Researchers find ‘significant rates’ of sinking ground in Houston suburbs
Houston is an experiment in what you get when you YOLO building regulations.  One should expect them to re-learn all of the lessons of the past that caused those regulations to be written.  It's basically a case study in technical debt from an urban planning angle.  The lack of regulation made it cheap to build and allowed the city to rapidly expand, but also allowed it to sprawl almost beyond reason and caused it to become the poster child for poor city planning and a costly reminder of how hard it is to go back and try to fix problems after the fact.