sentences:  In 1984, I-40 was extended in Raleigh from Wade Avenue (exit 289), along the Tom Bradshaw Freeway, to the Cliff Benson Beltline (exit 301).Also same year, AASHTO approved of designation of I-40 between Wallace and Wilmington, currently under construction at the time.By 1985, construction began on a project, connecting the Durham Freeway, in the RTP, with I-85, west of Hillsborough, at an estimated cost of $103 million.