# River flooding in Uttarakhand, Uttar Pradesh, and Bihar

> Live situation record from CLSTR: https://clstr.news/situations/river-flooding-in-uttarakhand-and-uttar-pradesh
> Updated: 2026-08-26T17:20:37.000Z. Sources: 11. Developments: 6.

Heavy monsoon rains and glacial-related landslides in Nepal have intensified flooding across Uttarakhand, Uttar Pradesh, and Bihar. In Gonda, the Ghaghara River is swelling, threatening over 15 villages in the Colonelganj and Tarabganj areas, with an estimated 30,000 people at risk if levels continue to rise. In Mau, the Saryu River rose 40 centimeters in 24 hours, reaching 70.00 meters—10 centimeters above its danger mark.

The crisis has been further compounded by flash floods in Nepal, where surges in the Bhote Koshi and Trishuli rivers have impacted the Gandak River system. To manage rising waters, authorities opened all 36 gates at the Valmikinagar Gandak Barrage, with discharge levels reaching 1.50 lakh cusecs and projected to peak at 2 lakh cusecs. While officials note these levels are lower than historical peaks, a potential 3-meter flood wave remains a concern for downstream regions.

In Bihar, nine districts—including West Champaran, East Champaran, Gopalganj, Muzaffarpur, Siwan, Saran, Sheohar, Sitamarhi, and Vaishali—are on high alert. In Uttar Pradesh, monitoring has been ordered for the Gandak and Narayani rivers in Maharajganj and Kushinagar. Central leadership is coordinating with state Chief Ministers, and NDRF and SDRF teams have been deployed to sensitive low-lying areas.

## Timeline

### 2026-08-26: Gandak River flood alert issued in Bihar and Uttar Pradesh

Flash floods in Nepal have triggered high alerts in Bihar and Uttar Pradesh, India. Authorities opened 36 gates at the Gandak Barrage to manage rising water levels following heavy surges from upstream.

4 sources. https://clstr.news/cluster/gandak-barrage-discharges-150000-cusecs-following-nepal-flash-floods

### 2026-08-23: Prayagraj rivers rise, shifting Sangam confluence point

Rising Ganga and Yamuna river levels in Prayagraj are shifting the Sangam confluence point and flooding low-lying areas, disrupting local businesses and religious sites during the monsoon season.

2 sources. https://clstr.news/cluster/prayagraj-rivers-rise-shifting-sangam-confluence-point

### 2026-08-22: Rivers in Bihar and Uttar Pradesh exceed danger levels, raising flood risks

Rising water levels in the Ganges and other major rivers have triggered flood warnings and submerged riverbanks across Bihar and Uttar Pradesh, affecting multiple districts and religious sites.

3 sources. https://clstr.news/cluster/rivers-in-bihar-and-uttar-pradesh-exceed-danger-levels-raising-flood-risks

### 2026-08-20: Rivers in Uttar Pradesh rise, causing flood risks in Ayodhya and Bhadohi

Rising river levels in Ayodhya and Bhadohi have caused flooding concerns, with the Saryu River exceeding danger marks and the Ganga showing a slight decrease in water levels.

4 sources. https://clstr.news/cluster/rivers-in-uttar-pradesh-rise-causing-flood-risks-in-ayodhya-and-bhadohi

### 2026-08-17: Rivers Ghaghara and Saryu swell, threatening villages with flooding

Rising water levels in the Ghaghara and Saryu rivers have put dozens of villages and approximately 30,000 people at risk of flooding in the Gonda and Mau regions.

2 sources. https://clstr.news/cluster/rivers-ghaghara-and-saryu-swell-threatening-villages-with-flooding

### 2026-08-13: Saryu River rises in Bageshwar amid monsoon rains

Authorities in Bageshwar, Uttarakhand, have issued an alert as the Saryu River rises due to monsoon rains, warning residents to avoid the riverbanks and stay away from the water.

2 sources. https://clstr.news/cluster/saryu-river-rises-in-bageshwar-amid-monsoon-rains

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Cite as: River flooding in Uttarakhand, Uttar Pradesh, and Bihar. CLSTR, https://clstr.news/situations/river-flooding-in-uttarakhand-and-uttar-pradesh