CHAPTER I!, SECTION 3 cubic yards of lean concrete was poured to replace unsuitable foundation material. The general plan of Station 1312 provided a 81x62x 16144-foot-high concrete superstructure over a 93x74x6-foot-thick foundation slab with a 44x7 x6-foot-thick slab projection along one end to existing sleeves and connections made to terminal cabinets. A User-furnished coaxial cable was brought into Room 1 and connections made by STATION: 1315 indestructible approach apron at the entrance encase a fuel storage tank and to provide an the User. SITE: Yvonne to the station. The roof slab was 6 feet thick, except for an 8-foot slab over the Instrument Room. Ceiling heights were 10% feet through- USER: LASL/EG&G PURPOSE: Instrument Room. Exterior walls were 6 feet thick, and the interior room division walls were 4, 5, and 6 feet thick. Coaxial Cable Junction Pit PARTICIPATION: 20 out, except for an 814-foot ceiling height in the The floor plan of this station provided five utility room spaces, long connecting passages, and an escape hatch compartment to the out- side and through the roof. A Mechanical Equipment Room, 37x18 feet, contained the station power control panel, two 100-kw diesel generators, two salt water wells and pumps, an 840-gallon fresh water storage tank, dehumidification units, ductwork, air exhaust fans, lavatory and water closet, and pneumatically operated exhaust-air blast doors. The Bogue and Battery Room, 17x18 feet, contained a User-furnished Bogue unit, a battery unit, space heater, dehumidification unit, and a lead brick-filled steel baffle at the room entrance. The Detector Room, 50x8 feet, contained a space heater and dehu- midification unit, four collimator slide assemblies, blast doors over collimator holes, a lead entrance door to the room, and electrical outlets. A Dark Room, 7x8 feet, contained a stainless steel sink and drain top. STATION: 1314 SITE: Irene USER: LASL/EG&G PURPOSE: Recording Instrument Rooms PARTICIPATION: 21 DESIGN PSI: 70 psi DESIGN PSI: 36 psi CONSTRUCTION: 2-7-58/4-20-58 This station was provided by rehabilitating existing REDWING Station 1314. STATIONS: 1316.01 and 1316.02 SITE: Yvonne USER: LASL PURPOSE: Alpha Detector Station PARTICIPATION: 20 DESIGN PSI: 110 psi CONSTRUCTION: 2-17-58/4-20-58 Station 1316.01 was provided by rehabilitating and modifying existing REDWING Sta- tion 1311.04. This station was a concrete struct- ure, earth barricaded, and it contained a telephone, signal cabinet, disconnect switches, convenience outlet, and conduits through the station walls. A new entrance tunnel of wood frame construction was built for access through the barricade fill to the entrance crawl hole door. Coaxial cable supports were provided between this station and Station 20 using 4x4 wood posts with a 2x6 crossarm spaced at 10-foot intervals for five %-inch copper coaxial cables. This cable run was paralleled on both sides by a barbed wire fence. Station 1316.02 was provided by rehabilitating REDWINGStation 1311.03. CONSTRUCTION: 3-5-58/4-17-58 STATIONS: 1317.01 - .02 Station 1314 was located in Rooms 1 and 3 of existing REDWING Station 1611. The work involved was electrical reconstruction. Utility power was supplied to the station from SITE: Yvonne USER: LASL PURPOSE: Reinforced Concrete Baffle generators located outside and near the structure. Experimental power was provided by a User-furnished Bogue unit located in Room 3. The Bogue unit required utility and battery power. The experimental power was distributed to Stations 1311 and 1525 power boxes and to a trailer receptacle in Room 1. Terminal cabinets for a trigger system were installed in Room 1. Signal cables were brought in through Page 102 PARTICIPATION: 20 DESIGN PSI: 50 psi CONSTRUCTION: 4-4-58/4-21-58 Station 1317.01 was a 17-foot-long rein- forced concrete wall, 18 inches thick and 1644 feet high on a foundation slab 6 feet wide ana

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