Dike reinforcement Monnickendam Sea dike
Dike reinforcement project between Monnickendam and De Nes temporarily suspended
The Hollands Noorderkwartier Water Board (HHNK) is temporarily halting preparations for the reinforcement of the Monnickendam Seawall. The national Flood Protection Program (HWBP) has programme the project from the programme because the scope of the reinforcement work is not yet clear enough.
Background to the decision
The dike was deemed unstable in 2013. Since 2021, we have explored various ways to reinforce the dike. Based on the assessment methods used, HHNK has deemed the dike unsuitable. However, newly available information suggests that the dike may meet the standards, raising questions about the need for reinforcement.
Research into a new assessment method
Instead of reinforcing the dike, the HWBP is launching a nationwide research project to develop better assessment methods for dikes along large lakes, such as the Markermeer. The methods currently in use have proven to be inadequate. The research will be completed in 2027. Once the new method is available, the dike will be reassessed, and we will decide whether reinforcement is still necessary.
Safety and Inspections
No work is currently being carried out on the dike. However, we will continue to inspect the dike carefully and more frequently, especially during storms, high water, and heavy rain. There are no immediate safety concerns, but the dike remains non-compliant with current safety standards.
Impact on other plans
Plans that were linked to the dike reinforcement, such as potential improvements to the N518 and a bike path, will not be further developed as part of this project. The parties involved are exploring whether these issues can be addressed in a different way.
Information Session
On July 1, 2026, starting at 7:00 p.m. (doors open; programme begins programme 7:30 p.m.) at atMirror, Waterlandse Zeedijk 1, Monnickendam, we are hosting a meeting for residents and interested parties to explain the decision and the next steps.