secretsunkept:

sawayaka-akikaze:

pondwitch:

tyloriousrex:

chrissongzzz:

So how do they make that?

This just raises more questions for me 🤦🏾‍♂️

what the FUCK

They have the metal plates on a boat, they lower it down to riverbed, they hammer it in the riverbed, and they build a metal wall by this process, the metal plates have interlocks to lock each other, and they seal it with rubber cement , they make it more stable by putting metal tubes across, and they pump water out, and that’s basically it.

I honestly thought they just used a giant robot machine to drop the beams in place. I didn’t know people had to actually do this mess still