Couldn't tell this driving around Loudoun County, VA where I live. Multiple large scale data center developments on going and it seems a new one gets kicked off every couple of weeks. A new 750,000 sq ft data center complex was just approved at the end of January and initial delivery is expected this fall. Such a quick delivery seems to indicate there is plenty of construction resources available.
Based on reports from people I know: Apple already has a great deal of stuff in the NoVA datacenter cluster near Dulles and will most likely not spend any money to put more there. They need to be geographically distributed for latency and reliability reasons.
