CHAPTER VI, SECTION 4 During the roll-up of Bikini Atoll, equipment was returned to Site Elmer as requirements permitted, leaving only essential equipment at the site to accomplish maintenance missions during the interim period. The entire program was accomplished according to detailed instructions issued in the form of Work Orders; these listed the desired status of all Scientific Stations, and the work necessary to bring them to that condition, and directed the buttoning up of other facilities. Buildings at Nan and Oboe had been given a coat of aluminum paint earlier in the program. The main camp at Sit Nan was closed, and Bikini was completely evacuated on 19 August 1958. Upon receipt of information that the weath- er and rad-safety facilities were no longer required, a schedule was established for the roll-up of these facilities. Because of the difficulties encountered in transportation occasioned by wide- spread locations, careful coordination was necessary to accomplish this program with a minimum of time and expense. Where it was possible to do so, two or more sites were scheduled for rollup by using the same crews and transportation. Tarawa, Kusaie, Rongelap, and Wotho were combined in this manner. All other stations were scheduled as separate operations. All Weather and Rad-safety Stations, except Utirik, were completely rolled up on schedule; a crane break- down at Utirik made it necessary to return to that site to remove equipment which could not be loaded on thefirst trip. Prior to the ORANGEevent, various meet- ings weree held between J-4, JTF-7, J-4, TG 7.1, and the H&Nstaff to establish a roll-up schedule (Neg. No. W-V-433-12) Figure No. 6-4. Mothballed Electrical Equipment, Station 1520 —- Yvonne. for Johnston Island. The schedule included obtaining the weight and cube measurements of all equipment of the Task Groups and JTF-7 head- quarters. This information was used as a basis for scheduling LST- and LSD-type ships at Johnston Island. Discussions were held with the Air Force Base Command and JTF-7 headquarters relative to the return of the base services operated by H&N andthepossibility of the Air Force procuring camp store, liquor, and subsistence items on inventory at the time these services were returned. As a result of these discussions, dates were established for joint inventory activities and the re-assumption of operational control by the Air Force. Although a two and one-half day “hold” was placed on the full-scale roll-up operation pending a decision as to whether or not another test event was to be held at this site, the over- all roll-up schedule was not affected to any significant extent. Due to the fact that Sandia Corporation participation in the third event at Johnston Island would have been of relatively negligible significance, it was possible to start dismantling rocket launchers and loading certain (Neg. No. W-V-385-8) Figure No. 6-3. Rolling Up Water Tower and Distillation Plant — Ujelang. trailers on the day following the ORANGE event. Upon receipt of information that ORANGE was the last test event to be held at Johnston Island, roll-up activities were accelerated and it was possible to sail the first LSD loaded with User equipment and materials to Pearl Harbor on 19 August 1958. By 1 September operational control of all functions had been returned to the Air Force, and the roll-up was complete with the exception of final ship loadings. On 19 September the final LST sailed from Johnston Island to Eniwetok. Page 453