The Ryugyong's planned 3,000 rooms and seven revolving restaurants were scheduled to open in June 1989 for the World Festival of Youth and Students, but problems with building methods and materials delayed completion. Work ceased in 1992 due to electricity shortages, funding problems, the famine of 1990 and mainly because of the elevator engineering that had failed to provide service to the top floors. Japanese newspapers estimated the cost of construction was US$750 million[6]—equivalent to 2% of North Korea’s GDP. Official pictures of Pyongyang often show the building illuminated at night, but this is due to photo manipulation.[7]
There had been some question about whether North Korea had the raw materials or energy for such a massive project.[2] A government official said in 2008 that construction had previously been halted when funds ran out. [8]
[edit] Structural defects
Though the basic structure was complete when construction came to a halt in 1992, the building shell has sat vacant and without windows, fixtures, or fittings for 16 years. To date, the hotel has not yet been certified safe for occupancy, and it is widely believed to suffer from major structural defects that render it unlikely to ever be so.[2][9]
The original building plans called for a structural steel internal frame, a standard requirement for any building that large. The government was unwilling or unable to supply enough steel, and instead insisted the structure be constructed entirely from reinforced concrete in order to save money.[10] The concrete used was also a poor-quality domestic variety, mixed with cheap ingredients in order to meet the cost requirements. The combination resulted in a structure which proved itself to be defective before it was even fully erected. The sagging of the interior concrete structure is reportedly so severe that most of the building's vaunted elevators are permanently inoperable due to warping of the shafts.[9] The exterior concrete support structures can also be seen to be badly spalling, exposing large sections of rebar to corrosion from the elements.