Doesn't appear to be an 'arch' in this picture.
“to put a bomb or missile precisely on the upstream side of a dam.”
Isn’t the upstream side the stronger side? It’s basically an arch laying on its side and upstream is above the arch, which is designed to withstand all the pressure. Probably better to hit the downstream side that isn’t designed to resist pressure at all, eh?
Doesn't appear to be an 'arch' in this picture.
Well don’t forget it was made with Chinese steel it could just use a bit of help and it will fail
Actually, the water side is like a ship, an explosive
is tamped by the water and all the force or more of it
is directed into the structure.
See British Bouncing Bomb.