All about the sluis Middelharnis: service times, location and contact details. On the water map below do you see this lock complex in its immediate vicinity. On the right on this page you will find the locking times, additional information and the telephone numbers and VHF channels.
Open the Water Map for Middelharnis in full window
For seasoned water sports enthusiasts it is a simple procedure, but if you are not yet experienced on the water, entering and exiting the lock can be an impressive experience. How does it work, where do you moor, what should you pay attention to?
| Width 7 meter | Lock length 29 meter |
| Threshold depth (buiten) 2.7 meter | Threshold depth (binnen) 2.6 meter |
| VHF-Channel 12 | Phone number 0187-482068 |
From 05-01 until 29-02
Every two hours, last at 4:30.From 01-03 until 31-03
Every hour, last at 5:30.From 01-04 until 30-04
Every hour, last at 6:30.From 01-05 until 15-09
Every hour, last at 9:30.From 16-09 until 30-09
Every hour, last 7:30.From 01-10 until 31-10
Every two hours, last at 6:30.From 01-11 until 21-12
Every two hours, last at 4:30.From 22-12 until 04-01
All days: closedAdministrator visiting address
Koningin Julianaweg 45 Middelharnis
Phone number: 140187
Data updated: 23 Januari 2026, 13:22 uur
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