The River Wandle is one of three London rivers where stretches will be restored to its natural state to help encourage wildlife and reduce flooding.

Many tributaries of the Thames have been affected by the building of heavily engineered concrete channels and urban developments over the years.

But the London Rivers Action Plan (LRAP), which was launched this month, aims to restore 9.3 miles (15km) of the capitals rivers to a natural condition by 2015.

The other rivers named in the clean up are the Roding and the Colne.

And it is hoped the restoration will attract species such as otters, water voles and kingfishers to the city.

Bella Davies, development officer for the Wandle Trust, said: “The Trust welcomes the launch of the LRAP as it coincides with our own river action plan.

“Our aim is to make the river as sustainable as possible for the wildlife in it and the people who live around it. If anyone has any ideas for the river we encourage them to get in touch.”

Nearly 14 miles (22.5km) of London's rivers have been restored over the past 15 years including the River Ravensbourne and the River Quaggy.

Restoring rivers to their original state can defend against flooding by forming basins which absorb and hold excess water and even help reduce anti-social behaviour in some areas.

Environment Agency project manager Dave Webb said: "We believe we can create important habitats and improve every Londoner's life with new open spaces."

Emily Brennan, director of biodiversity conservation, at London Wildlife Trust, said: "Rivers are the lifeblood of London and this plan is an important step in bringing many of them back to life.”

The LRAP is a partnership between the Greater London Authority, the Environment Agency, Natural England and groups including the Thames Rivers Restoration Trust, London Wildlife Trust and WWF UK.

For more information on the plans visit therrc.co.uk/lrap.php or for to get in touch with the Wandle Trust visit wandletrust.org