GONFIDENTIA. PART (tf, CHAPTERS 3 and 4 struction of a poured concrete IBM building with suspended acoustical ceiling, removable floor panels supported on stringers, and a major utilities plant to provide air conditioning both overhead and underthe floor. Two guest houses were erected on Site Elmer to accommodate Visiting dignitaries. The hase facility construc- tion program also included a Butler-type administration building to house the Contractor's of- fices, concrete and prefabricated aluminum harracks, warehouses, community. service buildings, and several laboratory buildings. The Administration Compound was enlarged and AEC-owne 1 equipment. Although somewhat cur- tailed by the construction effort, the maintenance program was continuous throughout Operation HARDTACK, Phase I, and was predicated on preventive maintenance, normal wear and tear, and non-scheduled repairs. Due to the critical requiremert for continuous operation, reefers, generators, and pumps were checked daily, and any break lowns were cause for immediate re- pair, day or night. All construction equipment provided with aluminum chain link fencing. A was rigidly scheduled for lubrication and inspection, and breakdowns were often forestalled by timely replacement or overhaul of parts. Preventive maintenance with respect to buildings and structures included securing all doors and Task Force personnel. For example, eight barracks were modified to provide day rooms, and wave damage during test events. large volume of modifications to existing structures and additional construction was accomvlished to provide some measure of comfort to newly constructed barracks included day rooms. Building construction on Site Fred was predominantly Pasco-type structures for warehousing. Ten major concrete projects on Site Fred included the airfield extension, a 200,000gallon water storage r-servoir, an explosive storage building. two r:mphouses, three concrete ramps, a double :=nnis court, and a de- contamination storage building. shutters ir. an open position to prevent shock- Du:ing the operational phase, H&N was also responsible for the preventive maintenance and minor repair of all Military-owned vehicles, except those located at Site Fred. The maintenance and repairs to marine craft was confined to engines, bottom and hull* plating, replacement of stringers and stiffeners,and the replacement and repairs of propellers and shafts. Tnrese repairs were accomplished by Additional recreational facilities, such as volleyball and basketball courts. were constructed on Sites Fred, Elmer, and Nan. either beaching the craft by use of a “Gilhoist” or placing the craft in a floating dry dock. MAINTENANCE The maintenance of utilities increased proportior.ally with the increase in population 3.4 HEN was responsible for the maintenance of all buildings. grounds, utilities, and all during the build-up period, when additional faci- lities were put into use. CHAPTER 4 ENGINEERING, CONSTRUCTION, AND MAINTENANCE OF TEST FACILITIES GENERAL 4.2 4.1 The increased scorp= of Operation HARDTACK, Phase I, nearly twice the magnitude of Operation REDWING, required a heavy expendable test construction program fer both Bikini and Eniwetok Atous. Criteria for scientific structures were not completely released by the Laboratories until th> middle of January, 1958. The procurement of men and materials and To maintain a dual-shot capahility, UCRL test facilities were constructed at Bikini Atoll and LASLtest facilitics at Eniwetok Atoll. However, adverse weather conditions in the Bikini Atoll area resulted in the transfer of five shots to Eniwetok Atoll. Twenty-four barge zero stations and five LCU hull zero stations were fabricated for Operation HARDTACK, Phase I, using cargo-type barges and obsolete LCU hulls procured from Navy and Army the task of transporting them to the EPG created multitudinous problems for the AEC sources. Subsequent to construction completion, one of the barge zero stations was damaged beyond repair while in tow from Eniwetok to Bikini Atoll, and two were cancelled as a result a few of the manvefforts that result in a com- required the addition of a second floating dry dock (AFDL) at Eniwetok Atoll and the construction of a three-fingered barge slip at Site Contractor. Material storage, fabrication, construction, and inspection. as well as the housing and feeding of construction personnel, are but pleted structure. Despite the manyobstacles and the rigid construction schedules, the job was effectively accomplished bx Ha&N. of a program change. Barge station construction Nan. Of the shots scheduled for Operation Page 44 EONFIDENTIAL re