As part of the creation of a new station complex with a passenger station in the 1950s, Lengiprotrans developed a project for the building of the Kirov Railway Administration in Petrozavodsk.
In the 1980s, Lengiprotrans designed the Urengoy - Nadym - Sovetsky highway. The road starts from the Urengoyskaya main compressor station (GCS) in the area of the city of Novy Urengoy and ends at the Komsomolskaya compressor station in the area of the Sovetsky village near the existing Ivdel - Ob'ye railway line of the Sverdlovsk railway. The motor road runs along the route of the Southern Corridor of the main gas pipelines and is intended for servicing compressor stations.
In 1950-1960s Lengiprotrans designed a bridge over the Abakan River as part of the construction of the Kyzyl - Mazhalyk (Aktovrak) - Abaza highway. The construction of the route made it possible to reduce the distance between the Aktovrak asbestos plant and the western regions of Tuva by more than 400 km.
The bridge was built on the Aktovrak - Abaza section on the territory of the Tyva Republic. The length of the bridge is 245 m.
In 1950-1960s Lengiprotrans designed the Kyzyl - Mazhalyk (Aktovrak) - Abaza highway. The road has republican significance and passes through the territory of Khakassia and Tuva.
The construction of the route made it possible to reduce the distance between the Aktovrak asbestos plant and the western regions of Tuva by more than 400 km.
In the 1990s, Lengiprotrans developed a project for the building of the Unified Dispatch Control Center (EDCU) of the Oktyabrskaya Railway in St. Petersburg. EDTSU is intended to accommodate dispatching personnel and a set of technical means associated with the operational management of transportation on the Oktyabrskaya railway.
The construction of the EDCU building became necessary to organize the receipt of operational and reliable information about the movement of trains, as well as to create modern working conditions for the dispatching personnel.
In the 1990s, Lengiprotrans developed a project for the electrification of the Volkhovstroy - Tikhvin - Koshta section in connection with the transfer of freight traffic to it. This was supposed to free the St. Petersburg - Moscow line for the development of high-speed passenger traffic.
In the 1990s, the electrification of railway tracks in the North-West of Russia was widely developed, in which Lengiprotrans took an active part. The work began with the design of the Volkhovstroy - Svir section of the Oktyabrskaya railway. This marked a new stage in the electrification of the route to Murmansk.
In the 1990s, the electrification of railway tracks in the North-West of Russia was widely developed, in which Lengiprotrans took an active part. As part of this work, the Idel - Belomorsk section was electrified using alternating current.
In the course of the work, two traction substations, a longitudinal contact network, a signaling system, and power supply were designed.
In the 1990s, the electrification of railway tracks in the North-West of Russia was widely developed, in which Lengiprotrans took an active part. At the final stage of the electrification of the Northern Direction, the Idel - Svir section was designed with an alternating current of 27.5 kV. This became the final section of the electrification of the St. Petersburg - Murmansk direction of the Oktyabrskaya railway.
Babaevo is an out-of-class railway station on the Vologda — St. Petersburg line of the Oktyabrskaya Railway. By the nature of the work, the station is a precinct one, and by its volume and complexity it is extracurricular. In 1990–2000, Lengiprotrans in several stages developed a project for the reconstruction of the station in view of an increase in transit freight traffic along the Volkhovstroy — Koshta line.
