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The Gallery | Water quality improvements in Singapore

Environmental consultant Web Earth is transforming Singapore’s Kallang River by creating a naturalised waterway.

By breaking down the concrete drains and canals built in the 1960s and 1970s, the area is being regenerated and re-naturalised to improve water quality, reduce stormwater flows and improve biodiversity.

Rain gardens and retention ponds have been created along the course to capture and treat runoff from surrounding areas before it enters the river.

By reducing peak storm water flows into the drainage system, the system aims to prevent urban flooding downstream. Water quality should be improved, reducing the need for its treatment when it reaches the reservoir.

The Kallang River is the longest river in Singapore and flows for 10km through the centre of the island.

Web Earth director Richard Outhwaite said: “We make sure that water is managed throughout the treatment, from source to conveyance and retention.

“The issue of dealing with storm water is becoming increasingly important in Singapore and will remain so in the future”.

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