Lock stairs
A lock staircase is a lock in which several lock chambers follow one another directly or with short intermediate stops in order to overcome a greater lifting height . This technology is mainly found in older lock systems, as a ship lift would be built for such requirements today . In the past, double and triple locks were built, from around 4 lock chambers one speaks of a lock staircase. Compared to a ship lift, the lock staircase has the problem that the time-consuming lock process has to be carried out several times, and a lot of space is also required for the alternate and waiting basins (oncoming traffic). On the other hand, a ship lift is technologically more demanding and limited in practical size.
Well-known lock stairs
- Lock stairs Niederfinow
- Fonserannes lock staircase on the Canal du Midi
- Staircase of locks at Golbey on the Canal des Vosges
- The Arzviller lock staircase on the Canal de la Marne au Rhin
- Neptune's Staircase on the Caledonian Canal in Scotland
- Caen Hill Flight Kennet and Avon Canal in Devizes , England
- Carl Johans locks on the Göta Canal near Berg in Sweden
- Vrangfoss on the Telemark Canal in Norway
- Lock stairs in Mouleydier on the Dordogne , France
- Rogny lock staircase on the Canal de Briare