The highway is estimated to be about 85 km long, of which some 49 km running through Hoa Binh province and the remaining through Van Ho and Moc Chau districts of Son La province.
The road system will link two tourism hubs of the northwestern region. It is also expected to ease congestion on National Highway No.6 through Hoa Binh and Son La, while contributing to the overall socio-economic development of the two provinces.
Built at a total cost of over 22.29 trillion VND (952.05 million USD), the road will allow vehicles to travel at 60-80 km per hour.
The northwestern region consists of 12 mountainous and midland localities, including Yen Bai, Lao Cai, Dien Bien, Lai Chau, Son La, Ha Giang, and Hoa Binh.
It is the most disadvantaged area compared with other regions and has the highest rate of poor households. The biggest challenges for the region includes poor transport infrastructure and a lack of basic foundations for the development of railway and air travel. Given the current situation, the development of road transport infrastructure was considered the most suitable option.