Hanna Brings Down Wall

[toucana]

Video circulating on Twitter shows large chunks of Trump's 'Wall' being blown over by hurricane Hanna as it makes landfall in Texas.

https://twitter.com/RexChapman/status/1287494208543166464

Given that Hanna was only classified as a category 1 storm, you can't help wondering whether the contractors did any wind-loading engineering design calculations at all ?