This is an ambitious project

We plan to make an impact by crowdsourcing a technically robust, transparent, and agile Strategic Flood Management Plan for Chennai.

Typically paid studies of this nature run for years with dedicated, expensive expertise. We aim to continuously deliver flood management outcomes without the constraints of protecting intellectual property or packing up when the budget is done.




Driven by Hydrata

Hydrata has built this platform as a proof of concept, and to create an environment where we can experiment, engage, collaboratively learn and continously improve. 

Find out more at


We don't make decisions - We support decision making

Our purpose is to support the government of Chennai by sourcing robust, actionable and transparent flood management data.

Chennai Flood Management is a not-for-profit project, supported in Chennai by the Citizen consumer and civic Action Group (CAG).


We believe in continuous improvement over a fixed answer

and we are continuously developing the tools to support this mission.


This project will be built by motivated individuals

In addition to the warm and fuzzy feeling that comes with making a difference in the world, our contributors enjoy the opportunity to:

Work with the technology of your choice. Contributing to Chennai is a great way to learn new technology you can take back to your day job.

  • Collaborate internationally, demonstrate your skills in an open environment and work with people you share common beliefs with
  • Learn from others by working "in the trenches" with them. Bring these lessons back to your local projects.
  • Donate as much or as little of your time as you wish, when you wish, and finally, 
  • To rigourously experiment without fear of blowing your budget. 


The content on our site is community regulated

As we continue to draw from the experience of contributors around the world, we adopt a "best available information" approach to each chapter.

We expect that in the early stages of the project, much of this work will be relatively coarse. This work is still valuable, as it highlights what needs to be done, and allows a more focused upcoming iteration.

In order for contributions to be useful, they must be open for review. We will moderate work that is not transparent. If we can't trace how an answer was developed, we can't build on it or rely on it.


About Us

We believe that transparency and collaboration lead to better management outcomes. Our mission is to assist willing organisations open their data to achieve outcomes that can't be done alone. was lauched in late April 2016 to facilitate collaboration and communication of data that will reduce the impact of future flood events on the city of Chennai. 

Flood Management is not something that can be done independently. It requires interaction with Urban Planning, Transport, Emergency Services, Communications and a host of other stakeholders. 

By working in an open fashion, we want to encourage collaboration with others who can contribute valuable knowledge. 


David Kennewell

Water Resources Engineer,


I design and assess infrastructure that interacts with our water resources. Things like railways, mines, new buildings or water treatment works. Once we understand the big picture, I work to mitigate the potential impacts. This helps create sustainable cities.

I am also a web developer, because having the right answer is no good if you can't communicate it.

Craig D'Souza

Research Associate

My research is centred around the use of environmental (hydrological, meteorological, water quality) and socio-economic data to understand the dynamic nature of water issues.

I contribute to thematic projects of the 'Forum for Policy Dialogue on Water Conflicts in India' including Industrial-Agricultural water allocations and the Right to Water and Sanitation in India.

I am also a Geospatial Analyst.

Satyarupa Shekhar

Director, Government Outreach and Advisory Services, 

Citizen consumer and civic Action Group (CAG)

I lead research on metropolitan governance and open data initiatives. The work aims to overcome challenges accessing basic services posed by a lack of data and information, while improving transparency and accountability. 

I also co-founded the Transparent Cities Network.