At the end of September 2025, Rijkswaterstaat began major maintenance on the Bosscherveld lock. As announced, contractor combination Mourik-Swarco is thoroughly servicing the doors and drive mechanisms. We took a behind-the-scenes look to see how the work is progressing.
On the boat to Sliedrecht
In October 2025, the first lift gate was hoisted out. This is probably the first time since the lock was put into use in 1930. The massive piece of riveted steel weighing 75,000 kg was lifted onto a ship by a crane.
This ship then took the gate to Sliedrecht, where it underwent a thorough inspection and is now being repaired. Before repair, the gate is first blasted: the old paint layer and all dirt are removed. Then the gate is repaired and reinforced, and conserved (painted) again.
Once this gate is reinstalled, the other gate can be hoisted out. One gate thus retains the function of water barrier.
Maintenance urgently needed
It was known that the gates were not in good condition. However, a first look at the hoisted gate made clear that there was more damage than expected. Over the years, water and collisions have caused cracks in the steel. It is therefore urgent that both gates receive a thorough refurbishment to last for many more years.
Further work
Until the end of June 2026, the Bosscherveld lock will undergo the necessary renovations and replacements. In addition to refurbishing the two lift gates, we will completely replace the machinery, chains, and ballast boxes. The monumental lock will receive a new type of chains that require low maintenance.
Communication about maintenance progress
Until the end of the works, we will regularly provide updates about the work and planning via the regular communication channels.
More information about Bosscherveld lock works
Rijkswaterstaat South Netherlands continuously manages and maintains the Maas River and the canals in North Brabant. This is to keep the waterways smooth and safe for shipping.
Many bridges, tunnels, locks, and viaducts were built in the last century and therefore need maintenance. Intensive use and heavier traffic can sometimes cause system failures and require renovation and replacement of many of these structures. For more information, see the page Maintenance Maas and canals North Brabant and Limburg.
If you have questions or comments about these works, please contact us.
