
The Thai–Lao Friendship Bridge (Thai: สะพาน มิตรภาพ ไทย-ลาว Saphan Mittaphap Thai-lao) connects Nong Khai city with Vientiane in Laos. The 1,170-metre (3,840 ft)-long bridge has two 3.5-metre (11 ft)-wide lanes with an unfinished single railway line in the middle. On March 20, 2004, the Thai and Lao governments agreed to extend the railway to Tha Nalaeng in Laos.
The Second Thai–Lao Friendship Bridge connects Mukdahan to Savannakhet. The two-lane, 12-metre (39 ft)-wide, 1,600-metre (5,200 ft)-long bridge opened to the general public on January 9, 2007.
There are only three bridges, located in Champasak province, in Laos. Unlike the Friendship bridges, this bridge is not a border crossing. It is 1,380 metres (4,528 ft) long, and was completed in 2000 (Pakxe bridge 15°6′19.95″N 105°48′49.51″E / 15.1055417°N 105.8137528°E).
A new bridge over the Mekong is to be completed by 2011, connecting the border towns of Chiang Khong (Thailand) and Ban Houayxay (Laos), as part of Asian Highway 3. The Chinese and Thai governments agreed to build the bridge and share the estimated $33USD million dollar cost of the project.
Cambodia has one two-lane bridge, the Kizuna bridge in the city of Kompong Cham, on the road linking Phnom Penh with the remote provinces of Ratanakiri and Mondolkiri, and further away Laos.
The Prek Tamak Bridge, 40 km north of Phnom Penh will provide another link in 2011.
Phnom Penh itself has no bridge under construction yet.
In Vietnam, since the year 2000 My Thuan Bridge (Mỹ Thuận), crosses the first channel a dozen km ahead of Vinh Long (Vĩnh Long) and since 2008 Rach Mieu Bridge (Rạch Miễu) crosses it a dozen km ahead of de My Tho (Mỹ Tho), between the provinces de Tien Giang (Tiền Giang) and Ben Tre (Bến Tre).
Can Tho Bridge (Cần Thơ), should cross the second channel in 2010; this was a delayed because of a heavy accident in 2007.
Recently there are two larg bridges are built in Yunnan Province,China. They are Mangjiedu Bridge in Xiaowan Hydropower Station and Xiyi Lancang-Mekong River Grand Bridge in Lincang City.