O2 angles of 120 degrees. The front and wing walls were designed for pressures of previous events. Within the building was a 5-ton bridge crane, with a 20-foot span and a clear hook height of 25 feet. Two equipment foundations, each 6 feet square and capable of supporting a 20-ton distributed load, were required in the reinforced concrete floor. The steel columns of the building were suported on spread footings 4 feet below grade. However, at each of the two proposed equipment locations, the settlement limitation was 1/4 inch. Subsequentto a soil investigation, it was decided to isolate the two equipment foundations by means of a premolded jointfiller, and to support them by means of a 3-foot thick pile cap and four 12” bearing piles with a 30 foot penetration. The anticipated maximum settlement was then 0.2 inch. Anchor bolts were embedded in the equipment foundations and various locations in the floor. The floor also contained two trenches 8” wide, 8” deep, 28’ and 23’-4” long, respectively. Five 4-inch diameter conduits were placed, starting at the floor of the east end wall and terminating beyond a concrete collimating wall, Station 2250. A 3’ x 7’ door was provided in the south wall. Ventilation of the building was accomp- CHAPTER Ii, SECTION 3 lished with three 24” roof vents of the gravity ‘ype and a framed opening in which six 20’’x20” air filters were installed. Power was suplied to this station by one 25KW and one 50KW diesel engine generator at 120/208 volt, 3-phase, 60-cycle. The 25 KW machine carried the utility load and the 50 KW machine the scientific load. Separate machines were used to obtain good voltage regulation for the scientific load. However, provision was made for parallel operation when the station was abandoned, at which time there would be no utility load. Signal-controlled outside security lighting was installed around the perimeter of the station. Outside flood lighting was placed at the generator pad. One 16-pair submarine cable terminating in a 16-pair timing terminal cabinet provided for timing signals; a special 16-pair terminal cabinet was also con- nected by a 6-pair cable to Station 2200; and a 16-pair direct burial telephone cable terminating in a 16-pair telephone cabinet serviced the telephonelines to the station. The corrugated aluminum siding was removed from this station for the Cherokee event and replaced immediately thereafter. Page 2-53