Erattayar
Idukki district · KSEB · Erattayar basin · report 01 Nov 2026, 11:00 IST
Storage
15.7%
Previous 15.7%
Water level
747.30 m (2451.8 ft)
FRL 754.38 m (2475.0 ft)
Spillway release
—
Latest report
Rain forecast
12 mm
Next 72h 31 mm
Storage & water level — last 30 days
Risk breakdown
- • 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 Erattayar 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 Erattayar 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
- 20.3°C
- Humidity
- 99%
- Rain 24h
- 24.7 mm
- Wind
- 7 km/h
- Gusts
- 15 km/h
- Pressure
- 914 hPa
AI analysis
An AI analysis for this reservoir will appear after the next scheduled briefing.
- Danger alert — Erattayar · 04 Aug 2026, 02:00 IST
- Danger alert — Erattayar · 04 Aug 2026, 01:44 IST
- Danger alert — Erattayar · 03 Aug 2026, 10:14 IST
Environmental & carbon accounting
Insufficient data- Reservoir methane (gross)
- Not enough data /yr
- Green carbon — catchment forest
- Not enough data /yr
- Blue carbon — sediment burial
- Not enough data /yr
- Hydropower grid offset
- Not enough data /yr
CH₄ from flooded land × GWP-100 (27), age-adjusted
Western Ghats forest sink, 60% forest cover assumed
—
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
- 754.38 m (2475.0 ft)
- Power station
- —
- Installed capacity
- —
- Purpose
- —
- Operator
- KSEB
- River
- Erattayar
- Basin
- Periyar
- Nearby towns
- Kattappana
- Emergency contact
- 1077