This dialog window contains data necessary when considering interconnected basins.

Downstream Interconnected Node

Only required when the hydraulically interconnected basins option is applied.

It is the appropriate downstream node label containing the basin likely to affect the current basin outflow relationship.

Only required when the hydraulically interconnected basins option is applied.

Initial Rating Curve

Hydraulically interconnected basin flag to indicate an Tailwater Initial Rating for the immediate downstream of the current basin. This is only required with the level/discharge option for the normal outlet flow. It is not required if the 'Culvert Outlet' option is selected in the Discharge.

Flap Gate Option

If the flap gate flag is turned on then negative flows from a downstream basin are not allowed. If the flap gate flag is not turned on then negative flows through normal outlet can occur from higher levels in downstream basins.

Flows are only assumed to occur through the normal outlet. No allowance is presently made for spillway submergence or reverse spillway flows.