The purpose of the measures is to protect the railroad infrastructure from damage and scouring when the water rises sharply.
Last winter in the Amur Region and Khabarovsk Territory, due to powerful cyclones, much more precipitation fell in the Amur Region and Khabarovsk Territory than in previous years. According to hydrologists' forecasts, active snowmelt can cause significant water rise in streams and rivers.
Taking into account the hydrological situation, the machine operators profiled and cleared the channels of bridges and culverts, and excavated trenches and ditches for water drainage. Construction sites are cleared of snow and ice, machinery and construction materials are moved to places inaccessible to melt water.
When designing the facilities of the second stage of the BAM, engineers envisioned an increase in the water-carrying capacity of artificial structures. On the new double-track sections, larger diameter culverts are being installed, and bridges are being built to accommodate the maximum possible water rise.
Snow melting and ice drifting at the northernmost sites of BAM last until the end of May. All this time construction workers together with railroad workers conduct weekly inspection of all artificial structures under construction and daily monitoring of water levels in rivers and streams.