BERKELEY, Calif. — The balcony collapse that killed six college students appears to have been caused by rotted wooden beams, Berkeley’s mayor said Wednesday as the victims’ heartbroken loved ones began arriving in the U.S. from Ireland.
Mayor Tom Bates said investigators believe the wood was not caulked and sealed properly at the time of construction and was damaged by moisture as a result.
The crowded fifth-floor balcony broke off an apartment building during a 21st-birthday party held by visiting Irish college students Tuesday, dumping 13 people 50 feet onto the pavement.
In addition to the six killed, seven were hurt seriously.
“More than likely, it was caused by rain and caused by water damage that was done to the support beams,” Bates said. He said it was “obviously a bad idea” for 13 people to crowd onto such a small balcony but added that he is not blaming the victims.
Later in the day, however, the mayor said that the water-damage theory was speculation on his part and not an official conclusion and that the investigation is still underway. Building inspectors also determined another balcony at the Library Gardens apartment complex was “structurally unsafe and presented a collapse hazard.” They ordered it demolished.



