structural:summarization
Bridges

Construction of Myanmar–Laos Friendship Bridge started on 19 February 2013. The bridge will be 691.6 m (2,269 ft) long and have an 8.5 m (28 ft) wide two-lane motorway.

The Thai–Lao Friendship Bridge (Thai: สะพานมิตรภาพ ไทย-ลาว, RTGS: Saphan Mittraphap Thai-Lao) connects Nong Khai city with Vientiane in Laos. The 1,170 m-long (3,840 ft) bridge opened on 8 April 1994. It has two 3.5 m-wide (11 ft) lanes with a single railway line in the middle. On 20 March 2004, the Thai and Lao governments agreed to extend the railway to Tha Nalaeng in Laos. This extension has since been completed.

The Second Thai–Lao Friendship Bridge connects Mukdahan to Savannakhet. The two-lane, 12 m-wide (39 ft), 1,600 m-long (5,200 ft) bridge opened to the public on 9 January 2007.

The Third Thai–Lao Friendship Bridge opened for traffic on 11 November 2011, connecting Nakhon Phanom Province (Thailand) and Thakhek (Laos), as part of Asian Highway 3. The Chinese and Thai governments agreed to build the bridge and share the estimated US$33 million cost.

The Fourth Thai–Lao Friendship Bridge opened to traffic on 11 December 2013. It links Chiang Rai Province, Thailand with Ban Houayxay, Laos.

There is one bridge over the Mekong entirely within Laos. Unlike the Friendship Bridges, it is not a border crossing. It is at Pakse in Champasak Province. It is 1,380 m (4,528 ft) long, and was completed in 2000. 15°6′19.95″N 105°48′49.51″E / 15.1055417°N 105.8137528°E).

The Kizuna Bridge is in Cambodia, in the city of Kampong Cham, on the road linking Phnom Penh with the remote provinces of Ratanakiri and Mondolkiri, and Laos. The bridge opened for traffic on 11 December 2001.

The Prek Tamak Bridge, 40 km (25 mi) north of Phnom Penh opened in 2010.

Phnom Penh itself has no bridge under construction yet, although two new bridges have recently opened on the Tonle Sap, and the main bridge on the highway to Ho Chi Minh was duplicated in 2010.

Another new bridge was built at Neak Leung on the Phnom Penh to Ho Chi Minh Highway 1 with Japanese government assistance, and opened in 2015.

In Vietnam, since the year 2000 Mỹ Thuận Bridge crosses the first channel—the left, main branch of the Mekong, the Sông Tiền or Tiền Giang—near Vĩnh Long and since 2008 Rạch Miễu Bridge crosses it near Mỹ Tho, between the provinces of Tiền Giang and Bến Tre.

Cần Thơ Bridge crosses the second channel—the right, main distributary of the Mekong, the Bassac (Song Hau). Inaugurated in 2010, it is the longest main span cable-stayed bridge in Southeast Asia.