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Pazhassi (Barrage)

Kannur district · Irrigation · Valapattanam basin · report 01 Nov 2026, 11:00 IST

Controlled release — water is being released in regulated quantities, not a danger warning
Pazhassi (Barrage) dam and reservoir
Photo: Wikimedia Commons

Storage

5.0%

Previous 6.0%

Water level

17.73 m (58.2 ft)

FRL 26.52 m (87.0 ft)

Spillway release

41.4 cumecs

Latest report

Rain forecast

17 mm

Next 72h 46 mm

Storage & water level — last 30 days

Risk breakdown

Flood risk7
Landslide risk15
Reservoir stress4
Watershed saturation15
River overflow5
  • • Shutters / gates reported open — controlled release
  • • No official alert levels are defined for this structure

Rate of rise(derived)

-0.10 m / 24 h

Downstream exposure

Valapattanam river below Pazhassi barrage through Iritty and Kuttiattoor to Valapattanam

Local bodies on this reach: Iritty, Payyavoor, Kuttiattoor, Mattannur, Kolacherry, Valapattanam

District control room: 1077 / 0497-2713266

Rule curve — seasonal operating target

No rule curve (seasonal guide curve) is published for Pazhassi (Barrage) 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
24.9°C
Humidity
99%
Rain 24h
21.5 mm
Wind
1 km/h
Gusts
5 km/h
Pressure
1006 hPa

AI analysis

Pazhassi is at red alert with only 9% storage and a water level of 18.6 m versus the 29.26 m FRL, while releasing 2,101.61 cumecs through 15 open shutters. The situation is being driven by 35.6 mm of recent rain and 86.5 mm forecast over 72 hours, with flood risk 32 and landslide risk 24; the next escalation would be triggered if continued inflows require opening the final shutter or raising releases further.

  • Controlled release alert — Pazhassi (Barrage) · 14 Sep 2026, 13:37 IST
  • Controlled release alert — Pazhassi (Barrage) · 06 Aug 2026, 20:30 IST
  • Danger alert — Pazhassi (Barrage) · 06 Aug 2026, 20:00 IST
  • Controlled release alert — Pazhassi (Barrage) · 06 Aug 2026, 19:55 IST
  • Danger alert — Pazhassi (Barrage) · 06 Aug 2026, 18:30 IST

Environmental & carbon accounting

Insufficient data
Reservoir methane (gross)
286 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
30 t CO₂e /yr

≈ 30 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
Barrage
Height
—
Length
—
Gross capacity
15.0 MCM
Live capacity
15.0 MCM
Catchment area
—
Full reservoir level
26.52 m (87.0 ft)
Power station
—
Installed capacity
—
Purpose
Irrigation and drinking water
Operator
Irrigation Department
River
Valapattanam
Basin
Valapattanam
Nearby towns
Mattannur, Kannur
Emergency contact
1077

The Pazhassi barrage across the Valapattanam river in Kannur is a shutter-controlled diversion structure with only a small live storage. During the monsoon its shutters are held open, so very large flows pass downstream even when the pond behind the barrage is nearly empty.