The decision to create the “Over-the-horizon radar station” (Duga-1) (near the Chernobyl) was made under government orders dated January 18, 1972 and April 14, 1975.
By 1976, the main radar site Chernobyl-2 was built. The general designer of the radar station in Chernobyl-2 was the Research Institute for long-distance radio communication (NIIDAR). Chief Designer and inspiration of the ideas for Duga-1 was Franz Kuzminsky.
After the Chernobyl accident in 1986, the radar was removed from alert status, and equipment was disabled. Military and civilians were evacuated from the zone of radioactive contamination. When the USSR and the military leadership had understood the extent of environmental disaster, it was decided (in 1987) to export the valuable equipment and systems to the city of Komsomolsk.
So, the unique facility providing a space shield over the Soviet state ceased operation, and the city and urban infrastructure has been neglected and abandoned.