Project Information: Haliç Metro Crossing Bridge Construction

Halic Metro Bridge
Halic Metro Bridge

📩 09/04/2023 18:19

Contractor: Astaldi.SPA-Gülermak Heavy Industry Construction and Contracting Co.
Length: 936 Meter.
Number of Stations: 1
Station: Unkapanı
Route: Azapkapı Viaduct + Steel Bridge + Mobile Bridge + Unkapanı Viaduct
Tender price: 146.722.828,25 € + VAT
Tender Date: 06.10.2008
Contract Date: 19.12.2008
Starting Date: 02.01.2009
Duration of Work by Contract: 600 days
2012 As of January
Work Amount: 91.684.080 € + VAT
Date of Completion: 07.07.2011
2. Time Extension
Date of Completion: 28.06.2012

The projects related to Golden Horn Bridge Transition have been approved by the Protection Board on 06 July 2005. Haliç Metro Bridge Crossing; has been awarded according to the approved project. 6 October 2008 tender has been realized and 146.722.828,25 € + VAT business Astaldi SPA-Gülermak Ağır San. Const. and Taah. Inc. has been awarded to the business partnership. The contract was signed on 19.12.2008 and the works were started on 2 January 2009. Total length of work within 936 m. Azapkapı Viaduct + Steel Bridge + Mobile Bridge + Unkapanı Viaduct will be produced.

16 pieces (9 on the Beyoğlu side, 7 on the Unkapanı side) and 4 pieces in the Golden Horn on the land were carried out.

When the construction of Haliç Metro Pass Bridge, which is one of the most important stages of Istanbul Metro, is completed, passengers boarding from Hacıosman will reach the Yenikapı transfer station without interruption. Here with the Marmaray link, Kadıköy-Kartal will be able to reach Bakırköy Atatürk Airport or Bağcılar Olimpiyatköyü Başakşehir in a short time.

After the completion of 51 track piles, which were manufactured in Portugal and brought to Haliç in three times, were started to crash. 27 2010 48 32 16 XNUMX pile In the stakes; reinforcement and concrete casting works were completed. To date, XNUMX has been completed for the forging and pouring of the main carrier sea pile. XNUMX grain protection and platform pile drilling and concrete casting has been completed. The archaeological excavations were completed in the Beyoğlu and Unkapanı viaduct regions and the basic production was started.

Production of 18 pieces bored pile, 2 unit basic production, 4 unit foundation (pile head) manufacturing and 1 unit well foundation production were completed on Beyoğlu side. 1 pcs wells are under construction.

2 pcs manhole foundation production is continuing in Unkapanı region and 16 has been completed from 6 pile manufacturing. bored pile manufacturing is in progress.

The opening of the openings for the pile head in the sea stakes is continuing on the P3-3 and P3-4 feet. P3-1 and P4-1 pegs at the foot -3 m pile cutting and opening of the opening has been completed.

It is planned to start the installation of the bridge at the end of January.


  • First Shipment 13 track (1200 tone)
  • Second Shipment 11 parts (2035 tone)
  • Third Shipment 11 track (1996 tone)
  • Fourth Shipment 16 track (2500 tone)
  • The seismicity of the Golden Horn, the faulting condition, the ground conditions, these pile designed as a result of the analyzes made by considering the Haliç floor mud layer, each of these piles are projected according to the final load value of 4.700 tons.
  • In these groups, there are 5-5-9-9-4 carrier pegs from Unkapanı to Beyoğlu, respectively, including a pile group under each foot of the Haliç Metro Transition Bridge.
  • The steel pipes were lowered to the sea by a crane with a lifting capacity of 800.
  • Moving by two different cranes, the movements are fixed.
  • 2 pieces of excavation barges, 1 pieces pump pontoons were installed.
  • Safety boats and trailers of various strengths serve.

The Golden Horn Metro Transition Bridge is the average 200 m of the current Unkapanı Bridge. to the south. Ask Cable-stayed ask bridge system is applied to the advanced technological bridges in the world. In this system; two pylons (main carrier foot). Bridge decks will be carried by hanging them on cables. In the water part of the bridge (including pylons) there will be a total of 4 feet.

Length of the bridge: 936 m. (460 m. length on sea) The middle rail system will be constructed as an open bridge to both sides. There are 1 units (Golden Horn) on the bridge and 8 m. will be built in length.

So far, the improvement of the ground and the construction of the basic system has been carried out. After the realization of some project revisions requested by UNESCO World Heritage Center about the superstructure, the productions will continue. With the completion of the bridge in 1 years and installation of rail and electromechanical systems, it is planned to reduce the Metron to the Golden Horn at the end of 2012.

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