rating curve of inline structure in 2D model

[Anonymous]

Hi Chris, I have a question to ask about the inclusion of inline structures within a 2D model. I need to insert two structures that regulate a reservoir: the first is a barrier in line with a Creager type overflow and four fixed bottom lights, the second is a wide threshold lateral overflow. In particular I need to insert an RC Outlet for each one, but the model keeps giving me this error. How can I solve it?
Thank you for your kind attention.

“ERROR with Connection(s)

The SA 2D Connection at lateral

has a rating curve with a starting flow elevation lower than the cell
it is connected to (this is not allowed in HEC-RAS):
cell 1048 cell elev 45.00
between Face Points 1418 1419
for 2D Area 2D

Error starting unsteady simulation – Stopping compute process”

[Anonymous]

I have the same problem. How do you solve it?

[Anonymous]

The rating curve correlates to the elevations associated with the connecting cells. In many cases the terrain needs to be manipulated due to cell representation. The rating curve you have entered has an elevation lower than the cell. So you either need to increase the curve to meet the minimum cell elevation or manipulate the terrain by depressing it (various methods for this) that way the curve “as-is” would work.

The same answer applies to flow lines for culverts as well

[Author]

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