The winter snow road from Ust-Kut (Irkutsk region) to the settlement Tas-Yuryakh is opened in winter season and is used from 20-30 December to 20-25 March, the route length – 1050 km. The route length to SB OGCF – 990 km. The automobile road is a federal one and is maintained at the expenses of the federal budget and the budget of Sakha Republic (Yakutia).
The road goes through wooded area. There are no settlements, gasoline filling and service stations. Carriageway width vacillates between 4 m. and 6 m. The country along the route is hilly, the road grades on ascents and descents reach 30-35% (grade length – 2-3 km), and the slopes reach the grade of 10-15%.