The northern mountainous province of Son La officially held a groundbreaking ceremony for the Hoa Binh - Moc Chau Expressway Project, the section running through the province, on May 18.

The project is scheduled for construction over three years, from 2025 to 2028, with a total investment of VND4.445 trillion (nearly $171.5 million) sourced from both the central and provincial budgets.

Spanning 32.3 km, the expressway section will pass through Van Ho District and Moc Chau Town.within Son La province as part of the larger CT3 expressway, which connects Hanoi and the mountainous provinces of Hoa Binh, Son La, and Dien Bien.

The section holds strategic importance—once completed, it will ease congestion on National Highway 6 and serve as a key foundation for the eventual development of the Hanoi - Hoa Binh - Son La - Dien Bien expressway, aligning with the approved national planning framework.