This video is interesting. In Warrenton, Virginia, a road was destroyed on purpose by a wave of controlled blasting. The Virginia Department of Transportation shared video on July 16th of blasting along Route 29 in Fauquier County.
I guess there’s no concern about a malfunction leaving an unexploded explosive in the ground? They probably excavate all of the rubble to be sure.
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TrueStrange.com
Xeno’s Blog 
Very interesting post!