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Kallar

Idukki district · KSEB · Muthirapuzha basin · report 01 Nov 2026, 11:00 IST

No warning — below every published alert level
Kallar dam and reservoir
Photo: Wikimedia Commons

Storage

25.1%

Previous 25.1%

Water level

820.20 m (2690.9 ft)

FRL 824.48 m (2705.0 ft)

Spillway release

—

Latest report

Rain forecast

51 mm

Next 72h 72 mm

Storage & water level — last 30 days

Risk breakdown

Flood risk15
Landslide risk16
Reservoir stress21
Watershed saturation13
River overflow7
  • • No official alert levels defined
  • • No official alert levels are defined for this structure

Rate of rise(derived)

0.00 m / 24 h

Downstream exposure

The downstream reach and local body list for Kallar 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 Kallar 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
18.8°C
Humidity
90%
Rain 24h
6.5 mm
Wind
1 km/h
Gusts
8 km/h
Pressure
869 hPa

AI analysis

Kallar is at 820 m, 4.48 m below full reservoir level, with storage at 24.12% and no spill; all gates remain closed. Recent rain of 21.2 mm and a 72-hour forecast of 45.3 mm are driving a moderate flood risk of 46, but the next alert would be triggered only when the reservoir reaches the applicable alert-level threshold, which is not provided.

Environmental & carbon accounting

Insufficient data
Reservoir methane (gross)
Not enough data /yr

CH₄ from flooded land × GWP-100 (27), age-adjusted

Green carbon — catchment forest
Not enough data /yr

Western Ghats forest sink, 60% forest cover assumed

Blue carbon — sediment burial
Not enough data /yr

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Hydropower grid offset
Not enough data /yr

vs CEA grid 0.716 kg CO₂/kWh, 35% capacity factor

Net catchment balance: Not enough data/yr (forest + sediment sinks minus reservoir methane)

Estimate, not a measurement — built from IPCC 2019 Flooded Lands factors and public dam data. Kerala does not publish measured reservoir emissions. Credits shown are indicative, not registered. How this is calculated

Reservoir information bulletin

Commissioned
—
Dam type
—
Height
—
Length
—
Gross capacity
—
Live capacity
—
Catchment area
—
Full reservoir level
824.48 m (2705.0 ft)
Power station
—
Installed capacity
—
Purpose
—
Operator
KSEB
River
Muthirapuzha
Basin
Periyar
Nearby towns
—
Emergency contact
Kerala SDMA: 1077 / 0471-2364424

Muthirapuzha river system — levels & flow

Every monitored structure on this river, ordered by how much water it is passing downstream right now.

StructureLevel / FRL (m)StorageInflowOutflowStatus
KallarIdukki820.20 / 824.482690.9 ft / 2705.0 ft25.1%——No warning — below every published alert level
KundalaIdukki1756.65 / 1758.695763.3 ft / 5770.0 ft77.9%——Orange alert, second stage — level at or above the orange alert level
Madupetty (Mattupetty)Idukki1581.35 / 1599.595188.2 ft / 5248.0 ft29.8%——No warning — below every published alert level
KallarkuttyIdukki453.45 / 456.251487.7 ft / 1496.9 ft69.6%——No warning — below every published alert level