I-685

N.C. Transportation secretary Joey Hopkins, left, and N.C. Transportation board member Lisa Mathis stand next to a Future I-685 sign during Monday's ceremony in Liberty. (P.J. Ward-Brown / Randolph Record) Upgrading the highway to interstate standards will take years LIBERTY — With an interstate cutting through Randolph County, it’s going to contribute to the area’s growth, Darrell Frye said. Frye, chair of the Randolph County commissioners, was among the state and local leaders gathering Monday to celebrate the designation of U.S. Highway 421 as the future Interstate 685. “I think it’s a recognition of what’s happening here in this part…