Check the Amtrak website for the latest service alerts. All normal Amtrak service in the east will be fully restored as of Sunday, September 4. Well, except for the Vermonter which is likely to remain out of service north of Springfield, MA for some time.
However, for SC, there are the previously planned cancelations for the Palmetto due to CSX track work. Amtrak Service Alert:
"Trains 89 and 90: Tuesday through Thursday Only — September 6 - 8, 2011; Monday through Thursday Only — September 12 - 15*, 2011
On the dates shown above beginning September 6 through September 15, Trains 89 and 90 will be canceled, and alternate transportation will not be provided.
*On September 15, Train 89 will make all scheduled stops from New York to Dillon, but will not operate from Dillon to Savannah."
