All about the J.J.Slimsluis: 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 Garmerwolde 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?
J.J.Slimsluis
Zelfbediening mbv vaarsleutel. Bij storing, bellen met het algemene tel.nr. van het waterschap Noorderzijlvest: 050 304 8911
Width: 3 meter, length: 10 meter.
Self-service via a general key (station fee 35.00 euros), which is available for boatmasters for multiple works of art in our management area.
See https://routesingroningen.nl/vaarinformation/self-service-bridges-and-locks/.
All days, between 00:00h and 23:59h ZELF
Operating times all year round
From 01-01 until 31-12:
Self-service via a general key (station fee 35.00 euros), which is available for boatmasters for multiple works of art in our management area.
See https://routesingroningen.nl/vaarinformation/self-service-bridges-and-locks/.
All days, between 00:00h and 23:59h ZELF
Administrator
Waterschap Waterschap Noorderzijlvest
Postbus 18
9700 AA Groningen
Administrator visiting address
Stedumermaar 1 Groningen
Phone: 050-3048911
Data updated: 28 Mei 2025, 14:03 uur, all data comes directly from Rijkswaterstaat systems.
