Storage dam
Chulabhorn Dam
เขื่อนจุฬาภรณ์
Chulabhorn Dam is a storage dam on the Phrom River in Khon San District, Chaiyaphum province. Its reservoir holds 165 million m³. It was completed in 1972 and is run by the Electricity Generating Authority of Thailand (EGAT).
Reservoir storage today
87.4% of capacity at normal storage level
- Water in the reservoir
- 143 million m³
- Usable water
- 106 million m³ (83.6% of usable capacity)
- Inflow
- 0.1 million m³ a day
- Released
- 0 million m³ a day
As of 14 Nov 2026 Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes
Storage this year and last
Up 3.1 million m³ over the last 7 days
25.5 million m³ less than on the same day last year
- 2026
- 2025
- Normal storage 164 million m³
- Upper and lower rule curves
Daily storage from the National Hydroinformatics Data Center (ThaiWater). The rule curves are the range the dam is meant to be kept within through the year.
Try the reservoir
Change the inflow, the release and the rain over the dam's catchment, and see what the reservoir would do over the next 90 days, starting from today's figures.
The reservoir would rise by 0.1 million m³ a day
- Goes above the upper rule curve in 66 days (19 Jan 2027)
In 90 days it would hold about 155 million m³ (94.7% of capacity)
- Actual storage
- Projected
- Normal storage
- Upper and lower rule curves
- Dead storage
Today's storage, plus the inflow and the rain that runs in, less the release, a day at a time; evaporation and seepage are left out. It is arithmetic on the figures you set, not a forecast.
Key facts
- River
- Phrom River
- Location
- Khon San District, Chaiyaphum province
- Coordinates
- 16.5363, 101.6500
- Reservoir capacity
- 165 million m³
- Maximum capacity
- 188 million m³
- Dead storage
- 37.2 million m³
- Dam height
- 70 m
- Installed power capacity
- 40 MW
- Completed or opened
- 1972
- Operator
- Electricity Generating Authority of Thailand (EGAT)
Maximum capacity and dead storage from the Royal Irrigation Department
Frequently asked questions
- Where is Chulabhorn Dam?
- Chulabhorn Dam is in Khon San District, Chaiyaphum province.
- What is the water level of Chulabhorn Dam today?
- Chulabhorn Dam is 87.4% full, holding 143 million m³, as of 14 Nov 2026.
- How much water can Chulabhorn Dam hold?
- The reservoir of Chulabhorn Dam holds 165 million m³.
- When was Chulabhorn Dam built?
- Chulabhorn Dam was completed and opened in 1972.
- Who runs Chulabhorn Dam?
- Chulabhorn Dam is run by the Electricity Generating Authority of Thailand (EGAT).
- What is the Chulabhorn Dam called in Thai?
- In Thai the Chulabhorn Dam is เขื่อนจุฬาภรณ์.