The technology for the construction of a lock gate is similar to the technology used for bridges. In fact, a lock gate is a bridge on its side. The greatest difference is that the rigidity of bridges is normative for their design. Behind this is the fact that people prefer not to walk or drive on a wobbly bridge. This focus on stiffness has resulted in bridges that are much stronger than necessary.
This aspect of comfort does not play a role for lock gates. Lock gates can therefore be designed more slender, which means that the construction costs will very likely be lower than for a door of steel or wood. On top of this there is the saving on maintenance. Lock gates are expected to last for decades longer, without any significant maintenance.
Another big advantage is that the doors can be built in a weight-neutral way. This leads to a much lower load on suspension and the equipment for the moving system. These can be produced considerably lighter.
At the beginning of 2012, the first four InfraCore® lock gates were installed in the Erica-Ter Apel Canal. The eight largest lock gates in the world were installed in the Wilhelmina Canal in Tilburg.