A pillow beam is used as the support beam for the concrete dome which is 161 ft. in diameter.
The outer walls of the of the concrete dome were poured in place 18 in. thick.
The original stairwell of the Atlas silo was kept in place but reqorked with new concrete and an epoxy waterproof floor.
Shotcrete was used to build an artifical rock wall in the Survival Condo.
The Survival Condo includes a shooting range structure covered by all-new steel decking.
The Luxury Survival Condo Is a redundant infrastructure for power, water, air, and food; offers the highest level of protect; and most important, is a shared facility for extended off-grid survival.