Why is DEHDRADUN Flooding

Multi-level Car Park at Govindghat, Garwhal, Uttarakhand.
  • What is the cause of flooding in Dehdradun and loss of life/homes in Garwhal during 2025 floods? What can government and people learn? We must respect nature. Garwhal is Dev Bhoomi, not Tourism/SUV Bhoomi. Why Kumaon does not flood like Garwhal. 

Earlier Garwhal and Kumaon, two regions of the current state of Uttarakhand (UTK) were part of Uttar Pradesh. The state of UTK was formed towards the end of the year 2000. Ever since Dehradun was declared the state capital it has seen a large increase in population.

 

Till then, Dehradun was a small town known for Doon School, Doon Valley and as a gateway to the popular hill-station Mussoorie. It had a number of local rivers like local rivers like Tons, Song, Asan, Tamsa, Karligad (Sahastradhara) and Rispana. With increase in population, these rivers became Nalas and people began to settle on their banks.

 

Now, due to heavy rains in upper reaches the water flow suddenly increased, causing flooding in the nearby houses and shops.

 

Such problems are not restricted to Dehradun alone. In the past five to seven years and more since UTK's formation, the state has seen an increase in tourist/pilgrim traffic, and number of hotels, restaurants, shops, and homestays along motorways has been increasing. 

 

People are completely ignoring the sensitive nature of the river banks, and this uncontrolled and unplanned process of development continues unabated.

 

Now the goal is how to how to make the drive easier from Delhi-NCR to Mussoorie through Dehradun for the comfort of tourists, never mind the carrying capacity of Mussoorie.

So, the state government has proposed an elevated corridor in Dehradun, right on the riverbeds of Rispana and Bindal, to decongest traffic. This means numerous concrete pillars would be placed inside the two rivers, trees cut, river life and families displaced. Even if families are rehabilitated, what is being forgotten is that Dehradun is part of the fragile Doon Valley. Once destroyed, its rivers, aquifers, and forests cannot be restored. Further, has anyone thought of the impact of the next major flood on these pillars in the rivers!

Due to its unique environmental and climatic variations, landslides, floods, and cloudbursts are common occurrences. Flood silt from the Kheer Ganga River in Dharali (where cloudburst took place in August), this alluvial fan (the flat and moderately sloping area where Kheer Ganga meets the Bhagirathi River in Dharali is shaped like a conical fan. In geographical terminology, this type of landform is called an alluvial fan),, extending up to the banks of the Bhagirathi River, has been flooded numerous times in the past and has even changed its course. 

 

Earlier, ancient mountain communities, with a deep understanding of folk science, have traditionally built their homes based on safe topography, geological structure, sunlight, and wind direction. Following this understanding, they never attempted to encroach on river paths.

 

Now, we attempt to conquer all. The humility of earlier times has gone.

Also, the process of increasing urbanization in small towns and cities along the roadside has disrupted the local ecological balance increasing trend of uneven development in the region. Further, insensitivity towards the Himalayas, changing nature of monsoons have further increased the severity of this disaster NOT to forget human settlements near the river flow, around landslide prone areas and with old landslide sediments, along highways  

These factors combined have intensified the impact of the floods and increased the risk to local communities.

These incidents are also destroying the rich biodiversity of the region. We must remember that Hill States are major sources of Ayurvedic herbs and flora/fauna.

View of two more residents of Dehradun

Mukul Prakash writes, “The message from this dhara of destruction and death that Doon has faced is not for scientists and intellectuals. It is for you and me fellow citizens. A call to bring back the harmony that has created our unique city, it has a message - stop construction on flood plains, stop the wanton deforestation, now. Most of all we need to put a stop to the pervasive sense of cynicism and lack of concern for consequences that seemingly dominates planning processes.

 

We need new cities, tourist centres, and ways to accommodate the millions who wish to visit our beautiful state, but can this be done by allowing destruction of whatever we have? 

 

Let us allow Sahastradhara to live.”

 

Ajay Chaturvedi gives three reasons -

1. “Heavy Monsoon Rainfall: Intense and concentrated rainfall overwhelmed rivers, streams, and drainage systems.

2. Deforestation & Urbanization: Hillsides and catchment areas have lost vegetation, reducing water absorption and increasing surface runoff.

3. Riverbed Encroachment & Blocked Drains: Construction near rivers and clogged drains hinder natural water flow, leading to overflow and urban flooding.

 

We must learn – 

1. To live in harmony with nature, respect it and not try to dominate it. 

2. That the plains model of development will not work in the hills. 

3. That UTK is in the sensitive category from a geological perspective. 

4. To ascertain the carrying capacity of the hills and restrict visitors to that.

Garwhal is DEV Bhoomi (pilgrimage) not Tourism/SUV Bhoomi.

Why does Kumaon not flood like Garwhal does?

Total UTK area is 53,483 sq kms of which Kumaon is 21,000 so much smaller than Garwhal.

 

According to Uttrakhand based social activist, Anoop Nautiyal the reasons are many. “The Garwhal region is geologically more fragile compared to Kumaon, lying closer to the Himalayan fault lines. Garwhal also has more glaciers. With risks from glacial lake cloudburst floods (GLOFs) increasing in frequency and intensity, the inherent risks in Garhwal are higher. The Ganga and numerous rivers that dot the Himalayan landscape in Garhwal are glacial fed and larger than the ones in Kumaon. 

Coming to the man-made differences.

Garwhal has the annual Char Dham Yatra that attracts lakhs of devotees/tourists. Many of them come by cars/SUV. Their fumes along with those from helicopter services that run across Char Dham pollute the atmosphere. To serve the same tourists and to an extent for defence needs, four-laning of the roads to Char Dham. It also matters how roads are made – when made from cutting mountains. If the malba-rubble from mountains is dumped into rivers it is bound to have an ecological impact. Overall excessive concretization of an ecologically sensitive region.”

Om Shanti

To read all articles by author

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2.  Floods in North India - Are We MANUFACTURING DISASTERS

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4. River diverted by Dehradun Resort Owner  

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