Cell Towers fall all the time...From fatigue or fire.
http://cms.firehouse.com/web/online/News/Oswego--New-York-Cellular-Tower-Crushes-Chiefs-Vehicle/46$21901
http://www.wusa9.com/news/columnist/blogs/2009/01/must-see-video-cell-phone-tower-burns.html
Where are the standards?
Doesn't the TIA-222-G standard have any design guildlines for failure? Such as a fall zone? Does it not have any details on how the pole should connect to the base plate that can be used as guild? or specifically how the pole should be desinged to fall that you can use?