Rosia Water Tanks, Military water storage facility in Rosia Bay, Gibraltar.
The underground structure contained six parallel chambers constructed with British bricks and sand-lime mortar, designed to store water for naval vessels.
Admiral John Jervis recommended the construction of these tanks between 1799 and 1804 to establish a reliable water supply for the Royal Navy.
The tanks supported British naval operations in the Mediterranean, including Nelson's fleet before and after the Battle of Trafalgar in 1805.
The system collected rainwater from the Victualling Yard roof through gravity feed mechanisms, maintaining water purity for distribution to ships.
These tanks remained functional until 2004, providing storage for desalinated water before their demolition in 2006 for residential development.
Location: Gibraltar
Inception: 1804
Address: Rosia Bay, Gibraltar
GPS coordinates: 36.12130,-5.35179
Latest update: March 6, 2025 12:25
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