Ca nsored by cbs this is the cbs evening news with scott pelley. Pelley good evening. The rain keeps coming and the flood keeps rising. Colorado is inundated by the worst flooding in generations and we have just learned that at least four people have been killed and several towns are surrounded by water. This is whats left of highway 7 outside lyons, a raging river tore the road apart. Colorados Governor John Hickenlooper warned people to stay away from the water. He said the dirt and sand have turned it into what he calls liquid cement. In boulder, will pitner was rescued by emergency workers and a neighbor after his home filled with water. Barry petersen tells us there are scenes like that all over. Reporter it is a race to rescue the stranded before the next storm hits. This man made it to safety via a zip line amid cheers from relieved spectators. The National Guard sent helicopters to pluck these people from jamestown, one of several small mountain towns cut off by the floods. Par