 At the same time, construction of an access road, power lines and the pier began, just below the SM-1 reactor facility.The "Sturgis" arrived at the new Gunston Cove pier on 22 April 1966, having been towed from Mobile, Alabama.The MH-1A reactor first went critical on 24 January 1967 and was formally "accepted" by the Army on 25 July 1967.