Skip to main content

VIDEO: Kolin-Kalyon and Limak-Cengiz win North Marmara connector tenders

May 23, 2016
Turkey has awarded the much-delayed tenders for the motorway connector roads to Istanbul’s Third Bosphorus Bridge.

The 90km motorway section between Kinali and Odayeri was awarded to the Kolin-Kalyon joint-venture with completion in seven years and nine months, according to Turkish media reports. The 170km section between Kurtkoy and Akyazi was awarded to Limak-Cengiz joint-venture which will finish the work in six years and nine months.

The tenders were part of the 260km North Marmara Motorway project that includes the soon to be completed Yavus Sultan Selim Bridge. The Northern Marmara Motorway will, when completed, flow around the northern sections of Istanbul, the country’s financial centre.

The highway will cross the Bosphorus Strait over the Yavuz Sultan Selim Bridge and serve as the outermost beltway of Istanbul. The route runs from Kınalı on the European side to Akyazı on the Asian side. Importantly, the eastern end of the motorway will connect with the Otoyol 4, also known as Anadolu Otoyolu or Anatolia Motorway. The O-4 is a toll motorway connecting the northeastern Marmara Region to the Central Anatolia Region, including the capital Ankara.

The four-lane Third Bosphorus Bridge, now officially the Yavuz Sultan Selim Bridge, is a 2.2km cable-stayed and suspension crossing for rail and motor vehicles. The longest span is just over 1.4km and width is 58.4m. The bridge sits between Garipçe in Sarıyer on the European side and Poyrazköy in Beykoz on the Asian side. Work started in May 2013 and completion is expected later this year.

Related Content

  • Cowi and Dissing+Weitling win Shenzhen and Zhongshan bridge deal
    April 18, 2016
    Engineering group Cowi and architecture firm Dissing+Weitling have won the tender for construction of a bridge and tunnel project to connect the Chinese cities of Shenzhen and Zhongshan. The US$5.51 billion 24km project in the southern province of Guangdong will include the world’s widest immersed road tunnel, two signature suspension bridges and two artificial islands. The road in the Pearl River Delta will have eight traffic lanes in two directions and a daily capacity of 90.000 cars, according to a
  • Wirtgen group machines flying high at İstanbul Yeni Havalimanı
    May 21, 2018
    Plant and machines from Wirtgen, Vögele, Hamm and Benninghoven are playing a vital part in the construction of Istanbul’s new airport . Istanbul’s new airport is Turkey’s biggest infrastructure project ever. It is also expected to become the world's largest airport by estimated passenger numbers.
  • Storstrøm Bridge JV asks for extension
    July 13, 2023
    The original estimated cost was around €280 million for the 4km cable-stay structure when the contract was awarded by the Danish Road Directorate (Vejdirektoratet).
  • Riga Northern Transport Corridor
    February 14, 2012
    The Riga Northern Transport Corridor is an ambitious transport E1.5 billion infrastructure development project involving a new 30km long inner city highway. Its aim is to provide a fast connection between the east and west of Riga City and integrate the city and Riga port into the Trans-European road network. It will include another major new crossing of the Daugava River which is 420m wide at this point. The project will lead to a substantial improvement of transport efficiency in the Riga region and will