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Cheruthoni

Idukki district · KSEB · Cheruthoni basin

No warning — below every published alert level

Storage

Water level

FRL 732.43 m (2403.0 ft)

Spillway release

Latest report

Rain forecast

11 mm

Next 72h 37 mm

Storage & water level — last 30 days

Risk breakdown

Flood risk3
Landslide risk13
Reservoir stress0
Watershed saturation10
River overflow1
  • No official alert levels defined
  • No official alert levels are defined for this structure

Rate of rise(derived)

Trend needs two bulletins

Projection needs 3 days of bulletins (0 held).

Downstream exposure

The downstream reach and local body list for Cheruthoni have not been transcribed from a District Disaster Management Plan yet, so none are shown.

District control room: 1077 / 04862-233111

Rule curve — seasonal operating target

No rule curve (seasonal guide curve) is published for Cheruthoni in a form this platform can verify, so none is shown. Where an operating curve is published — as for Idukki after the 2018 floods — it is plotted against actual storage instead of being estimated.

Rainfall forecast — next 48 hours

Spillway releases

Current weather at the dam

Temperature
22.0°C
Humidity
97%
Rain 24h
11.7 mm
Wind
6 km/h
Gusts
15 km/h
Pressure
935 hPa

AI analysis

An AI analysis for this reservoir will appear after the next scheduled briefing.

Reservoir information bulletin

Commissioned
1976
Dam type
Concrete gravity
Height
138.4 m (454.0 ft)
Length
Gross capacity
Live capacity
Catchment area
Full reservoir level
732.43 m (2403.0 ft)
Power station
Installed capacity
Purpose
Hydroelectric, spillway for Idukki
Operator
KSEB
River
Cheruthoni
Basin
Periyar
Nearby towns
Cheruthoni, Idukki
Emergency contact
1077

Cheruthoni is the concrete gravity dam of the Idukki reservoir complex and carries the scheme's only spillway. Its five shutters were opened in August 2018 for the first time in 26 years during the Kerala floods.