At a cost of over VND2.5 trillion (US$112.5 million), the project will build a four-lane provincial road crossing Sa Pa and Bat Xat district and Lao Cai city and upgrade existing highway 4D.
The work on overall 29.2 kilometres of road is expected to finish within the first quarter of 2019.
At the ceremony, Deputy Prime Minister Phuc said he supports the project’s build-operate-transfer (BOT) model and coordination among different constructors.
Recently, the road to Sa Pa has become overloaded with the large volume of tourist arrivals. During the lunar New Year holiday alone, more than 35,000 people visited the town.