Storage dam
Ubol Ratana Dam
เขื่อนอุบลรัตน์
Ubol Ratana Dam is a storage dam on the Phong River in Ubolratana District, Khon Kaen province. Its reservoir holds 2,263 million m³. It was completed in 1966 and is run by the Electricity Generating Authority of Thailand (EGAT). The first multipurpose dam in northeastern Thailand.
Reservoir storage today
49.3% of capacity at normal storage level
- Water in the reservoir
- 1,198 million m³
- Inflow
- 31.9 million m³ a day
- Released
- 1 million m³ a day
As of 29 Sep 2026 Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Key facts
- River
- Phong River
- Location
- Ubolratana District, Khon Kaen province
- Coordinates
- 16.7742, 102.6192
- Reservoir capacity
- 2,263 million m³
- Dam height
- 32 m
- Dam type
- Clay-core rockfill dam
- Installed power capacity
- 25 MW
- Completed or opened
- 1966
- Operator
- Electricity Generating Authority of Thailand (EGAT)
Frequently asked questions
- Where is Ubol Ratana Dam?
- Ubol Ratana Dam is in Ubolratana District, Khon Kaen province.
- What is the water level of Ubol Ratana Dam today?
- Ubol Ratana Dam is 49.3% full, holding 1,198 million m³, as of 29 Sep 2026.
- How much water can Ubol Ratana Dam hold?
- The reservoir of Ubol Ratana Dam holds 2,263 million m³.
- When was Ubol Ratana Dam built?
- Ubol Ratana Dam was completed and opened in 1966.
- Who runs Ubol Ratana Dam?
- Ubol Ratana Dam is run by the Electricity Generating Authority of Thailand (EGAT).
- What is the Ubol Ratana Dam called in Thai?
- In Thai the Ubol Ratana Dam is เขื่อนอุบลรัตน์.