That video of the Portland ice storm I posted yesterday is kid stuff compared to this footage from a tunnel in Russia. According to the accompanying text on YouTube, "This 3150 m long tunnel in Russia is the longest in-city tunnel of Europe. There is a river running over it and water leaks at some points. When the temperature reaches -38 degrees like it did this winter, the road freezes and the result is the attached video taken during a single day with the tunnel camera."