# The battle against the water Brielse Maas concluded

To prevent salinisation of the land, the Brielse Maas is closed off from the sea by constructing a dam where the Brielse Maas flows into the sea. The dam has been completed except for a closing hole in the middle, which will be closed by sinking a caisson. SHOTS: - a topographical map shows the situation of the water management near the Voorne-Putten islands in South Holland and the location of the Closure; - a simulation of the Closure is carried out on a small scale in a large basin at the Waterloopkundig Laboratorium in Delft; engineers observe and study the course of events and take measurements; - at the location of the Closure, a floating concrete caisson is brought in by tugboats; at slack tide it is sailed into the hole and placed.

- Kind: Film
- By: Polygoon-Profilti (producent)
- Archive: [Europeana](https://www.europeana.eu/item/2051906/data_euscreenXL_https___www_openbeelden_nl_media_660192)
- Licence or status: [CC BY-SA 4.0](http://creativecommons.org/licenses/by-sa/4.0/) (as the archive states it)
- Credit: Netherlands Institute for Sound & Vision
- Who can watch: Teens profiles and older (the archive gives no rating; placed by Invisible Network from its collection and subjects)

[Watch now](https://invisiblenetwork.ai/watch/archive/europeana/2051906~data_euscreenXL_https___www_openbeelden_nl_media_660192?play=1)