The Khwae Yai River ( th, แม่น้ำแควใหญ่, , ), also known as the Si Sawat ( ), is a river in western

Thailand Thailand ( ), historically known as Siam () and officially the Kingdom of Thailand, is a country in Southeast Asia, located at the centre of the Indochinese Peninsula, spanning , with a population of almost 70 million. The country is b ...

. It has its source in the

Tenasserim Hills The Tenasserim Hills or Tenasserim Range ( my, တနင်္သာရီ တောင်တန်း, ; th, ทิวเขาตะนาวศรี, , ; ms, Banjaran Tanah Seri/Banjaran Tenang Sari) is the geographical name of a r ...

and flows for about through Sangkhla Buri, Si Sawat, and

Mueang Mueang ( th, เมือง ''mɯ̄ang'', ), Muang ( lo, ເມືອງ ''mɯ́ang'', ; Tai Nuea: ᥛᥫᥒᥰ ''muang''), Mong ( shn, ''mə́ŋ'', ), Meng () or Mường (Vietnamese), were pre-modern semi-independent city-states or principal ...

Districts of Kanchanaburi Province, where it merges with the Khwae Noi to form the

Mae Klong River The Mae Klong (, , ), sometimes spelled Mae Khlong or Meklong, is a river in western Thailand. The river begins at the confluence of the Khwae Noi (Khwae Sai Yok) and the Khwae Yai River (Khwae Si Sawat) in Kanchanaburi, it passes Ratchaburi ...

at Pak Phraek.

History

This river used to be the upper section (before the confluence with the

Khwae Noi River The River Kwai (), more correctly Khwae Noi ( th, แควน้อย, , 'small tributary') or Khwae Sai Yok (, ), is a river in western Thailand. It rises to the east of the Salween in the north-south spine of the Bilauktaung range near, bu ...

) of the

, however, in the 1960s, this river was named the Khwae Yai River, meaning 'Big River.' In 1980, the Srinagarind Dam (Thai: เขื่อนศรีนครินทร์; rtgs: Khuean Sinakharin) on the Khwae Yai was completed in

Si Sawat District Si Sawat ( th, ศรีสวัสดิ์, ) is a district ('' amphoe'') in Kanchanaburi province, western Thailand. Geography Neighboring districts are (from the north clockwise) Ban Rai of Uthai Thani province, Dan Chang of Suphanburi ...

of Kanchanaburi Province. It is an embankment dam for river regulation and hydroelectric power generation.

Bridge

The famous bridge of the

Burma Railway The Burma Railway, also known as the Siam–Burma Railway, Thai–Burma Railway and similar names, or as the Death Railway, is a railway between Ban Pong, Thailand and Thanbyuzayat, Burma (now called Myanmar). It was built from 1940 to 1943 ...

crosses the river at Tha Makham Subdistrict of the Mueang District. However, this is not the same bridge as depicted in ''

The Bridge over the River Kwai ''The Bridge over the River Kwai'' (french: Le Pont de la rivière Kwaï) is a novel by the French novelist Pierre Boulle, published in French in 1952 and English translation by Xan Fielding in 1954. The story is fictional but uses the construct ...

'' by

Pierre Boulle Pierre François Marie Louis Boulle (20 February 1912 – 30 January 1994) was a French novelist best known for two works, '' The Bridge over the River Kwai'' (1952) and ''Planet of the Apes'' (1963), that were both made into award-winning films. ...

and in its film adaptation. A bridge was built of wood approximately upriver from the current bridge, during the construction of the iron and concrete bridge (which runs in a NNE-SSW direction) and also rebuilt in 1945 when the iron bridge was bombed. No remnants of the wooden bridge remain. That wooden bridge was also not the bridge depicted in the film as the river was not called the Kwai Yai at that time. A wooden trestle bridge was built over the Kwai Noi many miles upstream in the jungle and it would more closely resemble the bridge in the film. However, the film is really a fictional depiction of the events with many inaccuracies and neither bridge can really be said to be that depicted in the film. Up until the 1960s, the river was considered part of the Mae Klong itself, but this part of the Mae Klong was then renamed Khwae Yai to bring geographical fact more in line with the fictional association with the name River Kwai. The main cemetery of prisoners who died during the railway's construction is nearby and is called the

Kanchanaburi War Cemetery The Kanchanaburi War Cemetery (known locally as the Don-Rak War Cemetery) is the main prisoner of war (POW) cemetery for victims of Japanese imprisonment while building the Burma Railway. It is on the main road, Saeng Chuto Road, through the town ...

References

External links

* Rivers of Thailand Geography of Kanchanaburi province {{Thailand-river-stub