Floating bulldozer to crack through B.C. ice jam
Sorry but it looks nothing like a "bulldozer". It looks like an excavator. Funny enough, the story itself explains that it is an Amphibex Excavator. Some headline writer does not know of what he writes obviously.
It sure sounds like an expensive way to remove an ice jamb. At the beginning of this saga back in December of 07, I could not help but wonder why they did not simply blow this thing. Guess over the years we have forgotten more than we have ever learned from our elders. Its a frickin ice jamb, a few well placed sticks of dynamite would have cleared this thing in no time at all. Strange how a "third world" country like China still knows how to deal with these.
Nowadays, explosives dropped from aircraft are used to break the ice dams before they become dangerous.
It must be rocket science...