Subsection №1 from km 366+000 to km 366+720, including serving tunnel road at the Northern portal of Zheleznitsa tunnel

Contracting Authority
Road Infrastructure Agency

The section is part of “Struma” Motorway, starting at km 366+000 and ending at km 366+720 of the motorway. The site is located in Blagoevgrad district.

Period of implementation
18.03.2019 – 06.11.2020
Nature of works

Design and construction of Subsection №1 of “Struma” motorway Lot 3.1 tunnel “Zheleznitsa”, from km 366+000 to km 366+720, including service tunnel road at the northern gate of tunnel “Zheleznitsa”. The total length of the section is 720 m and the gauge is 29 m. The project includes design and construction of bridge structures over Struma river, road I-1 (Е-79) line Sofia – Kulata, fourth-class road BLG 1071, as well as the design and construction of a service tunnel road at the northern tunnel portal.

The design and construction of Lot 3 of “Struma” motorway is the main project under Priority Axis 2 of Operational Program “Transport and Transport Infrastructure” 2014-2020, co-financed by the EU Cohesion Fund.

Project No. BG16M1OP001-2.001-0001 “Struma Motorway” Lot 3 – Lot 3.1, Lot 3.3. and tunnel “Zheleznitsa”.

“Design and construction of the Struma motorway Lot 3.1 “Zheleznitsa” tunnel with three lots: Lot 1: Subsection №1 from km 366+000 to km 366+720, including a tunnel service road at the northern portal of  “Zheleznitsa” tunnel.


Prime contractor

Partners: GBS Infrastructural Construction AD, Glavbolgarstroy AD, Glavbolgarstroy International EAD

Consultant / Engineer under the contract

TES Consult

Sources of funding

Cohesion Fund of the EU
National co-financing

Managing authority

Coordination of Programs and Projects Directorate Ministry of Transport, Information Technology and Communications

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