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

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
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
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.
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.
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
Every monitored structure on this river, ordered by how much water it is passing downstream right now.
| Structure | Level / FRL (m) | Storage | Inflow | Outflow | Status |
|---|---|---|---|---|---|
| KallarIdukki | 820.20 / 824.482690.9 ft / 2705.0 ft | 25.1% | — | — | No warning — below every published alert level |
| KundalaIdukki | 1756.65 / 1758.695763.3 ft / 5770.0 ft | 77.9% | — | — | Orange alert, second stage — level at or above the orange alert level |
| Madupetty (Mattupetty)Idukki | 1581.35 / 1599.595188.2 ft / 5248.0 ft | 29.8% | — | — | No warning — below every published alert level |
| KallarkuttyIdukki | 453.45 / 456.251487.7 ft / 1496.9 ft | 69.6% | — | — | No warning — below every published alert level |