Chennai is ready to adopt innovative water management strategies to prevent urban floods and turn it into a sponge city.
The Sponge City concept seeks to make urban areas more permeable, providing more open space for rainwater harvesting as well as access to water.
The Water Resources Department in Chennai is exploring the possibility of digging recharge shafts in small reservoirs across the city.
This recharge shaft can be dug to a depth of 80-90 feet. This will help refill the water level.
According to the plan, small reservoirs and temple tanks can be used to store excess water during heavy rains.
What is Sponge City?
Sponge City is a new urban construction model for flood management and strengthening ecological infrastructure and drainage systems. The concept was proposed by Chinese researchers in 2000. The concept was adopted in 2014 by the Chinese Communist Party and the State Council as "urbanization policy". This system helps reduce the impact of urban flooding, urban heat island and depletion of water resources. It improves the ecological environment and biodiversity by absorbing and capturing rainwater and using it to reduce flooding. Sponge City's policy is nature-based solutions, which use natural landscapes for water storage, storage and cleaning.
Sponge Cities Mission in India
Sponge City's main idea is to make cities more permeable to storing and using the water that falls on it. All of these will be applied on the lines of National Heritage City Development & Augmentation Yojana (HRIDAY), Atal Mission for Rejuvenation & Urban Transformation (AMRUT) and Smart City Mission as it can be effectively delivered through the mission as an urban.
What is the need of Sponge City Mission in India?
India needs sponge cities because,
Urban floods have become a common occurrence in Indian metros.
India's land policy has not been effective in managing or controlling recurrence in urban areas.
Cities lack proper drainage network.
Concrete constructions in cities are wasting water.
FAQs - You will find the answers to all the questions below in this article.
What is sponge city concept?
A Sponge City is a city that has the capacity to mainstream urban water management into the urban planning policies and designs. ... City governments at all institutional levels have to support the implementation of the Sponge City approach in new built-up areas of city districts, industrial parks and development zones.
What do sponge cities do?
China's sponge city program aims to use pervious pavements, rain gardens, green roofs, urban wetlands, and other innovations to absorb water during storms. The soil then purifies that water and gradually releases it – much like a sponge.
What is the sponge city initiative?
The “Sponge City” initiative is a Chinese national policy framework that focuses on sustainable urban stormwater management in 16 Chinese cities. ... A massive project, the Sponge Cities Initiative is a collaborative effort among city regulators, property owners, and engineers.
How is sponge city made?
As it rain, water is absorbed by the ground and naturally filtered by the soil. We can then extract this water by drilling wells into the ground and pumping water out of it. The water is then collected and treated before is distributed across the city and can reach every tap in each of our houses and offices.
Who invented sponge cities?
The idea was initially developed by Professor Kongjian Yu, stemming from his work in landscape architecture at Harvard University and his desire to tackle flooding issues in Chinese cities. Over the past 20 years, sponge city architecture has grown across the country.
Is there any sponge city in India?
Similarly, Gurugram comes to a complete standstill during the monsoon months. And for Mumbai, the monsoon means flooding and enormous damages.
How many sponge cities are there?
Since 2014, there have been two batches of 30 different pilot sponge cities implemented across China, with 16 schemes starting in 2015 and 14 in 2016. The pilot studies, such as in Beijing, Tianjin, Wuhan and Shenzhen, are creating practical, localised experiences in implementing IUWM strategies.
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