639 - Üçüncü köprü - ICARailway Infrastructure

Gebze Halkali high speed line project


  • Nov 12, 2015
    Tender for preliminary analyis of 3rd bridge-3rd airport-Halkali railway. 10 offers received.
  • Feb 18, 2016
    Proyapi is awarded for the preliminary analysis tender of 3rd bridge-3rd airport-Halkali railway (TL 4.5 mn).
  • Aug 26, 2016
    3rd bridge (Yavuz Sultan Selim bridge) and North highway commissioned. 2 lanes of the bridge is reserved for rail.
  • Feb 2017
    Environmental impacts analysis started for 3rd bridge-3rd airport-Halkali railway. 63-km-long railway is worth TL 4.4. bn.
  • Oct 2017
    Details of 1st phase of project (Gebze-3rd bridge) unveiled. Trains will call at Pendik and Sabiha Gokcen airport. 1st phase is 56 km long. Construction time is determined as 18 months. Project is worth TL 4.5 bn. Tender in 2018. Freight trains will also use the line.
  • Mar 2018
    Environmental impact analysis started for 56-km-long Gebze-Sabiha Gokcen airport-3rd bridge railway. Project is worth TL 4.9 bn.
  • Jun 2018
    Arslan: Tender for Gebze-Sabiha Gokcen-3rd bridge-3rd airport high speed line will be opened in late 2018.
  • Oct 2018
    Many “not yet started” projects suspended with New Economic Program of the government. Gebze-Sabiha Gokcen-3rd bridge-3rd  airport-Halkali, Ankara-Sivas, Ankara-Afyonkarahisar-Izmir, Sivas-Erzincan are given priority and will continue.
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12 replies »

  1. Looks like a beaut of a bridge, not to mention a beaut of a high-speed line! If freight trains don’t use the bridge, will they use the tunnel under the Straits?


  2. Phil,
    The Marmaray project is many years behind schedule, and the specification has been changed several times. The lines which ran into central Istanbul on both Asian and European sides were both completely worn out, so the tracks have been lifted and all the signalling and power equipment removed, in anticipation of a total rebuild. The central section – including the tunnel under the Bosphorus – has been open for a few years. However there are still significant gaps on both sides, where total rebuilding of the railway hasn’t even started yet. All that is left is a muddy path where the railway used to be. You can expect to wait for another couple of years before through trains start running, I would guess.


    • Thanks, Jeff, for your detailed response. That Europe and Asia may some day be able to interchange freight traffic is exciting. Let’s hope that some day comes soon!

      I also look forward to Europe being linked to China and the intermediate countries via a standard-gauge line. Such interchangeability has been a given in North America for over 100 years, as it has been in all of Europe, except Spain, I think.

      By the way, may I ask you a favor? I’m a professional writer/editor with 16 years’ experience, most recently as editor of Investor’s Digest of Canada based in Toronto.

      But I’m now hoping to start writing — for pay, of course!– about railways and airports. So, do you know of any railways, railway industry organizations, or construction companies that build railways that might be looking for an English language writer/editor? With such companies, I’m confident I could add value.


      Phil Fine
      Jerusalem, Israel


  3. Phil,
    I’ll keep my ear to the ground for you,but nothing immediately springs to mind.


  4. I have got one question: As of now I thought when Marmaray is complete, the YHT and hopefully some mainline trains are going to start from / terminate at Haydarpaşa.
    Now this article suggests that a few years after the completion of Marmaray, YHT trains to Ankara and Konya are going to cross the bridge, which is incompatible to connecting Haydarpaşa. Does that mean, Haydarpaşa is going to revived just for a few years and then closed down again (at least for YHT), having the trains terminate at Halkalı?


    • Good question. I just can say what I guess. Some of the trains will depart from Halkali, and some others from Haydarpasa. I’m quite sure there’ll be enough passengers from both sides. And note that Haydarpasa is a much better point for accessing city center of Istanbul.


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