North Carolina's Outer Banks has been without electricity for days – and that could last for weeks, according to estimates of how long it will take to repair transmission lines that were inadvertently severed by a bridge construction crew.PCL Construction, which is building a new span to replace the old Bonner Bridge across the Oregon Inlet, has acknowledged that early Thursday its workers drove a steel casing through a major underground transmission cable belonging to the Cape Hatteras Electric Cooperative. The accident has left thousands of residents without power and forced vacationers to depart.North Carolina Gov. Roy Cooper said "a lot of money" was being lost due to the outages that come at the peak of tourist season when people come from all over the country to relax on the region's sandy beaches."You've got waiters and waitresses who are losing tip money. You've got restaurants who aren't selling meals. You've got hotel owners who aren't selling rooms. You've got boat captains who don't have charters," Cooper said."I do know we're talking hundreds of millions of dollars for our tourism on these islands every year," the governor said at a news conference on Monday. "And so it is critically important that we get the power back on, to make sure these tourists and visitors can get back on the island as quickly as possible."Jason deBruyn, a reporter for member station WUNC, spoke with All Things Considered, describing the beaches as a ghost town following a mandatory evacuation that has removed 50,000 visitors from the island. Normally, he says there would be "cars backed up for miles, blanket to blanket on the beach. ... people everywhere" at this time of year.On Monday, The News & Observer reported that a lawsuit had been filed against PCL Construction on behalf of the affected individuals and businesses.The construction firm originally said its crew had accidentally cut a single transmission line, but the utility said later that a test of its underground cables showed a total of three had been severed and that it could take up to two weeks to repair the damage or string new overhead lines.The News & Observer writes: