Area 51 between Area 51 and Lockheed's Burbank, California offices. To preserve secrecy, personnel flew to Nevada on Monday mornings and returned to California on Friday evenings. Project OXCART established in August 1959 for "antiradar studies, aerodynamic structural tests, and engineering designs [and] all later work on the" Lockheed A-12 included testing at Groom Lake, which before improvements for OXCART had inadequate facilities: buildings for only 150 people, a asphalt runway, and limited fuel, hangar, and shop space. Selected for its seclusion and climate, Groom Lake had received a new official name "Area 51" when A-12 test facility construction began in September
Arizona State Route 51 occupancy vehicle lane in each direction and on ramps to Loop 101 eastbound. Work was completed in the summer of 2008. In March 2016, a new interchange from the road's existing terminus at Loop 101 to an intersection with Black Mountain Boulevard opened. Arizona State Route 51 Arizona State Route 51 (SR 51), also known as the Piestewa Freeway, is a numbered state highway in Phoenix, Arizona. It connects Interstate 10 just outside Downtown Phoenix with Loop 101 on the north side of Phoenix, making it one of the area's major freeways. It is a largely north–south route and is