Rivers of Thailand

Storage dam

Huai Luang Dam

เขื่อนห้วยหลวง

Huai Luang Dam is a storage dam in Kut Chap District, Udon Thani province. Its reservoir holds 136 million m³. It is run by the Royal Irrigation Department.

Reservoir storage today

53.5% of capacity at normal storage level

Water in the reservoir
72.6 million m³
Usable water
66 million m³ (51.2% of usable capacity)
Inflow
0 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

Down 1.4 million m³ over the last 7 days

61.9 million m³ less than on the same day last year

72.6 million m³JanFebMarAprMayJunJulAugSeptOctNovDec
  • 2026
  • 2025
  • Normal storage 136 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 fall by 0.1 million m³ a day

Over the next 90 days the reservoir reaches neither normal storage, a rule curve nor dead storage

In 90 days it would hold about 65.4 million m³ (48.2% of capacity)

TodayOctNovDecJanFeb
  • 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.

Map of Huai Luang DamUdon ThaniHuai Luang Dam
The red dot is the dam; the dark line is the river it stands on.

Key facts

Location
Kut Chap District, Udon Thani province
Coordinates
17.3604, 102.5724
Reservoir capacity
136 million m³
Maximum capacity
136 million m³
Dead storage
6.6 million m³
Operator
Royal Irrigation Department

Maximum capacity and dead storage from the Royal Irrigation Department

Frequently asked questions

Where is Huai Luang Dam?
Huai Luang Dam is in Kut Chap District, Udon Thani province.
What is the water level of Huai Luang Dam today?
Huai Luang Dam is 53.5% full, holding 72.6 million m³, as of 14 Nov 2026.
How much water can Huai Luang Dam hold?
The reservoir of Huai Luang Dam holds 136 million m³.
Who runs Huai Luang Dam?
Huai Luang Dam is run by the Royal Irrigation Department.
What is the Huai Luang Dam called in Thai?
In Thai the Huai Luang Dam is เขื่อนห้วยหลวง.