Thai-Lao Friendship Bridge 3
Nakhon Phanom → Thakhek → Vietnam

🔄 Updated 21 Jun 2026

The 3rd Thai-Lao Friendship Bridge opened on 11 November 2011 (an easy date to remember — 11/11/11), linking the Thai side at Ban Hom in Tambon At Samat, Muang Nakhon Phanom district, with the Lao side at Ban Vern Tai near Thakhek in Khammouane Province. The bridge is about 1,423 metres long and 13 metres wide, with two lanes, and sits roughly 8 kilometres from downtown Nakhon Phanom — drive north along Route 212 to reach it.

To be honest, the bridge isn't an attraction worth setting aside half a day for. Most people stop to take a few photos and move on. What makes this bridge more interesting than the average one is that it's an overland route that actually continues all the way to Vietnam. If you like cross-border travel, this is a good starting point.

How to Cross and What Documents You Need

The Nakhon Phanom border checkpoint on the Thai side is open daily, roughly 06:00–22:00. During festival periods it's worth double-checking the hours, as they can change. If you're crossing to visit Thakhek or go further, you'll go through immigration on both sides as usual.

• Use a passport — general tourists, including Thai nationals, can enter Laos on a passport and stay up to 30 days, with access to all of Laos, not just Khammouane.
• Use a Border Pass — only for people whose registered residence is in Nakhon Phanom province; it's valid only for Khammouane and limited to 3 days / 2 nights, which suits a quick out-and-back trip.
• Foreign nationals — many nationalities can get a visa on arrival at the checkpoint. Bring a passport photo and the fee in US dollars; having it ready is faster than sorting it out on the spot.

Where the Bridge Actually Looks Good in Photos

Photography is hard at the checkpoint itself, since it's a controlled area. The spots with a nicer view of the bridge are further out, along the Mekong.

What to Do in Thakhek Once You Cross

Thakhek is a small, quiet town with an old-world feel, with French-colonial buildings along the Mekong that make for an easy half-day stroll. But the real draw of Khammouane is the limestone landscape outside town.

• Tham Pha / Tham Nang Aen — a cluster of limestone caves outside Thakhek, the highlight of Khammouane and a popular trip.
• The Loop — a 3–4 day motorbike circuit around the Khammouane mountains, well known among backpackers, passing Kong Lor Cave and its multi-kilometre river cave.
• Riverside Thakhek town — the central square, old buildings, and cafes, good for a relaxed sit-down if you're short on time.

The Route Onward to Vietnam Through Laos

This is the reason many people choose to cross at Nakhon Phanom. From Thakhek, Laos Route 12 runs straight east, threading through the Annamite Range to the Na Phao checkpoint on the Lao side, which connects with the Cha Lo checkpoint in Quang Binh Province, Vietnam — and from there down to the coastal town of Dong Hoi. The distance from Thakhek to Quang Binh is about 320 kilometres, roughly a 6-hour drive including stops.

There are buses running Thakhek–Vietnam, but they don't go every day and the schedule changes often, so you'll need to check at the Thakhek bus station yourself. If you're tight on timing, ask ahead or build in a buffer day — don't plan this to land on the day of your flight home.

How to Get to the Bridge from Town

• Private car / rental — from downtown Nakhon Phanom, drive north on Route 212 for about 8 km; it's well signposted and takes around 15 minutes.
• Rental motorbike — there are rental shops in town, handy if you just want to take photos and then continue on to Tha Uthen.
• Cross-border bus — if you intend to cross to Thakhek, hop on a scheduled bus right at the checkpoint and skip the vehicle paperwork.