Sluis Leidschendam, Navigation lock in Leidschendam, Netherlands.
Sluis Leidschendam is a navigation lock that connects water levels between the Rhine and Schie waterway systems in the Leidschendam-Voorburg area. The structure spans approximately 75 meters with a northern chamber about 7 meters wide, accommodating vessels up to 60 meters long.
From 1281 to 1648, this site contained a dam that marked the water boundary between the Rijnland and Delfland regions. The present lock developed as a modern structure to manage water flow and vessel movement between the two waterway systems.
The lock keeper's office displays neo-Renaissance features with red brick walls, slate roofs, and carved stone ornaments from its construction period. This building defines the waterside and reflects the craftsmanship of the late 19th century.
The lock operates via marine radio channel 18 and is managed by the Province of South Holland from the Central Operations Center in Leidschendam. Visitors can observe operations from public areas, and the site is accessible on foot or by bicycle.
Approximately 12,000 vessels navigate through this lock annually, demonstrating its continuing importance for shipping in the region. This high volume shows how vital the connection between the two waterway systems remains for daily operations.
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