Employer: National Railway Infrastructure Company
Contractor: Infrastructurno Stroitelstvo – Geostroy Consortium
Project implementation period: 2019 – 2021
Infrastructurno Stroitelstvo – Geostroy Consortium completed the construction and assembly works under the project Rehabilitation of the Railway Track, Related Facilities, Catenary and Power Supply Systems on Koprivshtitsa - Stryama Railway Section from km 100+525 to km 106+337.
This is the first reconstruction of the longest railway tunnel on the Balkan Peninsula - Koznitsa Tunnel (5,812 m long), which has not been repaired for 50 years. In addition to the complete rehabilitation of the tunnel and the tunnel lining, the contract scope includes design and complete renewal of the railway track, related infrastructure facilities and systems.
