Construction of the 176.3km expressway is expected to cost US$3.8 billion. It will enable vehicles to travel at 80km per hour and will cut the travel time between Boten and Huayxai to just one and a half hours.
The expressway runs for a distance of 440km and comprises four sections. The first stage between Vientiane and Vangvieng district in Vientiane province has been built and is in use.
Section 2 will run between Vangvieng and Luang Prabang province, section 3 will link Luang Prabang and Oudomxay provinces, and section 4 will run from Oudomxay to the Chinese border.
Surveys of sections 2, 3 and 4 have been completed, according to the Laos-China Joint Expressway Development Co., Ltd.