Rivers of Thailand

Storage dam

Khlong Si Yat Dam

เขื่อนคลองสียัด

Khlong Si Yat Dam is a storage dam in Tha Takiap District, Chachoengsao province. Its reservoir holds 420 million m³. It is run by the Royal Irrigation Department.

Reservoir storage today

91.3% of capacity at normal storage level

Water in the reservoir
384 million m³
Usable water
354 million m³ (90.6% of usable capacity)
Inflow
0.6 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 3.5 million m³ over the last 7 days

232 million m³ more than on the same day last year

384 million m³JanFebMarAprMayJunJulAugSeptOctNovDec
  • 2026
  • 2025
  • Normal storage 420 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 0.6 million m³ a day

  • Goes above the upper rule curve in 37 days (21 Dec 2026)
  • Reaches normal storage in 62 days (15 Jan 2027)

In 90 days it would hold about 437 million m³ (104% 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 Khlong Si Yat DamKhlong Si Yat Dam
The red dot is the dam; the dark line is the river it stands on.

Key facts

Location
Tha Takiap District, Chachoengsao province
Coordinates
13.4319, 101.6478
Reservoir capacity
420 million m³
Maximum capacity
450 million m³
Dead storage
30 million m³
Operator
Royal Irrigation Department

Maximum capacity and dead storage from the Royal Irrigation Department

Frequently asked questions

Where is Khlong Si Yat Dam?
Khlong Si Yat Dam is in Tha Takiap District, Chachoengsao province.
What is the water level of Khlong Si Yat Dam today?
Khlong Si Yat Dam is 91.3% full, holding 384 million m³, as of 14 Nov 2026.
How much water can Khlong Si Yat Dam hold?
The reservoir of Khlong Si Yat Dam holds 420 million m³.
Who runs Khlong Si Yat Dam?
Khlong Si Yat Dam is run by the Royal Irrigation Department.
What is the Khlong Si Yat Dam called in Thai?
In Thai the Khlong Si Yat Dam is เขื่อนคลองสียัด.