Asked by AL 92

If the Twin Towers were still standing today, how long would they stand for in this century?
Answered by Ms. Sue
I don't understand what you're asking. Please clarify.

Answered by AL 92
I'm sorry, Ms. Sue. I'll say it clearly.

When the two World Trade Center buildings were fully completed in the 1970's, how long would it last for?
Answered by Ms. Sue
http://www.google.com/search?source=ig&hl=en&rlz=1G1GGLQ_ENUS374&q=lifespan+sky+scraper&aq=f&aqi=&aql=&oq=&gs_rfai=CyVNxIjBcTN_bNouEhQSl6PCFBgAAAKoEBU_QB5oO

Answered by bobpursley
These types of building are designed for greater than 100 years. The inner structure is examined and maintained, the outer can be repaired/replaced. Only the foundation (bedrock) is not repairable, so the building depends on that, and it is the unknown variable.
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