Tryvannstårnet is a 118-metre (387 feet) tall broadcasting tower near
Oslo
Oslo ( , , or ; sma, Oslove) is the capital and most populous city of Norway. It constitutes both a county and a municipality. The municipality of Oslo had a population of in 2022, while the city's greater urban area had a population of ...
, located 529 metres (1,736 feet)
above mean sea level
Height above mean sea level is a measure of the Vertical position, vertical distance (height, elevation or altitude) of a location in reference to a historic mean sea level taken as a vertical datum. In geodesy, it is formalized as ''orthometric h ...
on the summit of
Tryvannshøyden hill overlooking lake
Tryvann
Tryvann is a small lake in Nordmarka, the forest area just north of Oslo city, near the Holmenkollen ski jump. By the water lies a cabin called Tryvannstua, in which there is a café open regularly during both summer and winter. On a hill above t ...
.
Tryvannstårnet was built in 1962 and has an
observation deck
An observation deck, observation platform, or viewing platform is an elevated sightseeing platform usually situated upon a tall architectural structure, such as a skyscraper or observation tower. Observation decks are sometimes enclose ...
at a height of 60 metres (197 feet), from which, weather conditions permitting, the view extends to the border with
Sweden and
Gaustatoppen mountain. The observation deck was closed in 2005 because of new
fire safety
Fire safety is the set of practices intended to reduce the destruction caused by fire. Fire safety measures include those that are intended to prevent the ignition of an uncontrolled fire and those that are used to limit the development and ef ...
regulations which would have required expensive modifications which coincided with rapidly declining visitor numbers.
In the 1980s and 1990s annual visitor numbers averaged 100,000, but in the last year it was open to the public, only 25,000.
There is a large underground shelter beneath Tryvannstårnet.
References
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External links
Web camerain the tower rotates slowly to give 360° view
{{DEFAULTSORT:Tryvannstarnet
Towers completed in 1962
Towers in Norway
Buildings and structures in Oslo
1962 establishments in Norway
Norkring
Transmitter sites in Norway