From the very foundation Lengiprotrans took an active part in the transport development of the Kazakh SSR. In 1954, a large-scale development of virgin and fallow lands began in the republic and a number of adjacent regions. The Council of Ministers of the USSR adopted a Resolution on the construction of railway lines in the region. The design of most of the facilities was entrusted to Lengiprotrans.
During this period, the institute developed a project to increase the capacity of the single-track railway Kostanay (now Kostanay) — Zolotaya Sopka, built in the 1910s. In the course of the work, new sidings were opened, the length of tracks at stations and sidings was increased, and additional tracks were installed.
Design and survey work and construction were carried out simultaneously at an accelerated pace.
