Rivers of Thailand

Storage dam

Kaeng Krachan Dam

เขื่อนแก่งกระจาน

Kaeng Krachan Dam is a storage dam on the Phetchaburi River in Kaeng Krachan District, Phetchaburi province. Its reservoir holds 710 million m³. It was completed in 1966.

Reservoir storage today

95.3% of capacity at normal storage level

Water in the reservoir
677 million m³
Usable water
612 million m³ (94.8% of usable capacity)
Inflow
1.8 million m³ a day
Released
3 million m³ a day

As of 13 Nov 2026 Data from the National Hydroinformatics Data Center (ThaiWater), HII, refreshed every 10 minutes

Storage this year and last

Down 3.7 million m³ over the last 7 days

135 million m³ more than on the same day last year

677 million m³JanFebMarAprMayJunJulAugSeptOctNovDec
  • 2026
  • 2025
  • Normal storage 710 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 1.2 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 568 million m³ (80% 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 Kaeng Krachan DamPhetchaburiHua HinKaeng Krachan Dam
The red dot is the dam; the dark line is the river it stands on.

Key facts

Location
Kaeng Krachan District, Phetchaburi province
Coordinates
12.9169, 99.6303
Reservoir capacity
710 million m³
Maximum capacity
900 million m³
Dead storage
65 million m³
Dam height
58 m
Dam type
Embankment dam
Installed power capacity
19 MW
Completed or opened
1966

Maximum capacity and dead storage from the Royal Irrigation Department

Frequently asked questions

Where is Kaeng Krachan Dam?
Kaeng Krachan Dam is in Kaeng Krachan District, Phetchaburi province.
What is the water level of Kaeng Krachan Dam today?
Kaeng Krachan Dam is 95.3% full, holding 677 million m³, as of 13 Nov 2026.
How much water can Kaeng Krachan Dam hold?
The reservoir of Kaeng Krachan Dam holds 710 million m³.
When was Kaeng Krachan Dam built?
Kaeng Krachan Dam was completed and opened in 1966.
What is the Kaeng Krachan Dam called in Thai?
In Thai the Kaeng Krachan Dam is เขื่อนแก่งกระจาน.