The current picture at Norfolk:
One carrier in overhaul (based on the West Coast)
One in post-overhaul
One in maintenance
One on deployment
One post-deployed
Therefore, at most 4 carriers in the basin at once right now.
The other carriers are based on the West Coast and Japan.
There are quite a few pictures floating around of 4 & 5 carriers at N.O.B. One have them has a carrier in shipyard posture. IOW tents and huts on the FD.