All about the Nijveensterkolk: 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 Haren 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 4 meter | Lock length 18.4 meter |
| Threshold depth (buiten) 1.4 meter | Threshold depth (binnen) 1.4 meter |
| VHF-Channel - | Phone number 050-5350266 |
From 01-04 until 05-04
Sunday and Holidays: closedFrom 06-04 until 30-04
Sunday: closedFrom 01-05 until 24-05
Monday: closedFrom 25-05 until 21-07
Monday and Holidays: closedFrom 22-07 until 02-09
All days: between 09:00 and 19:00 (€6,-)From 03-09 until 30-09
Monday: closedFrom 01-10 until 31-10
Sunday: closedFrom 01-11 until 31-03
On request at a special rate €50,--.Administrator visiting address
Veenweg 46 Haren
Phone number: 050-5255381
Data updated: 13 Januari 2026, 09:30 uur
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