The General Directorate of Infrastructure Investments, under the Ministry of Transport and Infrastructure, will hold the tender for the Istanbul Northern Railway Crossing Project on October 14. According to the notice published in the Official Gazette, bidders will submit sealed bids for the "Design and Construction of Infrastructure and Superstructure Works Including Electrification".
Scope of the Project
Within the scope of the tender, a 122.3-kilometer double main line and 4.7 kilometers of single-track connections to this main line will be built. Additionally, 5 double-tube TBM tunnels totaling 36.2 kilometers, 22 double-track NATM tunnels totaling 23.3 kilometers, 17 cut-and-cover tunnels totaling 3.7 kilometers, two viaducts and 40 bridges totaling 22.1 kilometers, as well as stations and similar works will be constructed.
The construction work will be carried out in four sections. These sections consist of the following corridors:
- Çayırova-Sabiha Gökçen Airport-Kurtdoğmuş (28.49 kilometers)
- Kurtdoğmuş-Alibahadır (25.76 kilometers)
- Alibahadır-Yavuz Sultan Selim Bridge-Mithatpaşa (32.14 kilometers)
- Mithatpaşa-Istanbul Airport-Çatalca (39.49 kilometers)
The provisional guarantee amount was set at $5 million each for the first and fourth sections, and $2.8 million each for the second and third sections.
Bidding Process
The technical and financial parts of the bids will be submitted simultaneously in two separate sealed envelopes to the Railway Construction Department of the General Directorate of Infrastructure Investments by 2:30 PM on October 14. Bids received after this date will not be accepted. The technical part of the bids will be opened on the same day at 2:45 PM in the presence of the bidders' representatives and those wishing to attend.
The telecommunications and signaling works of the project will be carried out through a separate tender.
Financing
The railway project, which will start from Çayırova station on the Anatolian side and end at Çatalca station on the European side, will cross over the Yavuz Sultan Selim Bridge. A financing agreement of $6.75 billion was secured for the project with six international financial institutions.
