Storage dam
Mae Ngat Somboon Chon Dam
เขื่อนแม่งัดสมบูรณ์ชล
Mae Ngat Somboon Chon Dam is a storage dam on the Mae Ngat River in Mae Taeng District, Chiang Mai province. Its reservoir holds 265 million m³. It was completed in 1986.
Reservoir storage today
100.4% of capacity at normal storage level
- Water in the reservoir
- 266 million m³
- Usable water
- 254 million m³ (100.2% of usable capacity)
- Inflow
- 0.8 million m³ a day
- Released
- 0.1 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 5.2 million m³ over the last 7 days
9.1 million m³ less than on the same day last year
- 2026
- 2025
- Normal storage 265 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 0.7 million m³ a day
- Reaches its largest capacity: water would go over the spillway in 87 days (9 Feb 2027)
In 90 days it would hold about 323 million m³ (121.9% 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
- Mae Ngat River
- Location
- Mae Taeng District, Chiang Mai province
- Coordinates
- 19.1614, 99.0398
- Reservoir capacity
- 265 million m³
- Maximum capacity
- 323 million m³
- Dead storage
- 12 million m³
- Dam height
- 59 m
- Dam type
- Embankment dam
- Installed power capacity
- 9 MW
- Completed or opened
- 1986
Maximum capacity and dead storage from the Royal Irrigation Department
Frequently asked questions
- Where is Mae Ngat Somboon Chon Dam?
- Mae Ngat Somboon Chon Dam is in Mae Taeng District, Chiang Mai province.
- What is the water level of Mae Ngat Somboon Chon Dam today?
- Mae Ngat Somboon Chon Dam is 100.4% full, holding 266 million m³, as of 14 Nov 2026.
- How much water can Mae Ngat Somboon Chon Dam hold?
- The reservoir of Mae Ngat Somboon Chon Dam holds 265 million m³.
- When was Mae Ngat Somboon Chon Dam built?
- Mae Ngat Somboon Chon Dam was completed and opened in 1986.
- What is the Mae Ngat Somboon Chon Dam called in Thai?
- In Thai the Mae Ngat Somboon Chon Dam is เขื่อนแม่งัดสมบูรณ์ชล.