Dominion Energy-Salt Lake City & Park City, Utah divisions have selected Prospan shoring to protect their workers from the hazards of trench wall cave-in.  Both the PRO-Lite trench shields and the Prospan Air Shoring have been selected to perform this task.  Headquartered in Richmond, Virginia, Dominion supplies electricity to parts of Virginia, North Carolina, and South Carolina and supplies natural gas to parts of Utah, West Virginia, Ohio, Pennsylvania, North Carolina, South Carolina, and Georgia.