Combating Floods on Alaskan Highways

To prevent flooding and road closures that can cost up to $1 million per day, Alaska s Department of Transportation undertakes dangerous flood control work on top of frozen river channels. ALASKA MEGA MACHINES Wednesdays at 10/9c on Science http://www.sciencechannel.com/alaska-mega-machines/ Subscribe to Science Channel: http://bit.ly/SubscribeScience Facebook: https://www.facebook.com/ScienceChannel Twitter: https://twitter.com/ScienceChannel