They Built the Wall. Now Some in Texas Fear It May Fall Down. - The New York Times

Now, the three-mile-long barrier is essentially orphaned, functionally useless — because of a federally constructed border barrier a short distance behind it — and, according to an engineering report commissioned by the Justice Department, at risk of falling over in a major flood and floating away. And because of its location and construction along the water's edge, federal officials worry that the fence could end up redirecting the Rio Grande in such a way that the land it sits on would end up as part of Mexico...

https://www.nytimes.com/2023/01/05/us/texas-private-border-wall.html