Before this project began, the Knoxville Utilities Board (KUB) was experiencing tremendous growth toward the southern part of their system in Blount and Sevier Counties. To help relieve the increased load, KUB embarked on two projects.
The first project involved upgrading of a transmission line with the replacement of 10.7 miles of existing 397 AAC on wood poles with bundled 795 on concrete/steel poles. On this phase of the project, Cannon & Cannon acted as a key part of the contract administration team.
This project started with an aerial survey supplemented by Cannon & Cannon’s traditional and GPS survey crews. The entire length of the project was inventoried on a pole-by-pole basis. A PLS-CADD model was then created for proper selection of pole classes, anchoring, and wire tensions, and to meet all NESC clearance requirements. All pertinent permits were obtained, including an aerial crossing of the TVA controlled French Broad River, and the project was staked in the field.
The second project involved new distribution circuits out of Shook’s Gap Substation. Three new distribution circuits were added to the existing four. In all, approximately 3 miles of 13kV, 795AAC circuits were added as double or triple circuits along the existing routes, which were rebuilt to accommodate the additional feeders. Coordination was required with third parties who have facilities on existing KUB structures. A survey was conducted along each pole route to locate all existing topographic features. Plan views and sagging charts were provided.