Bridges and cables

Bridges & Cables

Another obstacle for navigation can comes from the bridge air clearance and the navigation quadrangle. The bridge air clearance is defined as being the vertical height of the quadrangle (defining the width of the navigation channel) that can be drawn under the bridge without touching the bridge beams.

The following table gives the navigation quadrangles of the bridges over the Mekong mainstream between the Green Triangle and the sea.

Bridges and Cables

Nr.	Km	Name of the bridge	Width (m)	Height (m)
			Navigation quadrangle
1	NA	Friendship Bridge nr.5 in Louangnamtha: Laos-Myanmar	60	12.22
2	2306.9	Friendship bridge nr.4 in Bokeo: Huay Xay – Chiang Khong	60	15.7
3	2173	Pak Beng (under construction)	60	17.14
4	1955	Tha Deua-Phakkone in Xayabouri	60	17.96
5	1550.7	Friendship bridge nr. 1: Vientiane - Nongkhai	60	10
6	1229	Friendship bridge nr. 3: Khammouane-Nakhon Phanom	60	10
7	1130	Friendship bridge nr. 2: Mukdahan Savannakhet	60	14.48
8	866.6	Friendship bridge Laos-Japan (Champassak-Pakxe)	60	11
9	740	Bridge between the left river bank and island of Khong	70	10
10	682	Stung Treng bridge over the Mekong	133.43	15
11	NA	Stung Treng bridge over the Sekong[1]	99.553	10
12	370.5	Kizuna bridge in Kompong Cham	120	15
13	360.7	Prek Tameak bridge	120	14
14	2.7	Chrui Changvar bridge[2]	135	10
15	13.4	Prek Phnov	95	10
16	32.5	Prek Kdam	120	10
17	NA	Monivong bridge[3]	50	5
18	NA	Prek Samroeun[4] or Takhmao bridge	60	6
19	NA	Koh Thom bridge over the Bassac River	45	8
20	292.4	Tsubasa or Neak Lueng bridge	180	37.5
21	125.3	My Thuan bridge	110	37.5
22	72.3	Rach Mieu (My Tho) bridge	270	37.5
23	162.6	Cao Lanh[5]	200	37.5
24	105	Can Tho bridge over the Bassac	200	39
25	151.8	Vam Cong bridge over the Bassac	200	37.5

1 This is not a mainstream bridge but very close to the junction between Mekong ad Sekong in Stung Treng
2 This bridge is over the Tonlé Sap. This is the second bridge at the same place since the first one was repaired after being dynamited during the Khmer Rouge period, by the Japanese, re-using the same biers and abutments.
3 The second Monivong bridge adjacent to the former one is over the Bassac River
4 Also the Prek Samroeun bridge is over the Bassac downstream the Monivong bridge.
5 Under construction