This is not the first time the RAF have been called in recently to assist with flood problems.
https://www.bbc.com/news/uk-england-derbyshire-49199505
Emergency crews are racing to save a damaged reservoir, as "terrified" residents fear their Derbyshire town could be flooded.
Water is being pumped out of the 300-million-gallon Toddbrook Reservoir and an RAF helicopter is dropping 400 tonnes of aggregate around it.
Part of the dam wall collapsed on Thursday afternoon
My concern is how will 400 tonnes of ballast hold 300 million gallons of water!!!!
Better pictures and video here.
https://www.dailymail.co.uk/news/art...rvoir-dam.html