Erattayar

Idukki district · KSEB · Erattayar basin · report 04 Aug 2026, 14:00 IST

Danger

Storage

25.2%

Previous 25.2%

Water level

748.40 m (2455.4 ft)

FRL 754.38 m (2475.0 ft)

Spillway release

—

Latest report

Rain forecast

14 mm

Next 72h 28 mm

Storage & water level — last 30 days

Risk breakdown

Flood risk15

Landslide risk19

Reservoir stress21

Watershed saturation13

River overflow7

• Level 748.40 m is at or above the official red rule level of 748.28 m

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: 19.4°C
Humidity: 99%
Rain 24h: 24.6 mm
Wind: 18 km/h
Gusts: 40 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

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