Lf CHAPTER II, SECTION 4 SECTION 4 EXPENDABLE CONSTRUCTION NAN CAMP. The Nan camp was activated the first week of June 1957 and served as the base camp for Bikini Atoll. Work was immediately started on rehabilitation and maintenance of buildings and the checking out of all water and sewerlines. By the middle of July, the original population of 148 had doubled, and work was directed to the pre-cutting and prefabricating of buildings for the How and Oboe temporary camps. The aggregate program on Oboe wasalso in progress by that time, with drilling and blasting on a continuous basis to provide a stockpile of required materials. Following the activation of the Nan camp, many material improvements were made, in- cluding additions or modifications to the Infirmary, Building 19; Camp Store, Building 18; Laundry and Distillation Plant, Building 25; and the fuel unloading and servicing facilities. New roads and parking areas were established to serve the new areas. Small boat piers were built near the LST pier and in the Navy Recreation Area. The recreation and swimming areas were improved, and a shark net was installed. Two volleyball, two handball, two tennis, and one basketball court were built for the recreation program; all were equipped with night lighting. Though originally designed to accommodate only 1000 men, the Nan camp had a population of over 1300 during the peak period. The major facilities constructed at this site for Operation HARDTACK were the TG 7.1 Administration Building, the UCRL Assembly Area, Building 204, Communications, and a three-fingered Barge Slip and Assembly Area. The TG 7.1 Administration Building, No. 284, was a U-shaped building, 118x138x8-foot-high. The structure frame consisted of standard 24-foot timber trusses supported on wood stud walls with plywood siding and corrugated alumi- num roofing. The building contained 28 rooms, including a reproduction room, a teletype room, a dehumidified area, and offices. The UCRL Assembly Building, No. 279, was a 48x102-foot metal building and lean-to shelter used for weapons assembly and was designed to withstand the maximum anticipated (Neg. No. W-V-202-11) Figure No. 2-118. TG 7.1 Administrative Compound — Nan. Page 225