CHAPTER II, SECTION 3 heads contained watertight doors. On the deck concrete footing which was provided with lift- welded to provide support for a User-furnished rack to be placed on top at each location. location of the station. The reef Stations 50.14 and .15 each consisted of a 12-inch bearing pile 21 feet long and driven 6 feet into the reef. The lower portion of the pile flanges was reinforced with 1-inch cover plates for added strength. two 4x14-foot steel plates, 5¢-inch-thick, were Power was supplied from two 30-kw engine generators operating individually but with an automatic transfer switch. In addition to cab lighting and power receptacles, outside flood- lights were provided and the compartments below ing eyes for future removal and subsequent re- deck were lighted. STATION: 70 Two Jobsite-fabricated periscopes, which allowed inspection of the barge bottom from the deck, were movable, buoyant, and adjustable for vision in all directions. Underwater lights were on the lower end of the periscopes. A SITE: Nan USER: EG&G PURPOSE: Timing Station 12x16x12-foot-high canvas and pipe frame sun shelter was provided adjacent to and aft of the PARTICIPATION: All cab. DESIGN PSI: The station was moored with two-part anchorage. Two lines from the bow were bridled CONSTRUCTION: 3-6-58/4-19-58 to a common line, and a single line from the stern was tied to anchored buoys. Bikini Event 42 Events and 0.5 psi The structure which contained Station 70, stored at the EPG. as well as Stations 1031, 3241.01, and 7410, was an existing 44x72-foot reinforced concrete structure used during previous Operations as a timing station. Station 70 occupied Rooms 1 and 2 of the existing building. New construction consisted of closing the open stud wall of Room STATIONS: 50.01 through .15 the room and new wall in Room 2 which closed off the refrigerated storage area of Room 3. In SITE: Sta. 50.01 through .06, Fox; The requirement for these facilities was cancelled after construction was completed. The stations are now preserved with cocooning and 1 and providing acoustical tile to the ceiling of Sta. Janet; 50.07 through .10, Sta. 50.11, Irene; addition, the existing coping trays in the two rooms were made continuous to allow cable runs from Room 1 to Room 2. A new 52-pair ter- Sta. 50.12 and .13, Kate; minal cabinet and signal runs were installed in Room 1. USER: SIO/H&N A new refrigerated storage area was constructed in Room 3. Two new insulated walls PURPOSE: Wave Gages and Sta. 50.14 and .15, Trene — Janet Reef were added, one adjacent to Station 1031 (Room PARTICIPATION: Sta.- 50.01 through .06, Event 8; Sta. 50.07 through .10 and Sta. 50.12 through 50.13, Events 2, 10, 16, 25, 27, 28, 30, 37; Sta. 50.11, Events 2, 10, 16, 25, 27; Sta. 50.14, Event 28; and Sta. 50.15, Events 28, 30 and 37 DESIGN PSI: Sta. 50.01 through .03, 300 psi; Sta. 50.04 through .06, 130 psi; and Sta. through .15, 80 psi 50.07 CONSTRUCTION: 3-25-58/8-2-58 Each of the Ground Stations 50.01 through .13 consisted of a pair of 8-inch pipes 6-foothigh, spaced from 7 to 26 inches and welded together for rigidity by meansof steel side plates. The pipes were embedded in a 4x8x3-foot-deep Page 76 15) and oneadjacent to Room 2. The remaining two walls, ceiling, and floor were insulated, and the room was air-conditioned and dehumidified to maintain a refrigerated condition. STATION: 71 SITE: Elmer USER: EG&G PURPOSE: Timing Station PARTICIPATION: All Events, Except 1 and DESIGN PSI: None CONSTRUCTION: 2-5-58/7-10-58 The station consisted of a 24x37-foot PI&S aluminum building which was constructed of material from existing Buildings 229 and 311. Cable trenches, 1-foot-wide and 6-inches-deep,

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