The Derbyshire town of Whaley Bridge was evacuated following a warning from the Environment Agency that lives are at risk from flooding.
Toddbrook Reservoir, which contains 1.3 million tonnes of water, sits above hundreds of homes and businesses in the town.
Businesses and residents tell Sky News of what happened next
Follow us on Twitter: https://twitter.com/skynews
Like us on Facebook: https://www.facebook.com/skynews
Follow us on Instagram: https://www.instagram.com/skynews
For more content go to http://news.sky.com and download our apps:
Apple: https://itunes.apple.com/gb/app/sky-news/id316391924?mt=8
Android https://play.google.com/store/apps/details?id=com.bskyb.skynews.android&hl=en_GB