CHAPTER IV, SECTION 4 There were encompassed in OPERATION CASTLEa wide variety of marine requirements included among which were: (a) Water transportation and cargo. for personnel (b) Locating, improving and marking boat channels. (c) Overhaul of existing and planting of additional mooring buoys. mander Task Group 7.3. The volume of traffic and the general over-all cargo carried was closely watched and regular boat schedules were published so that the maximum use of available operating craft was made. The responsibility for the assignment of craft to meet the varying daily needs was delegated to the Marine Dispatcher. During the operational phase at Bikini Atoll, the scheduling was assumed by a panel consisting of the H&N Assistant Marine Super- intendent and the U.S. Navy Boat Pool Officer. (d) Movement, mooring and positioning of barges fitted as Zero Stations. All operating craft and dispatchers’ offices were equipped with ship to shore radios. This assured (e) Support of Scientific groups in assembly and planting of waterborne Scientific Stations. control of the craft when out of sight of the (f) Assistance to seagoing vessels in berthing. (g) Assistance in installation and the main- tenance of all underwater piping. (h) Deep sea diving. (i) Operation of cable laying boats. WATER TRANSPORTATION. During the construction phase, intra-atoll water transpor- tation requirements were met by the Holmes & Narver boat pool. For the operational phase the marine craft at the Jobsite were augmented by 19 LCMs and 5 LCUs provided by Com- Figure 4-25. Page 4-34 personnel safety and rescue, facilitated the dispatcher, and permitted diversion of craft in the lagoons as the need for this arose. All craft operators were required to report their departure from a site and their estimated time of arrival at their destination with information as to their needs for assistance in loading or unloading their cargos by riggers, heavy equip- ment operators or others. The dispatchers, therefore, could make the necessary arrangements for this assistance in advance and thereby reduce the time that the craft had to remain on the beach or at the dock. DUKWs were widely used in connection with work on reef stations; on sites inaccessible by boats; for many scientific recovery jobs as they are somewhat self-decontaminating; and DUKW on Site Bravo. Sites Alfa and Bravo were Restricted to DUKW’s Only