Patriarcal Reservoir

Louis-Charles Mary


© Museu da Água - EPAL

Open Visits

Saturday: 10h - 17h30

Performance Trampolim Gerador 16h, 17h, 18h

Regular Visits

Saturday: 10h - 15h30 (visitas a cada 30 minutos)


No reservation required; first-come, first-served

Maximum 15 people per visit

Photography allowed


The majestic stone chamber that forms the Patriarcal Reservoir lies underground, beneath the Príncipe Real square. Built between 1860 and 1864, it became the most important reservoir in the water supply network servicing the lower area of the city. Shaped like an octagon, it comprises 31 pillars rising to a height of 9,25 meters that support masonry arches which, in turn, support the vaults, creating a sense of almost overwhelming magnitude. Connected to the Águas Livres Aqueduct, the reservoir was deactivated in 1949. Presently, it provides underground access to the Loreto Gallery, through a 410m connection that leads to the São Pedro de Alcântara Garden.



(Português) Jardim do Príncipe Real, Praça do Prícipe Real


Directions: Google Maps / Apple Maps

Public Transport

Bus: (Português) 758, 773

Subway: (Português) Linha Amarela - Rato