Part 2: Why Bengaluru floods — Understanding history and location

As Bengaluru forgot its history and expanded into the valleys, over the last two decades, some parts of the city became more vulnerable to floods.

In a previous article, Citizen Matters summarised and republished the first in the YouTube series of Arun Pai’s video explainers on why Bengaluru floods to provide insights on the reasons for the city experiencing its worst floods in September this year.

In episode one of the series, Arun Pai explains how elevation determines why certain parts of Bengaluru flood. The second and third episodes in the “Floodsplaining” “series respectively explain how our ancestors captured and utilised rain water and how some locations in the city are more vulnerable to floods.

Arun Pai, founder of Bangalore Walks, uses interactive maps, history trivia, and quizzes in the video series on the Bangalore Walks’ YouTube channel, to explain in detail, the causes for floods and possible solutions. He focuses on reasons for flooding and not on who is to blame.

Recent flooding in Bengaluru
Post rain waterlogging in a residential neighbourhood in central Bengaluru. Pic: Shreya Nath

History matters

In episode two of the series, titled “Blr Floods-History Matters!” Arun Pai asks a quiz question: How many lakes are there in Bengaluru? The answer will give you much-needed information.

Arun Pai then goes onto provide fascinating insights, engaging viewers using maps, trivia, and quizzes, on how, over 700 years ago, our ancestors created engineering marvels to capture rain water. He also explains how Bengaluru is one of the few cities that is not located near a water source, like a river or a sea, and that its only water source is rain. Rain water does not stay in Bengaluru, it has to be captured and stored. He then visits Vibhutipura tank, in South east Bengaluru, and takes viewers on a historical journey to the time period of 1308 AD, to understand how our ancestors effectively captured and utilised rain water.


Read more: An unequal monsoon: The impact of the floods on Whitefield’s poor settlements


Watch the full video here:

Episode two of FloodsPlaining series. Video courtesy: Bangalore Walks YouTube channel

Why location is important

In episode three, titled “Location Matters! It’s about black & blue”, Arun Pai stresses that location explains why some parts of Bengaluru flood. He traces, via a topographical map, how rapid urbanisation has made some parts of the city more vulnerable to flooding.


Read more: The story of Thippagondanahalli Dam on the Arkavathi


In the  1990s, settlements were located in the ridge, which was protected from excessive flooding. However, over the last few decades, the city has expanded into the valleys, making some areas prone to flooding. This explains why Mahadevpura flooded as it is located in a valley, surrounded by high grounds on three sides.

Episode three of the FloodsPlaining series. Video courtesy: Bangalore Walks YouTube channel

[The videos have been republished with permission]

Also read:

Leave a Reply

Your email address will not be published. Required fields are marked *

Similar Story

ஈரநிலத்தில் சென்னை குப்பை எரிவுலை திட்டம்: வடசென்னைக்கு வெள்ள அபாயத்தை தீவிர படுத்தக்கூடிய மற்றொரு திட்டம்

The proposed Waste-to-Energy plant in Kodangaiyur will take a heavy toll on the area's ecology and the health of people living in the locality.

பெருநகர சென்னை மாநகராட்சி, ஒருங்கிணைந்த திடக்கழிவு மேலாண்மை திட்டத்தின் (Integrated Solid Waste Processing Facility (IWPF)) கீழ், 2100 மெட்ரிக் டன் கழிவுகளை எரித்து மின்சாரம் உற்பத்தி செய்யும் எரிவுலையை கொடுங்கையூரில் நிறுவ திட்டமிட்டுள்ளது. இந்த  திட்டத்தின் தளம் - 01 குப்பை எரிவுலை (Waste-to-Energy Facility) திட்டமிடப்பட்டுள்ள இடம், ஈரநிலமாக அறியப்படும் சர்க்கார் நஞ்சை பகுதியில் அமைந்துள்ளது, இது வெள்ள பாதிப்புக்குட்பட்ட ஒரு பகுதியாகும். அதே நேரத்தில், இந்த இடம் ஏல ஆவணங்களில் (Tender Documents) குறைந்த வெள்ள பாதிப்புள்ள பகுதியில் உள்ளதாக தவறாக சித்தரிக்கப்பட்டுள்ளது.  இதனால் இப்பகுதியில் சுற்றுச்சூழல் பாதிப்பு ஏற்பட்டு மழைக்காலங்களில் அதிக வெள்ளம் ஏற்படும் வாய்ப்பை உருவாக்கும்.  இயற்கையான ஈரநிலங்களின் முக்கியத்துவம் பெருநகர சென்னை மாநகராட்சி - ஒருங்கிணைந்த திடக்கழிவு மேலாண்மை திட்டம் மூலம் மண்டலம் 1 முதல் 8 வரை உற்பத்தியாகும் திடக்கழிவுகள் மற்றும் மண்டலம் 9 முதல் 15 வரை பிரிக்கப்பட்ட…

Similar Story

Caught in the tides: Can Chennai protect its Olive Ridley turtles?

This video examines the mass mortality of Olive Ridley turtles along Chennai's shores, emphasising the need for immediate conservation efforts

Chennai witnessed an unprecedented environmental disaster this year, as more than 1,000 dead Olive Ridley turtles washed ashore in January. The mass mortality event has put the Forest and Fisheries Departments, along with voluntary organisations, on high alert, prompting collaborative efforts to strengthen Olive Ridley turtle conservation. The Tamil Nadu Marine Fishing Regulation Act, 2020, which mandates mechanised trawlers to fish at least five kilometres from the shore, was enforced more strictly from late January. Fishermen were educated on the dangers of ghost nets and urged to use Turtle Excluder Devices (TEDs) to prevent accidental turtle entanglement. Read more: Oil…