"America" has more than 50 other things to fix before these ever will.
Kinda strange,,, to an outsider, the "dam belt" of MO, KS, OK, TX. Makes me wonder about federal money, timing, etc.. It's possible (likely?) that many of them were constructed to satisfy a spec to acquire "dam" status and government assistance, since the natural elevation changes and terrain may have made that easy in that area. I'll guarantee that not one 24' dam has been constructed since that 25' definition came into place, unless NOT being a "dam" made money for a developer or other politically connected individual.
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(Me,,,wrong? ...aw, just fine-tuning my sarcasm!)