The TF Cornerstone project started in 2013 has been bedeviled by underground infrastructure owned by state power authority and Amtrak (crainsnewyork.com)
An internal army investigation leaked late last year also noted that the military, particularly the Engineering Corps, was not prepared to confront Hamas's underground infrastructure during the fighting. (businessinsider.com)
In many cases, the same number of trees can not be replaced as was removed because of underground infrastructure, placement distance from stumps that have been ground below the surface, the size of the parkway and other concerns. (orlandpark.org)