Loring Air Force Base
In 1951, the Department of Defense (DOD) allocated funds for the construction of an ordnance storage site at Loring AFB. The designs called for a self-sufficient "maximum security storage area for the most advanced weapons of mankind". The mission of the facility would be the protection and maintenance of the weapons used by SAC. The facility was in the northeast corner of the base, and construction began on 4 August 1951. In addition to 28 storage igloos and other weapons storage structures, the facility included weapons maintenance buildings, barracks, recreational facilities, a warehouse, and offices.
Zaragoza Airport
The construction work on Zaragoza Airport began in September 1954 with the enlargement and improvement of the existing Spanish Air Force Base located there. United States Navy engineers upgraded the facility for temporary or intermediate use as a war standby base. The first U.S. construction project included strengthening the existing runway and adding overruns at each end. Work on a new concrete runway, , with overruns at each end, began in 1956 and was completed in 1958.