sentences:  In the end, the routing approval to Wilmington came with a caveat to build new freeway in parallel to US 117 instead of a full upgrade of US 421 as several in the region supported.In 1979, I-40 was extended east from Patton Cove Road, in Swannanoa, to US 70, in Ridgecrest.In 1982, I-40 was designated, in concurrency with US 70, along Youngs Ridge, between Ridgecrest and Old Fort; this officially completed the original I-40 routing from Tennessee to Greensboro.