The Marina Barrage is the result of Minister Mentor Lee Kuan Yew’s vision nearly two decades ago when he envisaged damming the mouth of the Marina Channel to create a freshwater reservoir.
Water supplyLocal catchment water is one of the four national tap. The others are imported water , NEWater and desalinated water. With the Barrage in place , it is able to change a body of fresh water through natural flushing for 1 to 2 years. As the Marina Barrage is one of the pillars of local water supply , it will meet more than 10% of Singapore's country water demands.
Flood Control
The Marina Barrage is part of a comprehensive flood control scheme to alleviate flooding in the low-lying areas in the city such as Chinatown, Boat Quay, Jalan Besar and Geylang. During heavy rain, the series of nine crest gates at the dam will be activated to release excess storm water into the sea when the tide is low. In the case of high tide, giant pumps which are capable of pumping an Olympics-size swimming pool per minute will drain excess storm water into the sea.
Lifestyle Attraction
As the water in the Marina Basin is unaffected by the tides, its water level will be kept constant all year round. This is ideal for all kinds of recreational activities such as boating, windsurfing, kayaking and dragonboating etc.
Looking at the dam from the Green RoofAt the Marina Barrage , we climbed up a slope with grasses on the top. At the top was a picnic area. There were some people having picnic except that it was very hot. The view from the top was very nice.

We could see the difference between Singapore's water and the seawater. In my opinion, Singapore's water was much darker and dirtier than the seawater.
After that we went to Sustainable Singapore Gallery (SSG). There are six galleries inside.

Gallery 1 : Showcases the eviromental challenges of today. Central to this gallery is the " Organic Tree" llluminated by a play of three colours, it symbolises the uncertain state of our present enviroment. They had a wall made entirely of NEWater bottles.
Gallery 2: Rewinding back a few decades, gallery 2 recounts the clean-up of the Singapore and Kallang Rivers. In 1970s, both rivers were like open sewer, choked with rubbish and emitting an unbearable stench. It tells you about how Minister Mentro Lee Kuan Yew change it to the current rivers.
Gallery3: Features the Active, Beautiful, Clean waters Programme, launched by PUB in 2007. See the programme in action, as waterways throughout Singapore are revamped and beautified.

Gallery 4: See the innovative barrage model demonstrating how the Marina Barrrage works.
Gallery 5: Get acquainted with Singapore's careful planning and management of its limited land area to maximise its potential.
Gallery 6: Displays an unwavering commitment from our 3p [ People, Private, Public ] sectors to care for the environment and water. Everyone has a stake in keeping the environment sustainable.
My Reflection
From this trip i have learnt about the different ways Singapore gets its water, how the Marina Barrage started, the way they help the environment and meet Singapore's demand for water supply.
Acknowledgement: The photos are taken by Lincoln, Kelvin at the Marina Barrage. We would like to thank the authorities for allowing us to take photos.