Why is the "Bypass Target" field disabled for my catchbasins, even though bypass flows were calculated?

  Applies To 
  Product(s): StormCAD, SewerGEMS, CivilStorm
  Version(s): V8i, CONNECT Edition
  Area:  Modeling
  Original Author: Jesse Dringoli, Bentley Technical Support Group

Problem

Why is the "Bypass Target" field disabled for my catchbasins, even though bypass flows were calculated?

How do you specify the bypass target for an inlet / catchbasin?

Solution

The bypass target is specified by drawing a gutter between the inlet and the next downstream element. For example, look at the "Sample_2" file included in the Samples folder within the installation folder. On the upper right side of the model, notice how there is a gutter link going from catchbasin A02-1 to B02-1. This tells the program where the bypass flow goes. Once you compute the model, the "bypass target" field in the catchbasin properties will update. In the help documentation, this is mentioned under Contents > Creating Models > Elements and Element Attributes > Link Elements.

If the gutter element is omitted, then the program does not know where the bypass flow was supposed to go, and therefore sends the bypass flow directly to the outfall. You will get a user notification telling you
about this when it happens.

See Also

How can I direct the bypass flow?

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