Torrential downpours have unleashed major flash flooding in Colorado leaving at least three people dead and a road collapsed. Thousands of people have been forced to flee in Boulder and surrounding cities. A road near Boulder crumbled under the sheer force of a raging river. Three cars plunged into the waters but the drivers managed to be rescued and only suffered minor injuries. The unusually heavy late-summer rains have drenched a stretch of Colorado up to 130 miles long along the eastern slopes of the Rockies. Police said evacuations might be expanded later because of a separate dam breach at a retaining pond in the nearby Rocky Mountain Arsenal National Wildlife Refuge. Report by Ashley Fudge. Subscribe to ITN News! http://bit.ly/itnytsub Like us on Facebook: http://www.facebook.com/itn Follow us on Twitter: http://twitter.com/itn Visit our homepage: http://itn.co.uk More stories from ITN: HILARIOUS: Frog photoboms NASA rocket launch: http://bit.ly/15WIXFi Prince Williams quits the RAF to focus on Royal duties: http://bit.ly/15njtPb MP fires AK-47 during parliament session in Jordan: http://bit.ly/18esSec 9/11 widower returns to top of World Trade Center: http://bit.ly/1e2gFLS CCTV- Burger van bursts into flames after worker lights cigarette: http://bit.ly/16mynoJ Apple unveils new iPhone 5S and iPhone 5C: http://bit.ly/15QNEe1 President Obama: 'I've spoken to Putin about a Syria weapons handover': http://bit.ly/15gYo8O Drink driver makes emotional video confession: http://bit.ly/14Im5TP Tokyo wins bid to host 2020 Olympic and Paralympic Games: http://bit.ly/17QNNQE Three-year-old snooker prodigy wows fans: http://bit.ly/14qs1Gc Dramatic phone call with Spanish train driver involved in deadly crash: http://bit.ly/17Kkjne Anthony Weiner fights with heckler in New York bakery: http://bit.ly/17d1pGT More than 100 vehicles pile-up in massive UK car crash: http://bit.ly/1ehKkPS Why was Foreign Secretary William Hague at the GQ Awards?: http://bit.ly/13dAJ7V CCTV: Shocking moment man deliberately pushes trolley in front of train: http://bit.ly/17yXapG Ariel Castro found dead in Ohio prison cell: http://bit.ly/19hLUgO Police horses escape and stampede down Mexico City streets: http://bit.ly/17sOWeG Dennis Rodman returns to North Korea to see 'friend' Kim Jong-un: http://bit.ly/1dLG9Oz CRAZY COLLECTION. Man owns 6,000 Barbie dolls: http://bit.ly/17nEfu3 NARROW ESCAPE. Giant boulder nearly crushes car: http://bit.ly/17wh0BU Gareth Bale becomes world's most expensive footballer: http://bit.ly/15ykHlQ Buildings swept away in giant China landslide: http://bit.ly/146d2B5 Syria conflict explained: What caused the crisis in Syria?: http://bit.ly/15lWKOD Six-year-old boy's eyes gauged out in horrific attack: http://bit.ly/19Z1JgW Check out Truthloader, the new home of citizen journalism on YouTube. Subscribe now at http://bit.ly/tldrsub See 2013's Most Watched Videos: http://bit.ly/14iM9r5 See our Top 20 Most Watched Videos: http://bit.ly/11GI36D See 2012's Most Watched Videos: http://bit.ly/18R1boW