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In the 1980s, Lengiprotrans developed a project for the Obskaya - Bovanenkovo ​​line, the northernmost railway in the world. The road was intended for the development of the Bovanenkovskoye and Kharasaveyskoye gas fields on the Yamal Peninsula. In the early years, construction proceeded at an intensive pace, but with the onset of the economic crisis of the late 1980s, it significantly decreased. By the early 2000s, the line was laid to the Khralov junction (km 267), named in memory of the chief engineer of the Lengiprotrans Institute A.Ya. Chralov.

For the first time PJSC Lengiprotrans began to consider the development of railway approaches to the port of Ust-Luga in 1992, when he took part in the development of the General Scheme for the development of seaports on the shore of the Gulf of Finland in the Baltic Sea.

The impetus to large-scale construction was the active development of the port for the planned increase in cargo turnover to 180 million tons, of which 118 million tons will have to be delivered by rail.