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Virtually Performed Inspection of a Subterranean Tunnel Using 3D Laser Scanners and Lidar Software

The Laramie-Poudre Tunnel is an early transmountain tunnel in the state of Colorado. The tunnel's primary purpose is to transfer water from the west side of the Laramie River basin to the east side Cache la Poudre River basin. The tunnel stretches approximately 12,000 feet (3,600 m), and has an average diameter of 5.3 feet (1.6 m). Using existing data collected using a Leica Pegasus Backpack, Tukuh Technologies, a Kansas City based company, embarked on a project to provide a virtual model of the tunnel to their client. With nearly 270 GB of data, they needed a solution that could manage the data and allow nontechnical stakeholders to view, measure, and inspect the tunnel from their computers.

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