RT&S May 2017

Page 27

NRC large project of the year OPPOSITE PAGE: A test train traversing the Expo 2 alignment. This page: Welding rail in the I-10 box.

light-rail guideway limits. The 3-D modeling was an effective method to prove the relocation concept worked and it allowed our crews to move forward with installation,” said Bifone. The JV also issued iPads to each team leader, at the foreperson level or above, to enhance communication and collaboration. According to Bifone, using the iPads ensured that each team member was operating using the most recent and up-to-date versions of all plans and specifications and facilitated real-time, accurate document control and record keeping, complete with photo and video capabilities. When it came to verifying utilities, the team implemented hydro-vacuum excavation, which utilizes pressured water and a vacuum, to cut a total of 6,300 feet in multiple six-foot deep by nine-

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inch wide trenches. “Without damaging any utilities, we discovered 337 new utilities and revised 50 known utilities from relocations to protect-in-place or no action,”

said Bifone. “To manage this utility work, the team convened all involved parties to verbally agree on solutions addressing scope, deadlines, responsible parties and costs.”

Railway Track & Structures

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