single location for working on the nuclear devices. It included support and shelter of the assembly teams, machine tool facilities, and highexplosive magazines at hand. ence 5, p. This was completed in March 1954 (Refer- 2-199). The devices were largely assembled in this area and then transported by water to the test location. A ramp was available within the area so that an LST could take devices aboard by truck. The barge-detonated de- vices were assembled in a shelter on the barge, which was (called a cab) moored in a specially constructed slip equipped with a large overhead crane to handle heavy loads (Figure 7). After completion of work, the device barges were towed to their final destinations. The Air Force component of the joint task force, based on Kwajalein in previous operations, was moved to Enewetak for CASTLE. This move required considerable improvement in the airfield that occupied the southern half of Enewetak Island. looking west. B~36s Figure 8 shows the extreme western end of the island The light area near the right wing of one of the parked is a decontamination area that was constructed for CASTLE. In the northeastern are of the islands, a causeway constructed for GREENHOUSE (1951) to link Eleleron, Aomon, Bigire, and Lojwa islands was widened. A major construction camp was built on the Lojwa end of this complex. This required some work that is more properly described in the following subsection (p. 47) on the radiological condition of Enewetak. Generally, the northern and eastern islands involved in the shot or shot-support activities had been graded extensively. Japtan, lying just across the Deep Passage from Parry, still contained a considerable stand of coconut palms, pandanus, scaevola, and other tropical vegetation. In October 1952, H&N, acting as the resident contractor for the AEC, began construction of a camp on Eneman Island on the southern perimeter of Bikini. An airstrip to serve Bikini-Enewetak traffic was also begun on the neighboring islands of Aerokojlol and Aerokoj and on the causeway that was 45 {