3 ms·

This should have been done 20 years ago.

• toomuchtodo 3y ago
  Second best time is today.
• oyashirochama 3y ago
  At the cost of hundreds of billions and disruption of nearly every road in the USA, yes. Doing it in the more vulnerable areas should be done first and if the lead solder has stabilized, work those areas last. Over a period of 20-30 years is better since that's roughly how long it took to install in the first place. This would lower the price and economic costs too. (this is what they do btw)