Komotini–Alexandroupolis
In 2005 Stroytransgaz, in a consortium with Russian–Greek company Prometheus Gas S.A, concluded a contract with the Greek state gas company DEPA S.A. for construction of the Komotini–Alexandroupolis high-pressure gas pipeline.
The 53.4-kilometer Komotini–Alexandroupolis became the western branch of an already constructed gas pipeline running from the Greek–Turkish border to Alexandroupolis. It connected the Greek gas transportation system with its Turkish counterpart, thanks to which Greece obtained a new channel for delivery of natural gas.
As provided for in the contract, Stroytransgaz undertook construction-assembly and procurement work. In addition to the linear part of the pipeline, the company built site facilities, three line valve stations, and a pig receiver.
The route of the gas pipeline traverses irrigated lands and difficult-to-access mountain and ledge areas with numerous natural and man-made obstacles: river beds, forest areas, synclines, hills, and rocks, and highways and railroads.