All about the Molenkolksluis: 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 Kolhorn 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 40 meter |
| Threshold depth (buiten) 2.4 meter | Threshold depth (binnen) 2.3 meter |
| VHF-Channel - | Phone number 0224-531254 |
From 01-01 until 31-03
Sunday and Holidays: closedFrom 01-04 until 04-05
Working days: between 05:30 and 21:45From 05-05 until 13-05
Working days and Holidays: between 05:30 and 21:45From 14-05 until 23-05
Working days: between 05:30 and 21:45From 24-05 until 31-05
Working days: between 05:30 and 21:45From 01-06 until 15-09
Working days: between 05:30 and 21:45From 16-09 until 31-10
Working days: between 05:30 and 21:45From 01-11 until 23-12
Sunday and Holidays: closedOn 24-12
All days: between 05:30 and 16:00From 25-12 until 30-12
Sunday and Holidays: closedOn 31-12
All days: between 05:30 and 16:00Administrator visiting address
Houtplein 33 Haarlem
Phone number: 0800-0200600
Data updated: 03 Februari 2026, 11:06 uur
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