Aerial view of the Fonserannes lock staircase

Aerial view of the Fonserannes lock staircase
The Fonserannes lock staircase consists of 7 locks and 3 ?????. It enables
vessels to negotiate a rise of 21.5 metres in a distance of 300 metres.
L'échelle de Fonserannes est composée de 7 écluses et 3 sas qui permettent
aux bâteaux de franchir une dénivellation de 21,5 m. sur une distance de
300m .
The Fonserannes lock Fonserannes (left) and the electrically powered water slope (right)
(photo VNF)