Tucker-based Georgia Transmission has completed a $5.5 million project putting up 6.2 miles of new, updated power lines across North Hall County, including a small part of Lake Lanier. The lines are energized and good to go, as of late June, while crews take care of last-minute details, such as removing old poles, stabilizing areas around the new poles and restoring landscaping that was disturbed during construction, said Craig A. Heighton, public affairs director. The final work is expected to wrap up later this month.