The Northern Marmara motorway is a bypass for a city with severe traffic congestion - Istanbul. From Akyazi on the Asian side, the motorway crosses the Bosporus Straits on the newly built Third Bosporus Bridge. From there, the motorway continues northwest on the European side of the straits to Istanbul’s new third airport. The Çayırköy section includes two bridges, both built by the incremental launching method.
Challenge:
Solution:
Construction time
2018
Country
Turkey
City
Istanbul
Construction work by:
FREYSAŞ FREYSSINET YAPI SISTEMLERI SAN.A.S.
Type of structure
single-cell cross-section with inclined webs
Overall length
756 m
max. span
55.29 m
Number of sections
29 sections per bridge
Width of supporting structure
21.5 m
Casting yard
32 m
Cross-section height
3.93 m