The Highlands Army Air Defense Site (HAADS) was the Army Air Defense Command Post (AADCP) of the Cold War for the Nike fire units in the New York Defense Area, replacing the Nike missile "manual operations center" at Fort Wadsworth on Staten Island. The Missile Master Army Installation was built adjacent to Highlands Air Force Station and cost ~$2 million for the new equipment (Martin AN/FSG-1 CCCS and AN/FPS-6 & -90[citation needed] height-finders) and ~$2 million for additional structures such as the nuclear bunker, 4 radar towers, diesel power plant, and cinderblock electrical switch building. Isaac Degeneers Construction Co. was the general contractor for the $1.71M construction (C. W. Regan was the lowest bidder at $1.5M.)[1] The 1957 site plan was for ; construction began July 10, 19