A pedestrian underpass will be turned into an emergency pond to hold millions of litres of floodwater in south London.
Croydon Council said that the Purley Cross underpass will be used to hold water pumped from around 400 under-threat local buildings, and to stop a water treatment works that supplies tens of thousands of homes from flooding.
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Largely dry night, but showers set to spread in from the west during tomorrow.
Any lingering showers will ease, to leave a dry night with plenty of clear spells. Cloud thickening from the west, but staying dry.