Hi
Such valves system is not available directly in Telemac-2D and then not available in BK.
Depending on the study, the valves could be represented in different manner. A dike with culverts linking upstream and downstream, a weir, a local modification of topography, 2 boundary conditions which could be linked...
Thus, there is nothing automatic already available but a lot of possibilities more or less complex to implement and use.
Probably a bit of fortran knowledge will help you, particularly if the "automatic" part of the system is important
Regards