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Major bridges

This table presents a non-exhaustive list of the road and railway bridges with spans greater than 100 metres (328 ft) or total lengths longer than 1,000 metres (3,281 ft).

	Name	Lao	Span	Length	Type	Carries Crosses	Opened	Location	Province	Ref.
1	Third Thai–Lao Friendship Bridge	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ 3	180 m (590 ft) (x3)	1,423 m (4,669 ft)	Box girder Prestressed concrete 120+3x180+120	Asian Highway 15 Mekong	2011	Thakhek–Nakhon Phanom 17°29′07.9″N 104°43′52.6″E / 17.485528°N 104.731278°E / 17.485528; 104.731278	Khammouane Thailand	^{[S 1]} ^[1]
2	Fifth Thai–Lao Friendship Bridge under construction	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ 5	150 m (490 ft) (x3)	1,350 m (4,430 ft)	Extradosed Concrete box girder deck, 4 concrete pylons	Mekong	2024	Pakxan–Bueng Kan 18°24′23.9″N 103°34′07.0″E / 18.406639°N 103.568611°E / 18.406639; 103.568611	Bolikhamsai Thailand	^[2]
3	Ban Ladhan Railway Bridge		144 m (472 ft)	1,652 m (5,420 ft)	Box girder Prestressed concrete 80+144+80	Vientiane–Boten railway Mekong	2021	Lat Han 20°05′15.4″N 102°07′32.1″E / 20.087611°N 102.125583°E / 20.087611; 102.125583 (Ban Ladhan Railway Bridge)	Oudomxay Luang Prabang	^[3]
4	Pakse Bridge [Wikidata]	ຂົວ ປາກເຊ	143 m (469 ft)	1,380 m (4,530 ft)	Extradosed Concrete box girder deck, concrete pylons 102x9+123+143+91	National Road 16 Mekong	2000	Pakse–Phonthong District 15°06′03.0″N 105°48′43.9″E / 15.100833°N 105.812194°E / 15.100833; 105.812194 (Pakse Bridge)	Champasak	^{[S 2]} ^[4] ^[5] ^[6]
5	Second Myanmar–Lao Friendship Bridge [ja]	ຂົວມິດຕະພາບ ລາວ-ມຽນມາ	120 m (390 ft) (x3)	691 m (2,267 ft)	Truss Steel	Mekong	2015	Xieng Kok–Kenglat 20°52′15.0″N 100°32′31.1″E / 20.870833°N 100.541972°E / 20.870833; 100.541972	Luang Namtha Myanmar	^[7] ^[8]
6	Pakbeng Bridge	ຂົວ ປາກແບ່ງ	120 m (390 ft)	379 m (1,243 ft)	Box girder Prestressed concrete 66+120+66	National Road 2W Mekong	2015	Pakbeng 19°50′37.0″N 101°03′57.4″E / 19.843611°N 101.065944°E / 19.843611; 101.065944 (Pakbeng Bridge)	Oudomxay Sainyabuli	^[9] ^[10]
7	Second Thai–Lao Friendship Bridge	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທີສອງ	110 m (360 ft) (x4)	2,050 m (6,730 ft)	Box girder Concrete box girder deck, concrete pylons 2x110+5x80+2x110	Mekong	2006	Savannakhet–Mukdahan 16°36′01.1″N 104°44′33.0″E / 16.600306°N 104.742500°E / 16.600306; 104.742500	Savannakhet Thailand	^{[S 3]} ^[11] ^[12]
8	Fourth Thai–Lao Friendship Bridge	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ 4	110 m (360 ft) (x3)	630 m (2,070 ft)	Box girder Prestressed concrete 75+110x3+75	Asian Highway 3 Mekong	2013	Houayxay–Chiang Khong District 20°12′50.1″N 100°27′14.1″E / 20.213917°N 100.453917°E / 20.213917; 100.453917	Bokeo Thailand	^{[S 4]} ^[13] ^[14]
9	Sekong Bridge (Laos)		110 m (360 ft)	300 m (980 ft)	Extradosed Concrete box girder deck, concrete pylons 80+110+65	National Road 16B Kong River	2018	Sekong 15°20′27.4″N 106°43′57.5″E / 15.340944°N 106.732639°E / 15.340944; 106.732639 (Sekong Bridge (Laos))	Sekong	^[15] ^[16] ^[17]
10	First Thai–Lao Friendship Bridge	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ	105 m (344 ft) (x5)	1,174 m (3,852 ft)	Box girder Prestressed concrete 70+105x5+70	Asian Highway 12 Mekong	1994	Vientiane–Nong Khai 17°52′48.8″N 102°42′54.2″E / 17.880222°N 102.715056°E / 17.880222; 102.715056	Vientiane Prefecture Thailand	^{[S 5]} ^[18] ^[19]
11	Luang Prabang Railway Bridge		104 m (341 ft) (x4)	1,459 m (4,787 ft)	Box girder Prestressed concrete 60+104x4+60	Vientiane–Boten railway Mekong	2021	Luang Prabang 19°56′01.0″N 102°12′21.6″E / 19.933611°N 102.206000°E / 19.933611; 102.206000 (Luang Prabang Railway Bridge)	Luang Prabang	^[20]
12	Sixth Thai–Lao Friendship Bridge [th] project	ຂົວມິດຕະພາບ ລາວ-ໄທ ແຫ່ງທຳອິດ 6		1,020 m (3,350 ft)	Arch Steel tied-arch	Mekong	2026	Lakhonepheng District–Na Tan District 15°55′17.7″N 105°20′36.6″E / 15.921583°N 105.343500°E / 15.921583; 105.343500	Salavan Thailand	^[21]
13	Pakkhone-Thadeua Bridge	ຂົວນ້ຳຂອງ ທ່າເດື່ອ-ປາກຄອນ		620 m (2,030 ft)	Box girder Prestressed concrete	National Road 4 Mekong	2013	Pang Khom–Tha Deua 19°25′33.7″N 101°50′51.8″E / 19.426028°N 101.847722°E / 19.426028; 101.847722 (Pakkhone-Thadeua Bridge)	Sainyabuli Luang Prabang	^[22]
14	Paklay Bridge	ຂົວນ້ຳຂອງ ນາສັກ-ໂຄກເຂົ້າດໍ		365 m (1,198 ft)	Truss Steel	Mekong	2017	Pak Lay 18°10′33.3″N 101°23′35.4″E / 18.175917°N 101.393167°E / 18.175917; 101.393167 (Paklay Bridge)	Sainyabuli Vientiane Province	^[23]
15	Cable Bridge (Dong, Laos)				Suspension Steel pylons	National Road 909 Sepon River	1975	Dong 16°37′32.4″N 106°25′07.0″E / 16.625667°N 106.418611°E / 16.625667; 106.418611 (Cable Bridge (Dong, Laos))	Savannakhet	^[24]