Maassluis braces for flooding as high water levels expected tomorrow
Residents and businesses in Maassluis are urged to prepare as water levels are expected to reach 2.00 metres above NAP, flooding the unloading quay. Move vehicles to higher ground to avoid damage.
| Key Data Point | Details |
|---|---|
| Expected Water Level | ~2.00 metres above NAP (around 6:50 AM, 25 March 2026) |
| Affected Location | Unloading quay on Burgemeester de Jonghkade, Maassluis |
| Flooding Threshold | Starts at 1.80 metres above NAP |
| Municipality Actions | Barrier closure, SMS alerts to residents and businesses |
| Responsible Authority | Municipality of Maassluis, Netherlands Water Management Centre (RWS) |
| Risk for Vehicle Owners | Vehicles left on the quay may be partially submerged; no towing planned |
| High Water Map | Rotterdam High Water Map |
The Municipality of Maassluis is responsible for local crisis management, including flood prevention and public safety measures during high water events. It collaborates with Rijkswaterstaat to monitor water levels and issue timely warnings to residents and businesses.
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Read the full translated article below
Expected high water in Maassluis
On Wednesday, 25 March 2026, around 6:50 AM, a water level of approximately 2.00 metres above NAP is expected at the outer harbour in Maassluis. This is an estimate. At this water level, the unloading quay on Burgemeester de Jonghkade will be submerged.
Expected consequences
From 1.80 metres above NAP, the unloading quay on Burgemeester de Jonghkade will begin to flood.
What is the municipality doing?
The municipality will close off the unloading quay with a barrier to prevent vehicles from being parked there. You can still leave the quay by opening (and closing) the barrier yourself. The municipality will inform the contact person, residents of 't Hoofd and businesses on Burgemeester de Jonghkade and Govert van Wijnkade via the SMS system. If you would also like to be notified of high water, send a message to crisisbeheersing@maassluis.nl.
The police will warn vehicle owners if necessary.
What can you do?
You are responsible for taking measures to prevent damage to your property. Consider moving your car to higher ground. Do not park your vehicle on the unloading quay on Burgemeester de Jonghkade under any circumstances. If you are parked in an area where high water is expected, move your car to another location in good time. Vehicles that remain parked when the quay floods will not be towed away and will end up partially submerged. Parking in areas outside the dikes is always at your own risk.
The prediction of elevated water levels depends on several factors: wind direction, wind speed, the path, size and depth of the depression, possible large water discharge from upstream rivers and the position of the moon. The municipality receives this data from the Netherlands Water Management Centre (part of Rijkswaterstaat).
High water map of the Municipality of Rotterdam
On the high water map of Rotterdam , you can see how far the water may reach if you enter an expected water level . To do this, use the expected water level from Rijkswaterstaat. Alternatively, click on the red dot with the current water level in the map. In the pop-up window, you can then read the maximum expected water level from the graph. However, the imagery does not indicate the likelihood of flooding occurring. The high water map provides an indication that may differ from reality (due to wind, waves and surge).