Heavy rain has also caused surface flooding in parts of Devon, including the A396 between Bickleigh and Rewe.
Forecasters have also warned of the risk of "localised surface water flooding and possible disruption to travel" in the worst hit areas.
Plymouth City Council said it had crews out clearing drains and dealing with surface water flooding after a large number of calls from people across the city.
BBC: Devon and Cornwall rail lines 'expected to reopen' soon
The EA said the scheme would not address the surface and groundwater flooding which were experienced in Newbury in 2007, but said they would be investigated separately.
Residents said they were concerned that problems were caused by surface water and river flooding.
Rain and thawing snow could cause localised flooding and surface water on roads and fields, it said.
The research, published online Thursday in the journal Science, offers a new perspective below the Martian surface and hints of past flooding at a time when the planet was mostly thought to be cold and desert-like.
An estimated 100-150 tons of debris was spread across the road and torrential rainfall blocked the drainage system, causing severe flooding on the road surface.
In Cornwall, the A39 at Perranarworthal is closed in both directions because of flooding and a poor road surface.
As a result, the Environment Agency is working with local authorities and emergency services to prepare for possible flooding from rivers, groundwater and surface water across the country over the weekend.
Crews have been pumping out surface water overnight in four areas to prevent further flooding.
According to the government, current estimates show that one in six properties in Wales are at risk of flooding from rivers, the sea and surface water.
Even so, given the size of the storm and the extent of flooding, Mr. Cooper said issues could surface that might delay the starting and repair process.
Now scientists peering below the surface have uncovered the first evidence of underground channels apparently created by flooding a finding that's expected to further illuminate the role of water in Mars' history.
Flooding in July, November and December inundated a number of homes and businesses and damaged the road surface.
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