Gener JOHNSTON ATOLL SCIENTIFIC F &S NO. TITLE 01014 Nike-Herc Control Bunker and Converter Shelter - Subtasks A941, and A942 USER TC STRUCTURE FACILITY NO. 276 and 737 FUNDING AGENCY ($000) JTF-8 PRE-GO MILCON CRO 7-64 Prior Cost ENGR SCIENTIFIC STATION NO. 91-3-139 and 91-3-140 PROC CONST 18.2 TOTAL BoP FOD GO+60 FURN 18.2% POST-GO Est. 9/67 TOTAL 18.2 16.6 16.6 6.0 16.6 34.8 6.0 PRIOR YEARS ENGINEERING Completed. Drawings: 91-276-Cl 91-276-Al 91-276-S1 thru S4 91-276-M1 and M2 PROCUREMENT 91-276-El thru E7 91-737-Cl 91-737-El thru E7 JS 91-276-C100 JS 91-276-E100 JS 91-737-E100 Completed. CONSTRUCTION A combined control bunker and converter shelter (completed in 1965) is located on each of the two southern peninsulas and in line with the Nike- Herc launch pads (F&S No. 01004). Each building is a 20x 72 x 8-ft. 4-in. high reinforced concrete structure covered with a minimum of 3-ft. of compacted coral, and separated into two internal areas by a blast protective concrete wall. The control bunker portion of each building is 20 x 46-ft. long and designed to provide protection trom fall-back missiles of 2,273 pounds at 705-ft./second. This protection is mandatory for insuring continuous power. Access is provided by steel blast doors located at each end of the bunker. One of these doors opens directly into the converter shelter. The control bunker is air conditioned to main tain 70°F (45%). Toilet facilities, fluorescent lighting and telephones are also provided in the bunker. Ventilation and filtration equipment operate on a 24 volt battery power supply in case all other power fails. Both 120/240 and 480 volt, 60 cycle, 3 phase utility power is provided to the bunker. The bunker is also provided with 120/208 volt, 400 cycle, 3 phase power which is supplied by a converter located in the adjacent shelter. The converter shelter portion of each building is 20 x 26-ft. long. One end of the shelters has been left open for ease of access to the converters. Utility power, lighting and distribution panels are provided. VOLI -14