Finland 2 AT&T Bunker / PMJ Interconnect Control Center

USA / Pennsylvania / Red Hill /
 Cold War 1947-1991, bunker, microwave tower / microwave transmission
Hardened routing office on the former AT&T L carrier co-ax telephone east-west network. Built in the early 1960's as a hardened communications system that could survive a nuclear exchange better than microwave relay or wire carrier systems. The bunker could sustain independent operations for two weeks and could survive a 1MT blast to within 5 miles.

www.coldwarcomms.org/l5/finland/finland.html

The bunker was taken out of service in the 1980's with the advent of the newer fibre-optic networks, however in the late 2000's it was sold to the PJM Interconnection for use as a hardened control facility even tho most electric grid security threats are cyber and not physical.
Wikipedia article: http://en.wikipedia.org/wiki/PJM_Interconnection
Nearby cities:
Coordinates:   40°23'34"N   75°26'10"W

Comments

  • Finland 2 was built in the early 70's. Finland main microwave & cxr station was built 66-67 time frame. The microwave & carrier systems were phased out in the early 90's. I worked there 1970 to 1991
This article was last modified 6 years ago