River Kwai Bridge — History
The bridge is one of the most recognisable symbols of the Thailand–Burma Death Railway. Built during World War II under harsh conditions, it carries a sobering history of prisoners of war and forced labourers.
Origins of the Death Railway
In 1942 Japan began building a 415 km railway linking Thailand and Burma to supply its southern front. The route crossed the Khwae Yai, and a bridge was needed at Kanchanaburi.
Forced labour & sacrifice
The line was built by Allied prisoners of war and thousands of civilian forced labourers from across Asia. Disease, malnutrition and dangerous work led to enormous loss of life — the origin of the name “Death Railway”.
War, destruction & reconstruction
Sections of the bridge were damaged in 1945 Allied air raids. After the war the bridge was repaired using original and replacement spans, and it remains in use by trains today.
Memory & the film
The 1957 film The Bridge on the River Kwai spread the bridge’s name worldwide, though it was filmed elsewhere. Today the bridge, the cemeteries and museums commemorate those who suffered.
Visiting the historical sites
Pair your visit with the Kanchanaburi War Cemetery, the JEATH War Museum and the Thailand–Burma Railway Centre to understand the full story. See the visiting guide for practical tips.
Frequently asked questions
Why is it called the Death Railway?
Because of the enormous loss of life among prisoners of war and forced labourers who built the line under brutal conditions.
Was the bridge in the 1957 film real?
The film made the name famous, but it was shot elsewhere; the real bridge is at Kanchanaburi.
Who built the bridge?
It was built during WWII by Allied POWs and Asian civilian forced labourers under Japanese military direction.
Is the original bridge still there?
The current bridge uses original and replacement spans repaired after WWII damage; it still carries trains.
Where can I learn more on site?
The Kanchanaburi War Cemetery, JEATH War Museum and Thailand–Burma Railway Centre all tell the story.