If routing is enabled, this returns zero.
public double getSurfaceOverflow(
double dtSec
)[Missing <param name="dtSec"/> documentation for "M:DHI.Mike1D.RainfallRunoffModule.LID.LIDLayerSurface.getSurfaceOverflow(System.Double)"]
[Missing <returns> documentation for "M:DHI.Mike1D.RainfallRunoffModule.LID.LIDLayerSurface.getSurfaceOverflow(System.Double)"]