Esclusas de Valdegurriana, Navigation lock in Zaragoza, Spain
The Esclusas de Valdegurriana is a lock system with four oval chambers on the Aragon Canal, overcoming a total height difference of 13 meters. The stones are crafted so water flows gradually between levels and boats can navigate through the different elevations.
The lock system was built between 1776 and 1790 as part of the Aragon Canal, commissioned by Count Floridablanca. Ramon Pignatelli directed the project and created an important work of hydraulic engineering in the region.
The locks show the craftsmanship of the 18th century, with stones that stonemasons carefully cut and marked for precise placement. You can see today how the oval shape of the chambers worked and how people moved boats through this water system.
The site is reachable on foot or by bicycle along the Valdegurriana path, which is part of the Zaragoza Green Ring. The path is flat and well-paved, making a relaxed walk or easy ride possible.
Each of the four chambers has an oval shape that lets water flow gradually between levels, gently raising or lowering boats. This design was unusual for its time and shows an innovative solution for managing water movement.
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