Phased Dual GPR Application Slashes Utility Mapping Time for Data Center

• The client needed accurate utility location and mapping of existing drainage lines to effectively plan construction on their 1,500-acre site
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• Planning & design required the immediate location of key drain lines over a 30-acre area with an additional 500 acres of drain lines mapped at minimum prior to construction
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• Much of the site was open land with few aboveground facility markers

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• A GPRS team including the estimator and the Senior V.P. of Field Support devised a multi-phase solution that would be comprehensive, cost effective, and fast: A multi-phased, dual application approach utilizing traditional GPR and a high-speed GPR array
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• In just 46 days, two Project Managers mapped 530 acres:
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  • Phase I: 30 acres of GPR & high-speed GPR array use to target key drain lines
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  • Phase II: 500 acres of GPR & high-speed GPR array use to find and map drain lines
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  • Additional phases may include scaling the high-speed array scanning over the remaining 1,500-acres

• The project planning and construction can proceed, building any additional drainage around the existing subsurface infrastructure
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• The remaining 1,000 acres can be covered more easily based on Phase I and Phase II findings
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• Should the client elect for a comprehensive full site locate, the initial drainage phases will speed those results