All about the Roskamsluis: 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 Heerhugowaard 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 50.4 meter |
| Threshold depth (buiten) 2.6 meter | Threshold depth (binnen) 2.6 meter |
| VHF-Channel - | Phone number 0881110434 |
From 01-04 until 04-05
Working days: between 05:30 and 22:00From 05-05 until 13-05
Working days and Holidays: between 05:30 and 22:00From 14-05 until 31-05
Working days: between 05:30 and 22:00From 01-06 until 15-09
Local control between 09.00 and 19.00From 16-09 until 31-10
Working days: between 05:30 and 22:00From 01-11 until 31-03
Sunday and Holidays: closedAdministrator visiting address
Houtplein 33 Haarlem
Phone number: 0800-0200600
Data updated: 24 September 2026, 14:34 uur
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