Part of the newly reopened portion of the Blue Ridge Parkway. (NPS / FOX Weather)This opens up national park sites, such as the Devil’s Courthouse, along with its popular eponymous trail. More national park trails and sites along the Blue Ridge Parkway will reopen as the NPS continues more rounds of recovery projects to address immense damage along the Parkway from Helene . Road washout from Helene flooding on the Blue Ridge Parkway at milepost 345. (NPS / FOX Weather)The Blue Ridge Parkway is the longest road planned as a single unit in the U.S. , according to the NPS.