2025: Dam Induced Urban Floods in India

December 7, 2025 SANDRPLeave a comment

(Feature Image: The Musi river in flood spate in Hyderabad on Sept 27, 2025 following incessant rains and the lifting of gates at the overflowing Osman Sagar and Himayatsagar reservoirs. Credit: Nagara Gopal )

In 2025, we could find reports on two Indian cities facing the impact of dam induced floods. While the excessive discharges by Himayat Sagar reservoir severely inundated residential areas along Musi river in Hyderabad in last week of Sept 2025, the significant releases by Ukai dam authority into Tapi river affected daily life in Surat city twice in mid Aug and first week of Sept. 2025.

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Dam floods · Monsoon · Yamuna River

Did Ichari, Vyasi Dams Influence Yamuna Floods in 2025?

October 20, 2025 SANDRP1 Comment

(Feature Image: Ichari (Koti) Dam on Tons river in Dehradun in empty condition in first week of Sept. 25)

In the South West Monsoon 2025, the Yamuna river witnessed 3 flood spells in a span of two weeks between Aug. 17 and Sep 1. In the first and medium scale flood spell, hourly discharges crossed 1 lakh cusecs for 12 hours on Aug 17 and 1,78,996 cusecs flood was recorded at 16 hour at Hathnikund Barrage (HKB), in Yamuna Nagar, Haryana.

In the second and low scale flood spell, river received above 50,000 cusecs discharges for 21 hours on Aug. 29 with the peak volume of 83,774 cusecs at 16 hour. In the final and first high scale flood spell, hourly water volume in the river crossed 1 lakh cusecs for about 129 hours beginning at 4.00 hour on Sep 1 till 12:00 hour on Sep 5, and 3,29,313 lakh cusecs was recorded as peak flood volume at 9:00 hour on Sep 1.

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floodplains · Floods · Urban Flood · Urban Rivers · Yamuna River

Yamuna Photo Blog Sept 2025: ‘Riverfront’ Projects submerged Again

September 18, 2025 SANDRPLeave a comment

(Feature Image: Entrace of Asita West projects flooded with Yamuna water on Sept. 05. 2025. Credit: Surendar Solanki)

Through pictures and satellite imagery, this blog documents the impact of Sept. 2025 Yamuna flood on Delhi Development Authority’s (DDA) riverfront projects. These 10 projects are being developed over the past 8 years in river floodplain and had also suffered damages during July 2023 floods. Earlier they were called part of floodplain rejuvenation but now being termed as Yamuna riverfront projects. DDA website has only shown name, size and location of riverfront projects, however has maintained secrecy on important factors of cost, progress, delays, damage and losses concerning these projects.

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Climate Change · Dam floods · Disasters

Aug 2025: Surwal Dam Floods Villages in Sawai Madhopur-Rajasthan

August 26, 2025August 27, 2025 SANDRPLeave a comment

(Feature Image: Surwal dam flood creates a huge crater in Jarwata village in Sawai Madhopur)

Overflowing of Surwal dam in Rajasthan has severely affected over a dozen villages for more than three days. The dam in Sawai Madhopur district overflowed following excessive rainfall on Aug 22-24, 2025[i]. The Surwal, Mainpura, Jarwata were among the most affected villages where several houses were submerged under 3-5 feet flood water damaging foodgrains and other essential items.

At least 13 people have been reported dead in the district in this flood episode.

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Urban Flood · Yamuna River

MoJS Comm. Report on July 2023 Delhi Floods: Fails to explain unprecedented flood levels

April 10, 2025April 10, 2025 SANDRPLeave a comment

(Feature Image: A view of overflowing Yamuna river at Wazirabad in New Delhi on 13 July 2023. Credit: HT_PRINT/Source: Live Mint)

Post July 2023 unusual flood spell in Yamuna river reaching unprecedented levels in Delhi, the Ministry of Jal Shakti (MoJS) on August 06, 2023, constituted a committee for conducting a “Joint flood management study of river Yamuna for its reach between Hathnikund and Okhla Barrage”. The Committee headed by Chairman, Central Water Commission (CWC) & Ex-Officio Secretary to Govt of India with members from Haryana, Uttar Pradesh, NCT of Delhi and expert Organizations was mandated to examine the meteorological aspects, return period of floods, discharging capacity of barrages, functional requirement of ITO barrage, etc.

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Dam floods · Narmada

Imprudent management of SSP and other Narmada dams could create avoidable flood disaster in Sept 2024?

