Construction of the transmission line consists broadly of the following steps:
- Surveying and marking the right-of-way and access roads;
- Constructing access roads: Access road must have the width and strength necessary to support frequent use by heavy earth-moving equipment and transportation vehicles carrying heavy loads. The total area to be clear-cut, bulldozed and adequately leveled for access roads has not been estimated. However, like the right-of-way, access roads will be constructed in karst terrain, some portion of which is covered by pristine or near-pristine forest.
- Preparing the right-of-way: All forest growth will be cleared from a strip of land that is 50 to 60 miles long and 150 feet wide – an area equivalent to 730 to 880 full-size football fields laid end-to-end. The clear-cut right-of-way, which will encompass a total of 900-1,000 acres, will go across old mountains and hollers that are now covered predominantly by near-pristine forest.
- Installing the transmission line towers: About 300 towers – 20-ton steel monopoles that are 130 to 160 feet tall — will be erected along the right-of-way at intervals of about 800 feet. At the site for each tower, more than ¼ acre of land will be bulldozed and leveled, and a borehole will be drilled and/or blasted into the karst terrain to a depth of 30 to 40 feet and a width of 6 to 10 feet. Every borehole will be filled with more than 200 tons of concrete that will serve as a foundation for a tower.
- Once bolted to or embedded in the foundations, the towers will stand above the Ozark forest at heights twice that of the tallest trees.
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