The A22 is closed in both directions at Whitesmith due to a low hanging power cable between Park Lane (Park Corner) and B2124 (Golden Cross).
A diversion is in place via the B2124 and the Show Roundabout.
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The Orkney Islands took second place, followed by Rutland and Wychavon while last year's winner Winchester falls to fifth place.
With more people in the UK living in temporary accommodation, parts of England will soon trial a scheme which has tackled the problem.