Fourth Thai–Lao Friendship Bridge

The Fourth Thai-Lao Friendship Bridge stretches 480 meters across the Mekong River, connecting the cities of Chiang Khong and Hūaisāi with its concrete structure.

The bridge construction involved collaboration between Thailand, Laos, and China, with a total investment of 1,900 million baht before its inauguration in December 2013.

Princess Maha Chakri Sirindhorn presided over the formal inauguration ceremony, marking a milestone in the relationship between Thailand and Laos.

The bridge accommodates different traffic patterns, with vehicles switching from left-side driving in Thailand to right-side driving in Laos at designated transition points.

The structure represents the final completed section of Asian Highway 3, enhancing transportation networks throughout the Greater Mekong Subregion.

Location: Ban Houayxay

Inception: December 11, 2013

Official opening: December 11, 2013

Length: 480 m

Part of: AH3, Laos–Thailand border

GPS coordinates: 20.28333,100.41667

Latest update: November 28, 2025 14:29