Maps show the catastrophic consequences of a reservoir dam bursting walesonline.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from walesonline.co.uk Daily Mail and Mail on Sunday newspapers.
10 emergency maps of burst North Wales reservoir dams show potential 'catastrophic' flooding effect dailypost.co.uk - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from dailypost.co.uk Daily Mail and Mail on Sunday newspapers.