West Baray — Angkor Hydraulic Reservoir
បារាយណ៍ខាងលិច · Baray Teuk Thla · Western Baray Angkor
Angkor (Baphuon style middle Angkor)·Khmer Hindu (Suryavarman I court)·🇰🇭 Siem Reap Province, Angkor Archaeological Park, west of Angkor Thom, Cambodia
About
About West Baray — Angkor Hydraulic Reservoir
1050 CE under Udayadityavarman II and Suryavarman I, west of Angkor Thom and still water-retaining. The baray's 8-m high earthen dikes (carved from laterite and sand with laterite revetment) divert Siem Reap River monsoon water via a 12-km canal with distribution spillways feeding West Mebon island temple (Khmer Hindu Vishnu shrine) and the moats of Angkor Thom. French EFEO 1930s drainage revealed original laterite gates and bronze Vishnu torso (now Phnom Penh museum).
Modern rehabilitation 2008 restores gravity irrigation for 13,000 ha Siem Reap paddy, demonstrating Khmer hydraulic empire sustainability.
Why it mattersLargest surviving Khmer baray illustrating hydraulic empire model and cosmic reservoir temple island.
Open questions
Mysteries & theories
Mysteries
- 01Water regulation without pumps in monsoon pulse
- 02Labour levy scale
Theories
- 01Rice surplus hydraulic state
- 02Cosmic ocean West Mebon ritual
Theories are interpretations, not findings. The seal above tells you how much scholarly weight the place carries.
History
How it came to be
- Built
- c.1050 CE (Udayadityavarman II)
- Period
- Angkor (Baphuon style middle Angkor)
- Culture
- Khmer Hindu (Suryavarman I court)
- Builders
- Khmer royal hydraulic corps and corvée labour
- Purpose
- Monsoon storage, moat and paddy irrigation, cosmic ocean for West Mebon
- Abandoned
- Partial silt after 1431 Ayutthaya sack; restored 2008
- Rediscovered
- 1860 Mouhot description; 1935 Goloubev EFEO baray survey
- Excavation
- Excavation ongoing
1050 CE
Udayadityavarman II dike construction
1100 CE
West Mebon island temple bronze Vishnu casting
1860
Mouhot sketches West Baray as lake
2008
JICA baray rehabilitation re-waters
On the ground
Structures & features
13.4330° N · 103.8000° E · 20 m · 2 mapped features
West Mebon Island Temple
island templeSandstone island temple centre of baray with bronze Vishnu base
13.4346° N · 103.8001° EWestern Dike Sluice Gate
sluice gateLaterite monolith sluice 3×2 m controlling outflow to Siem Reap canal
13.4320° N · 103.7920° E