The total height of the foundation is then 45 meters with four towers (two per caisson) which are protruding just above water level when the foundation is immersed. Due to floatation and operational constraints, the upper part of the foundation which consists of a double walled tower with a diameter of 18 meters is only installed after floating the caissons into location and prior to immersion. The concrete caissons are hollow, with floor dimensions of 74 by 83 meters and a height of 20 meters. 'Both caissons are constructed by the joint-venture in a dry dock specially equipped for this project, on the bank of the strait and about 4000 meters from the immersion location.

'It is our task to move the two caissons that serve as a foundation for the pylons and to immerse them on location,' says Peter van Westendorp from Strukton. The new bridge will soon be suspended above the Dardanelles by two pylons. The construction of the bridge has been awarded to a joint venture consisting of two Turkish and two Korean companies, which in turn engaged Strukton's expertise for the immersing of the bridge foundations. The Çanakkale 1915 bridge will soon replace a number of ferry services over the Dardanelles, a narrow strait along the Bosporus. With a huge main span, the new mega bridge surpasses the current record holder - the Akashi-Kaikyo Bridge in Japan, which has a main span of 1,990 meters.

The Çanakkale 1915 bridge is part of the Çanakkale-Tekirdağ-Kınalı-Balıkesir highway project and will be 3.6 kilometers long, with another 800 meters to be built inland. The Dutch firm Strukton Immersion Projects literally lays the foundation for the huge bridge that will be opened for traffic around 2023. The new mega bridge will soon be the longest bridge in the world with a main span of 2,023 meters between the two towers. Near the Turkish city of Çanakkale, construction is being carried out on the Çanakkale 1915 bridge. Read the article below or click for the original G/W/W article in Dutch./ English translation The longest suspension bridge in the world We’ve made the design of the guiding system that will position the caissons accurately at a depth of 40 meters. UPDATE: In addition to caisson Europe, caisson Asia has also been successfully placed. We are proud that Strukton Immersion Projects asked us to participate in this special project. Grond/Weg/Waterbouw has written a nice article about building the longest suspension bridge in the world: Çanakkale 1915 bridge in Turkey. GWW Magazine: The longest suspension bridge in the world: Canakkale 1915

Suspension bridge poly bridge