• 9point6@lemmy.world
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    29 days ago

    Technically it’s the manhole covers that need to support the weight.

    Manholes themselves are expected to do the opposite of holding weight

    • grue@lemmy.world
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      29 days ago

      Technically, the walls of the manholes, in turn, support the weight of the cover and whatever load is on top of it. The entire manhole is a weight-bearing structure.