The construction of the water tank and installation of the light occurred in the 20th century, probably around the 1980s.[1]
Architecture
The structure is situated in an isolated location, near the forest of Boa Viagem, on a hilltop 4 kilometres (2.5 mi) southwest of the mouth of the Tagus River.[1] Situated around the tower is the geodesic marker of Chibata, marking an altitude of 117.47 metres (385.4 ft), various rural residences and a windmill in ruins.[1] To the northwest is the Convent of the Capuchos and the Church of Nossa Senhora da Conceição, in addition to the lookout of Capuchos.[1]
The structure is a 23 metres (75 ft) water tank, constructed of reinforced concrete painted light yellow, over which is a cylindrical tower of smaller diameter, also in reinforced concrete, but painted like tile or adobe. The tower consists of a circular tube and lighthouse beacon, in addition to various telecommunication antennas.[1] The portion associated with the water tank includes a fenestral radial, with a stone parapet, that includes three levels and decorated in hammered stone with doorway.[1] The lighthouse beacon functions occasionally, with a range of 15 nautical miles (28 km).[1]
