Two thirds of the British public (67%) say that the Government does not appear to be in control of the flooding situation in Somerset, according to an ITV index carried out by Comres.
Some 14% said they disagreed with the statement and 19% said they don't know.
In the same poll 71% of those asked say that sending the army to assist the flood relief effort was a good use of resources. 14% disagreed and 15% did not know.
ComRes interviewed 2,043 British adults as part of the poll.
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Ben Wallace said individuals, businesses and communities need to be alert.
Giuseppe Conte travelled to the site of the disaster in the port city late on Tuesday.
Union leaders suggested the Transport Secretary was trying to cap pay rises in the industry.