Old Piedras River Aqueduct, Colonial waterworks in San Juan, Puerto Rico
The Old Piedras River Aqueduct features six sedimentation tanks, a valve room, and an engine room within a 23-acre historic district along the river.
Engineer Juan Manuel Lomber designed the original aqueduct in 1847, which underwent modifications until the Spanish-American War period in 1898.
The structure represents engineering advancement in Puerto Rico, demonstrating early water management solutions that supported urban growth along Ponce de León Avenue.
The site sits adjacent to the University of Puerto Rico Botanical Garden, with nine acres managed by the Puerto Rico Conservation Trust for educational purposes.
This water infrastructure stands as the only remaining Spanish-period aqueduct across all United States territories, earning National Treasure designation in 2014.
Location: Puerto Rico
Location: San Juan
GPS coordinates: 18.38917,-66.05889
Latest update: March 4, 2025 16:19
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