The Baikal-Amur Mainline (BAM) is the largest railway running through the territory of Eastern Siberia and the Far East in the direction of Taishet - Sovetskaya Gavan.
In 1960-1970s "Lengiprotrans" developed a project of the BAM Chara - Tynda section with a length of about 670 km. The route was laid in the region of the Olekma-Vitim mountainous country through rugged ridges dissected by river valleys. On the site, the institute designed 798 artificial structures, including 25 large railway bridges and 1 overpass.
A large railway bridge across the Ikabiekan River was built at 1173 km of the BAM. The bridge is located in the area of permafrost with an estimated seismicity of 9 points, which complicated the overall layout of the bridge scheme and the design of supports.
The length of the bridge is 280.9 m. The height of the intermediate supports is up to 28 m. The structure covers the entire gorge.
