I 40 West, I 85 South, I 77 South, US 1 South, I 20 West to Augusta
GA 338, GA 232, I 520, GA 4, Local Roads
I 20 East, SC 277 North, I 77 North, I 85 North, US 29 North (Kannapolis), I 85 North, I 40 West to Chapel Hill
US 521 is still indicated on a BGS over I 77 at Billy Graham Parkway in south Charlotte NC.
After stopping for lunch on US 29 in Kannapolis, stayed on US 29 North to Spencer to avoid the the construction on I 85 in Salisbury.
Filled in some mileage on US 29. US 29 is now clinched from Concord NC to US 33 in VA.