sentences:  In July, NCSHC finalized a plan for I-40's routing east of Durham to Smithfield, with an estimated cost of $75 million.In December, new freeway opened between Davis Drive (SR 1999), in the RTP, to US 1/US 64 (Raleigh Beltline), in Raleigh; I-40 was added along between Davis Drive and Harrison Avenue (SR 1654), while east of Harrison Avenue (future Wade Avenue) was signed "To I-40.