A friend of mine recently purchased a large property out by Pittsburgh International Airport and had this building on it Very similar to the building in picture below located in a farmers field in Washington County Pa.
At first we thought it had something to do with the Airport ,but after exhaustive research we could find nothing . No utility said it was theirs either but what could it be. The family members knew nothing about it and the ancestor who owned the property had long ago passed .
Well after belonging to a FB Group about AT&T Long lines Service which I was part of in alarm industry back in the McCullough Loop days I finally figured it out after seeing similar pictures posted in that group . Unofficially these buildings are known as K-Carrier Huts or simply K- Huts and they where part of the Cold War Era AT&T Long lines communications system which consisted of Hardened Microwave Tower Sites which served as back up to a multi pair Buried Coaxial Cable which ran all across the country to provide critical phone and video communication and path for certain government Data.
While most of the AT&T Long lines History is available on line including You Tube not much can be found on these huts as some of Landlines is still classified .
Thou most of the landlines system was decommissioned in late 90s early 2000s and replaced with fiber-optics and Satellites some of it in more rural areas is still in use.
What is available to the public is that these K huts as they where known served as Amplification boosters to the Coaxial system .
When the buildings where decommissioned and sensitive equipment removed they where given to the farmers to use. Most now have started to deteriorate and nothing to see inside.
That is pretty interesting. I had never heard of the long line service.
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