Take Us-70 E, Turn R Onto Ramp I-785/I-840, Take Exit 21 I40 To I -85 N/ Durham/Raleigh, Take The I40 E Ramp To I-85 N Raleigh/Durham, Take Exit 140, Turn R Onto University Drive, Turn R On Bonnar Brg Pkwy, At Circle Take 2Nd Exit, Turn R On Campbell Rd.