NEW maps reveal the extent of the flooding risk around Bognor Regis.
The updated information from the Environment Agency confirms hundreds of properties are in the high risk zone.
This is defined as having a 1-in-30 chance of being flooded by surface water. The worst affected areas are those along the Aldingbourne Rife and Lidsey Rife as they make their way to the sea at Felpham.
Shripney and parts of North Bersted are at the highest risk, while the areas of medium risk take in more of North Bersted.
Both the railway line and the A29 between Orchard Way and Rowan Way are in the area of highest concern, as well as a lot of out-of-town shopping areas.
The coastal strip across the town’s southern edge is also included.
Rife Way resident Graham Matthews said: “The risk of flooding is not of great concern to me at the moment.
“But what does concern me is the move to put water from the north in the rife quicker.
“If that happens, the pumps at the outfall will have to be upgraded with a bigger capacity. If the Six Villages housing goes ahead, that flow of water in the rife has to be controlled.”
The maps were issued by the Environment Agency last week. Chief executive Dr Paul Leinster, said: “We have used cutting-edge technology to map areas at risk of surface water flooding in England.
“With one in six homes in England at risk of flooding, we urge people to check if they are at risk, and sign up to the free river and coastal flood warnings, by visiting the Environment Agency website.”
The new maps are also intended to help West Sussex County Council to continue its work as the lead flood authority to manage surface water flood risk.
The council has begun to tackle flooding through its Operation Watershed work.
Friends of the Earth climate campaigner Guy Shrubsole said more needed to be done. “Millions of homes across the UK are under threat from surface water flooding.
“MPs must take action by insisting the government fixes its flawed insurance scheme, invests properly in flood defences and does more to cut carbon emissions.”