Clearing the bottom outlet of the Jotty Dam (74)

Project owner EDF Petite Hydro

Type of project Unblocking of the bottom outlet

In 2015, during a flushing operation, debris (mainly trunks, stumps and sediment) formed a blockage in the middle of the Jotty outlet tunnel, 20 metres below the reservoir level.

Main technical features

The remotely operated underwater machinery solution was selected. HYDROSTADIUM participated in the design of this prototype and in the design of a significant part of the machine’s control system (software for co-piloting the remotely operated bulldozer).