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Beylerbeyi Palace Tunnel

General Information

Name in local language: Beylerbeyi Sarayı Tüneli
Beginning of works: 1829
Completion: 1832
Status: out of service

Project Type

Structure: Tunnel with masonry lining
Function / usage: Road tunnel


Location: , ,
Coordinates: 41° 2' 34.65" N    29° 2' 29.62" E
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Technical Information


length 230 m

Excerpt from Wikipedia

The Beylerbeyi Palace Tunnel (Turkish: Beylerbeyi Sarayı Tüneli) is a historic tunnel under the Beylerbeyi Palace in Beylerbeyi neighborhood of the Üsküdar district in Istanbul, Turkey connecting Üsküdar with Beylerbeyi and Çengelköy.

Commissioned by Ottoman Sultan Mahmud II (reigned 1808–1839) in 1829 and completed in 1832, the tunnel is situated under a hill on the Asian side of the Bosphorus, which is today the terrace garden of the later-built Beylebeyi Palace.

The tunnel with 2.90 m (9.5 ft) clearance served until the 1970s. It was used as museum and exhibition site after its closure.

On 19 September 2016 the tunnel re-opened to traffic in order to ease the traffic congestion on the coastal road in the area under the Bosphorus Bridge, and later shut down again to preserve the historic structure from damage caused by exhaust emissions.

Text imported from Wikipedia article "Beylerbeyi Palace Tunnel" and modified on 22 October 2020 according to the CC-BY-SA 3.0 license.


Currently there is no information available about persons or companies having participated in this project.

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