From Nc 147 Merge On To Durham Fwy. Take Exit 7A For Us 15 N/Us 501 N Towards 1-85 N. Use The Right Lane Foe Us 70 Bus/Hillsborough Rd Ramp. Use The Left Two Lanes & Turn Left Onto Us 70 Bus W/ Hillsborough Rd. Turn Left Onto Sparger Rd. Turn Right Onto Stafford Drive. Destination Will Be On The Left.