Bhoothathankettu (Barrage)
Ernakulam district · Irrigation · Periyar basin · report 01 Nov 2026, 11:00 IST
Storage
—
Water level
32.00 m (105.0 ft)
FRL 34.95 m (114.7 ft)
Spillway release
32.0 cumecs
Latest report
Rain forecast
33 mm
Next 72h 57 mm
Storage & water level — last 30 days
Risk breakdown
- • Shutters / gates reported open — controlled release
- • No official alert levels are defined for this structure
Rate of rise(derived)
+0.90 m / 24 h
Downstream exposure
Periyar from Bhoothathankettu barrage through Neeleeswaram and Aluva to the Kochi backwaters
Local bodies on this reach: Kothamangalam, Kavalangad, Pindimana, Nellikuzhy, Neeleeswaram, Vengoor, Perumbavoor, Aluva, Kalady, Chengamanad
District control room: 1077 / 0484-2423513
Rule curve — seasonal operating target
No rule curve (seasonal guide curve) is published for Bhoothathankettu (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
- 24.0°C
- Humidity
- 99%
- Rain 24h
- 27.5 mm
- Wind
- 2 km/h
- Gusts
- 5 km/h
- Pressure
- 1006 hPa
AI analysis
Bhoothathankettu Barrage is at yellow alert, with water level at 33.45 m—1.50 m below the 34.95 m FRL—and spilling 85.28 cumecs through three open shutters. Recent rain of 27.5 mm and a forecast of 32.5 mm in 24 hours and 56.7 mm in 72 hours are driving inflows; the next alert would be triggered if the water level reaches the authority’s orange-alert threshold, which is not provided.
- Controlled release alert — Bhoothathankettu (Barrage) · 06 Aug 2026, 20:37 IST
- Danger alert — Bhoothathankettu (Barrage) · 06 Aug 2026, 18:30 IST
- Controlled release alert — Bhoothathankettu (Barrage) · 06 Aug 2026, 18:24 IST
- Watch alert — Bhoothathankettu · 03 Aug 2026, 10:13 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
- Barrage
- Height
- —
- Length
- —
- Gross capacity
- —
- Live capacity
- —
- Catchment area
- —
- Full reservoir level
- 34.95 m (114.7 ft)
- Power station
- —
- Installed capacity
- —
- Purpose
- Irrigation and flood regulation
- Operator
- Irrigation Department
- River
- Periyar
- Basin
- Periyar
- Nearby towns
- Kothamangalam
- Emergency contact
- 1077
Bhoothathankettu regulates the combined flow of the Periyar and Idamalayar for the Periyar Valley Irrigation Project in Ernakulam district.
Periyar river system — levels & flow
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 |
|---|---|---|---|---|---|
| Bhoothathankettu (Barrage)Ernakulam | 32.00 / 34.95105.0 ft / 114.7 ft | — | — | 32 m³/s | Controlled release — water is being released in regulated quantities, not a danger warning |
| MullaperiyarIdukki | — / 46.33— / 152.0 ft | — | — | — | No warning — below every published alert level |
| Lower Periyar (Pambla)Idukki | 250.60 / 253.00822.2 ft / 830.1 ft | 77.7% | — | — | No warning — below every published alert level |
| NeriamangalamIdukki | — / —— / — | — | — | — | No warning — below every published alert level |
| IdukkiIdukki | 721.96 / 732.432368.6 ft / 2403.0 ft | 62.7% | — | — | No warning — below every published alert level |