September 11, 2024September 11, 2024 SANDRPLeave a comment

Similar to we wrote on Sept 1 2024 [i], but possibly with even greater flood prospects and urgency, the situation in Narmada River Basin is once again moving towards a massive avoidable flood disaster due to imprudent management of Sardar Sarovar dam in Gujarat and dams including Indira Sagar, Omkareshwar, Bargi and Tawa dams in Madhya Pradesh. All of these dams are full or almost full with IMD Flash Flood Bulletin (FFB, bulletin is updated thrice a day) as at 0730 hrs on Sept 11 2024 [ii] warning about the ongoing or imminent flash flood in Narmada Valley districts.

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Floods

August 2024 Tripura Floods: Questions over Disaster Management

August 23, 2024August 28, 2024 SANDRPLeave a comment

Tripura is facing one of its worst floods, possibly worst since 1983, affecting all districts, at least since 19^th August. South Tripura, Gomati and Unakoti are worst affected districts. According to latest estimates, at least 24 people have lost life with two more missing, 65400 people are in 450 relief camps, landslips at 2032 locations, 1.25 lakh ha crops submerged among other extensive damage. Total of around 1.7 million people or about 40% of state pulation are affected. 3 columns of army, 11 NDRF & 26 SDRF teams, 4 MI 17 helicopters and other emergency service teams are involved in rescue and relief works. The actual rainfall that started on Aug 19 gave enough warning for the state to prepare for the approaching disaster, but once again disaster management has failed to respond using this warning.

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Dam Induced Flood Disaster

July 2024: NMDC’s Iron Ore ‘Check-Dam’ Flood Disaster in Chhattisgarh

July 26, 2024 SANDRPLeave a comment

(Feature Image: Screenshot of NMDC’s ‘check-dam’ in flooded condition. Image Credit: NDTV MP/Chhattisgarh)

An iron ore check-dam of the National Mineral Development Corporation (NDMC) has breached and created flood disaster in downstream area of Kirandul town in Dantewada district of Chhattisgarh. The breach of earthen dam located between mines 11 B & 11 in eastern ridge of Bailadila range occurred around 3 pm on Jul 21, 2024 following heavy rainfall.

The subsequent deluge has affected several homes and vehicles in Bengali camp located downhill the dam in Kirandul town. There was chaos among the residents who fled to their safety seeing the flash flood. A six-year-old kid on his way to attend tuition class was washed away. The child was later rescued safely and hospitalized as per the Amar Ujala report.

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CWC - Central Water Commission

2022: CWC Flood Monitoring Sites in East India

September 12, 2022September 12, 2022 SANDRP1 Comment

Flood forecast and monitoring is essential part of Central Water Commission’s (CWC) work. Presently, the agency claims [I] issuing flood forecasts at 332 sites including 133 Inflow Forecast (IF) sites and 199 Level Forecast (LF) sites. Since 2018, SANDRP has been presenting critical analysis of CWC’s flood forecast website [II] in region wise manner.

In 2022 SW monsoon season, we have already published the overviews for North [III] and North East [IV] regions of the country. This third part in the series covers the states in East India including Bihar, Jharkhand, Chhattisgarh, Odisha and West Bengal (Ganga Basin). Our previous overviews for the region can be seen here (2018 [V]) and here (2019 [VI]).

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Dam Disaster

Andhra Pradesh: Dam Induced Flood Disaster in November 2021

December 5, 2021December 6, 2021 SANDRPLeave a comment

Feature image:- Damaged Annamayya dam on Cheyyeru river in Kadapa (Source:NaveenReddy@navin_ankampali)

After Pulichintala dam gate disaster [i] of August 05, 2021, the state of Andhra Pradesh has witnessed another dam induced flood disaster in 2021. This started with, part of Annamayya dam in Pennar (also called Penna) river basin [ii] getting washed away resulting in widespread destruction in downstream areas on November 19.

Around same time, there were more incidents of damages to dams and dam induced flooding in Kadapa, Chittoor, Anantapur districts of Rayalaseema and adjoining Nellore district. Firstly, the collapse of Pincha project ring bund contributed to Annamayya flood disaster. Then, one of metal bund of Mylavaram project was washed away.

Fourthly, the sudden releases from Veligallu and Buggavanka dams in Kadapa and Kalyani dam in Tirupati resulted in flash flood destruction in downstream areas. Apart from this, the leakages in Rayalacheruvu tank bund in Chittoor district could have turned into a big disaster.

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