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Mangalam

Palakkad district · Irrigation · Cherukunnapuzha basin · report 01 Nov 2026, 11:00 IST

Orange alert, second stage — level at or above the orange alert level
Mangalam dam and reservoir
Photo: Wikimedia Commons

Storage

89.0%

Previous 88.0%

Water level

77.27 m (253.5 ft)

FRL 77.88 m (255.5 ft)

Spillway release

0.3 cumecs

Latest report

Rain forecast

16 mm

Next 72h 33 mm

Storage & water level — last 30 days

Risk breakdown

Flood risk41
Landslide risk16
Reservoir stress79
Watershed saturation14
River overflow18
  • • Only 0.61 m of freeboard left below FRL
  • • Level 77.27 m is at or above the orange alert level of 76.52 m

Rate of rise(derived)

+0.02 m / 24 h

At the current rate, Red alert band in ~1.5 days (0.03 m to go)

Downstream exposure

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

District control room: 1077 / 0491-2505309

Rule curve — seasonal operating target

No rule curve (seasonal guide curve) is published for Mangalam 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
23.7°C
Humidity
98%
Rain 24h
24.9 mm
Wind
5 km/h
Gusts
15 km/h
Pressure
980 hPa

AI analysis

Mangalam is at orange alert with storage steady at 82%; the water level is 76.8 m, 1.08 m below the 77.88 m FRL, with no spill. Recent rainfall of 24.9 mm and forecasts of 15.8 mm in 24 hours and 32.9 mm in 72 hours are driving concern, while flood and landslide risk scores are 37 and 16; the next alert level would be triggered if further inflows push the reservoir to its specified red-alert threshold, which is not provided.

  • Orange alert alert — Mangalam · 26 Oct 2026, 08:37 IST
  • Red alert alert — Mangalam · 25 Oct 2026, 08:37 IST
  • Orange alert alert — Mangalam · 15 Aug 2026, 18:37 IST
  • Blue alert alert — Mangalam · 14 Aug 2026, 11:37 IST
  • Warning alert — Mangalam · 06 Aug 2026, 13:37 IST

Environmental & carbon accounting

Insufficient data
Reservoir methane (gross)
476 t CO₂e /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
50 t CO₂e /yr

≈ 50 indicative credits/yr

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
25.0 MCM
Live capacity
25.0 MCM
Catchment area
—
Full reservoir level
77.88 m (255.5 ft)
Power station
—
Installed capacity
—
Purpose
—
Operator
Irrigation
River
Cherukunnapuzha
Basin
Bharathapuzha
Nearby towns
Alathur
Emergency contact
1077