Improvement of the Mijzenpolder embankment

Parts of the embankments around the Mijzenpolder had been rejected and needed to be improved. The company JP Schilder BV from Ursem started the dike improvement work last October. This work was completed at the beginning of February. The water board has thus ensured that the embankment will again meet safety requirements for the next 20 to 30 years.  

What happened?

The problem with the Mijzenpolderdijk was that it was 'inwardly unstable' in some places. This meant that there was too much risk that the dike could slide toward the polder when the water level in the ring canal was high and there was heavy rainfall. The most obvious solution was to make the dike gentler on the inside and widen the support berm by adding soil. This was not always possible because there are buildings relatively close to the dike. In those places, we made the dike more stable by raising the inner berm. For homes northeast of Schermerhorn and along the reservoir on the north side of the Mijzenpolder, revetment (wood) or a structural screen (steel sheet piling) was installed.

Who do we work with?

In the summer of 2025, the work was contracted to JP Schilder BV from Ursem, which carried out the work together with Roelofsen Machineverhuur en Grondwerken BV and Heicombinatie SPS.

Where is the project taking place?

The route runs around the Mijzenpolder.

When will the project take place and how long will it last?

Permits for the project were granted in the spring of 2024 by the water board (licence ) and the municipalities of Koggenland and Alkmaar (environmental permit). 

The work started last October and was completed in early February. Depending on the weather, the dike will be further seeded with grass seed this spring.

Want to know more?

For more information about this project, please contact Ms. R. Ralduin (environmental manager) via ourcontact formor by calling 072 - 582 8282.