Baikal–Amur Mainline
Ust-Kut is spread along the Baikal–Amur Mainline with multiple stations, including the smaller Ust-Kut station and the actual main station Lena near the river port in Osetrovo. At the small settlement of Yakurim a few kilometers further, the railway crosses the Lena via a bridge, the last bridge across the river for its entire length.