North Carolina Contractor Hits Impregnable Rock

摘要

Drilling a five foot deep hole in rock shouldn't be a problem with a pressure digger and a good rock auger. Haynes Electric Utility Corp., one of eight divisions of MB Haynes Corporation is based out of Asheville, North Carolina and holds several maintenance contracts with the North Carolina Department of Transportation (NCDOT). Rock boring for utility pole installation is a common necessity in that part of the country and Haynes has done scores of them. On this project, a flashing signal light needed to be installed on a two lane road near the top of a mountain.