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Thread: Flooding Manholes

  1. #1

    Join Date
    Dec 2014
    Posts
    10

    Flooding Manholes

    I'm not sure if anyone else has had similar problems?

    Currently my understanding is that lost manholes simply act as a weir at ground level to 'lose' the flood water. Stored does as it implies and stores the flood water.

    I have a situation where there was an observed flood event where a number of manholes popped and flooding occurred. But the manhole covers required x amount of head prior to flooding. Anyone had a get around for situations like this? Only thing I can think of is to set the manhole to lost and artificially raise the ground level?

  2. #2
    Senior Member
    Join Date
    Feb 2013
    Posts
    125
    If the water is lost from the system and you have a good idea of the head required, that's a simple solution. Alternatively, you could set a head-discharge relationship for a Gully2D node if that's appropriate.

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