SSA - Error 600 and warning 142

SSA - Error 600 and warning 142

nmartinQY8ZA
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SSA - Error 600 and warning 142

nmartinQY8ZA
Contributor
Contributor

I am working to set up bypass links in SSA and I cannot get the model to run because of this error: "ERROR 600 : On grade Inlet 132 does not have two outlet links. At least one stormwater sewer pipe and a bypass gutter link must be defined." The manual says this error is self explanatory, which it is not. i.e., is the inlet NOT supposed to have two outlet links, or is it supposed to have two? Each on-grade inlet can ONLY have a single bypass outlet link, which have been specified in this model.

 

I also get this warning: "WARNING 142 : Outlet invert elevation defined for Upstream Roadway Link 132-76_B is below the storm drain inlet rim elevation. Assumed the upstream roadway link outlet invert elevation equal to the storm drain inlet rim elevation. Please verify the 'Upstream roadway links' defined for storm drain inlet 76." There are no backsloping pipes in this model.

 

Other forums say to resolve error 600 by changing the inlet to "on sag", which might resolve the issue, but then the model doesn't actually fulfill the purpose of setting up bypass links in the first place. Others say to check for backsloping pipes, which I have. Please help in getting this to work and explaining how to fix these errors/warnings.

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Message 2 of 3

matt_anderson_pe
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Collaborator

An on-grade inlet requires a "curb & gutter" transect and an underground pipe (two outlet pipes)

 

THe transect outlet needs to be at the rim elevation.

Matthew Anderson, PE

Inundar, LLC
https://wettingthewhetstone.substack.com
Message 3 of 3

nmartinQY8ZA
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Contributor
Accepted solution

I changed the bypass link inverts to the rim elevations of the connecting catch basins and the model now runs successfully.

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