• captainlezbian@lemmy.world
    link
    fedilink
    arrow-up
    4
    ·
    10 months ago

    I’m an engineer (not civil though), and yeah it’s the same principle as any other arch. If you look at the block cuts in order for any one to go down it has to push another away from the middle, but at the end of the chain of that it hits the wall.