspection

Service Lines

underground location remote visual inspection

Pro-Pipe

Pro-Pipe provides cross bore inspection and pre- and post-construction inspections for trenchless installations. Utilizing advanced technology and sophisticated equipment, Pro-Pipe digitally maps (GIS) underground infrastructure, provides condition scoring for prioritization and assessment, and offers comprehensive maintenance and rehabilitation.

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underground location remote visual inspection

Pro-Pipe

Pro-Pipe provides cross bore inspection and pre- and post-construction inspections for trenchless installations. Utilizing advanced technology and sophisticated equipment, Pro-Pipe digitally maps (GIS) underground infrastructure, provides condition scoring for prioritization and assessment, and offers comprehensive maintenance and rehabilitation.

Go to Pro-Pipe Go to Pro-Pipe Go to Pro-Pipe
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