Yes i believe you are understanding correctly. I created a quick and dirty illustration of what is happening, please see the attached PDF. In the scenario you described, would Pond 2 also need a culvert outlet or would the only outlet device be the weir? If I would need a culvert on both pond...
I am modeling a series of ponds; however, the discharge from the upstream ponds does not discharge to the surface of the downstream ponds. Instead, each upstream pond's discharge is being controlled by the culvert of the downstream pond’s outlet structure. For example, the controlled discharge...