UPDATE, December 2, 2021: Flows have been restored on the Upper Madison River. According to NorthWestern Energy, the entity which operates the dam, “Hebgen Dam gate is open and outflows to the Madison River are restored. The water in the river is rising as desired. Crews completed the gate repair just before midnight.” While it … Continue reading Dam Malfunction on the Upper Madison River Leads to Significant Fish Strandings, Closures