Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8 Page 9 Page 10 Page 11 Page 12UP IN THE AIR WITH ABSOLUTE CERTAINTY As you travel around the country, you frequently encounter soaring high-voltage towers. These structures are visible and integral parts to the backbone of our power grid, energizing millions of homes, businesses, and critical national infrastructures. The towers and wires that stretch between them must periodically be maintained and receive necessary upgrades. How are these giant structures maintained while stretching more than 100 feet off the ground? Taking it a step further, what happens when the towers span over a major interstate highway? Typically, when installing wire from structure to structure, crews use special rigs to pull it between the towers. When new wire is needed, crews walk or drive high-strength ropes between towers to pull the heavier transmission wire up into place. When ropes can’t be moved along the ground, it often requires help through the utilization of a helicopter. This past August, that is exactly what was needed when a wire upgrade project traversed its way through the Pocono Mountains in Eastern Pennsylvania. T H R E E T W O